ML062280369

Calculation No. M-DSC-354, Revision 1, Pressurizer Bottom Head Instrument Action Level Nozzle Evaluation.

ML062280369
Person / Time
Site:	San Onofre
Issue date:	07/11/2006
From:	Rainsberry J Southern California Edison Co
To:	Office of Nuclear Reactor Regulation
References
M-DSC-354, Rev 1
Download: ML062280369 (140)

Text

{{#Wiki_filter:CALCULATION NO.: M-DSC-354 REVISION 1 TITLE: PRESSURIZER BOTTOM HEAD INSTRUMENTATION LEVEL NOZZLE EVALUATION FROM: J. RAINSBERRY ORGANIZATION: SOUTHERN CALIFORNIA EDISON DATE: JULY 11, 2006 PLANT NAME: SAN ONOFRE NUCLEAR GENERATING STATION, UNITS 2 AND 3 DOCKET NOS.: 50-361 AND 50-362

,"N. Kaly Kalyanam" To <rainsbjl@songs.sce.com>

             <NXK@nrc.gov>

cc 07/11/2006 11:35 AM bcc Subject Calculation M-DSC-354 Rev. 1 HIstory. This message has been replied to and forwarded.

Jack, Can you please send me a copy (Electonic or hard copy - electronic is preferred, but either one is fine, ) of the calculation referenced below, done for Relief Request ISI-3-17?

M-DSC-354 Rev. 1: PRESSURIZER BOTTOM HEAD INSTRUMENTATION LEVEL NOZZLE EVALUATION This might have been sent once. However, I am unable to locate it. Thanks Kaly

                                                                                      /

CALCULATION TITLE PAGE I ICCN NOJ PRELIM. CCN NO. IPAGE OF CCN CONVERSION: Catc. No. M-DSC-354 ECP No. &Rev. NIA CON NO. CCN-Subject PRESSURIZER BOTTOM HEAD INSTRUMENTATION LEVEL NOZZLE EVALUATION- SONGS UNITS 2 AND 3 Sheet 1 of 97 System Number/Primary Station System Designator 1201 8BBB SONGS Unit 2 AND 3 a-Class I Tech. SpecJLCS Affecting? 0 NO [I YES, Section No. Equipment Tag No. S2(3)1201ME087 Site Programs/Procedure Impact? Z] NO 0 YES, AR No. 10CFR50.59/72.48 REVIEW CONTROLLED COMPUTER PROGRAM I DATABASE IS THIS CALCULATION REVISION PROGRAM / DATABASE NAME(S)- VERSION / RELEASE NO.(S) BEING ISSUED SOLELY TO 0 PROGRAM INCORPORATE CCNs? 0 ALSO, LISTED BELOW [@NO [I YES 0 DATABASE Cosmos 1.71/1.75 AR No. 030900690-2 ACCORDING TO SO123-XXIV-5.1 RECORDS OF ISSUES RDRVI TOTAL PREPARED BY: APPROVED BY: DISC. DESCRIPTION SHTS. (Print name/sign/date) (Signature/date) LAST SHT. Initial POS Block - Requires PQS T3EN64 Initial POS Block - Requires POS T3EN64 1 SEE BELOW 97 " ORI.'*

                                                                 -        '%s-E-          P/       .-           FILS r
                                                                                                               ,qU!9                                   3Y-N-M/                                            C-6       IRE     "'-      CO"O(L-POSVER. BY:JL;-           Other                       POS VER BY:.

ORIG. P0S VER. BY: FLS POS VER. BY:. IRE P0S VER BY: - Other . P0S VERL BY: ORIG. POS VER.BY: . FLS POS VERL BY:. IRE POS VER. BY:. Other POS VERI BY:_ ORIG. POS VER. BY: - FLS P0S VEI.BY: IRE Pas VER. BY: _ Other POS VEIL BY: Space for RPE Stamp. identify use of an alternate calc., and notes as applicable. THE FINITE ELEMENT PROGRAM COSMOS WAS USED BY APTECH ENGINEERING TO GENERATE THE FINITE ELEMENT MODELS USED INTHE EVALUATION.

          ° REVISION 1 IS ISSUED TO PROVIDETECHNICAL JUSTIFICATION FOR NONCIRCULAR WELD PAD SHAPES.

I owAulli- Ioufos This calc. was prepared for the identified ISCO ECP. ECP completion and turnover acceptance to be verified by receipt of a memorandum directing ECN Conversion. Upon receipt, this calc. represents the as-built condition. Memo date ___ by SCE26421-1 AEV. 6 405 [REFERENCE .SITE FILE COPY Site File Copy I-DSC-354

ICCN NOJ CALCULATION CROSS-INDEX PRELIM. CCN NO. PAGE_ OF_ Calculation No. M-DSC-354 CcN NO. CCN-Sheet 2 of_ I CCN CONVERSION: I INPUTSOUT UTPTS CaIc. rev. Does the Identify output Interface number and These Interfacing calculations and/or Results and conclusion of the output interface calc/document responsible documents provide Input to the subject subject calculation are used in calc/document FLS Initials calculation, and if revised may require these Interfacing calculations require CON, ECP. TCN/Rev., or and date revision of the subject calculation, and/or documents. Change? tracking number. Calc"Document No. Rev. No. Caic/Document No. Rev. No. YES INO SPECIFICATION NO. S023-919-3, 8 0-(A PROJECT SPECIFIC*JION FOR 1 Z3 (0 - PRESSURIZER ASSEMBLY DRAWING NO. S023.919-79, 0 PRESSURIZER GENERAL ARRANGEMENT DRAWING NO. S023-919-2. 9 PRESSURIZER OUTLINE FOR SAN ___ONOFRE II DRAWING NO. 8023-919-57, 0 PRESSURIZER OUTLINE FOR SAN ONOFRE III DRAWING NO. S023-919.13, BOTTOM 2 HEAD WELDING AND MACHINING SCE26-424 REV. 6 V0'5

IREFERENCE:

S01123-MXV-7.1 511 C-n

CALCULATION CROSS-INDEX Calculation No. M-DSC-354 Sheet INPUTS OUTPUTS Cate. rev. Does the Identify output interface number and These Interfacing calculations and/or Results and conclusion of the output interface calc/document responsible documents provide input to the subject sublect calculation are used In caic/document FLS initials calculation, and if revised may require these interfacing calculations require CCN, ECP, TCN/Rev., or and date revision of the subject calculation, and/or documents. Change? tracking number. Ca.c/Document No. Rev. No. Caic/Document No. Rev. No. YES NO

     .               Drawing 41011, Sheet 6,                              0 Pressurizer Nozzle detail Drawing 41116, Sheet 2, Primary                      3 System Instrument Nozzle details Drawing 41116, Sheet 6, Primary                      0 System Instrument Nozzle details SCE 26-424 REV.5 12/05 (

REFERENCE:

S0123.XXIV.7.151

CALCULATION CROSS-INDEX SECN No./CCN N-o PRELIM. NO. PAGE __9 OF _ Calculation No. M-DSC-354 Sheet of ICCN NO. CCN-- 2... CCN CONVERSION: I INPUTS OUTPUTS Calc. rev. number and These Interfacing calculations andlor Does the Identify output interface Results and conclusion of the output Interface caic/document responsible documents provide Input to the subject subject calculation are used In FLS initials calculation, and Ifrevised may require calddocument these interfacing calculations require CCN. ECP. TCNiRev., or and date revision of the subject calculation. and/or documents. Change? tracking number. CalclDocument No. Rev. No. CalclDocument No. Rev. No. YES I NO 1W ECP 031100614-5 - 41011 Sht. 7 0 No New drawing 41011 Sht. 8 0 No New drawing 41011 Sht. 8 0 F1 4O Ih8 0i SCE-2e424 REV.6 12105(RtFERFENCE:S0123-XXIV-7.15J

CALCULATION COVER SHEET SCE No. M-DSC-354, Rev. SHEET 3 OF Calculation No.: AES-C-3213-1 Client: Southern California Edison Company

Title:

Pressurizer Bottom Head Instrumentation Project No.: AES 97103213-IQ Level Nozzle Evaluation - SONGS, Units 2 and 3 APTECH Office: Sunnyvale Sheet No. 1 of 66 0l Uncontrolled U Controlled Document Control No.: 1-2

Purpose:

The purpose of this calculation is to evaluate the replacement design for the instrumentation nozzle penetration in the pressurizer bottom head. This calculation addresses the allowablc stress limits and fatigue evaluation requirements of NB-3200 of the American Society of Mechanical Engineers (ASME) Code, Section 11I. The original design loadings for a 40 year design basis are considered in the calculation. Appendix C has been added to original calculation which provides technical justification for noncircular weld pad shapes. Assumptions: The analysis assumptions are described in Section 3. el'ecco NO. - Cc.N CoNV01' ON-3 cc-,N No -I- J-e~3 oft Results: The results of this calculation are summarized in Section 2. The stress allowables of ASME Section III are satisfied for all design requirements, including normal, upset, faulted, and test conditions. The nozzle is exempt from fatigue evaluation per NB-3222.4(d), as shown in Section 8. Reconciliation assessments for other pad shapes (Appendix C) and modified nozzle sleeve geometry (Appendix D) also meet ASME Section III requirements. Prepared Checked Verified Approved Revision By By By By Revision Description No. Date Date Date Date 1 RCC CQL MTC RCC Modification to stress summary tables in Section 8 3/30/98 3/30/98 3/30/98 3/30/98 (Original signatures on file) 2 RCC MTC MTC RCC Addition of reconciliation to cover noncircular pad 12/8/05 12/8/05 12/8/05 12/8/05 shape - Appendix C. (Original signatures on file) 3lee_ , 1'rt. ___-- Addition of reconciliation for modified nozzle sleeve _ o to__ _? vi 7c'io(& (Appendix D). QAN45 EN INEE PTIECHIN REV. 8196 ENGINEERING SESRVICES. INC. M-DSC-354

rp°ell'm CC" ~o W- - - EARPTtECSC cc.r*We o. CN- 0 F9 SCE No. M-DSC-354, Rev. 4-ENGINEERIN13 SERVICES. INC. SHEET 4 OF Date/ //6 Clent: Calculation No.: AES-C-3213-: Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level -'I-*r-.. /-/'" c4 ( AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 2 of 66 STRESS REPORT CERTIFICATION STATEMENT The undersigned, a Registered Professional Engineer competent in the field of vessel/piping design and stress analysis, certifies that the stress report complies with the requirements of the Design Specification and Section III of ASME Boiler and Pressure Vessel Code 1971 Edition through Summer 1971 addenda, is correct and complete with respect to the design calculations set forth in this report. A'- Registered Professional 1ýngineer Date State of California Certificate Number 1I9 7 QAE17 REV 8196 9-DSC-354

APTIECH10 SCE No. M-DSC-354, Rev. _ ENINEERING SERVICES. NC. SHEET 5 OF Madey. Date: Client: Calculation No.: AES-C-3213-1 ^'1<_ _ _ ._.._c._ _" SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level -"--t.- t pC, ,) " AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 2 1-2 3 of 66 TABLE OF CONTENTS STRESS REPORT CERTIFICATION STATEMENT 2

1.0 INTRODUCTION

5 2.0

SUMMARY

OF RESULTS 8 2.1 Stress Allowable Limits 8 2.2 Fatigue Analysis 8 2.3 Weld Pad Geometry 8 3.0 ANALYSIS ASSUMPTIONS 10 4.0 METHODOLOGY 11 4.1 Finite Element Model 11 4.2 Mechanical Loads 11 4.3 Thermal Transient Analysis 14 4.4 Fatigue Analysis 15 5.0 DESIGN INPUT 18 5.1 Component Geometry 18 5.2 Design and Operating Conditions 19 5.3 Material Properties 20

6.0 REFERENCES

29 7.0 NOMENCLATURE 31 8.0 CALCULATIONS 33 8.1 Load Combinations 33 8.2 Applied Loading Conditions 33 8.2.1 Pressure Loads 33 8.2.2 Thermal Loads 33 8.2.3 Mechanical Pipe Loads 34 8.3 Finite Element Analysis 35 8.3.1 Finite Element Model 35 8.3.2 Unit Load Conditions 35 QAE17 REV 8196 4-DSC-354

fl-e krr" CciN ý o 'L WAPTECHI SCE No. M-DSC-354, Rev. 3' ENGINEERING SERVICES. INC. C,"lJ IO. acN- 2.- ,,e ."J8 SHEET & OF M-ade by: Date:- Client: Calculation No.: AES-C-3213-1 db//6, SCe Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e , , q-5*.., ABS 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control 1*o.: Sheet No.: 3 1-2 4 of 66 8.4 Analysis Results 40 8.4.1 Unit Load Results 40 8.4.2 Load Combination Factors 41 8.5 Code Evaluation 42 8.6 Fatigue Evaluation 46 APPENDIX A -

SUMMARY

OF STRESSES FOR A-1 of UNIT LOAD CASES A-12 APPENDIX B -LOAD COMBINATION STRESS

SUMMARY

B-1 of B-11 APPENDIX C -WELD PAD GEOMETRY RECONCILIATION C-1 of C-6 APPENDIX D -- MODIFIED NOZZLE SLEEVE REPAIR D-1 of RECONCILIATION D-34 APPENDIX E - UNIT 3 BOTTOM HEAD HALF-NOZZLE DESIGN RECONCILIATION E-1 of E-5 QAE17 REV 8/96 M-DSC-354 I-DSC-354

HAPTEC7H1 c CW caN"L-6A ioN. SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. #'C. O'c W0 C.... J, Rpjt.6 oF SHEET 7 OF___ Made by: Date: Client: Calculation No.: AES-C-3213-1 ___________- SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level . a-tC C-",..4 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 5 of 66

1.0 INTRODUCTION

The pressurizers at San Onofre Nuclear Generating Station, Units 2 and 3 (SONGS 2 and 3) are provided with several small instrumentation nozzles. There are two 3/4-inch instrumentation level nozzles per pressurizer that penetrate the bottom head. The design conditions for the pressurizer are given in the design specifications (Refs. 1 and 2). A replacement nozzle design made of Inconel 690 has been developed by Southern California Edison Company (SCE). The replacement nozzle is of similar configuration to the original design except that the attachment weld is located on the outside diameter (OD) side of the primary head rather than on the inside diameter (ID) side. This nozzle design will replace the existing Inconel 600 level nozzles in the event that repairs to the original nozzles become necessary. The original nozzle configuration is shown in Figure 1-1 (Ref. 3). The original nozzle is attached to the head by a J-groove weld at the ID surface of the head. The original design analysis for this nozzle is documented in Ref. 4. The replacement design is shown in Figure 1-2 (Ref. 5). The new design is installed by cutting and removing an outer segment of the existing nozzle, laying down a base pad on the OD by welding, and installing a new nozzle by a J-groove attachment weld with a reinforcing fillet to the base pad. The purpose of this calculation is to demonstrate that the replacement design meets the stress allowable limits and fatigue requirements of the American Society of Mechanical Engineers (ASME) Code, Section II, 1971 Edition through Summer 1971 Addenda (Ref. 6). The design analysis for this replacement nozzle is based on a 40 year design condition consistent with the original design specification. The original calculation (Rev. 1) covers a circular weld pad geometry as modeled in the finite element stress analysis (i.e., axisymmetric model). The circular weld pad ligament length is 1.375 inches and the thickness is 7/16 inch. Revision 2 provides the technical basis and engineering reconciliation to cover a noncircular pad shape (i.e., six-sided nonsymmetric polygon) of similar ligament length and thickness. There is no impact to the results or conclusion of the original analysis. The details of this reconciliation are given in Appendix C. In addition, a modified nozzle sleeve repair was used in the repair of 2LT-0110-2 instrumentation level nozzle in the Unit 2 pressurizer. The modified geometry was reconciled to the original calculation as described in Appendix D. QAE17 REV 8196 A-DSC-354

INIPTECEI EN--------GINEERING* SERVICES. INC. SCE No. M-DSC-354, Rev. SHEET 9 OF Made by. Date: Client: Calculation No.: AES-C-3213-1 ___eb__ 9114 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level C'&..- 1,/i / AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 1_ _0_1-2 6 o f 66

                                       -'C ~. ..d Figure 1 Original Nozzle Configuration.

QAE17 REV 8196 I-DSC-354

I SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 9 OF Calculation No.: AES-C-3213-1 Mad by Dat Date>/4* SCE Client: Checked by: Date: Projcct No.:

Title:

Pressurizer Bottom Head Instrumentation Level (e2L. /t /rf8 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 7 of 66 PZR LONER LEVEL INSERT ASSY (41116 SH. 2) PZR BOTTOM HEAD SA-533 GR. B CL Er WPZOB' E=0. (MIN TRI4OAT) -13" .5 05 DI D U 0 con

                                                                 -H--

IINCONEL I WrELD BUILD-UP En __411.050'*+.015" O.D. h X 0.614 I Figure 1 Replacement Design Nozzle Configuration. QAE17 REV 8196 I-DSC-354

frv-J7M CrC- 00-1 1 Ccctj COWtVG6VýI0W4 SCE No. M-DSC-354, Rev. SERVICES. INQ ENGINEERIZNG CC.N IJo.c-" I-war7 oF SHEET 10 OF Made by: Date,,, Client: Calculation No.: AES-C-3213-1 _ ____ M 91iOf SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level -P"1-r V I-ca.., cjt* AES 97103213-10 Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 8 of 66 2.0

SUMMARY

OF RESULTS 2.1 Stress Allowable Limits The code evaluation per NB-3200 of ASME Section III was performed at four critical locations in the nozzle-to-head penetration. The four critical sections and ID/OD nodal locations are illustrated in Figure 2-1. The four locations were selected on the basis of maximum computed peak and bending stresses for the individual load cases analyzed. All calculated stresses meet the ASME Code stress limits, as summarized below: Allowable Stress Ratio Primary + Secondary PrimaryI Stress Stress PM__J PL + Pb PL + Pb + Q Section Design 0.62 0.70 --- 3 Normal and Upset* --- --- 0.28 3 Faulted 0.26 0.29 --- 3 Test 0.73 0.83 -- 3 Cooldown with thermal stratification As shown above, all stress ratios are less than unity, indicating that the design loadings in this calculation do not exceed the ASME Code stress limits of NB-3200 (Ref. 6). The computed stress intensities and allowable stress limits are presented in Section 8.5. See Appendix D for the evaluation and Code acceptance of the modified nozzle sleeve. 2.2 Fatigue Analysis The fatigue analysis is performed in Section 8.6 of this calculation. This evaluation demonstrates that the nozzle is exempt from detailed fatigue analysis requirements per the exemption rules of NB-3222.4(d). This result is consistent with the original design, which was also exempt from fatigue requirements (Ref. 4). Therefore, no further evaluation for fatigue design (i.e., transient analyses and cyclic evaluation) is required for the replacement nozzle design. 2.3 Weld Pad Geometry The calculations cover a circular weld pad with a ligament length of 1.375" and thickness of 7/16". Appendix C provides the justification and design reconciliation that allows this calculation to cover a general polygon shaped pad provided that the ligament length and thickness are comparable. QAE17 REV 8196 M-DSC-354

I SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET II OF Calculation No.: AES-C-3213-1 1/Dae: 1 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 02(-- I L AS 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 9 of 66 Figure 2 Illustration Showing the Four Critical Sections and ID/OD Nodal Locations that were Evaluated. QAE17 REV 8196 M4-DSC-3 54

[WAPTSCH SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 1/- OF Made b Date-,,, Client: Calculation No.: AES-C-3213-1 _____ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level L /' q AES 97103213-Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 10 of 66 3.0 ANALYSIS ASSUMPTIONS The following assumptions were made in performing the design analysis calculations:

1. The nozzle - head geometry is assumed to be axisymmetric and linear elastic. This assumption, which was made to simplify the finite element model, is consistent with the original design analysis (Ref. 4). The axisymmetric assumption has been evaluated to be reasonable since: (1) the additional metal reinforcement at the weld attachment caused by the nonradial penetration has been conservatively ignored and (2) thermal transient stresses are dominant loads and are not sensitive to three-dimensional geometry effects.

2. The discontinuity effects of the neighboring penetrations are assumed not to be significant since the level nozzle is remote from other penetrations.

3. The cladding on the ID of the head is ignored in the analysis. Since the nozzle attachment is at the OD, this assumption will have little effect on the stresses at the nozzle weld.

4. The mechanical and thermal properties are assumed constant with temperature. An average temperature of 350'F was assumed for defining material properties during transient conditions. This assumption is conservative for operating temperature conditions.

5. The external boundary of the nozzle and bottom head was assumed to be adiabatic in the thermal analysis. This assumption is reasonable since the pressurizer is insulated.

6. The stress results for the bottom head were not explicitly evaluated because the maximum stresses will be concentrated at the nozzle attachment weld. Since the head penetration size remains unchanged, the original design calculations are assumed to apply to the head.

7. The design basis earthquake (DBE) is equivalent to the seismic conditions of safe shutdown earthquake (SSE).

8. For the fatigue evaluation, one seismic event is assumed to cause 40 load cycles. This assumption is consistent with other nozzle calculations (Ref. 7)

QAE17 REV 8)96 M-DSC-354

H-APTECHI SCE No. M-DSC-354, Rev._. ENGINEERING SERVICES. INC. SHEET 13 OF Made by: Date:e Nnt: Calculation No.: AtES-C-3213-1 _Proj sCEet_. Checked by-. Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 062L.- 1/,-{ Z-6 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 11 of 66 4.0 METHODOLOGY The design analysis follows the rules of Subsection NB-3200 of the ASME Code, Section III (Ref. 6). The stress intensities due to design loads (i.e., internal pressure, applied pipe loads, and thermal transients) are calculated by the finite element method (FEM). The FEM was performed with the computer program COSMOS/M (Ref. 8). The COSMOS/M code has been independently verified. The geometry of the nozzle-to-head penetration is illustrated in Figure 4-1. 4.1 Finite Element Model The nozzle geometry, including the primary head and weld attachment detail, was modeled by discrete finite elements. The FEM model is shown in Figure 4-2. The elements are 4-noded isoparametric linear elastic formulations and were designed to model the nozzle, base pad weld, and a 15" segment of the spherical head. A finer element mesh is used in the area of the nozzle-to-pad weld to provide greater accuracy where the maximum stress occurs. The larger section of the nozzle is modeled by a segment that extends 5.62 inches outward and 11/16-inch inward relative to the OD surface of the head. The nozzle is attached to the base pad by the attachment weld. This is the only connection between the nozzle and the head. Therefore, the elements of the nozzle and a 0.188 inch portion of the base pad are connected through coincident nodes. The nozzle elements within the head are separate and are not connected with the head. This is a reasonable assumption since a tolerance fit is used between the nozzle OD and the head penetration hole. Additional details of the FEM model are presented in Section 8.3. 4.2 Mechanical Loads The mechanical loads were applied to the model to determine the stresses in the nozzle due to internal pressure and applied pipe loads. Unit loading cases were used to establish the stress response for each individual loading condition. The total stress was computed by elastic superposition of individual unit cases. The unit loading boundary conditions were applied as follows:

1. Internal Pressure, P Internal pressure (P) is applied to the inside surface of the model, including the ID of the head, the ID of the nozzle, and the ID of the hole penetration. In addition, the QAE17 REV 8196 I-DSC-354

SCE No. M-DSC-354, Rev. I RAPTECHI ENGINEERING SERVICES. INC. SHEET /4 OF Made by: Date:'Client: Calculation No.: AES-C-3213-1 /&_____- 'I~/"SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (,7C L I/M/ AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 12 of 66 annulus region between the nozzle stub and head is also pressurized. An end-cap load is applied on the outer end of the nozzle as a pressure, which is calculated from: Pcp= ntr1 P/r.- - ri),psi (4-1)

2. Axial Force, FA A unit axial load (FA) is applied to the outer end of the nozzle to represent axial force from the pipe. This load is uniformly distributed on the nozzle cross-section and applied in the global y - direction. Therefore, 27n FA = fFd0 0

FY = FA /27r, lb/rad (4-2) where Fy is the value of uniform axial force in the FEM model.

3. Lateral Force, FL A unit lateral load (FL) is applied at the outer end of the nozzle in the horizontal and vertical directions. This load is assumed to vary sinusoidally along the circumference.

Therefore, 2% FL = J F. cos 2 OdO 0 F,= FL/n, lbs (4-3) where F. is the magnitude of lateral force at 0 = 00. QAE17 REV 8196 4-DSC-354

IAPTECH SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC, SHEET 15 OF Calculation No.: AES-C-3213-1 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level ea6 L /I -t-/q6 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 13 of 66

4. Bending Moments, M, A unit bending moment (MB) is applied to the outer end of the nozzle. The bending moment is represented by a loading function which is a single harmonic out-of-plane force acting in the axial direction. Therefore, 7r/2 MB = 2 f FyrcOS 2 OdO Fy = MB/lrr, lbs (4-4) where Fy is the magnitude of axial force at 0 = 00 and r is the mean radius of the nozzle.

