ML060880415

Calculation MDQ0999970046, Rev. 008, NPSH Evaluation of Browns Ferry RHR and CS Pumps

ML060880415
Person / Time
Site:	Browns Ferry
Issue date:	03/09/2006
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
References
MDQ0999970046, Rev 008
Download: ML060880415 (176)

Text

ENCLOSURE 6 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 2 AND 3 CALCULATION MDQ0999970046 NPSH EVALUATION OF BROWNS FERRY RHR AND CS PUMPS See attached.

QA Record I TVAN CALCULATION COVERSHEETICCRIS UPD I

. Page 1 REV 0 EDMS/RIMS NO . EDMS TYPE: EDMS ACCESSION NO (N/A for REV. 0)

R14981118108 lcalculabons(nuclear) R1 4 U U OJ b i 4 1 05 Calc

Title:

NPSH Evaluation of Browns Ferry RHR and CS pumps CALC ID TYPE ORG PLANT BRANCH NUM3ER CUR REV NEW REV CURRENT CN NUC B-N MEB M000999970046 007 008E REVISION jAPPLICABILITY NEW CN NUC Entire ailc 0 Selectec pages 0

.I No CCRIS Changes ACTION NEW 0 DELETE O 1 SUPERSEDE 0 CCRIS UPDATE ONLY 0 ([Forcatc revi:iion. CCRIS REVISION 0 RENAME O I DUPLICATE O (Verifier Approval Signatures Not been revieweS and no I Reured) . CCRIS chances required)

UNITS SYSTEMS 001, 002.003 064 074 075 NIA DCN.EDC.N/A APPLICABLE DESIGN DOCUMENTMS) N/A CLASSIFICATION NIA QUALITY SAFETY NVERIFIED SPECIAL REQUIREMENTS pESIGNOUTPUT SARJTS and/or ISFSI RELATED? RELATED? (If yes. ASSUMPTION ANDIOR LIMITING CONDITIONS? ATTACHMENT? SARJCo AFFECTD Yes O NoEl OR = yes) YesO MNo YesO MNo YesQ No -*

Yes l No O Yes O Noal PREPARER ID PREPARER PHONE PREPARING ORG (BRANCH) VERIFICATION NEW METHOD OFANALYSIS Fady Gaied NO MEB METHOD O Yes 0 No N l 1-312-269-6382 DESIGN REVIEW .

PREPARER S DATE CHECKER SIGNATURE OATE Fady Gaied Of-cC3-- o6 ChGus Rennels/ - °0 -2 VERIFIER SIPhr6AT f DATE gONLATURE DATE Chris Rennels 23-o9-2o6 Li - (//i//

3O1 a STATEMENT OF PROBLEM/ABSTRACT Problem:

The purpose of this calculation is to determine that the Residual Heat Removal (RHR) pump and the Core Spray (CS) pump Net Positive Suctioi Head (NPSH) is adequate and that margin is available for the Emergency Core Cooling System (ECCS) replacement strainer design.

Abstract:

This revision updates the calculation utilizing Multif~ow and updated flow and temperatures for EPUI. ATVIS. Appencix R. and 530 -cndcions MICROFICHEIEFICHE Yes 0 No 0 FICHE NUMBER(S) I TVA-F-U001744. TVA-F-U001745. TVA-F-UO01746 o LOAD INTO EDMS AND DESTROY 0 LOAD INTO EDOS AND RETURN CALCULATION TO CALCULATION ADDRESS:POB-IA-BFN LIBRARY.

O LOAD INTO EDMS AND RETURN CALCULATION TO:

TVA 40532 107-20051 Page 1 of 2 NECIP-2-1 107-08-20051 A

TVAN CALCULATION COVERSHEET/CCRIS UPDATE P'age 2 CALC ID I TYPEI ORG PLANT BRANCH [ _

M N.I ..R I RFV I _ I I _

.CN NUC BFN I MEB MD00999970046 008 I

.l ALTERNATE CALCULATION IDENTIFICATION 81.G ROOM I ELEV I COORD/AZIM FIRM lPrintReport Yes O Jt I NrA NIA NrA S&L CATEGORIES N/A KEY NOUNS (A-add,D-delete)

ACTION KEY NOUN AID KEY NOUN (AtDl CROSS-REFERENCES (A-add, C-change, D-delete)

ACTIo0; XREF XREF XREF XREF XREF XREF AICIDL CODE TYPE PLANT BRANCH NUMBER REV A _ DW-EB BFN 347W403-207=

A P DW BFN MEB 2-47W403-203 A P DW BFN MEB 3-47W403-209 A P DW BFN MEB 47W403-200 P DW 47W403-201 A BFN MEB A P DW BFN MEB 47W403-202 A P GN BFN MEB EPU TR T0611 A P GN BFN MEB EPU TR T0903 A P DW B.N MEB 1-E20 A P_ GN BFN MEB EPU TR T0902 A P TH BFN MEB ANSVHI 9.6.1-1998 A P GN BFN MEB E-mail 02/16/2006 _

CCRIS ONLY UPDATES:

Following are required only when making keyword/cross reference CCRIS updates and page 1 of form NEDP-2-1 is not included:

PREPARER SIGNATURE DATE CHECKER SIGNATURE l DA-E PREPARER PHONE NO.

-PA An r-1rnV -n-l 312-269-6382 EDMIS ACCESSION NO.

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TVAN COMPUTER INPUT FILE STORAGE INFORMATION SHEET Page 1 of I Page 2A TVAN COMPUTER INPUT FILE STORAGE INFORMATION SHEET Document MDQ0999970046 lRev. 8 Plant: BFN

Subject:

NPSH Evaluation of Browns Ferry RHR and CS pumps For Extended Power Uprate

! Electronic storage of the input files for this calculation is not required. Comments:

3 Input files for this calculation have been stored electronically and sufficient identifying information is provided below for each input file. (Any retrieved file requires re-verification of its contents before use.)

Ref. ID No. 308140 0 Microfiche/eFiche EDMS reference number: TVA-F-U001744 (unit 1)

EDMS reference number: TVA-F-U001745 (unit 2)

EDMS reference number: TVA-F-U001746 (unit 3)

Title:

NI'SH Evaluation of Browns Ferry EUfRand CS Pumps

• document type: CALCULATION OUTPUT(NUCLEAR)

• document date: 2006-03-09

• document identifier: mdq0999970046 facility : BFN Unit 0

• keywords : BCCS, RHR, CS, NPSH

• comments : Multiflow analysis WA 4535[1 2200J Pae 1of NED [1204.0)0 TVA 40535 112-2000] Page 1 of 1 NEDP-2-6112-04-201)0]

3 Sage 3 TVAN CALCULATION

Title:

. REVISION LOG NPSH Evaluation of Browns Feny RHR and CS Pumps MD-QO999-9 70046 Revision DESCRIPTION OF REVISION Date No. Approved 0 INITIAL ISSUE. 11-18-98 I Added case studies for one loop of RHR at runout, one at maximum design filow, all CS pumps at normal design flow, suppression pool temperature at 950F.

1. So4b Pages added: Cover Sheet, page 1 Table 3, pages 3A and 3B Appendix 1: 2 EZFLOW file printouts (36 pages)

Appendix 2: 2 EZFLOW file printouts (36 pages)

Pages deleted: None Pages changed by this revision: IA, 2,5, 13, 14, Appendix 1 cover

.sheet, Appendix 2 cover sheet SAR sections 4.8, 5.2.3.3.1 and H.4.2.1 have been reviewed by Werner Voss and this revision of the calculation does not affect the current contents of the SAR. These SAR sections will be revised based on these calculation results as part of the resolution of the Containment Overpressure issue.

Total pages Rev. 1: 352 Z~ ,bl ~ ~ -Il p.t*.4:.l 41 -tk. PCes

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4-Pane 4 TVAN CALCULATION RECORD OF REVISION CALCULATION IDENTIFIER MD-Q0999-970048 Rev. 04 Title NPSH EVALUATION OF BROWNS FERRY RHR AND CS PUMPS Revision DESCRIPTION OF REVISION No. I This calculation was reviewed In light of the NRC memos granting BFN approval of containment over-pressure, references 3.17. 3.18, and the SAR statements in section 6.5.5, Potential Plugging of Emergency Core Cooling System Suction Strainers, (Units 2 and 3). The summary of these documents are (1) During the short term LOCA event the first 10 minutes of a postulated LOCA event credit is taken for 3 psi above atmospheric in the primary containment air space and (2) During the long term LOCA event, from 10 minutes to the end of the postulated LOCA event, credit is taken for 1 psi above atmospheric In the primary containment air space for a period of time from 5500 to 35000 seconds, 1.5 to 9.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />. Table 3 states *2 psig of containment pressure Is added for all pool temperatures'. The calculation summary tables (Tables 1 and 2) provide the pump NPSH margin for the various cases analyzed. The first six plant conditions are within the first 10 minutes. The last line on each table i; the long term case where the suppression pool temperature Isat 177*F.

The NRC letters allow a 3 psig overpressure for the first 10 minutes compared to the calculation's assumed value of 2 psig. Therefore the results for the first six cases are conservative by 1 psig (2.31 ft water). The values for the first six plant conditions in Tables I and 2 have been revised accordingly.

The supporting Information In Table 3 has not been revised In order to maintain consistency with the actual EZFLOW calculated values; however, Table 3 has been annotated to refer to this discussion In the Revision Log.

The NRC letters do not allow overpressure in the period of 600 seconds to 5500 seconds; however, no cases are analyzed in this time period.

The NRC letters allow a 1 psig overpressure In the period of 5500 seconds to 35000 seconds compared to the value assumed In the calculation of 2 pslg overpressure. The case of peak suppression pool temperature (177° F) occurs at approximately 19000 seconds and thus falls In this I psig region. The NPSH margin for the last plant condition on Tables 1 and 2 have been reduced accordingly by I psig difference. The resulting NPSH margin value Is still positive (ie., acceptable) for the limiting pumps.

The supporting Information in Table 3 has not been revised in order to maintain consistency wits the actual EZFLOW calculated values; however, Table 3 has been annotated to refer to this discussion In the Revision Log.

This calc was not revised to reflect the NRC approved over-pressure of 1 psi since the cafce shosw that adequate NPSH to the RHR and CS pumps Is ensured.

SAR sections were reviewed via full text search for the key word overpressure In Curator. The SAR sections found were reviewed by the preparer and this revision of the calculation does not effect thu SAR.