5. Torsional Moment, MT A unit torsional moment (MT) is applied to the outer end of the nozzle. This torsional moment is applied as a uniform circumferential in-plane force acting on the cross-section, thus producing a twisting force. The in-plane force distribution is given by 2M MT fJ rF, d0 Fý = MT/2nr, lb/rad (4-5) where F. is the magnitude of uniform circumferential force and r is the mean radius of the nozzle.

QAE17 REV 8196 A-DSC-354

RM PTIECHI SCE No. M-DSC-354, Rev./. ENGINEERING SERVICES. INC. SHEET 16 OF Calculation No.: AES-C-3213-1 MeI b Dae SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 6'2L. q q/ AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document -. ntrol No.: Sheet No.: 0 1-2 14 of 66 4.3 Thermal Transient Analysis The heat transfer and thermal stress analyses were performed in a "unit load" format. Like the mechanical loads, unit thermal load cases can be scaled to calculate the thermal stresses associated with each design transient condition. Five thermal cases were developed which are bounding to all transient conditions:

1. Isothermal Steady State An isothermal steady state of 653°F is used to represent a uniform temperature case at operating conditions.

2. Unit Ramp A unit ramp loading at 200°F/hr is used to represent heatup/cooldown transients associated with plant startups and shutdowns.

3. Stratification Transient During plant cooldowns the pressurizer bottom head region may be subjected to thermal stratification, which causes a cooling rate greater than 200°F/hr. This transient is explicitly evaluated as a separate thermal case.

4. Step Change A unit step change of +20'F is used to represent thermal changes during plant load change conditions.

5. Loss of Flow Temperature Change The loss of flow transient causes a -40°F followed by a -20°F ramp change in reactor coolant system temperature, followed by a return to steady-state temperature. This transient is explicitly evaluated as a separate thermal case.

These thermal cases, with appropriate scaling factors will be bounding for the design transients. The design transient conditions are discussed later, in Section 5. In all thermal analyses, conservative film coefficients are used; specifically, a surface heat transfer of 500 BTU/IHrFt2 °F on QAE17 REV 8196 M-DSC-354

SCE No. M-DSC-354, Rev. I EWAPTECHSERtVICES. INC. ENGNEERINc3 SHEET /7 OF Made by: Date Cient: Calculation No.: AES-C-3213-1 //_Il/fa SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 'c/L.. Ili q,1 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 15 of 66 the bottom head and on the inside surfaces of the nozzle and penetration. These assumptions are consistent with the original design (natural convection mode) and other evaluations (Refs. 4 and 7). 4.4 Fatigue Analysis The rules and procedures of Subsection NB-3222.4 are applied to complete the fatigue analysis for cyclic operation. Specifically, the rules for fatigue analysis exemption are applied in the following areas, according to NB-3222.4(d):

1. Atmospheric to operating pressure cycle

2. Normal operating pressure fluctuations

3. Temperature difference for startup and shutdown

4. Temperature difference for normal service

5. Temperature difference for dissimilar materials

6. Mechanical loads cycling Based on the above screening calculations, no fatigue evaluation is required. The details of the above screening calculations are given in Section 8.6.

QAE17 REV 8196 M-DSC-354

SCE No. M-DSC-354, Rev. / ERINGPTECHI ENGINEERING SERVICES. INC. SHEET /S OF Made by: Date: Client: Calculation No.: AES-C-3213 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e'6.2 (. tI 'q , AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 16 of 66 ft1 00 M

                                     -S
                                                                                                             'Z

o. 2q2',

0.5730" Figure 4 Geometry of Nozzle-Head Detail. QAE17 REV 8196 M-DSC-354

SCE No. M-DSC-354, Rev. N EPTSECI ENGINEERING SERVICES. INC. SHEET Iq OF Made by: Date: , Client: Calculation No.: AES-C-3213-1 _____ ___f____ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e4'6&'L N11_1// AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 17 of 66 Head-Figure 4 Finite Element Model. QAE17 REV 8196 A-DSC-354

SCE No. M-DSC-354, Rev. I MAPTECHI ENGJNEERING $EAVICES. INC. SHEET 2.0 OF Mad Date- Client: Calculation No.: AES-C-3213-1i t//9'8 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (6?NL. Lt/ ,& AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 18 of 66 5.0 DESIGN INPUT 5.1 Component Geometry The bottom head instrumentation nozzle is a 3/4-inch Schedule 160 pipe size. The penetration through the spherical head is vertical. A schematic illustration of the nozzle geometry is shown in Figure 5-1 (Refs. 5 and 9). The components of this penetration are described as follows from Refs. 5, and 9 through 11: Nozzle: Outer radius: = 0.525 inch Inner radius: = 0.307 inch Wall thickness: = 0.218 inch Inner step length: = 11116 inch (min) Reduced outer radius: = 0.292 inch Reduced inner radius: = 0.125 inch th Bottom Head: Outer radius: = 52.3125 inches Inner radius: = 48.4375 inches (excluding clad) Wall thickness: = 3.875 inches Clad thickness: th = 7/16 inch Hole diameter: = 1.072 inches Base Pad: tp Outer diameter: = 3.80 inches Inner diameter: = 1.072 inches Pad thickness: = 0.4375 inch QAE17 REV 8196 4i-DSC-354

MAPTECH SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 2 I OF M' b .. Date: Caient: Calculation No.: AES-C-3213-1 _ ___ _______ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level ('6_L t/) Zjp/ AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 19 of 66 5.2 Design and Operating Conditions The design data for the pressurizer from Ref. 4 are as follows: Design pressure = 2500 psia Design temperature = 700'F Operating pressure = 2250 psia Operating temperature = 653°F Hydrotest pressure = 1.25 PD = 3125 psia (3110 psig) Thermal transients are given in Table 5-1. Five thermal cases are conservatively assumed that envelop the thermal transients. These are:

1. Isothermal steady-state load of 653"F

2. Heatup/cooldown at a rate of 200TF per hour

3. Cooldown with flow stratification

4. Temperature step change of +/-20°F for plant load changes

5. Temperature change of -40*F and -20°F then + 60'F for loss of flow conditions The transient conditions for the above cases are illustrated in Figures 5-2 through 5-5 (Refs. 1 and 12). All normal/upset transients are less severe than loss of flow condition or cooldown transient with flow stratification.

Mechanical loads from attached piping are summarized in Table 5-2 for dead weight (DW) and seismic (OBE and DBE) conditions. Forces (Fa, Fb, F.) and moments (Ml, Mb, Me) are from the piping model and at a node located at the head OD (Ref. 13). QAE17 REV 8/96 [-DSC-354

SCE No. M-DSC-354, Rev. WAPTECH ENGINEEtRt4 SERtVICES. INC. SHEET 22 OF Made by: Date: I Client: Calculation No.: AES-C-3213-1 _ _ _'_//__ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level "Q L.. //, -/f AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document ontrol No.: Sheet No.: 0 1-2 20 of 66 5.3 Material Properties The materials that comprise the bottom head and replacement instrument nozzle (Refs. 1, 4, and 5) are as follows: Bottom head: SA 533, Grade B, Class 1 Head cladding: Stainless steel Instrumentation nozzle: Inconel 690 Pad: Inconel weld In the analysis, the cladding is conservatively ignored. The mechanical strength properties at design temperature are summarized below (Refs. 6 and 14): Mechanical Strength at 700°F Incone1690 SA-533B-1 S,, (ksi) 23.3 26.7 Sy (ksi) 27.6 40.6 S. (ksi) 85.0* 80.0

• Value at room temperature Also, S. for Inconel 690 at 100lF is 35 ksi.

QAE17 REV 8196 I-DSC-354

SAPTECH SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 23 OF Made by: Date-, Client: Calculation No.: AES-C-3213-1 11"SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e L.-  %/I 1,5 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 21 of 66 The physical properties of the above materials for an average temperature of 350°F are summarized below (Refs. 6 and 15): Inconel 690 SA-533B-1 Modulus of Elasticity, E (x 106 psi) 30.25 27.2 Thermal Expansion, cc (x 10' in/in/*F) 7.63 6.71 Poisson's Ratio, t 0.30 0.30 Thermal Conductivity, K (BTU/HrFt°F) 9.75 32.3 Thermal Diffusivity, d (Ft3/lb) 0.1521 0.5387 Density, p (lb/ft3) 522 488 Specific Heat, C (BTU/lb°F) 0.123 0.123 Note that material properties at 350°F represent the approximate physical properties during transient conditions. Thermal expansion properties are mean coefficients. For evaluation of fatigue, the mechanical properties at operating temperature are used. For a temperature of 653 *F: Inconel 690 SA-533B-1 Modulus of Elasticity, E (x 106 psi) 28.88 25.22 Thermal Expansion, ci (x 10' in/in/IF) 8.54 8.55 The coefficient of thermal expansion, ca,, is the instantaneous value. QAE17 REV 8196 4-DSC-354

1APTECHK SCE No. M-DSC-354, Rev. / ENGINEERING SERVICES. INC. SHEET ,2'. OF Made by: Date Client: Calculation No.: AES-C-3213-1 _ _ _//,//f8 SCE Checked by:. Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (7aL.. tI,,, AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document ntrol No.: Shcet No.: 0 1-2 22 of 66 Table 5-1 THERMAL TRANSIENT CONDITIONS (Refs. I and 12) Symbol Transient Condition Occurrence Al Normal heatup 200*F/hr 500 BI Normal cooldown -200*Flhr 500 B2 Cooldown with stratification Figure 5-3 500 B3 End of cooldown 500 C1 Plant loading, 5% per min. +20*F 106 Plant unloading, 5% per min. 10% step load increase 10% step load decrease Normal plant variation C2 Plant loading, 5% per min. -20*F 106 Plant unloading, 5% per min. 10% step load increase 10% step load decrease Normal plant variation D1 Reactor trip Loss of reactor coolant flow -40'F (50s) 480 Loss of flow/load -20*F (550s) D2 Reactor trip Loss of reactor coolant flow +60OF 480 Loss of flow/load (1400s) El Plant leak test, heat up 200 F1 Plant leak test, cool down 200 F2 End of plant leak test, cool down 200 G1 Hydrostatic test 10 G2 End of hydrostatic test 10 QAE17 REV 8196 4-DSC-354

I SCE No. M-DSC-354, Rev. [fAPTECH ENGINEERING SERVICES. INC. SHEET 2 O OF _ Made by: Date: Client: Calculation No.: AES-C-3213-1 /&!5r: 111o11 6 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 'W.. i// ,Zc8 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 23 of 66 Table 5-2 NOZZLE EXTERNAL LOADS FROM PIPING (Ref. 13) F. Fb F, M, Mb M, Loading (Ib) (Ib) (Ib) (in-lbs) (in-lbs) (in-lbs) Dead weight (DW) -25 0 0 0 0 -60 Seismic (OBE) +/-10 1+/-30 +/-35 1+/-120 +/-420 +/-360 Seismic (DBE) +/-20 +/-60 +/-70 +/-240 1+/-840 +/-720 Notes: F. = Axial to the nozzle, same as Fy in piping model (upward positive) Fb = Lateral to nozzle, same as F, in piping model F. = Lateral to the nozzle, same as F, in piping model Ma, Mb, Me= Moments associated with a, b, c axes QAE17 REV 8/96 94-DSC-354

nAPTECH ENGINEERING SERVICES. INC, SCE No. M-DSC-354, Rev. SHEET 2f- OF Made by. Date' Client: Calculation No.: AES-C-3213-1 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level ZVL.- L/_,-_/_ AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 24 of 66 13 oTrot-1-1.,9 r.

                                                              /.O5TO" Figure 5 Illustration of Nozzle and Head Geometry.

CAE17 REV 8196 I-DSC-354

SCE No. M-DSC-354, Rev. ARPTECHJ ENGINEERING SERVICES. INC. SHEET _7 OF Calculation No.: AES-C-3213-1 Made by:

                                                                 /.lcr-      Date:
                                                                                   ///
                                                                                        /          Client:

SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 2 (- 1/.1.4 q/ 6 AES 97103213-10 Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 25 of 66 HEATUP/COOLDOWN TRANSIENT 700

                           '--'600 6500
                              -400 03 E

H-- 300 L_.

                                 '200 0

0 1 2 3 4 5 Transient time, t (Hours) Figure 5 Design Transient Condition - Heatup/Cooldown at a Rate of 200'F per Hour (Figure 2 of Ref. 1). QAE17 REV 8196 I-DSC-354

SCE No. M-DSC-354, Rev. ENGIN PTECH.I ENGINEERING SERVICES. INC. SHEET _2__ OF Made by: Date: Client: Calculation No.: AES-C-3213-1 ________ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e16L- / ,t/5 ABS 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 26 of 66 COOLDOWN WITH STRATIFICATION 700

                          ,--600 1? 500 C:3 400

(]- E H-- 0a) 300

                          -0       200 r         100 0

0 20 40 60 80 100 120 140 160 180 200 Transient time, t (Min) Figure 5-3 - Transient Condition - Cooldown Stratification Transient (Figure 13 in Ref. 12). QAE17 REV 8196 A-DSC-354

SCE No. M-DSC-354, Rev. ENGINEERING SERVICES, INJC. SHEET .q OF Mad by Date./: Client: Calculation No.: AES-C-3213-1 9,5 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 6?v?_ L. t*_.9: AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 1 27 of 66 STEP LOAD CHANGE

                                 40                   i  i            i      i              +i    i aS30
                             -0       20                                                      +Step Load 7-       10 10
                                   -10
                                                                                              -Step Load
                                ~-20
                                      -30 S I  ,.t  I                  I    I      I        t    I
                                 ~-40 0      5          10            15           20            25            30 C-)

Transient time, t (Min) Figure 5 Design Transient Condition - Temperature Changes of +/-20'F for Plant Loading and Unloading and +/-10% Step Load Change. QAE17 REV 8/96 4-DSC-354

SCE No. M-DSC-354. Rev. ENGINEERING SERVICES. INC. SHEET ,30 OF Calculation No.: AES-C-3213-1 MD / SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level d11.( I/ 178 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 28 of 66 REACTOR TRIP/LOSS OF FLOW

                            - 20                                        I                    I                     I I--             p   I   I   I    I  I   I              I   I   I     I     I   I    I
                           <3
                           -5,
                           ~-40
                              -D a3.,
                            -    -60 I   I   I   ~ S  I  I   I I    I   I   I   I   I                i    I   .

CD) 500 1000 1500 2000 2500 Transient time, t [Sec] Figure 5 Design Transient Condition - Temperature Change During Loss of Flow (Figure 3 of Ref. 1). QAEI7 REV 8/96 I-DSC-354

MIAPTECHI SCE No. M-DSC-354, Rev. INGEER1,G SEVIcES. IMC SHEET 3_) OF Made by: Date: / Client: Calculation No.: AES-C-3213-1 _ ___ /I419 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (_________. L/1.. AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 29 of 66

6.0 REFERENCES

1. "General Specification for a Pressurizer Assembly," Specification No. 00000-PE-130, Revision 3, Combustion Engineering, (October 25, 1972) (ECD-2).

2. "Project Specification for a Pressurizer Assembly for San Onofre Unit No. 2 and 3,"

Specification No. 01370-PE-130, Revision 9, Combustion Engineering, (December 16, 1993) (ECD-3).

3. Drawing S023-919-2.#Rev. 6, "Pressurizer Outline for San Onofre 2," (October 15, 1976)

(ECD-8). n/tIo

4. "Analytical Report for Southern California Edison, San Onofre, Unit 3, Pressurizer (CENC-1296)," (September 1977) (ECD-5).

5. "Pressurizer Primary Instrument Nozzle Geometry, 1/2 Nozzle Repair - Conceptual Design PZR Bottom Level Nozzle," (October 28, 1997) (ECD-6).

6. ASME Boiler andPressure Vessel Code, Section III, "Rules for Construction of Nuclear Power Plant Components," (1971 Edition, 1971 Summer Addenda).

7. Calculation Number M-DSC-260, "Pressurizer Instrumentation Nozzle Evaluation -

SONGS 2," Southern California Edison (March 29, 1992) (ECD-7, Project AES 97063098-1Q).

8. COSMOS/M, Version 1.71/1.75, "User's Manual," Structural Research and Analysis Corporation, (May 1994).

9. Drawing S023-919-79-0, Aao,4, "Pressurizer General Arrangement for San Onofre 3,"

(October 20, 1976) (ECD-11).

10. Drawing S023-919-13-,f, Rev. 2, "Bottom Head Welding & Machining for San Onofre 2,"

(November 7, 1974) (ECD-10).

11. Drawing $2-1201-ML-315, Rev. 0, "From Pressurizer E-087 to Valve R-039," (November 7, 1986) (ECD-13).

QAE17 REV 8196 4-DSC-354

NAPTECHI SCE No. M-DSC-354, Rev. SERVICES. INC. ENGINEERIN~G SHEET 3 O- _ OF Made b: Date- Client: Calculation No.: AES-C-3213-1 D /te SCE Cli Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e6?/L ( 1/. */,6' AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 30 of 66

12. "Pressurizer Stratification and Fatigue Evaluation," CEOG Task 788, CE NPSD-953, (December 1994) (ECD-4).

13. Pressurizer Bottom Head Instrument Nozzle - External Loads at the Outer Weld Location," (October 28, 1997) (ECD-7).

14. Code Case N-474-1, "Design Stress Intensities and Yield Strength Values for UNS N06690 With a Minimum Specified Yield Strength of 35 ksi," Class 1 Components; and Section II, Part B, "Nonferrous Material Specifications," ASME Section III, Div. 1, (1992 Edition).

15. Nuclear Systems MaterialsHandbook, Volume 1 - "Design Data," TID-26666, (Books 3 and 4), Oakridge National Laboratory (1986).

QAE17 REV 8/96 94-DSC-3 54

SCE No. M-DSC-354, Rev. SERVICES. INC. ENGINEER~ING SHEET 3__ OF Made by: Date: Client: Calculation No.: AES-C-3213-1 ________A i -I/9 SCE Checked by. Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level L-- t/,4 &4 AES 97103213-1 Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 31 of 66 7.0 NOMENCLATURE

                                       = Coefficient of thermal expansion, *F-'

Ix. = Coefficient of instantaneous thermal expansion, 'F-' t

                                       = Coefficient of thermal expansion of the head, 'F-cxn                    = Coefficient of thermal expansion of the nozzle, 'F-'

C = Specific heat, BTU/lb *F P = Density, lb/ft3 d = Thermal diffusivity, Ft3 /lb Do = Outer diameter, inch E = Modulus of elasticity, psi Ell = Modulus of elasticity of the head, psi EN = Modulus of elasticity of the nozzle, psi F = Force, lb FA = Axial force, lb FL = Lateral force, lb Fa, Fb, Fe = Forces in the a, b, c directions acting at head surface, lb F*a, F*b, F*c = Forces in the a, b, c directions acting at nozzle end, lb F., Fy, F, = Forces in the x, y, z directions, lb K = Thermal conductivity, BTU/HrFt°F MB = Bending moment, in-lb MT = Torsion, in-lb Ma, Mb, Mc = Moments in the a, b, c directions acting at head surface, in-lb M' , M*b, M*. = Moments in the a, b, c directions acting at nozzle end, in-lb MX, my, MN = Moments in the x, y, z directions, in-lb QAE17 REV 8196 4-DSC-354

H444------VH, SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 34 OF Calculation No.: AES-C-3213-1 SCE Checked by- Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (,at- t/1 q AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 32 of 66 n = Number of cycles u = Poisson's ratio P = Pressure, psi PD = Design pressure, psi AP = Pressure fluctuation, psi APSIG = Significant pressure fluctuation, psi r = Mean nozzle radius, inch

r. = Outer radius of nozzle, inch ri = Inner radius of nozzle, inch R. = Outer radius of head, inch R," = Inner radius of head, inch Sa = Stress value from design fatigue curve, psi Sm = Allowable stress intensity, psi S,, = Ultimate strength, psi SY = Yield strength, psi t = Wall thickness, inch T = Temperature, *F AT = Temperature difference, 'F ATs 51 = Significant temperature difference fluctuation, *F t' = Clad thickness, inch tp = Pad thickness, inch th = Head thickness, inch QAE17 REV 8196 A-DSC-354

SCE No. M-DSC-354, *Rev. / SMAPTECHI ENGINEERING SERYICES. INC. SHEET 3__ OF Made&_. Date- Client: Calculation No.: AES-C-3213-1 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (,Q L q

                                                                                  /*              AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3         Revision No.:  Document Control No.: Sheet No.:

0 1-2 33 of 66 8.0 CALCULATIONS 8.1 Load Combinations The design calculation of the pressurizer bottom head instrumentation nozzle defines the following loading conditions: pressure loads, applied piping loads, and thermal transient loads. In accordance with the design calculations, the above loads are combined to meet the requirements of ASME Section III, NB-3200 (Ref. 6). The following load combinations and service level definitions are used, as established from the appropriate design documents and references (Refs. 1, 4, 6, and 7): Design Condition: PD + DW + OBE Normal and Upset Conditions: P + DW+OBE +THER Faulted Conditions: PD + DW + DBE Test Conditions: P+DW 8.2 Applied Loading Conditions The loading conditions include pressure, thermal transient loads, and mechanical piping loads as described below. 8.2.1 Pressure Loads The design pressure of 2500 psia (2485 psig) is conservatively used to define internal pressure for all operating and faulted loading conditions. The design temperature of 700"F is used to define the material strength and stress allowables for all plant operating conditions. 8.2.2 Thermal Loads The thermal transients are based on design conditions in Refs. 1 and 12, as discussed in Section 4. The thermal transients associated with plant conditions are given in Table 5-1. Five thermal cases are used in this evaluation. These thermal cases are described in Section 4.3. QAE17 REV 8196 M-DSC-354

SCE No. M-DSC-354, Rev. _ ENGINEERING SERVICES. INC. SHEET 3_ OF Calculation No.: AES-C-3213-1 Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Sheet No.: 34 of 66 8.2.3 Mechanical Pipe Loads The mechanical loads from attached piping used in this analysis are obtained from Ref. 13 and are summarized in Table 5-2. These loads act on the head surface and are adjusted by the following relations to allow for load application at the nozzle end in the FEM model: F*A = Fa = FA M*a =M. =MT F*b = Fb M*b, = Mb - FcI M* c M.-FbQ where I is the length of the nozzle in the model (Q= 5.62 inches). Also, the in-plane (horizontal and vertical) shear and bending moments are combined vectorily to give the absolute magnitude of lateral force (FL) and bending moment (MB): FL = [F- 2 +F 2 112 2 11 /2 MB = [M*2 +M ] Applying the above steps gives the following tabular summary for maximum absolute values of mechanical loads: FA FL MT MB (lbs) (lbs) (in-lbs) (in-lbs) DW 25 0 0 60 DW + OBE 35 46.1 120 336 DW + DBE 45 92.2 240 629 QAE17 REV 8196 Ai-DSC-354

MAPECH ,SCE No. M-DSC-354, Rev. ENGINEERION SERVICES. IC. SHEET 37 OF Made by: Date: Client: Calculation No.: AES-C-3213-1 ___/_/_ '8 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level "?-2 L-- t'/ ,4/q AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 35 of 66 8.3 Finite Element Analysis 8.3.1 Finite Element Model The FEM model is an axisymmetric representation of the nozzle, base pad, and bottom head. The model was developed with COSMOS/M (Ref. 8). A plot of the FEM mesh and boundary conditions is shown in Figure 8-1. There are 1807 isoparametric elements (1965 nodes) designated as PLANE2D in COSMOS/M. The nozzle is attached to the welded portion of the pad by common nodes. The portion of the nozzle extending into the head is free. The annulus between the nozzle and head is open and provides a boundary to both the nozzle and head for pressure and thermal loads. The same model is used to perform the thermal analysis. Material properties taken at an average metal temperature of 350"F are assumed in the model (see Section 5.3). A heat transfer coefficient of 500 BTU/IHrFtZOF is conservatively assumed for the bottom head inside surface. The inner surfaces of the nozzle and head penetration also have a film coefficient of 500 BTU/HrFt2 °F. Symmetry boundary conditions are used at the end of the spherical head. Both axisymmetric and nonaxisymmetric loading conditions are used to represent the pressure and mechanical loads, as appropriate. Other details of the model and assumptions are provided in Sections 3 and 4. 8.3.2 Unit Load Conditions There are ten unit load cases evaluated with the FEM model. These cases are later combined with appropriate scaling factors to produce the total stress state for each plant condition. The unit load cases are developed below following the method described in Section 4. Case 1 - Internal Pressure (p = 2500.psia) A design pressure of 2500 psia (2485 psig) is used to define the pressure load case. This pressure is applied to all interior surfaces of the head and nozzle. The end-cap loading on the end of the nozzle is applied as a pressure load. The end-cap pressure is computed below: Pcap = 7tri2 p/t(r -r,) QAE17 REV 8/96 4-DSC-354

SCE No. M-DSC-354, Rev. NGEPTECH. ENGINEERING SERVICES. INC. SHEET 39 OF Made by: Date: Client: Calculation No.: AES-C-3213-1 / SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 0(.-2(- t1/ AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 1 _0 1 I1-2 1_36 of 66 Pap = 7c(0.307 2 )(2485)/7(0.525 2 -0.3072) = 1291psi This pressure is applied to the nozzle end elements. Case 2 - Axial Force (F.) A unit load of 1000 lbs is applied to the nozzle end in the axial direction. This load is axisymmetric, and the FEM loading condition determined from Eq. 4-2 is given below: 2 Fy= FA/ 7r = 1000/27r Fy = 159.15 Ibs/rad This load is divided among the four nodes on the nozzle end in proportion to the element areas as follows: End nodes (Nodes 282 and 285): Fy /6 = 26.53 lbs/rad Middle nodes (Nodes 283 and 284): FF /3 = 53.05 lbs/rad Case 3 - Lateral Force (FJ) A unit load of 1000 lbs is applied to the nozzle end in the lateral direction. This load is asymmetric and of the form: Fx = (FL/n)cosO QAE17 REV 8196 4-DSC-354

SCE No. M-DSC-354, Rev. MAPTECHI SHEET __ OF ENGINEERtNt SIEfWICES, INC. Made by: Date Client: Calculation No.: AES-C-3213-1 eec- SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level Lt...S 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 37 of 66 The magnitude of the loading function is: FL = 1000/nt = 318.31lbs This force distribution is divided among the four nodes on the nozzle end in proportion to the element areas, as follows: End nodes (Nodes 282 and 285): F. /6 = 53.05 lbs Middle nodes (Nodes 283 and 284): F,, /3 = 106.10 lbs The lateral force FL is defined as the vector magnitude of the horizontal and vertical force components and is assumed to act in the direction that gives the worst combination of stress. Case 4 - Bending Moment (M_) A unit bending moment of 1000 in-lbs is applied to the nozzle by a distribution of axial forces defined as: Fy = (Mb/itr)cos0 where r is the mean nozzle radius. This loading is asymmetric and the magnitude of the loading function is: MB/ntr 1000/i(0.416) = 765.17lbs QAE17 REV 8196 I-DSC-354

SCE No. M-DSC-354, Rev.