This calculation does provide the basis for containment overpressure statements made In SAR section 6.5.5. }

This calculation addresses the NPSH information obtained from the following calculations: MD-Q)075- l R4 870258 and MD-Q0074-870380.

This calculation supersedes the following calculations: MD-03999-970055, ND-Q0074-880119, ND-Q0999-880127, ND-02000-880135, ND-Q0999-880138, ND-00999-880140, ND-Q0074-880141, and ND-02909-90019.

Pages added: 2A Pages revised: 5, 8, 13, 14, Table 3 Pages deleted: none Total Pages Rev 3: 355 EP2211.8199 ae1o TV 00 0.99 TVA 40709 101 .1Ml Page 1 Of I NEDP-2-2j01-0&-1W9j

dp, c:;, 5 a,( tpV-C,,mt,7,- mep Page4A TVAN CALClULATION RECORD OF REVISION CALCULATION IDENTiFIER MD.090 970048 Rev. 04 Thtle NPSH EVALUATION OF BROWNS FERRY RHR AND CS PUMPS Revision DESCRIPTION OF REVISION NO.

Dueto EPU. the pek supprossion pol tempenture has nsenlo¶186.15F' 14,700 seconds. This revision assumes a over pressure of 3 psl for both sheft and long terms. Tables 4 9 5 were added to prwide details of the calculation.

Page added: 1.2, 4A, 5,13 (Trble 4), 14, 15 (table 5), A-i, and A-2, B-i.,1-Pages revised: 4. 5. e,and II.

Pages deleted: 1, 1IA 3, 4, ww6 Total Pops: :12 Z64 cpws; I

FR Sections 6.4, e.5, and 14.6 and thu Technl SpecifIcations have Don rwhie# fsr chaner sociated with this revisloiL This calculation revslon reflects poraen 1er I values assocated Wi the m implementation of Extended Pow tiUrats (EPUJ. EPU requr the approval of a Icak smandmeet by.te NRC ando wl hesvWIs o multpl esdrs oSfthe F R edT TchnicalSpci~ctS i raorton of EPUowo dotmolnft FSAkq ad Tehnickal Spec8eatisn wii be.aooompglahod as

• -t of of i* EPU Seesa smendmentd t9omnq MRC approval.

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Page 4C TVAN CALCULATION RECORD OF REVISION CALCULATION IDENTIFIER MD00999970046 Title NPSH Evaluation t BrofmA Ferry RHR and CS Punps Revisbon DESCRIPTION OF REVISION No.

007 This revision adds Appendix 5 lo qubnty, end to document the bases for, the numeodcal values Ofavaable NPSr-I and NPSH marigns for U1 that ore subritted to the NRC In response lo both Generic Leter (GL) 97-04 and NIC Btiett 98 03.

Pages added: 4C, AppWfix 6 (8 peges), Attachment A (Pages A-B & A-9)

Pages reped and replaoed 1, Z & 5 Pages tAsed: 8 Pages deleted: none Toal Page Count -40 FSAR sectn 6.4,0.6, ad 14. and the Technical Specificatom have ben reved for changes associated wtR l rhVe. This calculation revison reflects parametersheuies associated Mth the Implanentalion of Extended Power Uprate (EPU) as well as the use of 3 pl conteinment overpressure credit aor calculating NPSH margins for Unit 1. Boll of theme concHdons will roequire ikenwe amndmnents that wlrevise wrvo FSAR nd Teo l Specircaons. Incorporr'ion of EPU conditions for Unit I as well as the over-pressure credit for ECCS NPSH analysis (TS-429) Into the FSAR asd TechnialS pecli katlo be .pjhedasa pan fthe EPUUcerneendTS-429 amendmrents Iowing NFIC approval. xZ7/114J12ID4 I VP. 40709 ,12.ZOOOJ Page

_ 0(1

,ELJF ...... ,.....

TVA 40709 LI2 2000] Page I f NEOP-2-2 [t:!44-200M

Paue 5 TVAN CALCULATION VERIFICATION FORM Calculation Identifier MDQ0999970046 Revision 007 Method of verification used:

1. Design Review

2. Alternate Calculation E0 Verifir ate

3. Qualification Test 0 Comments:

~1A NEDP2-4 (07 20011 Page 1cI I TYA 40633107.20013 iVA 40 107-MI]1 PageId I NEDP-2-4 107-09-20011

P1(*!I~

TVAN CALCULATION RECORD OF REVISION CALCULATION IDENTIFIER MDQ0999970046 Title NPSH EVALUATION OF BROWNS FERRY RHR AND CS PUMPS Revision DESCRIPTION OF REVISION No.

008 In this revision the existing EZ-flow model contained in Calculation MDQO-999-970046 was converted to Multi-Flow 1.21 using the hardcopy files contained in the calculation. The Multiflow model was verified against current plant layout and configurations and case runs were made using the same pump configurations and flows as Rev. 007 with temperatures updated for Extended Power Uprate (EPU) conditions.

This revision also Includes evaluation of ECCS pump NPSH for the special events of Anticipated Transient Without Scram (ATWS), Appendix R, and Station Blackout (SBO) at Extended Power Uprate (EPU) conditions.

The model results were used to perform NPSH calculations for the RHR and CS pumps for various pump combinations and rated flow demands on the suction piping at various suppression pool temperatures.