                                                                                                                             ~1 SAPTECHIi                                                                                     SHEET 40 OF ENGINEERING SERVICES. INC.

Made by: Date: * , Client: Calculation No.: AES-C-3213-1 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level ,Z2L- Le//fa AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 38 of 66 This force distribution is divided among the four nodes on the nozzle end in proportion to the element areas, as follows: End nodes (Nodes 282 and 285): Fy/6 = 127.53 lbs Middle nodes (Nodes 283 and 284): Fy /3 = 255.06 lbs The bending moment MB is defined as the vector magnitude of horizontal and vertical moments and is assumed to act in a plane that gives the worst combination of stress. Case 5 - Torsion (M_) A unit torsional moment of 1000 in-lbs is applied to the nozzle end by a uniform distribution of tangential forces from Eq. 4-5: F7 = MT/ 2 7rr = 1000/2rt(0.416) F, = 382.58 lbs/rad This force is applied to the four end nodes in proportion to the element areas, as follows: End nodes (Nodes 282 and 285): F1/6 = 63.76 lbs/rad Middle nodes (Nodes 283 and 284): F. /3 = 127.53 lbs/rad Case 6- Isothermal Condition (THER1) A uniform temperature of 653°F is applied to the model. This thermal stress analysis was performed to establish the stress developed due to dissimilar materials. A reference temperature of 70'F was assumed for the stress calculations. QAE17 REV 8196 94-DSC-354

MM*TiC SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET /L1 OF Mae?: Date- Client: Calculation No.: AES-C-3213-1 Date C/fSCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level ("6 £.-ý"// e AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 39 of 66 Case 7 - Thermal Ramp Loading (THER2) A unit ramp loading of +200*F/Hr is applied to the fluid temperature in contact with the inside surfaces of the nozzle and head (see Figure 5-2). A heat transfer coefficient of 500 BTU/HrFtZ°F is assumed for the head surface and the nozzle/penetration inner surfaces. A fluid temperature ramp load from 453 OF to 653 °F was assumed for the transient. At the start of the transient, the model was assumed isothermal at 453TF. A reference temperature of 653°F was assumed for the stress calculations. The results scaled from this case will be combined with Case 6 to give total thermal stress, as appropriate. Case 8 - Cooldown with Thermal Stratification (THER3) The cooldown transient with thermal stratification effects is represented by a trilinear ramp loading. A ramp loading from 653*F to 405'F in 74.4 minutes, followed by a ramp loading to 185°F in 30 minutes, followed by a ramp loading to 70°F in 34.5 minutes is applied as the fluid temperature (see Figure 5-3). A 653°F isothermal condition was assumed at the beginning of the transient. A reference temperature of 70'F was assumed for the stress calculation. Case 9 - Thermal Step Change (THER4) A unit step change of +20°F is applied to the fluid temperature in contact with the inside surfaces. The same thermal convection boundary conditions were assumed here as with Case 7 (see Figure 5-4). A fluid temperature step change from 653OF to 673 0 F was assumed. A 653"F isothermal condition was assumed at the beginning of the transient. A reference temperature of 653 'F was assumed for the stress calculations. The results scaled from this case will be combined with Case 6 to give total thermal stress, as appropriate. Case 10 - Loss of Flow Transient (THER5) The multi-ramp transient of-40'F followed by -20 *F,followed again by +60'F change in reactor coolant system temperature is applied as the fluid temperature (see Figure 5-5). The same thermal convection boundary conditions were assumed here as with Case 7. A fluid temperature change from 653 OF to 613'F in 50s, followed by linear temperature drop to 593 OF in 550s, followed by a linear increase in temperature to 653 OF in 1400s was QAE17 REV 8/96 M-DSC-354

APTECH SCE No. M-DSC-354, Rev. _ ENGINEERGSERVCES. IC. SHEET ý-2 OF Made by: Date: Client: Calculation No.: AES-C-3213-1 )e41__ _ /___-/ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level &L... tlq f8 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 40 of 66 assumed. A 653°F isothermal condition was assumed at the beginning of the transient. A reference temperature of 70'F was assumed for the stress calculation. 8.4 Analysis Results 8.4.1 Unit Load Results The time at which the maximum stress intensities occur in the thermal transient analyses was determined by first computing the AT across the nozzle/weld thickness as a function of time. These results are shown in Figures 8-2 through 8-5. The time where AT was a maximum was used to select the temperature solution for processing stress results. For ramp loading (Cases 7, 8 and 10), the maximum AT occurs at the end of the ramp. For thestep change loading (Case 9), the maximum AT occurs early in the transient (within the first minute). The temperature distributions within these times were used to define the stress solution for the unit load cases. The stress results for the unit load cases are summarized in Appendix A. For each case, the six component stresses at each of the four critical sections are provided. The membrane and bending stress components across each section are computed by COSMOSIM for all symmetric load cases. This computation is provided under the ASME Code Evaluation option in the COSMOS/M program. For the asymmetric loadings, the membrane and bending stress components are conservatively determined by simple linearization using ID and OD stress values. A plot of the stress intensities for each unit case is given in Figures 8-6 through 8-15. The maximum stress intensities occur at one of the four locations depending on the loading condition. These results are used in the code evaluation described in Section 8.5. QAE17 REV 8196 4-DSC-354

SCE No. M-DSC-354, Rev. SAPTECH ENGINEERiSIG SERVICES. INC. SHEET 43 OF Made b: Date: / Client: Calculation No.: AES-C-3213-1 Da Ie SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 6e'L.- t I-/C g AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 41 of 66 8.4.2 Load Combination Factors The total stresses are computed from the unit load cases by multiplying the unit load nodal stress results by a factor equal to the ratio of actual load to unit load. These stresses are then summed together to establish the stresses for each load combination defined in Section 8.1. Tabulation of the load multiplying factors is provided below. P FA FL I M, MT THR ITHER2II}IE 3 71 TIE4 IBER5 Design PD + DW+OBE 1.0 0.035 0.046 0.336 0.120 0.0 0.0 0.0 0.0 0.0 Normal P + DW + OBE + THER 1.0 0.035 0.046 0.336 0.120 1.0 .1.0 0.0 0.0 0.0 Normal P + DW + OBE + THER 1.0 0.035 0.046 0.336 0.120 0.0 0.0 1.0 0.0 0.0 Upset P + DW + OBE + THER 1.0 0.035 0.046 0.336 0.120 1.0 0.0 0.0 +/-1.0 0.0 Upset P + DW +OBE +THER 1.0 0.035 0.046 0.336 0.120 0.0 0.0 0.0 0.0 1.0 Faulted PD + DW + DBE 1.0 0.045 0.092 0.629 0.240 0.0 0.0 0.0 0.0 0.0 Test P + DW 1.25 0.025 0.0 0.060 0.0 0.0 0.0 0.0 0.0 0.0 QAE17 REV 8196 4-DSC-354

SCE No. M-DSC-354, Rev. HHAPTECHI NGINEERIN3 SERVICES. INC. SHEET 444 OF Made by: Date: Client: Calculation No.: AES-C-3213-1 _313o 9 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e62-- a /, e

                                                                                              *o      AES 97103213-10 Nozzle Evaluation - SONGS, Units 2 and 3         Revision No.:       Document Control No.: Sheet No.:

1 1-2 42 of 66 8.5 Code Evaluation The design requirements of NB-3200 are used to assess the stress allowables and design acceptance for all load combinations considered in Section 4. The results from the stress analysis (Appendix A) are scaled according to Section 8.4.2 for each critical nozzle location and compared with the code allowable stress limits. The stress allowable limits are provided below from the original.design code (Ref. 6): Primary Membrane Membrane + Bending Primary + Secondary Plant Condition PM PL PL + Pb PL + Pb + Q Design 1.0S"' 1.5S, 1.5S._ --- Normal and upset ..--- --- 3.0 Sm Faulted 2.4Sm 3.6Sm 3.6S-0.9Sy 1 . 3 5 Sy --- Test --- where PM is the general primary membrane stress intensity, PL is the local primary membrane stress intensity (including discontinuities), Pb is the primary bending stress, and Q is secondary stress (thermal stresses). Peak stresses are excluded from static stress evaluations, but are considered in the fatigue evaluation. From the standpoint of nozzle design (NB-3217 and NB-3227.5 of Ref. 6) the Pm stresses for the nozzle section within the limits of reinforcement (Sections 2, 3, 4) are determined from pressure plus mechanical loads (see Table NB-3217-1). This loading condition is conservatively used for regions outside these limits (Section 1). Also, the nozzle is conservatively evaluated under the primary bending stress requirements (PL + Pb) per NB-3220. This conservatively treats the nozzle discontinuity stresses as Pb stresses and addresses any concern of gross over-stressing of the welded attachment. A spreadsheet analysis is used to combine stresses with the appropriate scaling factors. These results are given in Appendix B. Superposition is used to combine individual component stresses and membrane and bending stresses. The comparisons of computed stress intensities with code allowable stress limits are summarized below. QAE17 REV 8196 4-DSC-354

SCE No. M-DSC-354, Rev.

        -APTECH1 ENGINEERING SERVICES. INC.                                                                          SHEET        457  OF Made by:          Date      ,           Clicnt:

Calculation No.: AES-C-3213-1 3  ? SCE Checked by: Date- Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (C"L 3 170o/q8 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Rcvision No.: Document Control No.: Sheet No.: 1 1-2 43 of 66

1. For the design loading combinations (from Appendix B, Page B-2):

Design Condition (PD + DW + OBE) Primarv Stress Intensities (ksi) Nozzle Allowable Allowable Section PM 1.0S. Ratio PL + Pb 1.5S,, Ratio 1 4.80 23.3 0.206 6.70 34.95 0.192 2 9.59 23.3 0.412 12.83 34.95 0.367 3 14.52 23.3 0.623 24.41 34.95 0.698 4 14.10 23.3 0.605 23.08 34.95 0.660 Note: Design condition stresses are higher than some normal/upset stresses because thermal stresses act to reduce pressure stresses in the nozzle attachment weld region.

2. For normal and upset loading combinations considering heatup/cooldown thermal conditions (maximum values from Pages B-3 and B4):

Normal and Upset Condition (P + DW + OBE + THER) Primary + Secondary Stress Intensities (ksi) Nozzle Allowable Section PL + Pb + Q 3.0S,, Ratio 1 6.73 69.9 0.096 2 6.06 69.9 0.087 3 3.97 69.9 0.057 4 4.22 69.9 0.060 QAE17 REV 8196 I-DSC-354

SCE No. M-DSC-354, Rev. WAPTECHI ENGINEERING6 SERVICES. INC. SHEET L'6 OF Made by: DaeClient: SCE Made by/ Calculation No.: AES-C-3213-1 Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level L t/ /q2 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 44 of 66

3. For normal and upset loading combinations considering cooldown with thermal stratification transient (from Page B-5):

Normal and Upset Condition (P + DW + OBE + THER) Primary + Secondary Stress Intensities (ksi) Nozzle Allowable Section PL + Pb + Q 3.OSm Ratio 1 6.78 69.9 0.097 2 11.81 69.9 0.169 3 19.45 69.9 0.278 4 18.42 69.9 0.264

4. For normal and upset loading combinations considering plant load/unload and step change transients (maximum values from Pages B-6 and B-7):

Normal and Upset Condition (P + DW + OBE + THER) Primary + Secondary Stress Intensities (ksi) Nozzle Allowable Section PL + Pb + Q 3.OSn Ratio 1 7.24 69.9 0.104 2 6.82 69.9 0.098 3 5.01 69.9 0.072 4 4.26 69.9 0.061 QAE17 REV 8/96 I-DSC-354

SCE No. M-DSC-354, Rev. / MAPTECHI SHEET --7 OF ENGINEERING SERVICES. INC. Calculation No.: AES-C-3213-1 M*M* Date: /- 1 o/__8 __entSCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (C62(.. 3,/o/q8 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 1 1-2 45 of 66

5. For normal and upset loading combinations considering reactor trip for loss of flow transient (maximum values from Pages B-8 and B-9):

Normal and Upset Condition (P + DW + OBE + THER) Primary + Secondary Stress Intensities (ksi) Nozzle Allowable Section PL + Pb + Q 3.0S,, Ratio 1 7.20 69.9 0.103 2 7.44 69.9 0.106 3 6.08 69.9 0.087 4 4.92 69.9 0.070

6. For faulted load combination under design basis earthquake (from Page B-10):

Faulted Condition (P. + DW + DBE) Primary Stress Intensities (ksi) Nozzle Allowable Allowable Section PM 2.4S, Ratio PL + Pb 3.6S,, Ratio 1 6.36 55.92 0.114 7.19 83.88 0.086 2 9.72 55.92 0.174 12.93 83.88 0.154 3 14.51 55.92 0.259 24.21 83.88 0.289 4 14.01 55.92 0.25 1 22.85 83.88 0.272 QAE17 REV 8/96 I-DSC-354

SCE No. M-DSC-354, Rev. ARPTECH _ ENGINEERING SERVICES. WO. SHEET ___ OF Calculation No.: AES-C-3213-1 D 3 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Levcl 6'e- "-2//L/9 AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 1 1-2 46 of 66

7. For test load combinations under hydrotest conditions (from Page B-11):

Test Condition (P + DW) Primary Stress Intensities (ksi) Nozzle Allowable Allowable Section PM 0.9sy Ratio PL + Pb 1.35SY Ratio 1 5.50 24.84 0.221 8.23 37.26 0.221 2 11.92 24.84 0.480 15.95 37.26 0.428 3 18.18 24.84 0.732 30.74 37.26 0.825 4 17.73 24.84 0.714 29.12 37.26 0.782 Note: For test conditions, SY is conservatively assumed as 27.6 ksi. 8.6 Fatigue Evaluation The requirements of NB-3222.4(d) pertaining to fatigue exemption rules are evaluated. The original nozzle design was exempt from fatigue. Following the same code analysis procedure, the analysis for cyclic operation for the replacement nozzle design is not required if the following six conditions are satisfied. In performing the calculations, the properties from Section 5.3 are used as follows: J Nozzle Head E, (psi) 28.88 x 106 25.22 x 106 ai, (inlin/°F) 8.54 x 10"6 8.55 x 10-' S,,, (ksi) 23.3 26.7 where a, is the instantaneous coefficient of thermal expansion. QAE17 REV 8/96 ~I-DSC-354

SCE No. M-DSC-354, Rev. SAPTECHI ENGINEERING SERVICES. INC. SHEET 4-q OF Made by: Date: Client: Calculation No.: AES-C-3213-1 576' SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 1L°. I y -l0 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 47 of 66

1. Atmospheric-To-Operating Pressure Cycle (NB-3222.4(d) 1)

Cycles from atmospheric-to-operating are 500 heatup/cooldown and 200 primary leak test: n = 500+200 = 700cycles Number of cycles corresponding to 3 Sm: Sa = 3Sm = 69.9 ksi From Ref. 6, Figure 1-9.2, the allowable cycles for S. = 69.9 ksi is 5,000 cycles. Therefore, the condition is satisfied since 700 cycles < allowable = 5,000 cycles.

2. Normal Operation Pressure Fluctuation (NB-3222.4(d) 2)

The significant pressure fluctuations are those greater than PDSa/3 Sm: PD Sa APSIG G= 3SM where S. is equal to 26.0 ksi at 106 cycles from Figure 1-9.2 of Ref. 6. APsIG = 2485 (26.0)/3 (23.3) = 924 psi QAE17 REV 8196 4I-DSC-354

SCE No. M-DSC-354, Rev. SIAPTECH ENGINEERING SERVICES. INC. SHEET 5-0 OF Made by. Date: , Client: Calculation No.: AES-C-3213-1 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e(... L/r 1/ AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 48 of 66 The maximum pressure fluctuation occurs during the combined transients of reactor trip and loss of load/flow. From Figure 3 of Ref. 1, Pmx = 2550 psia and PmIN = 1700 psia. AP = PMAX - PNUN = (2550 - 1700) = 850 psi Since AP = 850 psi < APsIG = 924 psi, no significant pressure fluctuations occur and the condition is satisfied.

3. Temperature Difference - Startup and Shutdown (NB-3222.4(d) 3)

The allowable temperature difference between two adjacent points must be less than S/2Eai. The number of startup/shutdown cycles including primary leak tests is 700. For 700 cycles, Sa = 125,000 psi from Figure 1-9.2 (Ref. 6) and AT = 125,000/2(28.88x 106 )(8.54x 10- 6 ) = 253 0 F The maximum temperature difference during startup/shutdown conditions never exceeds AT = 253 °F in the nozzle assembly, as indicated by Figures 8-2 and 8-3. Therefore, the condition of no significant temperature difference is satisfied.

4. Temperature Difference - Normal Operation (NB-3222.4(d) 4) 1 = = = =

Significant temperature difference fluctuations between any two adjacent points are those greater than Sat2 Ei, where S, is the allowable alternating stress at 106 cycles, from Figure 1-9.2 (Ref. 6). Sa = 26.0 ksi at 106 cycles ATsIG = 26,000/2(28.88 x106 ) (8.54 x 10-6) = 530 F QAE17 REV 8196 A-DSC-354

SCE No. M-DSC-354, Rev. SAPTVCHr ENGINEERING SERVICES. INC. SHEET 5_ OF Made b~ Date://, Client: Calculation No.: AES-C-3213-1 X L __________ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (22 L IJ q /*g AES 97103213-10 Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 49 of 66 The maximum temperature differences during operation occur during reactor trips. From Figure 8-5, the maximum AT is 130 F. Since AT = 13'F < ATsrG = 53 0 F, there are no significant temperature fluctuations and the condition is satisfied.

5. Temperature Difference - Dissimilar Materials (NB-3222.4(d) 5)

Significant temperature difference fluctuations experienced by the nozzle assembly during normal service are those greater than SA/2 (ENctN - EHaH), where Sa is defined as the minimum allowable stress range at 106 cycles, in Figure 1-9.1 of Ref. 6. Sa = (EH/E)Sa Sa = 11,800(25.22x10 6/30x106 ) = 9,920 psi ATsIG = 9,920/2[(28.88)(8.54)-(25.22)(8.55)1 = 1600F Maximum AT for the design transients is -60°F for reactor trips (see Figure 5-5). Therefore, AT range is equal to 60°F < ATsIG = 160'F. There are no significant temperature fluctuation differences.

6. Mechanical Loads (NB-3222.4(d) 6)

The significant mechanical load fluctuations are those loads acting on the nozzle excluding pressures that produce alternating stresses exceeding Sa, where Sa is the allowable stress amplitude at 106 cycles. The calculated range of mechanical loads must not result in stresses exceeding Sa from Figure 1-9.2 (Ref. 6) for the total number of cycles of "significant" mechanical loads. QAE17 REV 8196 -DSC-354

I SCE No. M-DSC-354, Rev. W+APTZQCH ENGME'R3NG SERVICES. WNC. SHEET 5a2. OF Made by: Date: Client: Calculation No.: AES-C-3213-1 _j 111e1# _9 SCE Pr__ Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e&62 L/. I -i/4 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 50 of 66 For the nozzle, S. = 26.0 ksi at 106 cycles from Figure 1-9.2. The applied loads from piping reaction forces are given in Table 5-2. At the nozzle-fillet location, the axial surface stress range is conservatively given by: Ac = 2Kt M/Z where K, is the stress concentration factor for a fillet weld, M is the applied moment, and Z is the section modulus. The value of K, is taken from piping design or peak stress (bending stress term in Eq. 11 under NB-3653.2 of Ref. 6) where: Kt = C 2 K 2

                                                          = (1.5)(2.0)           = 3.0 The OBE seismic loads are assumed.

2 M = [M2+M2+M211

                                                    = [1202 + 4202 +3602]112               =    566in-lbs 4 (r. - ri         (7r/4) (0.525 4 - 0.307 4)
                                                                                           = 0.1004 in 3 0.525 Therefore, Acy =      2(3)(566)/0.1004       =     33,830psi The calculated stress range exceeds 26,000 psi, which indicates that mechanical loads caused by OBE are considered "significant" mechanical load fluctuations.

QAE17 REV 8196 4-DSC-354

SCE No. M-DSC-354, Rev. RAPTECH ENGINEERING SERVICES. INC. SHEET 5"3 OF Madqy Date: li c Client: Calculation No.: AES-C-3213-1 1_6_ Date IM/IT SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level /- /./,- t -e AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 51 of 66 The number of cycles for OBE loading is 200 (Paragraph 4.6.8 in Ref. 1). For the assumed 40 cycles for each seismic event, the total number of cycles is: N = (200)(40) = 8,000Cycles At 8,000 cycles, Sa = 64,000 psi from Figure 1-9.2. The calculated stress range is 33,830 psi < S. = 64,000 psi. Therefore, all significant mechanical load fluctuations satisfy the requirements of NB-3222.4(d)(6). QAE17 REV 8196 4-DSC-354

SCE No. M-DSC-354, Rev. ENINR S ECH.I ENGINEERING SERVICES. INC,. SHEET ___ OF Made by: Date: Client: Calculation No.: AES-C-3213-1 ///"- I / SC Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e?.L (p- /qq AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 52 of 66

                                           /P       = PC U 6 =0 L.

P =PD Figure 8 Plot of the FEM Mesh and Boundary Conditions. QAEI7 REV 8196 I-DSC-354

I SCE No. M-DSC-354, Rev. I NNENAPTECIN ENGINEERING SERVICES.* INC. SHEET 5-5 OF Mad b., Date:, / Client: Calculation No.: AES-C-3213-1  ; _____/0_____ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e- 2(_. I /1

• q/ AES 97103213-10 Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.:

0 1-2 53 of 66 10 r--- 9

                                <,       8 L--

a, 7

0) 6 (D

W 5 G-) (D 4 L-0~ 3 a, 2 1

                              -5C3-:-    0 0       10 20 30 40 50 60                               70        80 Transient Time, t (min]

Figure 8 Temperature Versus Time Results for Ramp Loading (Case 7). QAE17 REV 8196 A4-DSC-354

SCE No. M-DSC-354, Rev. _ NGERGAPTECH.I ENGINEERING SERVICES. INC. SHEET 5 6 OF Made by- Da*te: /_Client: Calculation No.: A.ES-C-3213-1 Me by:I Checked by: Date: SCE Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level -ea2 (.. i/q/qt AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 54 of 66 FL- 4 2 0

                                  -2 17-1 -4
                                  -6
                                  -8 0- -10
                                 -12 1-,
                                 -14
                          -5
                                 -16 0        20    40      60            80          100        120         140 Tronsient Time, t [min)

Figure 8 Temperature vs. Time for Cooldown with Stratification Transient (Case 8). QAE17 REV 8196 I-DSC-354

SCE No. M-DSC-354, Rev. _ PAPTECHIO ENGINEERING SERVICES. INC. SHEET 5"7 OF Calculation No.: AES-C-3213-1 9 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level Co b. t//,-'q 'j AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 55 of 66 Li-10 9 8 7 6 L4J 5 (D 4 3 2 F-0.D 1 n 0 10 20 30 40 50 60 70 80 Transient Time, t (sec] Figure 8 Temperature Versus Time Results for Step Change Loading (Case 9). QAE17 REV 8196 -DSC-354

SCE No. M-DSC-354, Rev. EIEAPTECHIC ENIGINEERINGI SERVICES. INC. SHEET 5' OF Made by: Date:,/ 1 let Calculation No.: AES-C-3213-1 _ _ Dae:___,_____ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level o(n,-(..&8 I t4 q AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 56 of 66 6 4 2 CD 0 IL W)

                                  -2 W)
                                  -4
                                  -6 0

L_

                                  -8
                                -10 F-
                        -D
                               -12 a2     -14 0 250 500 750 1000 1250 1500 1750 2000 2250 2500 Transient Time, t [sec]

Figure 8 Temperature Versus Time Results for Loss of Flow (Case 10). Q.AE17 REV 8196 4-DSC-354

H+APTECHJ SCE No. M-DSC-354, Rev. / ENGINEERING SERVICES. INC. SHFFT 59 *OF Made b:~ Date: Client: Calculation No.: AES-C-3213-1 _____ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level al6 U- r-t_ AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Cbntrol No.: Sheet No.: 0 1-2 57 of 66 L3" STRESS Lc-I

                                               /

4 Figure 8 Stress Intensities for Design Pressure (Case 1). QAE17 REV 8196 M-DSC-3 54

SAPTECHI SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 6,0 OF Mid by Date- Client: Calculation No.: AES-C-3213-1 SCE--. sc_ Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level Cac(-. //, q , AES 97103213.1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 58 of 66 Figure 8 Stress Intensities for Unit Axial Force (Case 2). QAE17 REV 8196 A4-DSC-354

RUAPTECHI SCE No. M-DSC-354, Rev. ENGINEERIUNG SERVICES. INC. SHEET G I OF Calulaio No.: by: Date:/ Client: Calculation No.: AES-C-3213-1 ____ /1/0 _8 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level r"ý_ (.,./5' AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 59 of 66 S5- , LIn STRESS Lc-I I nt a Tic MY7 ___.8tE+GS4 2 I .27E+66)4 6 36E1+693 3 I Figure 8 Stress Intensities for Unit Lateral Force (Case 3). QAE17 REV 8196 4-DSC-354

I SAPTECH0 SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 62- OF Made by: Date: Client: Calculation No.: AES-C-3213-1 I- - / /_________SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 6r2 L. V/ AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 60 of 66 Figure 8 Stress Intensities for Unit Bending Moment (Case 4). QAE17 REV 8196 M-DSC-354

RAPTECH SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 63 OF Made b: Date:,C Client: Calculation No.: AES-C-3213-1 /6C./(4/ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level C6a,(_.. p// 4/ ABS 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 _ -2 61 of 66 I0 7 ,. / LIn STRESS Lc=I I nt oma

                                                                                                     '5.32E1.093
                                                                                            /0   1      8.84E+1193 I,'                                                    7. O.E+0 MZ
                                                                                                    =115.8E619 1=2.95+0
                                           ~.
                                                                          /I                         W982.0069G
                                          /

Figure 8 Stress Intensities for Unit Torsion (Case 5). QAE17 REV 8196 I-DSC-354

ARPTECH SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. RHFFT fl/.t"F Made by: Date: Client: Calculation No.: AES-C-3213-1 _ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e27_ (- _/_!!1,5 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 62 of 66 Figure 8 Stress Intensities for 653`F Isothermal Condition (Case 6). QAE17 REV 8196 vI-DSC-354

fAPTECHI ff ENGINEERIN3 SERVIES. INC. SCE No. M-DSC-354, Rev. _ SHEET 65 OF Made bv: Date: Client: Calculation No.: AES-C-3213-1 le?___ f_/________SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level r"a(-- t I/ ý/ AES 97103213-10 Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 63 of 66 Figure 8 Stress Intensities for +200°F Temperature Ramp Transient (Case 7). QAE17 REV 8/96 M-DSC-354

SýAPTECHI° SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET 66ý OF Made by- Date: Client: Calculation No.: AES-C-3213-1 A&6e.- SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level ezzL t ,7, AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 64 of 66 I LIP STRESS Lc-I 10 . 4E.M64 t

                                                                                                 -      .12EE..M&4 a .39E+063
                                                   /4                                                2   BQEI+0 3 IE       AEi1 I-.

10

                                                                                                          ,,3 L

I' I

                                     /               2.                          2.

Figure 8 Stress Intensities for Cooldown with Stratification Transient (Case 8). QAE17 REV 8196 4-DSC-354

SMAPTECHI SCE No. M-DSC-354, Rev. / ENGINEERING SERVICES. INC. SHEET _7 OF Calculation No.: AES-C-3213-1 / SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (._ t/ .ýý g AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 65 of 66 Figure 8 Stress Intensities for +20'F Temperature Step Change Transient (Case 9). QAE17 REV 8/96 4-DSC-354

IAPTECH SCE No. M-DSC-354, Rev. I ENGINEERING SERVICES. INC. SHEET ____,-OF' Calculation No.: AES-C-3213-1 MdcaS /Ce - "- Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (QCL..- t/ (Zfg' AES 97103213-lQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 66 of 66 Z/ L.iu STRESS Lc-I 3.*1SE-619 4

                                                                                        /0   -M        .G-0 SL .31E09 L.59E+004 WL .27E.884
                                                                              '3               iED Wa IS.E-003 37E910 I1-                            ,3~~,
                                           /                                      /

Figure 8 Stress Intensities for Temperature Loss of Flow Transient at t = 50s (Case 10). QAE17 REV 8196 I-DSC-3 54

SCE No. M-DSC-354, Rev. HAPTECH ENGINEERING SERVICES. INC. SHEET A_-_I OF Calculation No.: AES-C-3213-1 Ma Daa SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level -t q/'( AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 A-1 of A-12 Appendix A

SUMMARY

OF STRESSES FOR UNIT LOAD CASES QAE17 REV 8196

-DSC-354

SCE No. M-DSC-354, Rev. E RNPTECSI ENGINEERING S::ERVICES. INC. SHEET A OF Calculation No.: AES-C-3213-1 MAd Da1e: A SCE Checked by: Date- Project No.:

Title:

- Pressurizer Bottom Head Instrumentation Level (4't/(... .t/q_ AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 A-2 of A-12 INPUT DATA - UNIT STRESS SOLUTIONS COORDINATE x Y s SIGX SIGY SIGZ SIGXY SIGXZ SIGYZ LOAD CASE SECT NODE (in) (in) (in) (psi) (psi) (psi) (psi) (psi) (psi) P 1 258 0.3070 56.080 0.000 -1729 1580 5273 0 0 0 2500 psia 259 0.3797 56.080 0.073 -1247 1239 3656 0 0 0 260 0.4523 56.080 0.145 -482 1264 2973 0 0 0 261 0.5250 56.080 0.218 -199 1197 2467 0 0 0 PM - 1 1 -898 1297 3500 0 0 0 PB 1 258 -852 141 13241 0 0 0 1 261 852 -141 -1324 0 0 0 2 178 0.3070 52.934 0.000 -1241 1490 12072 -770 01 0 179 0.3797 52.934 0.073 -500 523 8856 -1166 0 0 180 0.4523 52.934 0.145 473 870 7461 -1501 01 0 181 0.5250 52.934 0.218 987 1921 6718 -1629 0 0 PM -51 1033 8570 -1289 0 0 PB 178 _ -1195 -284 2556 447 0 0 181 1195 284 -2556 -447 0 0 3 162 0.3070 52.6231 0.000 481 -11124 15918 -486 0 0 167 0.3797 52.701 0.106 589 -4346 13557 -2315 0 0 1 172 0.4523 52.779 0.213 1355 499 11083 -2755 0 0 1 177 0.5250 52.856 0.319 1666 2266 8538 -2179 0 0 315 0.5863 52.871 0.373 1644 1967 7294 -1786 0 0 PM - 1645 -1663 11840 -2137 0 0 PB 162 -936 -6683 4268 600 0 0 315 936 6683 -4268 .600 0 0 4 158 0.3070 52.546 0.000 288 -10097 14179 1197 0 0 163 0.3797 52.623 0.106 2769 -5821 14328 -1023 01 0 168 0.4523 52.701 0.213 2838 345 13017 -2905 0 0 173 0.5250 52.779 0.319 3071 2260 10454 -2608 0 0

               ,.                            312     0.5872   52.801    0.379       3474       2249      9139    -2427           0         0 314     0.6476   52.808    0.430       5097       2105      8693    -2385           0         0 PM                                                3928      -1277     12630    -1379           0         0 PB         158                                   -1987      -6717      2809     1585           0         0 314                                    1987       6717     -2809    -1585           0         0 QAE17 REV 8196 H-DSC-354

I SCE No. M-DSC-354, Rev. E A)RI E C N SHEETA-3 OF ENGINEERING SERVICES. INC. I QAE17 REV 8196 M-DSC-354

SCE No. M-DSC-354, Rev. ENRPTEC.I SERVICES. INC. ENGINEE.RING3 SHEET ,4-4 OF Calculation No.: AES-C-3213-1 //tSCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (WC- I//,.( A's AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 A-4 of A-12 INPUT DATA - UNIT STRESS SOLUTIONS COORDINATE I X Y s SIGX SIGY SIGZ I SIGXY SIGXZ SIGYZ LOAD CASE SECT NODE (in) (in) (in) (psi) (psi) (psi) (psi)- (psi) (psi) FL 1 258 0.3070 56.080 0.000 537 -10535 2081 181 0 0 1000 lbs 259 0.3797 56.080 0.073 36 -13301 29 237 0 0 260 0.4523 56.080 0.145 18 -15866 -7 213 0 0 261 0.5250 56.080 0.218 -485 -18629 -188 133 0 0 PM 26 -14582 o10157 0 0 PB 258 5111 4047 198 24 0 0 261 _ -5111 -4047 -198 -24 0 0 2 178 0.3070 52.934 0.000 790 -6891 -7064 932 01 0 179 0.3797 52.934 0.073 -5514 -23323 -12069 2231 0, 0 180 0.4523 52.934 0.145 -84911 -36T71 -15841 6407 01 0 181 0.5250 52.934 0.218 -21457 -64171 -26255 13319 01 0 PM - -10333 -35531 -16659 7126 0 0 PB 178 11124 28640 9596 -6194 0 0 181 -11124 -28640 -9596 6194 0 0 3 162 0.3070 52.623 0.0001 -982 -13890 -3561 -1089 0 0 167 0.3797 52.701 0.106 -924 -13420 -4793 -828 0 0 172 0.4523 52.779 0.213 -3076 -22558 -8985 2631 0 _ 0 1 177 0.5250 52.856 0.319 -8130 -3853 -15465 11901 0 _0 315 0.5853 52.871 0.373 -20692 -18581 -13689 17380 0 0 PM -.- 10837 -16235 -8625 8145 0 0 PB 162 9855 2346 5064 -9234 0 0 315 -9855 -2346 -5064 9234 0 0 4 158 0.3070 52.546 0.000 -13 -13602 -178 -237 0 0 163 0.3797 52.623 0.106 169 -10649 -673 -768 0. 0 168 0.4523 52.701 0.213 -1269 -14653 -4380 1960 0 0 173 0.5250 52.779 0.319 -3880 -22586 -8371 7465 '0 0 312 0.5872 52.801 0.379 -6348 -14774 -7037 14080 0 0 314 0.6476 52.808 0.430 -16303 -16404 -11350 11890 0 0 PM 1 -8158 -15003 -5764 5826 0 0 PB 158 _I 8145 1401 5586 -6064 0 0 314 1 -8145 -1401 -5556 6064 0 0 QAE17 REV 8196 9-DSC-354

SCE No. M-DSC-354, Rev. RJSPTECH.I ENGINEERING3 SERVICES. INC. SHEET A-5 OF Mnde by: Date: Client: Calculation No.: AES-C-3213-1 _______ ________ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level t... tL,1,g AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 A-5 of A-12 INPUT DATA - UNIT STRESS SOLUTIONS COORDINATE X Y s SIGX SIGY SIGZ SIGXY SIGXZ SIGYZ LOAD CASE SECT NODE (in) (in) (in) (psi) (psi) (psi) (psi) (psi) (psi) MB 1 258 0.3070 56.080 0.000 -290 5708 -111 -1 0 0 1000 In(bs 259 0.3797 56.080 0.073 -11 7202 1 -1 0 0 260 0.4523 56.080 0.145 -12 8575 -12 -1 0 0 261 0.5250 56.080 0.218 269 10074 112 -1 0 0 PM - -10 7891 0 -1 0 0 PB 258 -279 -2183 -112 0 0 0 261 279 2183 112 0 0 0 2 178 0.3070 52.934 0.000 -142J 1777 1378 -129 01 0 179 0.3797 52.934 0.073 10451 4864 2314 -361 01 0 180 0.4523 52.934 0.145 16001 7388 3019 -1165 01 0 181 0.5250 52.934 0.218 40661 12506 50271 -2507 0 0 1 1 PM 19621 7142 3203 -1318 0 0 PB 178 -21041 -5365 -1825 1189 0 0 181 2104 5365 1825 -1189 0 0 3 162 0.3070 52.623 0.000 225 3023 722 216 0 0 167 0.3797 52.701 0.106 159 2796 903 182 0 0 172 0.4523 52.779 0.213 539 4484 1705 -460 0 0 177 0.5250 52.856 0.319 1515 7496 2979 -2230 0 0 315 0.5863 52.871 0.373 3810 3456 2609 -3253 01 0 PM - 2017 3239 1666 -1519 0 0 PB 162 -1792 -217 -944 1735 0 0 315 1 1792 217 944 -1735 0 0 4 158 0.3070 52.546 0.000 10 2894 11 36 0 0 163 0.3797 52.623 0.106 -70 2213 64 156 0 0 168 0.4523 52.701 0.213 185 2903 788 -353 0 0 173 0.5250 52.779 0.319 672 4379 1575 -1391 0 0 312 0.5872 52.801 0.379 1076 2753 1298 -2631 0 0 314 0.6476 52.808 0.430 2866 2979 2101 -2165 0 0 PM 1438 2937 1056 -1065 0 0 PB 158 -1428 -42 -1045 1100 0 0 314 1428 42 1045 -1100 0 0

                                                                                  -----              Imp"-

QAE17 REV 8196 A-DSC-354

SCE No. M-DSC-354, Rev. SEnGPTECHI ENGINEERING SERVICES, INC. SHEET___ OF Made by: Date: Client: Calculation No.: AES-C-3213-1 Ie . // SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level ea L P' 5 ABS 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 A-6 of A-12 INPUT DATA - UNIT STRESS SOLUTIONS COORDINATE X Y s SIGX SIGY SIGZ SIGXY SIGXZ SIGYZ LOAD CASE SECT NODE Jn) (in) (in) (psi) (psi) (psi) (psi) (psi) (psi) MT 1 258 0.3070 56.080 0.000 0 0 0 0 2 3278 1000 in-lbs 259 0.3797 56.080 0.073 0 0 0 0 2 3627 260 0.4523 56.080 0.145 0 0 0 0 2 4324 261 0.5250 56.080 0.218 0 0 0 0 1 4672 PM 1 0 0 0 0 22 3975 PB 258 01 0 0 0 1 -697 261 0 0 0 0 - - 697 2 178 0.3070 52.934 0.000 0 0 0 0 -200 2649 179 0.3797 52.934 0.073 0_ 0 0 0 -360 2988 1801 0.4523 52.934 0.145 01 0 0 0 -816 3926 181 0.5250 52.934 0.218 0 0 0 0 -1556 3960 PM 0 0 0 0 -878 3305 PB 178 0 0 0 0 678 -656 181 0 0 0 0 -678 656 3 162 0.3070 52.623 0.000 0 0 0 01 0 -147 633 167 0.3797 5Z701 0.106 0 0 0 0 -389 1116 1 172 0.4523 52.779 0.213 0 0 0 0 -904 1859 177 0.5250 52.856 0.319 0 0 01 0 -1715 2711 315 0.5863 52.871 0.373 0 0 0 0 .2031 2265 PM - 0 0 0 0 -1089 1449 PB 162 0 0 o 0 942 -816 315 0 0 0 0 -942 816 4 158 0.3070 52.546 0.000 0 0 0 0 -111_ 329 163 0.3797 52-623 0.106 0 0 0 0 -285 649 168 0.4523 52.701 0.213 0 0 0 0 -694 1233 I 173 0.5250 52.779 0.319 0 0, 0 0 -1161 1755 312 0.5872 52.801 0.379 0 0 0 0 -1705 1976 314 0.6476 52.808 0.430 0 0 0 0 -1609 1513 PM 0 0 0 0 -860 921 PB 158 ________ ___ 0 0 01 0 749 -592 ___________ 314 ____ _ _ 01 0 01 0 -749 592 QAE17 REV 8/96 M-DSC-354

I M RPTECHI SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET ___-7 OF I QAEIT REV 8196 -DSC-354

I SCE No. M-DSC-354, Rev. GNEPTUCSH.C ENGINEERING SERVICES. INC. SHEET A-9 OF Made by: Date: /Client: Calculation No.: AES-C-3213-1 1_6c___________ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e6? (- // q/,0 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 A-8 of A-12 INPUT DATA - UNIT STRESS SOLUTIONS COORDINATE X Y s SIGX SIGY SIGZ SIGXY SIGXZ SIGYZ LOAD CASE SECT NODE (in) (in) (in) (psi) I (psi) (psi) (psi) (psi) (psi) THER2 1 258 0.3070 56.080 0.000 -41 -62 -611 0 0 0 Heatup 259 0.3797 56.080 0.073 -51 -9 -31 0 0 0

                  +200F/Hr                  260   0.4523  56.080  0.145           -3          171         21         0         0         0 t 3600s                   261   0.5250  56.080  0.218           -2          24          24         0         0         0 PM                                              -4           -4           0        0         0         0 PB        258                                   -1         -421       -41          0      0            0 261                                     1         42_         41         0      0            0 2        178   0.3070  52.934  0.00O          -14        -626       -323       -17          0         0 179   0.3797  52.934  0.073            7        -218        124       -30          0         0 180   0.4523  52.934  0.145           40          75        403       -65          0         0 181   0.5250  52.934  0.218         109          395        638      -143          0         0
                                . PM      -                                       32         -861       228       -59          0         0 PB        178                                  -59        -497       -468         61         0         0 181                                   59         497        468       -61          0         0 3        162   0.3070  52.623  0.000          -34        -500       -330         21         0         0 167   0.3797  52.701  0.106           38        -230        246         40         0         0 172   0.4523  52.779  0.213         109          -53        604       -38          0         0 177   0.5250  52.856  0.319         182          263        835      -152          0         0 315   0.5863  52.871  0.373         259          231        996      -241          0         0 PM                                            125          -83        511        -52         01        0 PB        162                                -175         -384       -667       153          0         0 315                                 175          384        667      -153          0         0 4        158   0.3070  52.546  0.000          -41        -471       -361          7         0         0 163   0.3797  52.623  0.106          -33        -213        209         44         0         0 168   0.4523  52.701  0.213         181         -112        669         34         0         0 173   0.5250  52.779  0.319         284           72        949      -135          0         0 1     312   0.5872  52.801  0.379         365          147       1154      -267          0         0 314   0.6476  52.808  0.430         582          245       1404      -363          0         0.

PM - 218 -82 710 -48 0 0 PB 158 -355 -288 -900 167 0 0 314 3551 288 900 -187 0 0 QAE17 REV 8196 M-DSC-354

SCE No. M-DSC-354, Rev. EGIENPTECEI ENGINEERING SERVICES, INC. SHEET 0r-q OF Made by: Date: Client: Calculation No.: AES-C-3213-1 , /0 9 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level M1*L. I /Aj/9g AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 A-9 of A-12 INPUT DATA - UNIT STRESS SOLUTIONS COORDINATE X Y s SIGX SIGY SIGZ SIGXY SIGXZ SIGYZ LOAD CASE SECT NODE (in) (in) (in) (psi) I(psi) psi) (psi) (psi) (psi) THER3 1 258 0.3070 56.080 0.000 10 136 133 0 0 0 Ther Strat 259 0.3797 56.080 0.073 10 21 6 0 0 0 t-6264s 260 0.4523 56.080 0.145 8 -37 -46 0 0 0 261 0.5250 56.080 0.218 4 -53 -54 0 0 0 PM 8 8 0 0 0 0 PB 258 3 93 91 0 0 0 261 -3 -93 -91 0 0 0 2 178 0.3070 52.934 0.000 -82 1234 -8471 199 01 0 179 0.3797 52.934 0.073 -181 542 -14431 309 0 0 180 0.4523 52.934 0.145 -281 -89 -1862 441 0 0 181 0.5250 52.934 0.218 -468 -893 -2277 604 0 0 PM - -246 208 -1622 384 0 0 PB 178_ 184 1041 698 -202 0 0 181 -184 -1041 -698 202 0 0 3 162 0.3070 52.623 0.000 -391 3074 -2137 2 0 0 167 0.3797 52.701 0.106 -587 1351 -2952 220 0 0 172 0.4523 52.779 0.213 -873 278 -3252 540 0 0 177 0.5250 52.856 0.319 -968 -801 -3258 780 0 0 315 0.5863 52.871 0.373 -1029 -855 -3421 911 0 0 PM -944 611 -3223 461 0 0 PB 162 506 1957 675 -540 01 0 315 1 -506 -1957 -675 540 0 0 4 158 0.3070 52.545 0.000 -364 2794 -1920 -239 0 0 163 0.3797 52.623 0.106 -726 1472 -3101 -14 0 0 168 0.4523 52.701 0.213 -1366 393 -3846 273 0 0 173 0.5250 52.779 0.319 -1647 -320 -4001 773 0 (_0 1 312 0.5872 52.801 0.379 -1854 -697 -4284 1175 0 )0 314 0.6476 52.808 0.430 -2805 -1138 -4895 1549 0 _0 PM - -1613 487 -3944 298 0 0 PB 158 - 1264 1733 1499 -830 0 0 314 -1264 -1733 -1499 830 0 0 _ I___ III. I___ I QAE17 REV 8/96 M-DSC-354

SCE No. M-DSC-354, Rev. ENGERNPTECHS.I ENGINEERING SE-RVICES. INC. SHEET ?q-1/0 OF A4-DSC-354

I SCE No. M-DSC-354, Rev. RIPTECH.I ENGINEERING SERVICES. INC. SHEETA-1-/ OF Made by Date Client: Calculation No.: AES-C-3213-1 8 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Leve] -o C- I/J I4/q9i AES 97103213-10 Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 A-11 of A-12 INPUT DATA - UNIT STRESS

                                                                      -~

SOLUTIONS I COORDINATE X Y s SIGX SIGY SIGZ SIGXY SIGXZ SIGYZ LOAD CASE SECT NODE (in) (in) (in) (psi) (psi) (psi) (psi) (psi) (psi) THER5 1 258 0.3070 56.080 0.000 60 853 839 0 0 0 Loss of Flow 259 0.3797 56.080 0.073 66 129 39 0 0 0 AT= -40F 260 0.4523 56.080 0.145 48 -235 , -288 01 0 0 AT= -20F 261 0.5250 56.080 0.218 24 -334 -337 0 0 0 t =50s PM 52 51 1 0 0 0 P8 258 20 5851 569 0 01 0 261 -20[ -5851 -569 0 0 0 2 178 0.3070 52.934 0.000 -4351 1017 -57331 735 0 0 179 0.3797 52.934 0.073 -696 752 -5296 11121 0 0 160 0.4523 52.934 0.145 -894 69 -5123 1422 0 0 181 0.5250 52.934 0.218 -1187 -1011 -51031 1541 0 0 PM -800 275 -5279 1224 0 0 PB 178 360 1020 -3041 -418 0 0 181 -3601 -1020 3041 418 01 O 3 162 0.3070 52.623 0.000 -1964 10306 -11442 213 0 0 167 0.3797 52.701 0.106 -2197 4277 -10893 1346 0 0 172 0.4523 52.779 0.213 -2860 680 -9531 2099 0 10 1177 0.5250 52.856 0.319 -2720 -1583 -7755 2221 0 0 315 0.5863 52.871 0.373 -2400 -1926 -7103 2070 0 _ 0 PM -3063 2090 -10020 1644 0 0 PB 162 803 5932 -2094 -1121 0 0 1 315 -803 -5932 20941 1121 0 0 4 158 0.3070 52.546 0.000 -1922 9365 -10751 -993 0 _ 0 163 0.3797 52.623 0.106 -3431 4981 -11888 347 0 0 168 0.4523 52.701 0.213 -4447 701 -11621 1535 0 0 173 0.5250 52.779 0.319 -4949 -1012 -10067 2336 0 0 312 0.5872 52.801 0.379 -5123 -1949 -9590 2999 0 0 314 0.6476 52.808 0.430 -7495 -2973 -10138 3788 0 0 PM - -5278 1534 -11600 940 0 0 PB 158 2641 5666 -467 -2119 0 0 314 1 -2641 -5666 467 2119 0f 0 QAE17 REV 8196 A-DSC-354