FSAR sections 6.4, 6.5 and 6.15 and the Technical Specifications have been reviewed for changes associated with this change. This calculation revision reflects parameters/values associated with the implementation of Extended PowerUprate (EPU). This condition will require license amendments that will revise various FSAR and Technical Specifications. Incorporation of EPU conditions for ECCS analysis into the FSAR and Technical Specipcotons wi be accomplished as a part of the EPU license and amendments following NRC approval.

Pages added are: 2A, 5A, 5B and AlD Appendix D is added.

Pages revised are: 1,2 and 7- 115 Appendices 1, 2, 4 and 5 are deleted.

Attachment C Is deleted.

Total Page Count: 139 ae1o EP22(20-C0 TVA 40709 [.-00 WA 400 [12-20001 Page I f 1 NEDP-2-2 [12-04-2001

Pane 58 TVAN CALCULATION VERIFICATION FORM Calculation Identifier MDQ0999970046 Revision 8 Method of verification used:

1. Design Review .

2. Alternate Calculation O Verifier Date V.?o9-zo(6

3. Qualification Test El Chris Rennels Comments The design inputs and sources are valid for the purpose of the calculation. The results and conclusions are reasonable and correct based on the inputs and methodology. Based on this review, it is concluded that the calculation is technically correct.

The review was conducted in accordance with the applicable requirements of TVAN NEDP-2 and NEDP-5.

Pagelofi Il I TVA 40533 [07.20011 TVA 40533 107-20011 I Page Iof 1 l, I NEDP-2-4 [07-09-20011

panp 6 TVAN CALCULATION TABLE OF CONTENTS Calculation Identifier: MDQ0999970046 l Revision: l 008 TABLE OF CONTENTS SECTION TITLE PAGE TVAN Calculation CoversheetlCCRIS Update 1,2 TVAN Computer Input File Storage Information Sheet 2A TVAN Calculation Record of Revision Sheet 3,4,4A, 4B.

4C, 5A TVAN Calculation Verification Form 5, 5B TVAN Calculation Table of Contents 6 1.0 Purpose 7 2.0 References 7 3.0 Design Input Data 9 4.0 Assumptions 9 5.0 Special Requirements/Limiting Conditions 9 6.0 Computations And Analysis 10 7.0 Supporting Graphics 16 8.0 Results and Conclusions 22 Appendices Appendix 1: Deleted Appendix 2: Deleted Appendix 3: Evaluation Of ECCS Strainer To Ingest A Steam Plume/Bubble 3 Pages Appendix 4: Deleted Appendix 5: Deleted Attachments A. Previous Cover Sheets 10 Pages B. Memo from Tom Newton to Those Listed 3 Pages C. Deleted D. E-mail forwarded by Donald McQueen from Thomas Newton 2 Pages Page 1 of I NED P-2-3 112-04-2000]

TVA [12-2000]

40710 [12-2000]

TVA 40710 Page 1 Of I NEDP-2-3 112-04-2000]

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN U1, 2&3 l Page: 7

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date__

Checked Date CALCULATION SHEET

1. PURPOSE The purpose of this revision is to revise the existing Emergency Core Cooling System (ECCS) suction piping hydraulic analysis to be based on the current accepted TVA method (Ref. 2.5) at Extended Power Uprate (EPU) conditions. Results of that analysis are then used to compute the Net Positive Suction Head (NPSH) available for pump and system flows. This revision also includes evaluation of ECCS pump NPSH for the special events of Anticipated Transient Without Scram (ATWS), Appendix R, and Station Blackout (SBO) at EPU conditions. NPSH available is determined for various ECCS pump combinations and rated flow demands on the suction piping at various suppression pool temperatures. Where necessary, suppression pool containment pressure necessary to meet the NPSH required is also determined.

2. REFERENCES 2.1 Vendor Technical Manual BFN-VTM-B260-0010 for Bingham-Willamette Pumps, Section 0020 (CS Pump Curves).

2.2 Vendor Technical Manual BFN-VTM-B260-0010 for Bingham-Willamette Pumps:. Section 0040 (RHR Pump Curves).

2.3 Marks' Standard Handbook for Mechanical Engineers, 8th Edition.

2.4 TVA Drawings:

a. 47W403-204, R5

b. 47W403-205, R4

c. 47W403-206, R4

d. 3-47W403-207, RO

e. 47W403-208, R4

f. 2-47W403-203, RO

g. 3-47W403-209, RO

h. 47W403-200, R3

i. 47W403-201, R5

j. 47W403-202, R3 2.5 MULTIFLOW- Version 1.21 (S&L Program Number 03.7.749-1.21, Dated 09/25/02)1.

2.6 TVA Drawings:

a. 2-47E814-1, R049, "Flow Diagram- Core Spray System".

b. 3-47E814-1, R033, "Flow Diagram- Core Spray System".

c. 2-47E8 11-1, R064,"Flow Diagram-Residual Heat Removal System".

d. 3-47E811-1, R061,"Flow Diagram-Residual Heat Removal System".

e. 1-47E814-1, R013, "Flow Diagram- Core Spray System".

f. 1-47E81 1-1, R025,"Flow Diagram-Residual Heat Removal System".

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN U1, 2&3 l Page: 8 S ubject: NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared _____Date_

Checked ____Datc_

CALCULATION SHEET 2.7 Additional Drawings:

a. PDM Drawing 2-E20, R004, "TVA Containment Vessel"

b. PDM Drawing 3-E20, R001, "TVA Containment Vessel"

c. PDM Drawing 1-E20, R000, "TVA Containment Vessel" 2.8 TVA Design Criteria No. BFN-50-7074, "Residual Heat Removal System", Units 2 & 3, Rev.