I SCE No. M-DSC-354, Rev. I ENGINEERING SERVICES. WC. SHEET F)tI12. OF 4-DSC-354

I E RNPTECS. SCE No. M-DSC-354, Rev. ENGINEERING SERVICES, INC. SHEET B-1 OF Made by: Date- , Client: Calculation No.: AES-C-3213-1 ,ct - _______ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level e6 L L qAES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 B-1 of B-11 Appendix B LOAD COMBINATION STRESS

SUMMARY

QAE17 REV 8196 Hi-DSC-354

SCE No. M-DSC-354, Rev. E APTSECHIN ENGINE.ERING SERVICES. INC. SHEET 1-2 OF Made by: Date: /Client: Calculation No.: AES-C-3213-1 __Dt_______ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level t10Q- !L AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 B-2 of B-11 COMBINED STRESSES DESIGN LOADING CONDITION IPDODW*OBE) THER1 THER2 THER3 TIIR4 THER5 THER5

                                                                                        -T=653F        200F/Hr         STRAT       ,T.20F      .40F.-20F    -40F,-20F LOAD CASE =              P       FA       FL       MW        MT           It0s        t,36005s       t6264s         1=8s        1=50s       1=2000s LOAD FACTOR =            1.000    0.035    0.046     0.336    0.1201        0.000          0.000.         0.000       0.000         0.000       0.000 SECTION     NODE (n)

SIGX (psi) SIGY (psi) SIGZ (psi) SIGXY (psi) SIGZX (psi) I SIGYZ (ps) S1 S2 Si S3 (psi) S INT (psi 1 258 0.000 -1801 3074 5245 8 0 393 5314 3005 -1801 7115 259 0.073 -1249 3108 3657 11 0 435 3897 2868 -1249 5146 260 0.145 -485 3477 2969 10 0 519 3801 2645 -485 4286 261 0.218 -.131 3786 2496 6 0 561 3996 2286 -131 4121 PM .900 33391 3501 7 0 477 3904 2936 -900 4803 PB 258 -923 -406 1296 1 0 -84 1300 -410 .923 2222 261 923 4061 -1296 -1 01 84 923 410 -1300 Z222 PM+PB 256 -1822 29337 4796 8 0 393 4876 2853 -1822 6698 261 23 37451 2205 6 0 561 3928 2023 23 3905 2 178 0.000 -1248 1800 12241 -774 -24 31 8 12251 1976 -1433 13684 179 0.07.3 -393 1127 9108 -1192 -43 359 91251 1765 -1049 10174 180 0.145 635 1716 7778 -1611 -98 471 78221 2836 -528 8350 181 0.218 1390 3259 7240 -1885 .187 475 7328 4341 219 7108 PL 146 1850 8912 -1416 -105 397 8938 2626 -656 9594 P8 178 .1400 .796 2380 573 81 -79 2384 -451 -1748 4132 181 1400 796 .2380 .573 -81 79 1748 451 -238-4 4132 PL+PB 178 -1254 10551 11292 .- 43 -24 318 11302 1320 -15301 12832 lei 1545 26461 6532 -1989 -187 475 6632 4061 29 6603 3 162 0.000 513 -10727 16010 .464 -18 76 16010 532 .10746 26756 167 0.106 604 -4000 13657 -2296 -47 134 13658 1552 -4950 18608 172 0.213 1401 1006 11265 -2799 -108 223 11273 4002 -1603 12876 177 0.319 1816 3065 8857 -2401 -206 325 8894 4884 -40 8934 315 0.373 2001 2308 7567 -2114 -244 272 7607 4235 35 7572 PL - 1833 -1289 12023 -2284 -131 174 12028 3034 -2495 14523 PB 162 -1095 -6664 4176 772 113 -98 4179 -992 -6771 10950 315 1095 6664 .4176 -772 -113 98 6771 992 -4179 10950 PL+PB 162 738 -7953 16199 -1512 -18 76 16199 993 -8209 24408

                                  '315             2928      5375     7847    -3056           .244             272          8059        7231           859        7200 4             158     0.000      290   -9730     14180      1198             -13            39        14180           432       .9871       24052
                                  '163    0.106    2757    -5549     14329    -1008              -34            78        14330         2878        -5670       200M0 168     0.213     2847      674    13097    -2943              -83           148        131001        4895        -1378        14477 173     0.319    3128     2731     10618    .2748           -139            211         106311        5673           174      10457 312     0.379    3560     2522      9270    -2686           -205             237          9298        5750           305        8993 314     0.430    5332     2376      8896    -2588           -193             182          8929        6803           873        8055 PL                          4044      -957   12733     -1480           -103             111        1 2 73 5      4447         -1363      14098 PB         158             .2102     "6674     2707      1689,             90           .71          2709       -1547        -7231         9940 314               2102     6674    -2707    -1689              -90             71         7231         15471       -2709        9940 PLtPB          158               1942   -7631    15440        209            -13             39        15440         1947        -7636       23076 314               6145    5717    10026     -3168           -193             182        10097         9036          2756        73.41 i            I- I -i -                                       i                            I                           -                      I QAE17 REV 8196

-DSC-354

I I SCE No. M-DSC-354, Rev. R SAPTE C. ENGtNEERINCI SERVICES. INC. SHEET _-__ OF Calculation No.: AES-C-3213-1 7E Cl9SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (.(...- .. f /q L1 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 B-3 of B-11 COMBINED STRESSES NORMAL& UPSET CONDITION (P4OW+OBE+THER) NORMAL HEATUPICOOLDOWN THERI THER2 THER3 THER4 THIERS THER5 T-653F 200F/Hr STRAT AT=20F -40F,-20F -40F,-20F LOAD CASE '= P FA FIL M5 MT I=0s. 1=3600,3 t=62649 =s t =50s 1=5S t20009 LOAD FACTOR 1.000 0.035 0.046 0.336 0.120 1.000 1.000 0.000 0.000 0.000 0.000

                                        "&       Srx       SIGY     SIGZ     SIGXY        SIGZX            SIGYZ            Si        S2             93        S NT SECTION     NODE         n)     (poL       (psL    (psi) ... (psi)         (ps)1 (psi)-                   (psi)     (psi)          (psi)       (psi) 1             258   0.000     -1806       3013    5184           8      -        0          393          5253      2944          -1806        7059 259   0.073     -1254       3099    3654         11                0          435          3893      2860          -1254       5147 260   0.145        -489     3494    2990         10                0          519          3819      2665             -489     4308 1       261   0218         -133     3510    2520           6               0          5611         4020      2311             -133     4153 PM        -903                          3335    3501           7                                       3902      2934            .904      4806 PB          258                -924     -448    1254           1    -          01          .84         1258       -453           -924      Z183 261         1       924      448   .1254          -1               01            84          924       453         -1258       2183 PM+PB           2258            .'1828      2887    4755           8               0_         393          4834      2807          -1828B      6662 261                  21     3784    2246           6               0          561          3966      2063               21     3946 2              178  0.000     -1836        493    4026         34             -241          318          4054        465         .1837       5891 179  0.073     -1226       1240    3279         12             -431          3591         3340       1179         -1226       4567 180  0.145        -303     2168    3193     .164               .98           471          3382      1990       -316           3698 181  0.218         327     3499    3387     -547             -1871           475          4000      2981              232     3768 PL                            -720     1561    3429     -175              .105           397          3528      1775             -733      4262 PB           178            -1179      -1513      262      284               81            -79           269    -1017i         -1682        1951 181              1179      1513     -262    -284               -81              79        162       10171           -269       19511 PL+PB          178             .1899        348    3691       110          .- 24             318          3721        323        -1905        5626 111                459     3374    3167      -459            -187            475          3824      2792              3841    3443 3          162    0.000     -1882     -1'171    1166     -201               -181             76        1169     -1121          .1935       3104 167   0.106     -1924         83    1644     .691               -47           134          1659        283        -2139        3798 172   0.213     -1723       1783    2050     -522             -108            223          2210      1700         .1800        4011 177   0.319       -899      2183    2404     .278             -206            325          2668      1954            -933      3601 315   0.373         -98      764    2229     -403             -244            272          2319        840           -264      2583 PL        -                 -1444        811    1824     -570             -131            174          1859        904         -1582       3451 P-          162               .639    -1377      .461    .125               113             .98         -385      -688         -1404        1019 315                 639     1377      481      125            -113               98        1434        688             385      1019 PL+PB           162             -2083       .565    1363     -695               -18              76        1366       -299         -2353       3719 315               .805      2188    2284     -445             .244            272          2579      1971             -882      3461 4             1581  0.000     -2057     -1247        59        67             -13              39           60    -1243          -2063        2123 163  0.106     .1332        .649    1107     -544               -3.4             78        1111       -352         -1633       2744 168  0.213     -1899        1314    1651    -1144               .83           148          1832      1498          -2264       4097 173   0.319     -1797       1977    1773     -454             -139            211          2163       1645         -1854        4017 312  0.379      -1439        758    1461         49           -205            237          1545        691         -1456        3000 314  0.430     -1883        .442    1018      894             -193             182         1043         -21        -2330        3373 PL                         -1508         520      832    -555             -103            111            906       590         -1652       2558 Ps          158                  27   -1359     -557     -272                90             -71           94      -569         -1414        1508 314                 -27     1359      557     272               .90              71        1414        569             -94      1508 PL'PB           158            -1481        -840      276    -827               -13              39          279      -276         -2047       2326 314            -1535        1879    1389     -283            -193             182          1970      1332         -1569        3539 I NOTE: PM, PLt, PBS PM+PB AND PL÷PB CONTAINS SECONDARY STRESS 0             Q                          1                       1                        1 QAE17 REV 8/96 I-DSC-354

SCE No. M-DSC-354, Rev. ENGINEER~ING SERVICES. INC. SHEET OF-OF QAE17 REV 8196 I-DSC-3 54

I SCE No. M-DSC-354, Rev. EGIEIGSPTECHEC ENGINE ERING SERVICES. INC. SHEET 13 -5 OF Made by: Date // Client: Calculation No.: AES-C-3213-1 /2 . _________ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 1(4L(. t/A Y .,o AES 97103213-lQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 B-5 of B-11 COMBINED STRESSES NORMAL & UPSET CONDITION (P÷DW+OBE+THER) COOLDOWN WITH STRATIFICATION THERI THER2 THER3 THER4 THERS THERS T=653F 200F/Hr STRAT AT=20F -40F,-20F -40F,-20F LOAD CASE - P FA FL M;B MT t-0s t1360Os t-6264s t-8s I=sc3 t-2000s LOAD FACTOR = 1.000 0.035 0.046 0.336 0.120 0.000 0.000 1.000 0.000 0.000 O.000 _ _ S'Gx SIGY SiGZ SIGXY SIGZX SIGYZ SI S2 S3 S INT SECTION NODE I) (psi) (ps) (ps) (psi) (psi) (psi) (psi) (psi) (psi) (psi) 1 258 0.000 -1792 32101 5378 8 0 393 54471 3141 -17921 7239 259 0.073 o1238 3129 3664 11 0 435 3907 2885 -1238 5145 260 0.145 -475 3440 2923 10 0 519 3761 2602 -478 4239 261 0.218 .127 3733 2442 61 0 561 39421 2232 .127 4070 PM -.891 3347 3501 7 0 477 3907 2941 -891 4799 PB 258 -919 -313 1386 1 0 -84 1390 -317 -919 2310 261 919 313 -1386 .1 01 84 919 317 -1390 2310 PM.PE 258 -1811 3034 4887 8 0o 393 4967 2954 -1811 6778 261 1 28 3660 2115 6 0 561 3842 1933 28 3814 2 178 0.000 -1330 3035 11394 -575 -24 318 11406 3097 -1404 12811 179 0.073 -574 1668 7665 .883 -43 359 7687 1952 -881 8568 10 0.145 354 1627 5916 -1170 -98 4711 5977 2266 -346 6322 181 0.218 922 2365 4963 -1280 .187 4751 5092 2985 172 4920 PL "'-100 2058 72901 -1032 -105 397 7324 2438 -515 7839 PB 178 -1216 245 3079 370 81 -79! 3082 333 -1306 4388 181 1216 -245 -3079 -370 -81 791 1306 -333 -3082 4388 PL+PB 178 -1316 2303 10368 -662 -.24 318 10381 2408 -1433 11814 181 1115 1813 4211 -1403 -187 475 4379 2747 14 4366 3 162 0.000 122 -7652 13873 -462 .18 76 13873 149 -7680 21553 167 0.106 17 -2649 10705 -2075 -47 134 10707 1149 -3783 14490 172 0.213 528 1284 8013 -2259 .108 223 8025 3184 -1385 9410 177 0.319 848 2264 5600 -1621 .206 325 5663 3261 -212 5875 315 0.373 973 1454 4146 -1204 -244 272 42211 2366 -141 4235 PL 889 -678 8800 -1823 -131 174 8807 2084 -1879 10686 PB 162 -519 .4707 4851 232 113 -98 4854 .578 -4721 9576 315 589 4707 -4851 -232 .113 98 4721 678 -4854 9576 PL+PB 162 300 -5385 13651 -1591 -18 76 13651 715 -5801 194S2 315 1479 4029 3949 -2055 -244 272 5269 3855 334 4935 4 158 0.000 -74 -6936 12260 959 -13 39 12260 57 -7067 19327 163 0.106 2031 -4078 11229 -1022 -34 78 11229 2197 -4244 15474 168 0213 1481 1066 9251 -2670 -83 148 9256 3947 -1405 10661 173 0.319 1482 2411 6617 -1976 -139 211 6641 3952 .83 6724 312 0.379 1707 1825 4986 -1512 -205 237 5042 3223 253 4789 314 0.430 2527 1238 4002 -1039 -193 182 4071 3037 659 3413 PL - 2431 -470 8789 -1182 -103 111 8792 2848 .892 9684 PB 158 -838 -4941 4206 858 90 -71 4208 -667 -5114 9323 314 838 4941 -4206 -858 -90 71 5114 667 .4208 9323 PL+P8 158 1593 -5412 12995 -324 -13 39 12995 1608 -5427 18422 314 3268 4471 120414583 .193 182 6044 4537" 1742 4302 NOTE: PM. PL, PB. PM+PB AND PL4PB CONTAINS SECONDARY STRESS 0 ] QAE17 REV 8196 I-DSC-3 54

SCE No. M-DSC-354, Rev. ENNPTECHC 6 _ OF__ ENGINEERING SERVICES. INC. SHEET 1 Made,,ýy: Date: Client; Calculation No.: AES-C-3213-1 / // 9'S SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (( tq' AES 97103213-Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 B-6 of B-11 COMBINED STRESSES NORMAL & UPSET CONDITION (P+DW÷OBE+THER) STEP CHANGE CONDITION _ _THERI THER2 THER3 THER4 THER5 THER5 T=653F 20OF/Hr STRAT' AT=20F -40F..20F -40F.-20F LOAD CASE - P FA FL MB MT t=Os I23600s t=6264s 1=8s 1=50s 1=2000s LOAD'FACTOR- 1.000 0.035 0.046 0.336 0.120 1.000 0.000 0..000 1.000 0.000 0.000 S SIGX SIGY SIGZ SIGXY SIGZX SIGYZ 1 - S2 S3 5 INT SECTION NODE o (psi (psi) (psi) (psi) (p ( ( (psi (pti) (b 1 258 0.000 -1867 2155 4340 8 0 393 4409 2086 -1867 6275 259 0.073 -1320 2961 3607 11 0 435 3826 2142 -1320 5145 260 0.145 -538 3733 3284 9 0 519 4074 2943 -538 4611 261 0.218 -158 4155 2868 6, 0 5 61 4355 2658 -158 4523 PM - -956 3283 3500 7 4 477 3881 2902 -956 4837 PB 258 -944 -1044 675 11 0 -84 679 -944 -1048 1727 261 944 1044 -675 -1 0 84 1048 944 -679 1727 PMt.PB 258 -1901 2239 4175 8 0 393 4252 2163 -1901 6153 261 .- 12 4327 2825 6 0 561 4513 2639 -12 4526 2 178 0.000 -1911 -1321 2963 90 -24 318 2995 -159 -1916 4911 I 179 0.073 -1321 1154 2835 92 -43 359 2909 1085 -1325 4234 180 0.145 -383 2335 3008 -77 .98 471 3255 2093 -387 3642 181 0,218 ,246 3716 3229 -476 -187 475 4073 2941 177 3896 PL -804 1820 3016 -98 -105 397 3140 1702 -810 3950 PB 178 -1182 -1926 -178 277 81 -79 -169 " -1093 -2023 1854 181 '."1,1 1182 1926 178 -277 -81 79 2023 1093 169 1854 PL+PB 178 -1986 -106 2838 179 -24 318 2872 -122 -2003 4876 S 181 377 3746 3194 -375 -187 475 1 4067 2921 330 3738 3 1 62 0.000 -2053 -1359 -336 -229 -18 76 -3291 -1296 -2121 1792 157 0.106 172 22133 697 -660 .474 34 746 294 -2396 3102 172 00213 -2061 -1974 1402 -408 -13 293 2094 1325 -2104 4198 177 0.319 -1185 2271 1932 -130 -206 327 24S1 1739 -1202 3683 315 0.373 -333 6512 1680 -251 -244 272 1789 80817 -2409 2198 PL 01 -17622 282 989 -487 -131 174 21175 716 -1052 3027 P 3162 , -156 -1431 7900 -243 113

                                                                                                    -98                          -4522         4933      -1501          9049 315       0.3                    1431        91       1 243         -113            98          1501           9331         4521        1049 PL+PB         162                -2319         .549   . 89       -730           -18           76            IDS         ,.302      -2580         2685 315                -12D6        2313       1889        -245         -244         272            24,75        1760        -12391        3714 4    1       158       0000     -22G4       -15701      -1379        -71           -13           39         -1371        -1577        -2204           834 163       0       -1611086       -152        131       -582            .34          78            147        -311        -1869         2019 168       0.213    -35           152         835                      -0            714         1502           704       -42647        448 173       0,3191  -2284          2125      1067        -302         -139         211            2188         1029        -2309         4497 312       0,3791  -1927           695        673        301         -205         237              923          498       -1982'        2905 314       0.4301   -2627         -731         141     1308          A193          182               73        -103       -3314         338i PL                           -197           571      -136        -SOS         -1031         Ill             688         -152       -2072         2760 P5        158                   308      -1374        -697       -476!            90         -711           4431        -704       -1502          1945 314                 -308         1374        697        4761           -90          711          15021          704        -443         1945 PL÷P8         158                -1664         -803       -832       -981            -13          39           -159         -834       -2305         2146 314                -2280         1945        562        -30         -193          182           19691          551       -2293         4262 NOTE: PM,PL.PB. PM+PB AND PL+PB CONTAINS SECONDARY STRESS 0                                                           1            1 E17 8196 REV I-DSC-3 54

SCE No. M-DSC-354, Rev. ENGINEERINQ SERVICES. INC. SHEET B-"7 OF Madeby: Date:// Client: Calculation No.: AES-C-3213-1 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level aC4C'! AES 97103213-lQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 B-7 of B-11 COMBINED STRESSES NORMAL & UPSET CONDITION (P+DW*OBE÷THER) STEP CHANGE CONDITION THER1 THER2 THER3 THER4 THER5 THERS T=653F 200FIHr STRAT AT=20F -40F.-20F -40F.-20F P1.000 FA 0.035 FL 0.046 MB 0.336 MT 0.120 1.000 1=3600s t=Os 0.000 1=6264sC0.00 t=8s -1.000 0.000 t=2000s 1=50s 0.000 CASE LOAD FACTOR - _ 1 SIGX SIGY SIGZ SIGXY SIGZX SIGYZ S1 $2 S3 S INT

                                                    "(psi       (st       (psi)       (psi)        (psi)         (psi)         (psi)       (psi)"        (psi)I       (psi)

SECTION. NODE Vn)

                                                      -1736       3994       6149              8            0         393         62191       3925         -1736         79S5 1              258     0.000 0.073     -1177        3256      3705            11              0        435         3972        2991         -1177         5149 259                                                                                                                                   3962 0.145         -433       3221      2655            10              0        619         3529        2347           .433 260
                                                        -. 04      3417      2124              6             0        561         3626        1915            .104       3731 261      0.21B
                                                        -8431     3395       3501              7             0        477         3928        2968            -843       4771 PM
                                                        -901        232      1916              1             0         -84         1920          228          -901       2821 PB          258 901      -232     -1916             -1             a          84          901        .228        -1920         2821 261
                                                      -1744        3626      5417              8             0        393         55001       3544         -1744         7244 PM+P8            258 58     3163      1585            -6              0        561         3342         1407              58      3284 261
                                                      -1734        2370      5735            11           -24         318          5765       2341          -1734        7499 2               178     0.000 3474             -8          -43         359         35471        1690         -1145        4692 179     0.073     -1145        1762
                                                        -305       1851      2572         -119            -98         471          2811        1620           .313       3124 180     0.145 24921     2269         -331         .187           475         2920         1894             137      2783 161     0.2181        190 3971         3501        19671          -707       4208 38        . -1341        -105 PL..9..

1639 169 81 -79 1644 .80 -1091 2735 PB3 178 -1058 -107 107 -1639 -169 -81 79 1091 801 -1644 2735 lei 1058

                                                       -1757       1967       5024           35           -24          318         5057        1935         -1758         6815 PL+PB            178 359      2181       1747        -304         -187            475         2545        1442             301      2244 181
                                                       -1644           17     3327         -215           -18            76        3329            43       -1672         501 3               162     0.000
                                                      .1740          453      2099        -804            -47          134         2113          702        -2003         4116 167     0.106
                                                       -1601       1696       1491         -559         -108           223         1921        1361         -16951       3616 172     0.213 0.319        -977      1569       1207         -123         -206           325         1776         1022           .999       2775 177                                                                                                                                   1405
                                                         -379        414        787          -73        -244           272           976         274           -429 0.373        -31 906      1637         -545         -131           174         1698          972        -1504         3202    I I PL                              -1377
                                                         .373       -554      1312         -3131          113           -98        1327         -153            -789      2117 PB           162
                                                                            -1312           313         -113             98          789          153       -1327         2117
                       ..           315                   373        554
                                                       -1750         353      2949         -861            -18           76        2952          658        -2057         5009 PL+PB            162
                                                       -1004        1460        325        -235         -244           272          1553          288       -1061         2614 315
                                                       -1628           18     2218          128            -13           391       2219             27      -1837         4056 4               158     O.O00
                                                         -98S       -321      1665         -595            .34           781        1670            24      -1335         3005 163     0.106
                                                       -1805        1333      1129       -1254             -83         148          1813        1089      , -2245         4058 165     0213
                                                       -1878        1685        581        -337         -139           21 1         1759          544       -1916         3675 173     0.319
                                                                                -571        332         -205           237 '          639          .87      -1763         2402 312     0.379     .1681          528
                                                       -2303        -644       -787        1205         -193           182             -4        -763        -2966        2962 314     0.430 633        381        -508          .103          111            790         342        -1600        2390 Pt.      -      -              .1481 457      -769      1383         -441             90          -71         1398          585           -912      2310 PB          158 314                  -467         769    -1383          441            -90           71           912        -585       -1398         2310
                                                       -1024        -136      1764         -949            -13           39         1766          466      .- 1628        3393 PL+P       . 158
                                                       -1938        1401     -1002           -67     -193               182         1417         -979       -1977         3393 314       -

NOTE: PM, PL, PB, PM+PB AND PL+P8 CONTAINS SECONDARY STRESS 0 QAE17 REV 8196 I-DSC-354

SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. SHEET OFF-__ Made by. Date* Client: Calculation No.: AES-C-3213-1 leez- __11_0 __8 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level (62 (.... I q L/ AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Rcvision No.: Document Control No.: Sheet No.: 0 1-2 B-8 of B-11 COMBINED STRESSES NORMAL & UPSET CONDITION IP.DW*OBE.THER) REACTORTRIP CONDITION -LOSS OF FLOW THERI THER2 THER3 THER4 THERS THER5 T=653F 200FiHri STRAT AT=20F -40F,-20F .40F,-20F LOAD CASE = P FA FL MB MT t=0s t=3600s t=6264s t=8s t=50s t-2000s LOAD FACTOR= 1.000 0.035 0.046 0.336 0.120 0.000 0.000 0.000 0.000 1.000 0.000 S SIGX SIGY SIGZ SIGXY SIGZX SIGYZ S1 S2 S3 S tNT SECTION NODE (in) (psi) (psi) (psi) (psi) (ps1) (psi) . (psi) (psi) (psi) (psi) 1 258 0.000 .1741 3928 6084 8 0 393 6153 3858 .1741 7894 259 0.073 .1183 3237 3897 11 0 435 3959 2975 o1183 5142 260 0.145 .437 3242 2681 10 0 519 3552 2372 -437 3989 261 0.218 -. 107 3452 62158 - 0 561 3651 1949 -16D7 3768 PM .848 3390 3501 7 0 477 3926 2965 -1848 4774 PB 258 .903 179 1864 1 - 34 21868 175 -903 2771 261 1 903 -179 6 1864 -71 80 22 2031 -175 -1868 2771 PM+PB 25 1 .1750 3569 1365 -8 20 35 d81 3487 -1750 7199 261 2 3211 21637 6 0 56174 33904 1458 55 3335 2 178 0.000 -1683 2817 6508 -39 -241 318 65352 20790 -1689 8218 179 0.073 -1090 1879 3811 -80 -43 359 38771 1816 -1092 4930 180 0.145 .259 1785 2655 -189 -98 471 2870 1581 .277 3147 1 0.218 .03 2247 2136 -344. .187 475 27281 1718 1410 2587 PL - -- -55 2125 3633 -192 -1105 397t 3736 2037 -669 4405 PB 178 -1040 224. 2077 155 81 .791 20821 240 -1061 3143 181 1040 -224 -2077 -155 -81 79 10611 -240 -20821 3143 PL*PB 178 -1695. 2349 5)709 -37 -24 3181 57391 2320 -1695 7435 181 3915 1901 15*56 . 347 -187 4751 23131 12251 304, 2009 1 3 162 0.000 -1451 -421 45CS -251 -18 17634 4569 -365 -1509 6078 167 0.106 -1593 276, 2764 .950 -47 2 2773 665 -1991 4764 172 0.213 -1459 1686. J734 -70D -108 2131 2031 1539 -1609 3639. 177 0.319. -904 1482 1103 -180 -206 3251 1695 920 -934 2629 315 0.373 -399 382 464 -45 -244 2721 739 172 -463 1203 PL .1230 801 2003 -6401 -131 174 2044 947 -1417 3460 pa 162 -293 -732 2082 -3491 113 .98 2092 -110 -925 3017 315 293 732 -2082 349 -113 98 925 11V -92 3017 PL",PB I 162 -15231 691 AI85 2989512 76 4087 541 .1996 6083 315 .9381 15331 -79 .2911 .244 272 1520 -3 -1020 24 4 1581 0.0001 .16321 -3651 3429 205 -13 39 3430 -333 -16641 5094 _ 1631 0.1061 -6731 -569 2441 .661 ,34J 78II8 2444i 40 1681 0.2131 .15991 13751 14761 -1408 -83 148 1991 14211 173 0.319t -1721 1719 552 -412

                                                                                         ,              -139          211         1808 312   0.379     -1562            574      -320        313        -2051            2371          663 314   0.430    -2163            -597   -1242      1201             -193           1821            571 Pu-   -                .1234            5771    11331      .540            -103           111         1175[      -   6861 PB                                                                             90          -71 248       3369 i42       4916 3429
                                                                                                                                                                  = v.-       -

QAE17 REV 8196 I-DSC-354

I SCE No. M-DSC-354, Rev. SEIEERfNGSEPTiCHS. ENGINEERING SERVICES. INC. SHEET _-__ OF Made by: Date- Client: Calculation No.: AES-C-3213-1 Date,ý/.,/,. SCE SClent Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level t l-62(... AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.:

                                                                               "     _0                            1-2                      B-9 of B-11 COMBINED STRESSES NORMAL & UPSET CONDITION (P+DW.OBE+THER)

REACTOR TRIP CONDITION -LOSS OF FLOW THERI THER2 THER3 THER4 THERS THERS T=653F 200FI- STRAT 5T=20F 74.0F -20F -40F,-20F P FA FL MB MT t=-0 t=3600s t=6264s t=Ss t=sOa t=2000s LOAD CASE = 1.000 0.035 0.046 0.336 0.120 0.000 0.000 0.000 0.000 0.000 1.000 LOAD FACTOR = s SIGX SIGY SIGZ SIGXY SIGZX SIGYZ Si S2 S3 S INT NODE- (in) (psi) (psi) ipsi) (psi) psi) (psi) (psil (psi) SECTION 1 258 0.000 -1805 3027 5198 6 01 393 5267 2958 -1805 7072 259 0.073 -1252 3101 3655 11 01 435 3894 2862 -1252 5146 9 260 0.145 .-488 3490 2985 10 0 61 3815 2661 -488 4303 251 0.218 -132 3805 2515 6 0 561 4014 2305 -132 4147 PM .9031 3335 3501 7 0 477 3902 2934 .903 4805 PB 258 .924 -439 1264 1 0 .84 1268 .443 -924 2192 251 924 439 -1264 *1 0 64 924 443 -1268 2192 PM+PB 258 -1826 2897 4764 8 0 393 4844 2818 -1826 6870 251 21 3775 2237 6 0 561 3958 2054 21 3936 2 178 0.000 .1833 674 4107 40 .24 318 4136 646 -1834 5970 179 0.073 -1229 1304 3234 22 .43 359 3298 1240 -1230 4528 180 0.145 .3171 2147 3068 -142 .98 471 3272 1952 -327 3599 181 0.218 293 3383 3194 -502 -.187 475 3846 2815 209 3637 PL - -731 1885 3354 .155 -105 397 3459 17 9 2 -742 4201 PB 178 .1161 -1369 395 266 81 279 402 .980 -1556 1958 181 1161 1369 -395 -266 .81 79 1556 9801 -402 1958 PL+PB 178 - -1892 517 3749 111 -24 318 3780 492 -1897 5678 181 430 3255 2959 .421 -187 475 3667 2613 363 3304 3 162 0.000 -1875 -1016 1241 .207 -18 76 1244 -971 -1923 3167 167 0.106 .1939 155 1555 .702 -47 134 1572 352 .2153 3724 172 0.213 -1760 1800 1860 .508 -108 223 2102 1630 -1833 3935 177 0.319 .957 2105 2149 -230 -206 325 2480 1801 .985 3466 315 0.373 -178 693 1927 .329 -244 272 2027 712 -298 2326 PL -1486 838 1663 .552 -131 174 1717 910 .1613 3330 Ps 162 .586 -1257 -270 -172 113 -98 -212 .598 .1303 1091 315 586 1257 270 172 -113 98 1303 598 212 1091 PL+PB 162 --.2072 -419 1393 -723 -18 '76 1307 -151 .2344 3741 315 -900 2095 1933 .380 -244 272 2360 1731 -963 3323 4 158 0.000 -2048 -1102 144 64 -.13 39 146 -1099 -2052 2198 163 0.106 .1327 -581 1028 -558 -34 78 1033 .288 -1625 2658 168 0.213 .1959 1350 1438 -1152 -83 148 1790 1360. -2321 4111 173 0.319 .1889 1956 1481 -411 -139 211 2083 1401 -1936 4019 312 0.379 -1555 713 1109 133 -205 237 1226 621 '1581 2807 314 0.430 -2068 520 591 1007 -193 82 . 620 -33 -2585 3205 P1 -1580 546 1053 -540 -1031 111 1 06 6340* PBa 1581 136 -1268[ -2951 -330 90 .711 2 -3137. 314 1361 12681 295[ 330 -90 71 1345 313

                                                                                                 .13
                                                                                              -193          182 QAE17 REV 8/96 I-DSC-3 54

SCE No. M-DSC-354, Rev. / EGNNAPTECHIN ENGINEER*IN3 SERVICES. INC. SHEET _-__ OF Calculation No.: AES-C-3213-1 7 tc1/1C78SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level I-q AV9 IC- AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1-2 B-10 of B-11 COMBINED STRESSES FAULTED CONDITION (P0+DW+ODE) THERI THER2 THER3 THER4 THER5 THERS T=653F 200F/Hr STRAT AT-20P -40F.-20F .40F..2OF LOAD CASE = P FA FL Ma MT t=Os t=3600s t=6264s t=Ss 1=50s t=2000s LOAD FACTOR = 1.000 0.045 0.092 0.629 0.240 0.000 0.000 0.000 0.000 0.000 0.000 s SIGX SIGY SIGZ SIGXY SIGZX SIGYZ Si S2 S3 S INT SECTION NODE (in) I(psi) (psi') I(psi) (psi) (psi) I(Psi) (psi) I(psi) (psi) (psi) 1 258 0..00 .1861 4280 5222 16 1 787 5668 3834 -1861 7529 259 260 0.073 0.145 -1250

                                                            -4881     4624 5277            3659 2965         21 19          8019           71 10557          5137 5675           3146 2568       -1251
                                                                                                                                                                      -488,       631 61637 261    0.218            -75     5898           2520         12            019       1121           6237           2182            -751      6311 PM                              -902     4998           3501          14                       9504          54621          3037    -902              6364 P24      25                   -981      2860            1272          2            01         167           12850         2873           -981        2266 2.1                    981 5            60       -1272        6 -2        :1             167            981            873       -1265          2266 PM+PB          25B                -1883       4138           4773          16      -21              787           5304           3607      .1883           7187 261                      80    5857           2229          128      22 i        1121          6176         191100                      6096 2            178   0.000       -1252        2013         12329        -770         -481           636         12369           2146       -1425        13794 179   0.073.          7338     1491           9239    -1197           -801                 17     939            2019          -930       102445 180   0.145      10            5547           7948    -1662         .1964.           942          8124           3116          -374        8498 101   0.218          1601      39961          7516    ,2014         -373;            950          7891           4770           452        7439 PL                              249     23231          9093     ,1478        -2111              973        9202           2937          -523        F72 4, PB1       178               .1507       -1058           22B6        639   -- 163              -157          2298            -605      -19721         4270 181                 1507       1058         -2286        ,639       ,1637            157          1972             6051     -22981         4270 FL+P8         178               ,1258        1266        11379         .839         -.481          636        11420            1480        -15131       12933 181                 1756       3381           6807i   -2117,        -373             960          722B           4423           2921       69-36 3            162   0.000           534   -10474         16061         -451         ..35           152        16062              552'   -10494         26556 167   0.106;          609     -3792        13705      -2282           -93            268        13711:           1575       -.4764       18474 172   0.213         1419       1293        11357      ,2816         -217             445        11390            4142       -1462        12852 177   0.319         1890       3502           9027    .2512         .412             651          9181           5181             57       9123 315:   0.373        2174        2476           771D   -2278          -487             544          7873           4445             43       7831 PLI                           198        1077        12120     -235           -261             348        12140            32031      -2373        145"12 PB        162              -10          -6625           4130        85D        226            -196          4142          -1045:      .7826        '10904.

315 110 6625 -4130 -860 -226 196 6762 10451 -4142 10904 PL+PB 162 78 -7702 16250 -1498 -35 152 162521 1015, -79G0 24212 315 08; 5547 7989 -3217 -487 544 86111 714 89 7732 4'1 158 0.000 2931 -95021 141771 1198 -27 791 14177 437 1 631 0.1061 2746 -5386 143201 .9981 -681 156 7 14322 168 0.2131 2845 8581 131311 .2959 -167 2961 13144 14415 1-

                                                                                                         .279                                                                  10504
                                                                                                         -4                                                                      9176 8216
                                                             .A.

PL - -780 -2061 14012

                                                              =1-pa       158 _                  14I 314_                   148                                                           14                                                    9886 Pt.PB         158J_                  044                                                                                                                22847 3144                   240     58441       101251     .-32I3        -386                                                                   7613 QAE17 REV 8196 A4-DSC-354

SCE No. M-DSC-354, Rev. EERPTECEHI ENGINEERING SERVICES. INC. SHEET R-11 OF__ Made by: Date- Client: Calculation No.: AES-C-3213-1 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level ("-C.. , . AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 0 1 -2 B-11 of B-11 COMBINED STRESSES TEST CONDITION IP+DVJ) THERI THER2 THER3 THER4 THER5 THERS T=653F 200FIHr STRAT AT-20F -40F,-20F -40F,-20F LOAD CASE - P FA FL MB MT t=Os 1=3600s t6264s t-8s t=5s, _t=2000-LOAD FACTOR = 1250 0.025 0.000 0.060 0.000 0.000 0.000 0.000 0.000 0.000 0.000 _a SIGX SIGY SIGZ SIGXY SIGZX SIGYZ S$ $2 53 S INT SECTION NODE O) (s (psi) (psi) (pii)(i (pi I (psi)

• I) (psi)E . (ps.

1 258 0.000 .2178 2361 6584 0 0 o0 6584 2361 -2178 8762 259 0.073 .1559 2025 4570 0 0 01 4570 2025 -1559 6128 260 0.145 .603 2139 3716 0 0 0 3716 2139 -603 4319 261 0.218 -233 2144 3090 0 0 01 3090 2144 .233 3323 PM - -1122 2139 4375 0 0 0 437SF 2139 -1122 5498 PB 258 -1082 46 1648 0 0 0 1848 46 -1082 2730 261 1082 -46 -1648 0 0 01 1082 -46 -1648 2730 PM+PB 258 -2206 2184 6023 0 0 0 6023 2184 -2205 8228 261 40 2093 2727 0 0 0 2727 2093 40 2787 2 178 0.000 -1557 1991 15195 -9731 .. 0 0 15195 2240 -1806 17001 179 0.073 " -556 975 11230 -14851 0 0 11230 1880 -1461 12590 180 0.145 698 15701 9530 -1556 0 0 9530 3138 -870 10399 181 0.218 1495 32141 8728 -22051 0 0O 8728 4722 -12 8740 PLI 63 1757 10928 -16991 0 0 10928 2808 .988 11916 PB 178 -1627 .696 3083 638 0 0 3083 -372 -1951 5034 lei 1 1627 696 .3083 -6381 0 0 1951 372 .3083 6034 PL4PB 178 -1564 1061 14010 -1061 0 0 14010 1436 -1939 15950 1690 2453 7845 -23371 0 0 7845 4439 .296 8141 3 162 0.000 616 -13709 19950 .595 0 0 19950 640 -13733 33683 167 0.106 749 -5248 17012 -2886 0 0 170121 1912 -64111 23423 172 0.213 1731 920 13972 -3478 0 0 139721 4827 -2177 16149 177 0.319 2184 3322 10872 .2871 0 0 10872 5680 .174 11047 315 0.373 2305 2691 9293 -2452 0 9293 49B8 38 9255 PC 2183 .1861 14914 -2770 0 14914 3591 -3269 18183 PB 162 .1285 -8378 5273 864 0 0 5273 -1181 -8482 13755 315 1285 8378 .52731 .864 0 8482 1181 -5273 13755 PL-P5 162 898 -10240 20187 .1906 20187 1216 -!05571 30744 315 3468 6517 9641 -3634 0 0 9641 8934 1052 859 4 158 0.000 360 -12433 17729 1499 0 0 17729 533 -12507 30335 163 0.106 3460 -7130 17922 .1271 0 0 17922 3611 -7281 25203 168 0.213 3562 625 16330 -3660 0 0 16330 6037 -1850 '18130 173 0.319 3886 3115 13176 .3355 0 0 13176 6878 124 13053 312 0.379 4419 2997 11515 .3208 0 0 11515 6994 422 11094 314 0.430 6559 2827 11006 .3127 0 0 11006 8334 1052 9954 "PL 5002 -1403 15860 -1796 0 0 15860 5471 -18 72 b 1773a PB 158 -2576 -8404 3443 2056 0 0 3443 -1924 -9057 12500 314 2576 8404 -3443 .2056 0 0 9057 1924] -34431 12500 PL+P8 15s 2426 -9808 19303 261 0 0 19303 2431] .9813 29117 1 314 7578 70011 12417 .38S21 0, 0 12417 111152 3427[ 899 QAEI7 REV 8196 M-DSC-354

NGINEIPTSE HIN

                                    ?rwmlcm
                                     ~CCN c~cm V10-Io.

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                                                              "-I SCE No. M-DSC-354, Rev.         .L ENGINEERING SERVICES, INC.                                               oF                 SHEET         ,     OF <2-Ma    by:     Date:i,               Client:

Calculation No.: AES-C-3213-1 /76.-. SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level "1IT., 0 '/'--'

                                                                                         /f*         AES 97103213-IQ Nozzle Evaluation   -  SONGS, Units 2 and 3     Revision No.: Document Control No.: Sheet No.:

3 1-2 C-1 of C-6 Appendix C WELD PAD GEOMETRY RECONCILIATION QAE17 REV 8/96 M-DSC-354

APTEC SCE No. M-DSC-354, Rev. M c¢g C0TRv."=oW" ENGINEERING SERVICES. INC. CeCN VO3- 4C.--* PA6&* oF SHEET C- 2 OFc0-Mad*,bi: Date,-/ Client: Calculation No.: AES-C-3213-1 ______ 3,910(7 SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level * - AES 97103213-lQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 C-2 of C-6 C.1 PURPOSE AND

SUMMARY

The purpose of this Appendix is to reconcile the design of a polygon shaped weld pad with six sides to the design analysis calculation performed for a circular weld pad. The half nozzle weld repair utilizing a circular weld pad was explicitly evaluated to ASME Section III design. This repair geometry is shown in Figure C-1 (Ref. Cl). As an alternative design,the six sided polgon shaped weld pad geometry is shown in Figure C-2 (Ref. C2). Reference to the word "calculation" will mean the finite element analysis and results presented in the main body of ths document. The use of a noncircular weld pad in the repair of the bottom head level nozzle penetration will be covered under this calculation provided that the following conditions are satisfied:

1) The nozzle diameter and wall thickness are the same as defined in this calculation.

2) The ligament length (i.e., the distance from the nozzle outside surface to the top-side edge of the weld pad is not less than 5/8 inch.

3) The pad thickness is at least 7/16 inch but not exceeding not 11/16 inch.

4) The J-groove depth for the pad weld is at least 3/16 inch

5) All other dimensions, construction materials, and manner of fabrication are the same as defined in the calculation.

The technical basis and justification of this reconciliation are discussed below. C.2 GEOMETRY RECONCILIATION A comparative evaluation of the pad dimensions of the circular shape and the six-sided polygon is given in the table below. Table C-1 Comparison of Pad Dimensions Ligament J-Groove Penetration Pad Shape Length Thickness Depth Level Circular 1 3/8" 7/16" 3/16" 6-sided Polyon 1 3/8" 7/16" 3/16" Heater Sleeve Circular 5/8" 19/32" 3/16" Square 5/8" 21/32" 3/16" QAE17 REV 8196 M-DSC-354

flelmCCt'J NO0- V-i-SCE No. M-DSC-354, Rev. NRPTECHIC rc .N C-'N CON~V54ZSION: a.0 cc: N -j. Nt4 ENGINEERING SERVICES.!IC C ?PA66W OF SHEET C-'S OF C-C MadSy: Date: I , . Client: Calculation No.: AES-C-3213-1 / < "3/6/0 U SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level *1449ý.. (A Ci C- AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 C-3 of C-6 The important dimensions that define the PM, PL, P. stresses in the J-groove weld are the pad size (ligament length), thickness, and weld size (prep depth). All these dimensions are the same for the Level nozzle repair involving either the circular pad or six-sided polygon. Also listed in the above table are the analyzed pad dimensions for the heater sleeve repair modfication (Refs. C3 and C4). These geometries were individually analyzed to ASME Section III Code requirements by finite element. Although the pads ligaments were smaller than those for the Level nozzle penetration, and slightly different thicknesses overall, the calculated peak stress intensities and fatigue usage factors were not significantly different given the different pad shapes. Further discussion of the stresses is given next. C.3 STRESS COMPARISONS The calculated Code stresses for the two different pad geometries for the heater sleeve repair were not significantly different between the circular and square shapes. This is shown in the table below from Refs. C3 and C4: Table C-2 Comparison of Code Stress Ratios* for Heater Sleeve Repair Stress Circular Pad Square Pad Condition Combination/Symbol Shape Shape Design PM 0.51 0.55 PL+PB 0.80 0.82 Norma/Upset PL+PB+PE+Q 0.98 0.96 Emergency PM 0.38 0.42 PL+PD 0.61 0.62 Test PM 0.52 0.52 PL+PBE 0.85 0.87 Fatigue Usage U 0.0044 0.0042

• Ratio of stress intensity to Code Allowable stress intensity.

For the differences noted in the dimensions and given the two different shapes, the Code stresses are not significantly affected by pad shape. The above stress comparisons provides sufficient justification for applying the existing calculation to the six-sided polygon pad. A general statement of reconciliation for a general noncircular shape is formulated next. QAE17 REV 8196 M-DSC-354

preP

                                     're H h~     ccl*    0 N.-E 0-    NJIJo 4- t                       scCC.NNo. M-DSC-354, Rev.

ENGINEERING SERVICES. INC. CC N -1. -cc"tJ- 4. Pr*,G-"/1 oF SHEET Q-L OF C-9 Calculation No.: AES-C-3213-1 C0SCE

                                                                                         /&

Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level "34St-fT 9 ifo_ tcý., AES 97103213-1Q Nozzic Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 C-4 of C-6 C.4 RECONCILIATION FINDINGS AND DISCUSSION The following is a technical discussion of the findings and judgements formulated from this evaluation of pad geometries:

1) The key pad dimensions affecting the local stresses in the PZR Level nozzle attachment repair weld are the ligament length, pad thickness, and J-groove preparation size. For the detailed analysis performed for the heater sleeve repair, the ligament length can be as small as 5/8 inch without causing a significant stress deviation between the circular and square pad shapes. Ligament lengths greater than this value would be expected not to affect the local weld stress since the discontinuity created by the pad/shape configuration becomes more removed from the local weld region.

2) The pad thickness does not significantly affect the stress at the weld for the sizes analyzed.

It would be expected that as the pad thickness increases, thermal stress may become elevated due to temperature gradients across the pad wall. For thicknesses between 7/16 and 11/16 inch, this effect is judged to be negligible, when compared to the bottom head wall thickness.

3) The local stress in the weld region will be sensitive to the size of the weld throat. All the evaluations performed used a 3/16 inch 3-groove weld preparation. Therefore, this establishes the minimum weld size covered by this reconciliation.

C.4 REFERENCES C1. "Pressurizer Primary Instrument Nozzle Geometry, 1/2 Nozzle Repair - Conceptual Design PZR Bottom Level Nozzle," (October 28, 1997) (ECD-6 in Project AES 97103213-1Q). C2. "Pressurizer Instrumentation Nozzle Detail," Southern California Edison Change Notice, S023-919-30, (11/10/05) (ECD-2 in Project AES 05095929-10) C3. Attachment II to SCE M-DSC-356, Rev. 2, "Evaluation of Modified Heater Sleeves with Circular Weld Pad - SONGS Units 2 and 3," Calculation AES-C-5212-4, Rev. 1, (10/27/05), (ICD-4 in Project AES 03105212-1Q). C4. Attachment III to SCE M-DSC-356, Rev. 2, "Evaluation of Modified Heater Sleeves with Square Weld Pad - SONGS Units 2 and 3," Calculation AES-C-5212-5, Rev. 0, (10/27/05), (ICD-5 in Project AES 03105212-1Q). QAE17 REV 8196 I-DSC-354

SCE No. M-DSC-354, Rev. / ENERIPTECHI ENGINEERING SERVICES. INC. SHEET _C-5 OF Made by: Date- Client: Calculation No.: AES-C-3213-1 /2104LiL 5- SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level -- '-- cr-. C ý AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 2 1-2 C-5 of C-6 PZR LOWER LEVEL INSERT ASSY (41116 SH. 2) I'PZR BOTTOM HEAD SA-533 GR. B CL E-0.13" (MIN INCONEL WELD BUILD-UP 1.050"*t.015" O.D. X 0.614 Figure C Weld Repair Geometry - Circular Shaped Pad QAE17 REV 8196 v!-DSC-354

SCE No. M-DSC-354, Rev. I APTECH ENGINEERING SERVICES. INC. SHEET C- OF C-6 QAE17 REV 8196 M-DSC-354

SCE No. M-DSC-354, Rev. ENG WE C. I QcIc cor4veg-r-10W E.NGINEERING SERVICES. INC. iZA6 12- OF SHEET Tb-I OF DL.. Madpby: Date:,), Client: Calculation No.: AES-C-3213-1 f V1 - SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Lcvel "-".-(.., '0 Ho.-'

                                                                                    -      C4G       AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3    Revision No.:    Document Control No.: Sheet No.:

3 1-2 D-1 of D-34 Appendix D MODIFIED NOZZLE SLEEVE REPAIR RECONCILIATION QAE17 REV 8196 A-DSC-354

[ APTECHI ENGINEERING SERVICES. INC. CJCNE.IW C~e NV0-C C-P- J:,. I>~ 13 o SCE No. M-DSC-354, Rev.~L SHEETV~ OF ý>-3Lt Calculation No.: AES-C-3213-1 MSv ae~~~, Clint Checked tw: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level -1.t-r - . --fo*.j C AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-2 of D-34 D.1 INTRODUCTION The purpose of this Appendix is to reconcile the design of modified repair geometry used in instrumentation level nozzle 2LT-0110-2 in Unit 2. The modified repair is shown in Figure D-1. The original bore hole in the bottom head was enlarged and a new Alloy 690 nozzle sleeve was employed. This new sleeve had a larger outside diameter and thicker wall to accommodate the new hole penetration in order to preserve the inside dimensions for the level instrument. The new sleeve geometry is shown in Figure D-2. The as-built dimension of the counter bore hole through the weld pad and into the base metal of the bottom head is illustrated in Figure D-3. These drawings were provided in Ref. D1. Reference to the words "original calculation" will mean the finite element analysis and results presented in the main body of this document. This appendix also includes a description and results for an axisymmetric finite model that was developed to determine the effect of the modified geometry on stress intensities due to internal pressure. This is given in Section D.4. The stresses determined in the original calculation for thermal transients and mechanical loads were judged to be reasonable and appropriate to be used in this analytical reconciliation of the modified repair. QAE17 REV 8196 -DSC-354

prc~fejs1 CCH N--o N-1 SCE No. M-DSC-354, Rev. ENGPTECHE ENGINEERING SERVICES. INC. Crp.J cej-J NO-

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Cc9J~- a oF-0~1 SHEET T)-S OF D-34 Made))Y: Date: c/,, ( Client: Calculation No.: AES-C-3213-1 _/L SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom I-lead Instrumentation Level -"1TrT' - , c

                                                                                                       -t   AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3             Revision No.:   Document Control No.: Sheet No.:

3 1-2 D-3 of D-34 D.2

SUMMARY

The modified repair design was reconciled to the original calculation by evaluating the effect of the new geometry (i.e., larger bore hole and sleeve) to the allowable stress calculations. Following the original calculation, a Code reevaluation per NB-3200 of ASME Section III was performed at the two limiting locations in the nozzle J-groove weld. The two locations are Sections 3 and 4 for the ID/OD nodal locations as shown in Figure 2-1. All calculated stresses meet the ASME Code stress limits in this reevaluation, as summarized below: Allowable Stress Ratio Primary + Secondary Primary Stress Stress PM PL + Pb PL + Pb + Q Section Design 0.42 0.50 --- 3 Normal and Upset* --- --- 0.18 4 Faulted 0.17 0.21 --- 3 Test 0.50 0.59 --- 3

• Cooldown transient The computed stress intensities and allowable stress limits are presented in Section D.4.