17, to include DIM-BFN-50-7074-25.

2.9 TVA Design Criteria No. BFN-50-7075, "Core Spray System", Units 2 & 3, Rev. 6.

2.10 TVA Engineering Change Notice L1636.

2.11 TVA Engineering Change Notice P0602.

2.12 TVA Design Criteria No. BFN-50-715, "Environmental Design", Rev. 5.

2.13 Steam Tables, Combustion Engineering, 15th printing. Values reprinted from 1967 ASME Stearn Tables.

2.14 GENE-E12-00148-04, "Net Positive Suction Head (NPSH) Evaluation for Browns Ferry Nuclear Plant ECCS Strainer Design", Revision 0, June, 1997.

2.15 GENE-E12-00148-01, "ECCS Suction Strainer Hydraulic Sizing Report", Rev. 0.

2.16 GENE-E12-00148-06, "Containment Pressure Report", Rev. 0.

2.17 NRC memo dated Nov 15, 1999,

Subject:

BFN Units 2 and 3, Completion of Licensing Actions for Bulletin 96-03, Potential Plugging of Emergency Core Cooling Suction Strainers By Debris In Boiling Water Reactors, Dated May 6, 1996 (TAC NOS M96135, M915136 and M96137) L449911230011.

2.18 NRC memo dated Sep 3, 1999,

Subject:

BFN Units 2 and 3, Issuance Of Amendments Regarding Crediting Of Containment Over-Pressure For Net Positive Suction Head Calculations For Emergency Cooling Pumps. I44-990913-002.

2.19 TVA BFN Unit 2 and 3 EPU Task 0406: ECCS Net Positive Suction Head. GE-NE-A22-00125-27-01, Rev. 0, May 2002 (W 79 020517 001).

2.20 EPU Task Report T0902, "Anticipated Transient Without Scram", Rev. 2.

2.21 EPU Task Report T0611, "Appendix R Fire Protection", Rev. 0.

2.22 EPU Task Report T0903, "Station Blackout", Rev. 0.

2.23 ANSI/HI 9.6.1-1998, "American National Standard for Centrifugal and Vertical Pumps for NPSH Margin", Hydraulic Institute, 1998.

Document: MD-Q0999-970046 I Rev.: 8 lPlant: BFN U1,2&3 2 Page:9 =

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared _Date_

Checked Date-CALCULATION SHEET 2.24 TVA Correspondence (E-Mail),

Subject:

"Fw: Pump/Flow Combination Cases for MULTIFLOW EPU Revision to NPSH Calculation", 02/16/2006 11:32 AM. (Attachm ent D) 2.25 STMFUNC, Steam Table Function Dynamic Link Library (DLL), Program No. 03.7.598-3.1.

See Appendix 3 for additional references.

3 DESIGN INPUT DATA Input data required is derived from references shown above. The pump flow rates and fluid temperatures are taken from TVA correspondence (Ref. 2.24).

4 ASSUMPTIONS 4.1 No pressure drop is assumed across the strainers for ATWS, SBO, and Appendix It. events.

These events do not result in debris entering the suppression pool and the strainers are large enough to have negligible pressure drop when clean. Check valves with minimal equivalent length are included to aid with convergence.

4.2 The minimum NPSHr at 10,000 gpm for the RHR pumps is 23.7 ft from Reference 2.2.

Conservatively, this value is used for all RHR pumps with flow at 6500 gpm.

4.3 For bends with no angle and/or curvature information denoted on drawings, 90' short radius elbows are conservatively assumed.

4.4 HPCI and RCIC systems are assumed to not operate in a mode drawing suction from the torus ring header for all analyzed cases.

4.5 The effective strainer hydraulic loss is taken at the point of the ECCS piping flange for the strainer.

5 SPECIAL REQUIREMENTS/LIMITING CONDITIONS None

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NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date_

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CALCULATION SHEET 6 COMPUTATIONS AND ANALYSIS The multiflow Version 1.21 runs were executed on S&L PC #ZD2958 using Windows NT Operating System. The following files are located in E:\0N3015\TVA\Multiflow files\Multi Flow program q . . . . . .. I . ' '. . I . I I I I..I1. ... .

I

FM KAtAm Re bi.

::: . . . . . . .. . . . . . . .

V;K XTIR OW,Kp . . . . . . . . . . . . . . . . . . . . .. . .. . .. . . . . . .. . . . . .. . . . . . . . . . . . . . . .. . . . . . . . . . . . . . .. . .. . . . . . . . . . . . . . . . . .

. .. . .. . .. I.. ... ... ... ... . .. . .. . .. . .. ... .... .. . .. . .. . .. ... .... . .. . . . . . . .. .. . . . . . . . . .. .. . . . . . . . . .. . . . . . . . . . .. .. . . . . . .. ...... . .. ... ... ............. . . . . . . . . . . . . . . .......

TVA-.. .

~

1, ciofAeO"rdsT . . . . . . . I . . . I . . . . . . . . . . . .

. . . . . . . . . . . I .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. ..