The fatigue analysis was performed in Section 8.6 of the original calculation. This evaluation demonstrates that the nozzle is exempt from detailed fatigue analysis requirements per the exemption rules of NB-3222.4(d). This result is consistent with the original design, which was also exempt from fatigue requirements (Ref. 4). There is no significant change in the modified design that would alter the original analysis. Therefore, no further evaluation for fatigue design (i.e., transient analyses and cyclic evaluation) is required. QAE17 REV 8196 A-DSC-354

R APTECH! -t C~i0cr*_.1t'* SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. c'e- vioo- C-CztsNi- 4 PA GO F SHEET V - 4 OF t)- Y-Calculation No.: AES-C-3213-1 DSCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level '-i-r,.., - -

• AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.:

3 1-2 D-4 of D-34 D.3 ASSUMPTIONS The following assumptions are made:

1) The primary region for the assessment of Code stresses will be the two sections across the J-groove weld (Sections 2 and 3 in the original calculation). Section 3 was the limiting location for the original weld repair configuration. These two sections will be the subject of the reconciliation.

2) The dominant stresses in the J-groove weld are the result of pressure loading. This is based on the results of the original calculation. Therefore, the stresses for internal pressure were reevaluated in a finite element model consistent with the original calculation.

3) Thermal stresses from the original calculation are assumed to be representative of the modified geometry. This is justified since the thermal loads acting in the outer surface of the bottom head will not be significant for the design basis transients.

4) Fatigue exemption evaluation of the original calculation remains valid. This is justified since the overall peak stress, temperature differentials, and number of cycles are not significantly changed for the modified design.

QAE17 REV BI96 M-DSC-354

cc" CONYSIRMION SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. Ccc" No.) cc.!Njj  ? ~OF~ SHEET P-5 3 OF t-ý3 Madc,4w: Date: Client: Calculation No.: AES-C-3213-1 OC SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level '1rT_ V ýC',- &, AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 I-2 D-5 of D-34 D.4 GEOMETRY AND ANALYSIS A comparative evaluation of the nozzle and pad dimensions of the level nozzle repair is given in the table below. Table D-1 Comparison of Nozzle/Pad Dimensions The important dimensions that define the PM, PL, PD stresses in the J-groove weld are the pad thickness, nozzle size, and weld size (prep depth). The modified repair sleeve geometry is nominally stronger than the original configuration based on J-groove weld size and nozzle R/t ratio. To verify the modified design, an axisymmetric finite element model was developed by SCE (Ref. D2) in similar manner as was done for the original calculation. This model is shown in Figure D-4. The model includes the bottom head, the nozzle sleeve and J-groove weld. The major geometric features of the repair, namely, the pad, J-groove, fillet weld reinforcement, and sleeve were modeled in detail. Some modelling simplification was made in regions away from the region of interest (J-groove weld) since that will not affect the local stresses at the J-groove. The element detail local to the J-groove region is shown in Figure D-5. The boundary conditions applied to the model for internal pressure is shown in Figure D-6. The model geometry and boundary condition inputs were checked herein as part of the stress reevaluation. A contour plot of the stress intensities for a pressure of 2500 psia is given in Figure D-7. QAE17 REV 8196 I-DSC-354

1Z'rekrn CCN No- r0-1 NAPTECHIN CaCP COMVG'PslOt4f' SCE No. M-DSC-354, Rev. L. SERVICES, W*. E.NGINEERING3 C-C-N PO- cc W-j 4; &/7 oF SHEET c>-b OF .)-3 Calculation No.: AES-C-3213-1 MalZy: D 0te' CSCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level 51 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-6 of D-34 D.5 CODE STRESS EVALUATION The design requirements of NB-3200 are used to assess the stress allowables and design acceptance for all load combinations considered in Section 4 of the original calculation. The results from the stress analysis are scaled according to Section 8.4.2 for the two nozzle sections under evaluation and compared with the Code allowable stress limits. The stress allowable limits are provided below from the original design code (Ref. 6): Primary Membrane jMembrane + Bending Primary + Secondary Plant Condition PM PL PL + Pb PL + Pb + Q Design 1.0S,, 1.5S. 1.5S,, --- Normal and upset ..--- --- 3.0 S,, Faulted 2.4S,, 3.6S,,, 3.6S,, --- Test 0.9SY --- 1.35SY --- where PM is the general primary membrane stress intensity, PL is the local primary membrane stress intensity (including discontinuities), Pb is the primary bending stress, and Q is secondary stress (thermal stresses). Peak stresses are excluded from static stress evaluations, but are considered in the fatigue evaluation. The same basic evaluation was followed as used in the original calculation. The same spreadsheet analysis is used to combine stresses with the appropriate scaling factors. The only change was that the pressure stress case for the modified sleeve design was used instead of the original nozzle. Superposition is used to combine individual component stresses and membrane and bending stresses. The comparisons of computed stress intensities with Code allowable stress limits are summarized below. QAE17 REV 8196 vl-DSC-354

SCE No. M-DSC-354, Rev. NEAPTECHI ENGINEERING SERVICES, INC. Ccc-v CONVa*R-ZION"' SHEET VI-7 OF D-3'f Made by: Datei. , Client: Calculation No.: AES-C-3213-1 /"* 3/8/06 SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level "*,41-rq**f'..-&.q !66 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Rcvision No.: Document Control No.: Sheet No.: 3 1-2 D-7 of D-34

1. For the design loading combinations:

Design Condition (PD + DW + OBE) Primary Stress Intensities (ksi) Nozzle Allowable Allowable Section PM 1.0Sm Ratio PIL + Pb 1.5S,. Ratio 3 9.80 23.3 0.420 17.42 34.95 0.49g 4 9.73 23.3 0.418 J 16.38 34.95 J 0.469 Note: Design condition stresses are higher than some normal/upset stresses because thermal stresses act to reduce pressure stresses in the nozzle attachment weld region.

2. For normal and upset loading combinations considering heatup/cooldown thermal conditions:

Normal and Upset Condition (P + DW + OBE + THER) Primary + Secondary Stress Intensities (ksi) Nozzle Allowable Section PIL + Pb + Q 3.OSm Ratio 3 10.56 69.9 0.151 4 12.61 69.9 0.180 CIAE17 REV 8196 4-DSC-354

PE-H,= cA N CC. ION: SCE No. M-DSC-354, Rev. I ENGINEERING SERVICES. INC. C+/-.r N NQjv- CZ~cdW J ?pa ~ iq oF SHEET -P- " OF V 3f Made by: Date- I Client: Calculation No.: AES-C-3213-1 ___ _ --_/S_/___0_ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level -i-tf - - 0 l-"*1-- 4 AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-8 of D-34

3. For normal and upset loading combinations considering cooldown with thermal stratification transient:

Normal and Upset Condition (P + DW + OBE + THER) Primary + Secondary Stress Intensities (ksi) Nozzle Allowable Section PL + Pb + Q 3.OS, Ratio 3 12.35 69.9 0.177 4 11.81 69.9 0.169

4. For normal and upset loading combinations considering plant load/unload and step change transients:

Normal and Upset Condition (P + DW + OBE + THER) Primary + Secondary Stress Intensities (ksi) Nozzle Allowable Section PtL + Pb + Q 3.0S., Ratio 3 10.21 69.9 0.146 4 12.22 69.9 0.174 QAE17 REV 8/96 M-DSC-354

f>'UreAV C.C-N No. N-oJeRIN SCE No. M-DSC-354, Rev. - "- CCN ENGINEERING SERVICES. INC. Q,=Ni go- tL4j~c2O SHEET 1 .--c OF 1t-St Made by: Date: Client: Calculation No.: AES-C-3213-1 "__._/3i/O& SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level -3n,-"-/ V 4 - AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-9 of D-34

5. For normal and upset loading combinations considering reactor trip for loss of flow transient:

Normal and Upset Condition (P + DW + OBE + THER) Primary + Secondary Stress Intensities (ksi) Nozzle Allowable Section PL + Pb + Q 3.0S,, Ratio 3 10.01 69.9 0.143 4 11.83 69.9 0.169

6. For faulted load combination under design basis earthquake:

Faulted Condition (PD + DW + DBE) Primary Stress Intensities (ksi) Nozzle Allowable Allowable Section P, 2.4S, Ratio PL + Pb 3.6S, Ratio 3 9.68 55.92 0.173 17.23 83.88 0.205 4 9.60 55.92 0.172 16.15 83.88 0.193 QAE17 REV 8196 94-DSC-354

cctN Coltjvf~r.--loN SCE No. M-DSC-354, Rev. , ENGINEERING SERVICES. INC. Q-cN WD- cc~N N"& 2-1 OF o2 SHEETP-O OF-D-Yt Mad,~bv: Date:/P 1 /o Client: Calculation No.: AES-C-3213-1 /1641- __ SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level -Ij -T-C_ = l ?-',. , AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-10 of D-34

7. For test load combinations under hydrotest conditions:

Test Condition (P + DW) Primary Stress Intensities (ksi) Nozzle Allowable Allowable Section PM1 0.9SY Ratio PL + Pb 1.35SY Ratio 3 12.41 24.84 0.500 22.01 37.26 0.591 4 12.33 24.84 0.496 20.75 37.26 0.557 Note: For test conditions, Sy is conservatively assumed as 27.6 ksi (T=700°F). Based on the above stress evaluations, all calculated stress intensities meet the ASME Code stress limits in this reevaluation. D.6 REFERENCES D1. Repair Drawings for Modified Sleeve, Southern California Edison, (March 4, 2006) (ECD-6) D2. ANSYS Finite Element Model Input and Stress Output Files, Results transmitted electronically, Southern California Edison, (March 6, 2006) (ECD-7). QAE17 REV 8196 M-DSC-3 54

MAPTECH '&c0,F '--- ENGINEERING SERVICES. INC C.CC ~i. PC E C~CW ý. IPA6E2-Z O>F SCE No. M-DSC-354, Rev. J. SHEET P-1I OF P-3 Client: ___ SCE Proiect No.: q AES 97103213-1Q ontrol No.: Sheet No.: D-1I of D-34 QAE17 REV 8/96 M-DSC-354

SCE No. M-DSC-354, Rev. __ MAPTECES. a.o. ENGINEERING SERVICES. INC . z J CA- wo. c J- Ip C 0 2 3 F- SHEET 1-2-. OF D-3k Made by: Date: Client: Calculation No.: AES-C-3213-1 _ _ _ __/_/ C? SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level ,- f-- e- AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Shect No.: 3 1-2 D-12 of D-34 1/4", . Figure D Modified Nozzle Sleeve QAE17 REV 8196 M-DSC-354

F'~etji'.' c~ci tNo- "N-I

                                                                                                                                     -L SCE No. M-DSC-354, Rev.

NAPTECHIN CCN~ 00. ENGINEERING SERVICES. INC. C.*CRW-ISN FA-C, 2'i4 OF SHEETP-IG OF3P-3 I Made by: Date: ,/ / Client: Calculation No.: AES-C-3213-1 (/d7<.l- S_______ SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level ", f-1'c-..g4a_ , AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-13 of D-34 IV2 I1 W T1~ Figure D As-Built Bore Hole Dimensions QAE17 REV 8196 4-DSC-354

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Made by: Date: Client: Calculation No.: AES-C-3213-1 _S/_/0(0 SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level -- V 1, q5(r, AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-15 of D-34 1 ELEMENTS NozzSleeve Figure D Finite Element Model - J-Groove Region QAE17 REV 8196 4-DSC-354

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Title:

Pressurizer Bottom Head Instrumentation Level -"'J.A ( ... #- -J AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-17 of D-34 NODAL SOLUTION 0 6000 12000 18000 24000 30000 STEP=l SUB -1 TIME=1 SINT (AVG) modified PRZ lvl noz, 2500 psia, as built, 1-3/8 min lgmnt, 0.24 groove as built Figure D Stress Intensities for Design Pressure QAE17 REV 8196 M-DSC-354

Pl~r-lry"~ Cc"J No- W-( ecpN CON VOERISloW4 SCE No. M-DSC-354, Rev..J ENa1NSER)NG SERVICES. INC. ee-W Wo- rcci'-4: FAGE'2qC cF- SHEET P-iV OFL-Caclto o:Made by: Dat:e/..>p Client: Calculation No.: AES-C-3213-1 ___---- SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level "74f-r-r-  % t- - AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-18 of D-34 D.7 APPENDIX - ANSYS INPUT The ANSYS model input listing for the pressure case for the modified nozzle sleeve is given below:

           /batch
           /prep7
           /title,modified PRZ lvl noz,           2500 psia, as built,        1-3/8 min igmnt,        0.24 groove as built file    name: InlO et, I,plane42, , , 1 asme 1989 code

[ material 1 - vessel cladding & sleeve mptemp, 1,70,100,200,300,400,500 mptemp,7,600,700 material 1 - heater sleeve SB-167 ai-8.6 bl=0.154 a2=8.7 b2=0.154 a3=9.1 b3-0. 156 a4=9.6 b4-0.160 a5=10.1 b5=0.165 a6=10.6 b6=0.1716 a7-11.1 b7=0.174 a8=11.6 b8=0.179 dl=al/(1728.0*bl) d2=a2/(1728.0*b2) d3=a3/(1728.0*b3) d4=a4/(1728.0*b4) d5=a5/(1728.0*b5) d6=a6/(1728.0*b6) d7=a7/(1728.0*b7) d8=a8/(1728.0*b8) QAE17 REV 8196 4-DSC-354

APTECH Ce *eoV V.R tj :! - SCE No. M-DSC-354, Rev. J, ENGINEERING SERVICES. INC. C c.. - PA 0 o SHEET P-Vq OF 0-31f Md'C bY: DateM,7,, C~ct Calculation No.: AES-C-3213-1  ;&6e" SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level "3-I--..- - ., ýf AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-19 of D-34 el=31.0e6 e2=30.8e6 e3=30.2e6 e4=29.9e6 e5-29.5e6 e6=29.0e6 e7=28.7e6 e8=28.2e6 all=0. a12-6.90e-6 a13=7.20e-6 a14=7.40e-6 a15=7.57e-6 al6=7.70e-6 a17=7.82e-6 a18-7.94e-6 mpdata, c, 1, 1, 1.0, 1. 0, 1.0; 1. 0, 1. 0, 1.0 mpdata,c,1,7, 1.0,i.0 mpdata, kxx, 1,1, al/12., a2/12. , a3/12. , a4/12. ,aS/12., a6/12. mpdata,kxx, 1,7,a7/12.0,a8/12.0 mpdata,dens, 1,1,dl,d2,d3,d4,d5,d6 mpdata, dens, 1,7,d7,d8 mpdata, ex, 1, 1, el, e2, e3, e4, e5, e6 mpdata, ex, 1,7, e7, e8 mpdata, nuxy, 1, 1, 0.3, 0.3, 0.3, 0.3,0.3, 0.3 mpdata,nuxy, 1,7,0.3,0.3 mpdata,alpx, 1, 1,all,a12,a13,a14,a15,a16 mpdata, alpx, 1,7, a17, a18 I material 2 - prz lower head SA-533 Grade B Class 1 mptemp, 1,70,100,200,300,400,500 mptemp, 7,600,700 al=22.3 bl=0.429 a2=22.6 b2-0. 427 a3-23.4 b3=0. 420 a4=23.8 b4=0.408 a5=23.8 b5=0.389 a6=23.5 QAE17 REV 8196 M-DSC-354

APTECH ENRSECES. INC. cc'J 0,,No-cot N 3vIHo-:3

                                                            -N F*A6E"            P SCE No. M-DSC-354, Rev.

ENGINEERING SERVICES, INC. cC,. C~C tJ - J- o SHEET P-2--D OF 1D-.3 Made by: Date- Client: Calculation No.: AES-C-3213-1 ____ :V 06 SCE Checked by: Date: Proiect No.:

Title:

Premsurizer Bottom Head Instrumentation Level "t-wrT- *5"3o-4-fr AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-20 of D-34 b6=0.366 a7=2-3.0 b7=0. 342 a8=22 .3 b8=0.319 dl=al/(1728.0*bl) d2=a2/ (1728.0*b2) d3=a3/(1728.0*b3) d4=a4/(1728.0*b4) d5=a5/(1728.0*b5) d6=a6/(1728.0*b6) d7=a7/(1728.0"b7) d8=a8/(1728.0b8) el=29.5e6 e2=29.3e6 e3-28.8e6 e4=28.3e6 e5=27.7e6 e6=27.3e6 e7=26.7e6 e8=25.5e6 all=0. a12=7.06e-6 a13=7.25e-6 a14=7.43e-6 a15-7.58e-6 aI6=7.70e-6 a17=7.83e-6 a18=7.94e-6 mpdata, c,2,1,1.0,1.0,1.0,1.0,1.0,1.0 mpdata, c,2, 7,1.0,1.0 mpdata, kxx, 2, 1, al/12., a2/12., a3/12., a4/12., a5/12. a6/12. mpdata, kxx, 2,7, a7/12.0, a8/12.0 rnpdata,dens,2, 1,dl,d2,d3,d4,d5,d6 mpdata, dens, 2,7, d7, d8 rnpdata,ex,2,1,el,e2,e3,e4,e5,e6 mpdata, ex, 2,7, e7, e8 mpdata, nuxy, 2, 1,0.3, 0.3, 0.3, 0.3, 0.3, 0.3 mpdata, nuxy, 2, 7,0.3,0.3 mpdata,alpx,2, 1,all,a12,a13,a14,a15,a16 mpdata, alpx, 2,7, a17, a18 I material 3 - type 316 stainless steel QAE17 REV 8196 I-DSC-354

                                *EC        c  N    O.."I..I%                           SCE No. M-DSC-354, Rev..._

ENGINEERING SERVICES. INC. CLN NO- CC N--i j Ae6G"32- oF" SHEETSP-2-1 OF P-SLf Made by: Date: A10 Client: Calculation No.: AES-C-3213-1 ______ __ SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level -rr_ 0 t'HcL..e e AES 97103213-1 Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-21 of D-34 al=7.7 bl=0. 134 a2=7 .9 b2-0.136 a3=8 .4 b3=0. 141 a4=9.0 b4=0. 145 a5=9.5 b5=0. 151 a6=10. 0 b6=O. 156 a7=10.5 b7=0. 162 a8=11.0 b8=0.167 dl=al/(1728.0*bl) d2=a2/(1728. Okb2) d3=a3/(1728. 0*b3) d4=a4/(1728. 0*b4) d5=a5/(1728 .0*b5) d6=a6/(1728. 0*b6) d7=a7/(1728. 0*b7) d8=a8/(1728. 0*b8) e1-28.3e6 e2=28.1eG e3=27.6e6 e4=27. Oe6 e5=26.5e6 e6=25.8e6 e7-25.3e6 e8-24.8ee6 a11=0. a12=8 .54e-6 a13=8 .76e-6 a14=8 .97e-6 a15-9. 21e-6 a16=9. 42e-6 a17=9.60e-6 a18=9. 76e-6 mpdata, c,3, 1, 1.0, 1.0, 1.0,1.0,1.0, 1.0 mpdata, c, 3, 7,1.0, 1.0 mpdata,kxx,3,1,al/12.,a2/12.,a3/12.,a4/12.,a5/12.,a6/12. mpdata, kxx, 3, 7,a7/12.0,a8/12.0 mpdata,dens,3, 1,dl, d2,d3,d4,d5,d6 QAE17 REV 8/96 A-DSC-354

EINPTE CHIC Ccgc CONJVGRýIONZ SCE No. M-DSC-354, Rev. ENGINEERING SERVICES, MN. P eG33 oF SHEET V-22 OF D- 31 t Made by:_________& SCE Calculation N o.: AES-C-3213-1 Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level l4 -- t , AES 97103213-lQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-22 of D-34 mpdata,dens,3, 7,d7, d8 mpdata,ex,3,i,el,e2,e3,e4,e5,e6 mpdata, ex, 3,7, e7, e8 mpdata, nuxy, 3, 1,0.3, 0.3, 0.3,0.3, 0.3,0.3 modata, nuxy, 3, 7, 0.3, 0.3 mpdata, alpx, 3, 1,all, a12, a13, al4, al5, a16 mpdata, alpx, 3,7,a17, al8 pi=4.0*atan(i.0) eps=0.01 prl=2500.0  ! design pressure, psia

            ! --------------------- coordinate systems-------------------------

k, 100,, k, 101, , -1.0, , k, 102, 1. 0, -1. 0,, cskp, 11,1, 100, 101,102 csys,0

                 ---------------------     lower head dimensions --

rin=40.0 radius to cladding tcld=7.0/16.0 cladding thickness rcld=rin+tcld I radius to base metal tbas=3.07.0/8.0 I thickness of the base metal rout=rcld+tbas I outside radius rll=7.5 I model boundary

               --------------------- nozzle dimensions--------------------

rnsi=0.25/2.0 I inside radius rnso=0.584/2.0 I outside radius rpip-l.05/2.0 I 0.75 pipe outside radius hnzl-l.0  ! nozzle length outside weld area into base metal hnz2=l.0 I nozzle length outside weld area below pad

                ------------------ sleeve and hole dimensions----------------------

pt2=0.24 I groove depth rhl=I.072/2.0 I hole original radius rh2=1.421/2.0  ! enlarged hole hsl=l.0+5.0/16.0-pt2  ! height of sleeve inside base metal clrl=5.0/1000.0 clearance between nozzle and sleeve clr2=5.0/i000.0 clearance between nozzle and hole rsli=rnso+clrl  ! sleeve inside radius rslo=rh2-clr2  ! sleeve outside radius tslv=rslo-rsli  ! sleeve wall thickness hs2-l.6 [ sleeve height below base metal QAE17 REV 8196 M-DSC-354

SCE No. M-DSC-354, Rev. J MAPTECHI CC CON4Vr.-.nO - ENGINEERING SERVICES. INC. cc. t 4o - C),J cW - et-663 It 0oF SHEET D -23 OF D-3L Calculation No.: AES-C-3213-1 _.Z 6 Datc/VO 6 SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level -',,T-. 6e 4 , (c, AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-23 of D-34 hwl=2.55  ! butt weld below base metal pr2=prllrnsi*rnsi/(rpip*rpip-rnsi*rnsi) cap pressure

           !         ----------------------               pad size---------------------------------

gran=30.0  ! groove side angle delt=0.0725 1 pad thickness adjustment ptl=3.0/16.0 pad between head and weld pthk-pt2+ptl+delt actual thickness plig-1.0+3.0/8.0 ligament length rpdi=rout+ptl+delt pad radius to groove rpdo=rout+pthk pad outside radius

                                  --------------- weld size---------------------------------

thrt=0.19 minimum throat grl=l.0/8.0 groove width w13=0.269 fillet weld leg angl-asin (rpip/rpdo) +plig/rpdo pad edge ang2=asine(rslo/rpdi)+gr/rpdi j groove corner ang3=asin (rslo/rpdo) +w13/rpdo ang4=angl+pthk/rout