-'4: LNes . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contrd PMC . . .. .. . . . . . . . .. .. . . . . . . . . . . . . .. . . . . . . . . . . .. .. . . . . . . . . . . . . .. .. . . . . . .. .. .. . . . . . . .. . .. .. ... . . . . . . . . . . .. . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . .. . . . . . . . .

4~ . . . . .. . . . . . . . .. . . . . . .. . . . . .. . . . . . . . . . . . . . . .. . . . . . .

My*k Pt.. . .. . .. .. . .. . .. . .. . .. . .. . .. .. . .. . .. . .. .. . .. . .. .... .. .. . .. .. .. .. .. .. .. .. ... . . . .. . . . .. . .. ... .... .. . .. . .. . .. . .. . .. ... .. . .. . .. . .. . . ... . .. . .. . .. . .. . . . .. ... ... . .. . .. . .. . . . . .. . . . . . . . . . . . . .. . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . .. . .. .. .. . .. . ..

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NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date_

I Checked Date-CALCULATION SHEET The results presented are based on the conditions specified for each of the analyzed scenario These conditions must be met for the results of the applicable scenarios to be valid.

This calculation documents the results of analysis to determine the NPSH available for the pipe routing and configuration from the ECCS suction strainer to the pump suction for both the RHR and CS piping systems. NPSH margins are calculated for selected pump flow combinations and system maximum flow rates and suppression pool temperatures. The system operating conditions and modes of operation,; that are considered in this analysis are listed below.

Table 1: Temperature and Flow Rate Combinations LOCA Pump/Flow Combinations Suppression Pool Temperature CS Pumps A/B/C/D - 3125 gpm each Temperature @ 95F RHR A/C Pumps - 10,000 gpm each Temperature @ 10 minutes EPU (155.40 F)

RHR B/D Pumps - 11,000 gpm each CS Pumps A/B/C/D - 3125 gpm each Temperature @ 950F RHR A/C Loop - 11,000 gpm each Temperature @ 10 minutes EPU (155.4F)

RHR B/ID Loop - 10,000 gpm each CS Pumps A/C - 3125 gpm each, B/D - 0 Temperature @ 10 minutes EPU (155.40F)

RHR A/C Pumps - 6500 gpm each, B/ID - 0 Temperature where NPSHa = NPSH, Temperature @ Tmax EPU (187.3IF)

CS Pumps B/D - 3125 gpm each, A/C - 0 Temperature @ 10 minutes EPU (155.40 F)

RHR A/C Pumps - 6500 gpm each, B//D - 0 Temperature where NPSHa = NPSHr Temperature (a TmaX EPU (187.3IF)

CS Pumps B/D - 3125 gpm each, A/C - 0 Temperature @ 10 minutes EPU (155.4"F)

RHR B/D Pumps - 6500 gpm each, A/C - 0 Temperature where NPSHa = NPSH, Temperature @ T,,. EPU (187.30 F)

CS Pumps A/C - 3125 gpm each, B/ID - O Temperature @ 10 minutes EPU (155.40 F)

RHR B/D Pumps - 6500 gpm each, A/C - 0 Temperature where NPSHa = NPSH, Temperature @ Tn,;, EPU (187.30 F)

CS Pumps A/C - 3125 gpm each, B/D - 0 Temperature @ 1660 F RHR A/B/C/ID Pumps - 6500 gpm each I

ATWS Pump/Flow Combinations RHR A/B/C/D Pumps - 6500 gpm each Temperature (,214.6 0 F (EPU Task Report 10902)

I Appendix R Pump/Flow Combinations One RHR Pumps (non specific) - 6500 gpm Temperature ti,2270F (EPU Task Report T061 1)

I SBO Pump/Flow Combinations Two RHR Pump (A/C) - 6500 gpm, B/D -0 Temperature @ 197.3 0F (EPU Task Report 0903)

Two RHR Pump (BMD) - 6500 gpm, A/C -0

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NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared - Date_

Checked - ateat-CALCULATION SHEET Per American Hydraulic Institute standards (Ref. 2.23), the required Net Positive Suction Head (NPSHr) of a pump is the NPSH that will cause the total head to be reduced by 3%, due to flow blockage from cavitation vapor in the impeller vanes (Ref. 2.23). The Net Positive Suction Head Required (NPSHr) for the RHR and CS pumps is determined from the vendor pump curves (Ref. 2.1 and 2.2). The difference between NPSHa and NPSHr is the NPSH margin.

The NPSHa is the actual fluid energy delivered to the pump impeller through the piping configuration and is calculated by the following equation (Ref. 2.3).

NPSHa=ha+h,-h- hvp (Eq. 6.1) where:

ha = Atmospheric head = Suppression Pool airspace pressure converted to feet of water (ft).

h.= Static pressure head = Elevation difference between the centerline of the pump inlet and the suppression pool water level (fit).

hf= Total friction head loss (ft).

hyp = Vapor pressure of water at system temperature (ft).

The Browns Ferry Plant ECCS configuration includes an ECCS ring header circumscribing the suppression chamber with connecting piping to four inlet penetrations through the torus wal l into the suppression pool. Inside the suppression pool, each connecting line is fitted with a flanged surface for mating to the ECCS strainer flanges. The ECCS ring header supplies the suction piping of the RHR, CS, High Pressure Core Injection (HPCI) and Reactor Core Isolation Cooling (RCIG) systems.

Since the ECCS ring header and the connecting piping to the ECCS strainers is common to the suction of all of the ECCS pumps, the flow and pressure distribution for the ring header and strainers is different for varying system demands. Therefore, to determine individual ECCS pump suction pressures for various plant states, a model of the suction piping configuration was created from TVA drawings (Ref. 2.4 and 2.6) for analysis with the Multiflow computer program (Ref. 2.5). A simplified layout of the Multiflow model for the ECCS ring header and suction piping to the RHR and CS pumps is shown in Figure 7.1 (See Section 8.0). All model link input dimensions and components were taken from TVA drawings (Ref. 2.4 and 2.6) which contained systems configuration and dimensions. Nodal diagrams for Units 1, 2 and 3 ECCS hydraulic models are shown in Figures 7.2, 7.3 and 7.4, respectively (See Section 8.0).

For piping links in the model, piping lengths included the total piping isometric dimension. When drawings did not specify whether a piping elbow was short or long radius, the conservative case, e.g.

short radius was chosen. The types of valves used in the models were taken from Reference 2.6. For all form losses (elbows, valves, etc.), the Multiflow default values of equivalent length, resistance, etc. were selected. The piping roughness value of 0.00015 ft was selected, which is acceptable for a condensate quality system and would not be expected to change with the system age.

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CALCULATION SHEET System design flow values for RHR and CS were taken from Reference 2.24. In the MultiFlow model the flow is represented in sgpm, requiring the conversion from gpm. The conversion is shown below.

Flow (gm))* Specific Volume of Water at standard Temp. and Pressure F1o(m) (Eq6.2)

Specific Volume of Water at desired Temp. and Pressure The standard temperature and pressure used in Multiflow is 600 F at 14.7 psia. All flows are converted to sgpm at the corresponding temperature for all cases. All sgpm conversions are shown in Tables 4 and 5.

For the LOCA cases, in the MultiFlow model a pump component is used to model the strainer pressure drop as a function of the flow rate. Flows obtained from Reference 2.15 were converted to flow at standard conditions using Equation 6.2. Values of head loss at corresponding strainer flow rates taken from Reference 2.15 are converted to head loss at standard conditions. A plot of head loss at standard conditions was developed. A third order polynomial equation of head loss at standard conditions was developed in order to obtain head loss values between data points (See Fig. 7.5).

Table 2 depicts the head loss used to model the strainers as a function of flow. The values listed in Table 2 are linearly interpolated in Multiflow to obtain the system head loss.

Table 2: Strainer Loss Flow (sgpm) Loss (ft) 0 0 4592 -0.230 6000 -0.890 7000 -1.340 9000 -2.410 11000 -3.610 13239 -5.118 13288 -5.201 13514 -5.354 13515 -5.377 13565 -5.403 13624 -5.466 14033 -5.711 15000 -6.440

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CALCULATION SHEET cases, "dummy" check In order to assist analysis convergence in the ATWS, Appendix R and SBO in the piping links valves with a minimum equivalent length to model strainer loss were installed the strainer pressure from the strainer flanges to the ECCS ring header tees. For these special cases, drop is assumed to be zero since there is no debris in the strainer.

centerline. In the Pump static suction head is equal to the available water level above pump suction node is needed for calculation purposes. It is Multiflow model, the static head at the strainer flange From TVA model at the strainer flanges.

necessary to establish this value in psig in the Multiflow '36' 3/4" pool is 536' 1 3/4" with Ap and drawings (Ref. 2.6), the low water level of the suppression with zero delta P. which will be considered here.

Rfa........ Pool Leve

. .:.. . .'.. .. .. :. :'.-:.. '3J'.

2.a,5an4" Angl =4 f (Ref2 h is the vertical distance from point A to the Ring Header centerline.

h =2.283 (Ref.2.7ab and c)

Point A is the strainer piping flange.

Point A elevation =525.333+2.283 =527.616 and static head...of... = 536.062 - 3527.6

..Pt....A .ft . .. 16 .. =.28.446

27) for the specified These pressures were established at the strainer flange points (nodes 1, 5, 23, and are taken from temperatures. The densities as a function of temperature in the following equations STMFUNC (Ref. 2.25).

At 950 F, HE = 8.446 ft x 62.05 .14 in = 3.63 9 psig (Eq. 6.2a)

At 155.40 F,Hs = 8.446 fi x 61.09-÷ .144-f = 3.583 psig (Eq. 6.2b)

At 1660 F, Hs = 8.446ft x 60.88 -÷ .144-f = 3.S70psig (Eq. 6.2c)

At 1720 F, HE = 8.466 ft x 60.75- + 144-f = 3.563 psig (Eq. 6.2d)

At 187.30 F,Hs = 8.446 ftx60.42-÷3*.144-a = 3-544 psig (Eq. 6.2e)

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CALCULATION SHEET lb in2 At 197.3 0F,Hs = 8.446 fi x 60.18 -÷144- = 3.529psig (Eq. 6.2f) f3 ft2 At 214.60F, H1= 8.446 ft x 59.76 ÷ 144 -n= 3.505 psig (Eq. 6.2g) ft ft 2 At 2270F, H1 = 8.446 ft x 59.44 .144!! 2 = 3.486 psig (Eq. 6.2h) ft3 ft2 The static elevation pressures at the ECCS piping flange points at corresponding system temperatures are summarized in Table 3.