           ------------------------------                 keypoints        --    ---       ----     -   - -   ---      -

y42=sqrt (rpdi*rpdi-rslo*rslo) j groove weld k, 42,rslo,-y42, k, 58, rnsi, -y42, k, 59, rnso, -y42, k, 41, rsli, -y42, k, 29, rh2, -y42, y36=y42-hsl k, 36, rslo, -y36  ! K 36 y35=y36-tslv k, 35, rsli, -y35, k, 52, rnsi, -y 3 5, k, 53, rnso, -y35, k, 50, rnsi,-y35+hnzl, k, 51, rnso, -y35+hnzl, yl4=y36-sin(pi/4.0)/16.0 rl4-sqrt (yl44yl4+rh2*rh2) QAE17 REV 8196 A-DSC-354

MAPTECH6 FLc.NA`2t C~.V4'R.ON t SCE No. M-DSC-354, Rev. __ ENGINEERIJNG SERVICES. INC. CC0 0C C 1,j* _ZJJ-t f'A6so9 or SHEET 9-2-t2q OF (ý Calculation No.: AES-C-3213-1 ;n _ Date'// 0 CE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level - '1-j-r_. *9/-1 9* Y, ABS 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-24 of D-34 k, 14, rh2,-yl4, y13=y14- (rh2-rhl) k, 13, rhl, -yl3, x30-rpdi*sin (ang2) y30=rpdi"'cos (ang2) k, 30, x30, -y30, SK 30 y3=sqrt (rin*rin-x30*x30) y9=sqrt (rcld*rcld-x30*x30) y25=sqrt (rout*rout-x30*x30) k, 3, x30, -y3, k, 9, x30, -y9, k, 25, x30, -y25, y32=sqrt (rpdo*rpdo-rslo*rslo) +w13 k, 32, rslo, -y 3 2 , K 32 k, 60, rnsi, -y32, k, 61, rnso, -y32, k, 43, rsli, -y32, y24=sqrt (rout*rout-rh2*rh2) y45=y24+hs2 nozzle lower end y47=y45+ (rslo-rpip) y72=y24+hwl y 4 9=y72-0.25 k, 69, rnsi, -y72, k, 70, rnso,-y72, k, 71, rsli, -y72, k, 72, rpip, -y 7 2, k, 62, rnsi, -y45, k, 63, rnso,-y45, k, 44, rsli, -y45, k, 45, rslo, -y45 k, 64, rnsi,-y47, k, 65, rnso, -y 4 7 , k, 4 6, rsli, -y47, k, 47, rpip, -y47, k, 66, rnsi, -y49, k, 67, rnso, -y49, k, 48, rsli, -y49, k, 49, rpip, -y4 9, x33=rpdo*sin (aang3) y33-rpdo*cos (ang3) QAE17 REV 8/96 M-DSC-354

SAPTECHr tr OK. N- 1 SCE No. M-DSC-354, Rev.J-ENGINEERING SERVCES. Wo. . CWcp - .1- PAG39 of SHEET D-2-5 OF D-3 1 f Calculation No.: AES-C-3213-1 te .. /h SCEn Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level -74e7-,,_ .C AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Shcet No.: 3 1-2 D-25 of D-34 k, 33, x33, -y33, K 33 rtl=0.2 x68=rslo+rtl* (x33-rslo) y68=y32+rtl* (y33-y32) k, 68,x68,-y68  ! K 68 x34=rpdo*sin (angi) y34=rpdo*cos (ang1) k, 34,x34,-y34 ,  ! K 34 x26=rout*sin (ang4) y26=rout*cos (ang4) k, 26, x26, -y26, x31-=x26+ (ptl+delt) * (x34-x26)/pthk y31=y26+ (ptl+delt) *(y34-y26)/pthk k, 31, x31, -y3l, y2=sqrt (rin*rin-rh2*rh2) y8=sqrt (rc1d*rc1d-rh2*rh2) k, 24,rh2,-y 2 4 I K 24 k, 56, rnsi, -y24, k, 57, rnso, -y 2 4 , k, 39, rsli, -y24, k, 40, rslo, -y 2 4 , k, 2, rh2, -y2, k, 8, rh2, -y8, y37=0.5*(y24+y35) y 3 8=O. 5 4 (y241+y36) k, 37, rsli, -y37, k, 38, rslo, -y38, k, 54, rnsi, -y3 7 , k, 55, rnso, -y3 7 , r19=sqrt(rh2*rh2+y384y38) k, 19, rh2,-y38, yl=sqrt (rin*rin-rh1*rh1) y7=sqrt (rc1d*rc1d-rh1*rh1) k, l,rhl,-yl, k, 7, rhl,-y 7 , y15=sqrt (r14*r14-x30*x30) k, 15, x30, -y1 5 , y20=sqrt (rl 9*r19-x30*x3O) QAE17 REV B196 M-DSC-354

APTECH I MiC -- SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. CC ?4 klO* cc N - ,- FIN E- 37 oF SHEET DI-2-6 OF P-3ý Made v: Date: i/,- Client: Calculation No.: AES-C-3213-1 5SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level I"Tr/ . _* *tP, AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 TRevision No.: Document Control No.: Sheet No.: 3 1-2 D-26 of D-34 k, 20, x30,-y20, si4=sin (ang4) co4=cos (ang4) x4=rin*si4 y4-rin*co4 xl0=rcld*si4 yl0=rcld'co4 xl6=rl4*si4 y16=rl4*co4 x21=rl9"si4 y21--rl 9*co4 k,4,x4,-y4, k, 10, Xl0, -Yl0, k, 16,x16, -y16, k, 21, x21, -y21, ang5=10. 0*pi/180.0 si5=sin (ang5) co5=cos (angS) x5=rin*si5 y5=rinrco5 xll=rcld*si5 yll=rcld*co5 xl7=rl4*si5 yl7=-rl4*co5 x22=rl9"si5 y22=r19*co5 x 2 7=rout*si5 y27-rout*co5 k, 5,x5,-y5 k, 11, xll, -yll k, 17, x17,-y17 k, 22, x22, -y22 k, 27, x27, -y27 k, 6,rin,, k, 12, rcld,, k, 18, r14,, k, 23, rl9,, k, 28, rout,,

             --                        lines 1,50,51                         ! L 1           nozzle
         *rep,9,2,2                      ! L 1 -   9 QAE17 REV 8196 I-DSC-354

ENIAPTECHI c, o N ,l SCE No. M-DSC-354, Rev. SHEET *-'2.7 OF D-34 J-i ENGINEERING SERVICES. INC CC N Njo . CC N _ F'AcS.E- go F Made by: D te,, 106 SHEET.2-7.O Client:

                                                                                                                            -31f.

Calculation No.: AES-C-3213-1 166e_ A, SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level -"/-r-r ' r'(*4 q5%_ AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-27 of D-34 1,50, 52 L 10

           *rep, 8,2,2                      L 10 - 17 1,51,53                          L 18
           *rep, 8,2, 2                     L 18 - 25 1, 35,36                          L  26          sleeve
           *rep, 4,2,2                     L   26 - 29 1,43,32                          L   30 1,44,45                          L   31 4

rep, 3,2,2 L 31 - 33 1,35,37

                                        ! L 34 I                sleeve sides
          *rep, 4, 2, 2                    L   34 -  37 1,43,44                       I L   38 1,44,46                          L   39 1,46,48                          L   40 1,36,38                       ! L    41
          *rep, 3,2, 2
                                        ! L    41 -  43 1,42,32                          L   44 1,32,45                          L   45 1, 45,47                         L   46 1,47,49                          L  47 1,42,29

• L 48 1,32,68 t L 49 csys, 11 1,1,2 L 50

          *rep, 3, 6, 6                    1, 50 -   52 csys, 0 1,1,7                         1 L 53 1,7,13                            L 54 1,2,8                             L  55 1,8,14                            L  56 1,14,19                           L  57
         *rep, 3, 5, 5                     L  57 -  59 1,29, 68                          L  60 csys, 11 1,2,3                             L  61
          ,rep, 3, 6, 6                    L  61 -  63 1,19,20                           L  64
         *rep, 3, 5, 5                     L  64  - 66 csys, 0 1,68,33                           L 67 1,3,9                             L 68 1,9,15                            L 69 QAE17 REV 8196 4-DSC-354

IRI4RVEAPTSCH. F- %MCRCM3--P W -t SCE No. M-DSC-354, Rev. S ENGINEERING SERVICES. INC. CCa~.J 140_. CCt-.. i\ 37' SHEETIV- 2. OF *-.3L-Made by: Date: Client: Calculation No.: AES-C-3213-1 / -C -1/8IO0& SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level -- 0 'r--r..q o*. AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-28 of D-34 1,15,20 70

          *rep, 3, 5, 5                        70 -  72 1,30,33                             73 csys, 11 1,3,4                               74
          *rep, 3, 6, 6                       74 -  76 1,20,21                             77
          *rep, 3, 5,5                        77 -  79 1,33,34                             80 csys, 0 1,4,10                              81 1,10,16                             82 1,16,21                             83 1,21,26                             84 csys, 11 1,4,5                               85
          *rep, 3, 6, 6                       85 -  87 1,21,22                             88 1,26,27                             89 csys, 0 1,5,11                            L 90 1,11,17                           L 91 1,17,22                           L 92 1,22,27                           L 93 csys, 11 1,5,6                             L 94
          *rep, 3, 6, 6                     L 94 -  96 1,22,23                           L 97 1,27,28                            L 98 csys, 0 1,6,12                            L 99 1, 12, 18                          L 100 1,18,23                           L 101 1,23,28                           L 102 1,26,31                           L 103 1,31,34                         I L 104 1,66,69                        !1 L 105 1,67,70                           L 106 1,48,71 L 107 1,49,72                            L 108 QAE17 REV 8196 M-DSC-354

WAPTE-SC'- 1 H'u ",o0 SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC. C- .-. I's 0 - cc N - I ePik 6-'ýOc r SHEET '?-2* OFf'-34 Made~y Date: / ,Client: Calculation No.: AES-C-3213-1  ; 51/9 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level - V41'Ct-- ' i.-t q (e AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-29 of D-34 1,67,48

• L 109 1, 69, 70 L 110

          *rep, 3, 1, 1                              !L 110 -  112
           !                --------------------- line division----------------

lsel,,,,1,9 nozzle lsel,a, ,,110 lesi,all,,,2 nn0=10 isel, ,,, 26,28 lsel,a, ,,30,33 lsel,a,, ,112 lesi,all, ,,nn0 Isel,, ,,29 lesi, all,,, nnO,0.5 isel, ,,,50,52 lesi,all,,, 4 isel, ,,,61,67  ! sleeve and weld lesi,all,, , 8 nnl-20 isel, ,,,74,78 lsel, a, ,,80 lesi,all,, ,nnl,2.0 Isel,,,, 79 lesi,all,,,nnl,3.0 isel, ,,,85,89 lesi,all,, ,20,2.0 isel, ,,,94,98 lesi,all,,,80,2.5 Isel, ,,,105,108 lesi, all,,,4 isel, ,,,17,25,8 isel, a,,,40,47,7 lesi,all, ,, 4 isel, ,,,16,24,8 isel, a,,, 33,46,13 lesi,all,,, 4 QAE17 REV 8196 M-DSC-354

CcW. No t~p-- SCE No. M-DSC-354, Rev. _ _ NEAPTECHIC. 1 OF D-31+ ENGINEERING SERVICES. INC. Cc. NjJo 00- iN" J- p A6 - I'1/F c SHEETD-3 0 Ma9 by: Datc: / ,s Client: Calculation No.: AES-C-3213-1 _____ 31_ _06 SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level _1-',.--

                                                                                      - *        .            -(AES 97103213-IQ Nozzle Evaluation - SONGS, Units 2 and 3          Revision No.:      Document Control No.: Sheet No.:

3 1-2 D-30 of D-34 isel,,,,15,23,8 isel, a,,, 38, 45,7 lesi,all,, ,10,2.0 nn2=12 Isel, ,,, 14,22,8 Isel, a, , ,37 isel, a,, ,73 Isel,a, ,, 104 lesi, all, , ,nn2 isel, ,,,44,60,16 lesi,all, , ,nn2,2.0 isel, ,,, 13,21,8 isel, a, ,, 36, 43,7 Isel, a,, , 59,72, 13 Isel,a,,,103 lesi, all, ,B Isel .... 53,55,2 isel.,a, ,, 68,81,13 isel, a,, , 90, 99, 9 lesi,all,, ,2 isel, ,, ,54,56,2 Isel, a, , , 69, 82,13 isel,a,,,91,100,9 lesi,all, ,, 10 isel, ,,, 11, 19,8 isel,a, , ,34,41,7 isel, a, , ,57,70,13 Isel, a,,, 83,92,9 Isel, a, , ,101 lesi, all,, , 4 isel,, , ,12,20,8 Isel,a, , ,35,42,7 isel,a, , ,58,71,13 lsel,a,,,84,93,9 isel, a,, ,102 lesi, all,, , 8 isel .... 10, 18,.8 lesi, all,,, 6 ails QAE17 REV 8/96 M-DSC-354

SCE No. M-DSC-354, Rev. NAPTSCE IC. H -_" , -.. ENGINEERING SERVICES. INC. Cr~ g po . Cc: N - IPA 6F 4t2- oF SHEETID-3I OF.D-3'f Made by Date: /,/ Client: Calculation No.: AES-C-3213-1 _--- :5914)_2 SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level V H "- O-- AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-31 of D-34

           !       ---------------------       areas       ------------

a,50,51,53,52 A 1 nozzle

           *rep, 8,2,2,2,2                A 1 - 9 a, 66, 67,70, 69               A 10 a, 67,48,71,70                A 11 a,48,49,72,71               ! A 12 a,35,36,38,37                  A  13 sleeve
           *rep, 3,2,2,2,2               A  13 - 15 a,41,42,32,43                  A  16 a,43,32,45,44                  A  17 a,44,45,47,46                  A  18 a,46,47,49,48                  A  19 a, 42,29,68,32                 A  20 vessl head a,24,25,30,29                  A  21 a, 29, 30, 33, 68              A  22 a, 25,26,31,30                 A  23 a, 30, 31, 34,33               A  24 a,1,2,8,7                      A 25
          *rep, 5,1,1,1,1              I A 25 - 29 a,7,8,14,13                    A  30
          *rep, 5,1,1,1,1                A  30 -      34 a, 14, 15,20, 19               A  35
           *rep, 4, 1,1, 1, 1          ! A  35    -   38 a, 19, 20, 25, 24              A  39
          *rep, 4, 1,1, 1, 1           !

A 39 - 42 meshin----------------------- esiz, 1.0 mnshk, 1 type, 1 asel,,,,1,ll mat,3 ames,all asel, ,,,12,23 mat, l ames,all asel, ,,,29,41 mat,2 ames,all asel,.,,,24,28 mat, 1 QAE17 REV 8196 M-DSC-354

MA PTSCH16CC v-jo N-' SCE No. M-DSC-354, Rev. ENGINEERING SERVICES. INC cctj CcVE.It4..l-40 i>AeF4-3 oF SHEET D-3 2- OFD-3ý Made,,b: Dte , Client: Calculation No.: AES-C-3213-1 1 _________ SCE Checked by: Date: Project No.:

Title:

Pressurizer Bottom Head Instrumentation Level

• f--t'a.,4 q*T. 6 1-) AES 97103213-1Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.:

3 1-2 D-32 of D-34 ames, all alls ail

                  ------------------         internal pressure---------------

lsel,,,,l  ! nozzle isel,a,, , 10,17 lsel,a,, ,105 isel,a,,,18,25 isel,a,,, 109 lsel, a,, , 34,40 sleeve isol,a,,,26 isel,a,, , 41,43 isel,a, ,,48 Isel, a, ,,50 Isel,a,, , 52,54 isel, a,, ,57,59 isel,a,, ,61,74,13 isel, a,,, 85,94,9 nsll,,l sf,all,pres,prl alls ail isel, ,,,110,112 nsll,,l sf,all,pres,-pr2 alls

                 -------------------          displacement b.c.---------------

isel, ,,,99,102 nsll,,i d,all,uy,0. alls nlis, 470,482,12 nlis, 382, 897, 515 nlis, 382,390, 8 nlis, 882, 979, 97 nlis, 390,897,507 nlis, 493,895,402 nlis,712,716,4 nlis, 184,189,5 QAEi7 REV 8196 q-DSC-354

wTEC c -,.: - SCE No. M-DSC-354, Rev. ENGINEERING SERVICES.INC. C-, IMO- .. r-C.. M - *j .. A6" G"'et oF SHEET D-[,3 OF D-_'_" Made h.: Date:/ / Client: Calculation No.: AES-C-3213-1 _____ -. 169106 SCE Checked by: Date: Procct No.:

Title:

Pressurizer Bottom Head Instrumentation Level . - V- e-'-eC C" C AES 97103213-4Q Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-33 of D-34 tref, 70.0001 tunif, 70. 0001

           /dev, font, 1,courier,medium, r, 17,,,,,
           /dev, font, 2, courier, medium, r, 17, ,,,,
           /type, , 2
          *abbr, kpl,/pnum,       kpoi, 1
          *abbr, kp0,/pnum,       kpoi,
          *abbr, mln,/pnum,       line, 1
          *abbr, nO,/pnum,        line,
          *abbr,arl,/pnum,        area, 1
          *abbr,arO, /pnum,       area,
          *abbr,voll,/pnum,volu, 1 kabbr,volO,/pnum,volu,
          *abbr,matl,/pnum,mat, 1 kabbr,mat0,/pnum,mnat,
          *abbr, nodel,/pnum, node, 1
          *abbr,node0,/pnum, node, 0
          *abbr,psfl,/psf,pres, 1
          *abbr,psf2,/psf,pres, 2
          *abbr,psfO,/psf,pres, 0
          *abb'r,pbcl,/pbc, all, 1
          *abbr,pbc,/pbc,call,            1
          *abbr, convl,/psf,conv, 0
          *abbr, conv0,/psf, cony, 0
          *abbr,vl,/vie, ,1,0.3,1
          *abbr,v2,/vie,,-..5,.3,-1
          *abbr,vx,/vie,, 1,,
          *abbr, vy,/vie,, , 1,
          *abbr, vz,/vie, , , , 1 wsort, all save I /sho,xll
              /mcn,on fini
          /solu solve fini
          /postl set path, sectl, 2 ppath, 1,482 ppath, 2,470 prsect,,

QAE17 REV 8/96 M-DSC-354

NAPTECHI a r W c0?JVUFZ--.N-

C000 SCE No. M-DSC-354, Rev.

k iNGIEFGSRICE.I 4. C4= t 140o. r(=N I-f I 0 1 ItZ SHEET OF1 Ut-3t-r Made bv Date:,., Client: Calculation No.: AES-C-3213-1 6Qý SCE Checked by: Date: Proiect No.:

Title:

Pressurizer Bottom Head Instrumentation Level " .k r-.- * --" cS"* , AES97103213.IQ Nozzle Evaluation - SONGS, Units 2 and 3 Revision No.: Document Control No.: Sheet No.: 3 1-2 D-34 of D-34 path, sect2, 2 ppath, 1,382 ppath, 2,897 prsect,, path, sect3, 2 ppath, 1,390 ppath, 2,382 prsect,, path, sect4,2 ppath, 1,979 ppath, 2,882 prsect,, path, sect5, 2 ppath, 1,390 ppath, 2,897 prsect,, path, sect:6, 2 ppath, 1, 493 ppath,2,895 prsect,, path, sect7,2 ppath, 1,716 ppath,2,712 prsect,, path, sect8,2 ppath,1, 184 ppath, 2,189 prsect,, fini

         /exit QAE17 REV 8/96 M-DSC-354

CALCULATION SHEET E&TS DEPARTMENT ECN NOJ N-2 PRELIM. oCo NO. PAGE_4 O4_F CCN CONVERSION: Project or ECP SONGS 2 & 3 Calc No. M-DSC-354 CCN NO. CCN- 2.. Subject Pressurizer Bottom Head Instrumentation Level Nozzle Evaluation Sheet 5-4of E5-, REV ORIGINATOR DATE IRE DATE iE ORIGINATOR DATE IRE DATE Jun Gaor 4/17/06 N. Elakily 4/24/06 APPENDIX E Unit 3 Bottom Head Half-Nozzle Design Reconciliation

                                                                                                                            -  A SCE 26-426 REV. 4 12/05 [

REFERENCE:

S0123-XXN-7.151 M-DSC-354

E&TS DEPARTMENT ECN NOJ N-2 PRELIM. CCN NO. PAGE -*OF CALCULATION SHEET CCN CONVERSION: Project or ECP SONGS 2 & 3 Calc No. M-DSC-354 CCN NO. CCN - I Subject Pressurizer Bottom Head Instrumentation Level Nozzle Evaluation Sheet 6oZof CF-5 I E.1 PURPOSE The purpose of this appendix is to reconcile the design of the modified half-nozzle in Unit 3 with the half-nozzle design in the base calculation. The modified half-nozzle is shown in Figure E-1. The half-nozzle design covered in the base calculation (including Apendix D), is shown in Figure E-2. The differences between the modified half-nozzle and the original half-nozzle design are provided below.

1. The original design is a one-piece design, with the pressurizer level insert and half-nozzle combined as one piece (ref. Dwg. 41011 Sh. 5 Rev. 0). This is shown in Fig. E-2 (a).

In Fig, E-2 (b), a two-piece design was implemented to accommodate a larger hole penetration as a result of machining error. The original pressurizer level insert and a new half-nozzle with a larger OD and thicker wall were used (ref. Dwg. 41011 Sh. 6 Rev. 0).

2. The modified half-nozzle covered in this appendix as shown in Figure E-1, is similar to the two-piece half nozzle in Fig. E-2 (b) but with a standard size nozzle.

I - SCE 26-426 REV. 4 12/05 (

REFERENCE:

SO123.XXIV-7.15S M-DSC-354

E&TS DEPARTMENT ECN NOJ N-2 PRELIM. CCN NO. PAGE 6 OF _ CALCULATION SHEE CCCN CONVERSION: Project or ECP SONGS 2 & 3 Caic No. M-DSC-354 I CCN NO. CCN - 2-Subject Pressurizer Bottom Head Instrumentation Level Nozzle Evaluation Sheet -_.ofE I E.2

SUMMARY

The modified half-nozzle design was reconciled to the base calculation by evaluating the effect of the geometry to the critical stresses. The critical stresses in the half-nozzle design are the stresses in the J-Groove weld as based on the results in the base calculation. The geometry of the modified nozzle is compared with that of the original nozzle design as shown in Table E-1 below. Table E-1 Comparison of Nozzle/Pad Dimensions Nozzle Nozzle OD Nom. Wall Pad J-Groove Fillet Weld Design Thickness Thickness Depth throat size Original 1.050" nom. 0.218 7/16' min 0.188 min. 0.13" min. Fig. 2(a) (2LT-01 10-1) (design) (design) (design) 2"+1/8/-o 0.24" min. 0.19" min. _(actual) actual) (actual) Modified 1.131 "nom 0.268 Y2" +1/8/-0 0.24" min. 0.19" min. Fig. E-1 (3LT-0110-1) 0.244 V2" +1/8/-o 0.24" min. 0.19" min. 1.083" nom (3LT-0110-2) The above comparison shows that the modified design Fig. E-1, is stronger than the original design Fig. 2 (a), based on the pad, J-groove/fillet weld sizes and nozzle R/t ratio. The above evaluation demonstrates that the modified design satisfies the ASME Code stress limits and no further detailed analysis need be performed. The differences in the design are not significant and will not invalidate the results of the original analysis. SCE 2f,426 RE~V.4 12/CS (

REFERENCE:

S0123-XXVN.7.151 M-DSC-354

E&TS DEPARTMENT ECN NOJ N-2 PAGE -7 OF P CALCULATION SHEET PRELIM. CCN NO. I CCN C~ON'VERSION: Project or ECP SONGS 2 & 3 Calc No. M-DSC-354 CCN I ~o. CCN - I Subject Pressurizer Bottom Head Instrumentation Level Nozzle Evaluation Sheet!Lyof eF-,5 REV[ ORIGINATOR DATE IRE J DATE I REVJ ORIGINATOR DATE IRE DATE Jun Gaor N. Elakilyi r Figure E-1 Modified Half-Nozzle qrr-*rA7R REV. 4 12/05 fREFERENCF--S0123-0(TV-7,.15J [-DSC-354

CALCULATION SHEET E&TS DEPARTME NT ECN NOJ N-2 PRELIM. CCN NO. PAGE (5F 1 CCN CONVERSION: Project or ECP SONGS 2 & 3 Calc No. M-DSC-354 CCN NO. CON - 2.- Subject Pressurizer Bottom Head Instrumentation Level Nozzle Evaluation Sheet -'of E -5" SCE26-426 REV.4 12105 (REFERENCF-0S1Z3=lOV-7.l57 M-DSC-354}}