Table 3: Strainer Pressure Temperature( 0 F) Pressure (psig) 95.00 3.639 155.4 3.583 166.0 3.570 173.0 3.562 172.0 3.563 187.3 3.544 197.3 3.529 214.6 3.505 227.0 3.486 The Multiflow model calculation accounted for system static head and piping friction Jcsses. To obtain the NPSH available, it was necessary to subtract fluid vapor pressure hvp (at the analyzed suppression pool temperature) and take into account the suppression pool absolute pressure. Utilizing Equation 6.1, the available NPSH is determined. Reduction of these values by the specific pump required NPSH values from vendor pump curves (Ref. 2.1 and 2.2) results in the final NPSH margin for the pumps. [NPSHa = {Ha (value of pool pressure) + (He-Hr) (value of Multiflow pump suction pressure) - Hp (correction for fluid vapor pressure)} X (psia to feet conversion factor)]. See Tables 7.1 through 7.24 for calculations of NPSHa and NPSH margin for Unit 1. See Tables 11.1 through 11.24 for calculations of NPSHa and NPSH margin for Unit 2. See Tables 14.1 through 14.24 for calculations of NPSHa and NPSH margin for Unit 3.

Flow conditions of the RHR and CS systems analyzed were 1)Maximum flow at a pool temperature of 950 F.

2) Maximum flow combinations at pool temperatures of 155.41F and 1660 F with no operational reduction.

3) Long term operation at the suppression pool design temperature limit of 187.31F at desigr. required system flow.

4) Maximum flow combinations at pool temperature where NPSHa is equal to NPSHr.

5) Flow conditions of RHR system analyzed at pool temperature of 214.61F (ATWS, Ref. 2.20).

6) Flow conditions of RHR system analyzed at pool temperature of 2270 F (Appendix R, Ref. 2.21).

7) Flow conditions of RHR system analyzed at pool temperature of 197.30 F (S130, Ref. 2.22).

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CALCULATION SHEET 7 SUPPORTING GRAPHICS Figure No. Title Page Figure 7.1 General multiflow Model 17 Figure 7.2 Unit 1 nodal diagram 18 Figure 7.3 Unit 2 nodal diagram 19 Figure 7.4 Unit 3 nodal diagram 20 Figure 7.5 Strainer Loss Curve Fit 21

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CALCULATION SHEET 30 3 FIGURE 7.1 General MultiFlow Model

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CALCULATION SHEET Figure 7.2 Unit 1 Nodal Diagram.

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN U 1,2&3 Page: 19 S ubject: NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date-Checked _ Date-CALCULATION SHEET Figure 7.3 Unit 2 Nodal Diagram.

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CALCULATION SHEET UNTo Figure 7.4 Unit 3 Nodal Diagram.

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NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date-IChecked Date CALCULATION SHEET Figure 7.5: Strainer Head Loss Curve 7

6 5

94 co

• GE Report strainer bss 0

-J a Intermediate Strainer Loss x High Flow strainer Loss I 3 2

1 n

0 2000 4000 6000 8000 10000 12000 14000 16000 Flow (SGPM)

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. 2 ~Checked Dt CALCULATION SHEET 8 RESULTS AND CONCLUSIONS Summary values of pump NPSH margin are shown in Tables 6, 10 and 13 for Units 1, 2 and 3 respectively. In some cases overpressure is added to the normal atmospheric pool pressure (14.4 psia) to achieve the required NPSH.1 The pressures required to achieve BFN design basis desirable NPSH values are shown (Ref. 2.12) for each case in Tables 6, 10 and 13. The temperature determined at NPSHa = NPSHr is 172°F for all Units.

All steps taken to calculate NPSHa are shown in Tables 7.1 through 7.24 for Unit 1, Tables 11.1 through 11.24 for Unit 2, and Tables 14.1 through 14.24 for Unit 3. The pump pressures are obtained from Multiflow output files. The equations used in these tables are shown in Table 8.

Tables 9, 12 and 15 list the strainer pressure drop and flow rates for Units 1, 2 and 3 respectively.

MD-Q0999-970046, Rev. 8 Page :23 NPSH evaluation of Browns Ferry RIIR and CS punps CALCULATION SHEET Table 4: saom calculations Temp(0 F) V(ft3/Ib) Ratio VsIVr Flow Flow 60 0.01603 1.000000 (gpm) (sgpm) 95 0.01612 0.995022 172 0.01646 0.974154 95 155.4 214.6 172 227 197.3 166 187.3 155.4 .0.01637 0.979577 3125 3109 3061 2995 3044 2979 3016 3051 3027 214.6 0.01673 0.958300 4500 4478 4408 4312 4384 4289 4343 4393 435EI 227 0.01682 0.953197 6500 6468 6367 6229 6332 6196 6273 6345 6297 197.3 0.01662 0.965060 10000 9950 9796 9583 l 9742 1 95321 9651 l 9762 968E6 166 0.01643 0.976166 11000 10945 10775 10541 10716 10485 10616 10738 10653v 187.3 0.01655 0.968770 14700 14627 14400 14087 14320 14012 14186114350 14241 Note 1: See Table 5 for steps of conversion of flow from gpm to sgpm.

MD-Q0999-970046, Rev. 8 Page:24 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET l l A B I C 0Dl E I F I G I H I I J I K I L I M I, Tahie 5: sgpmcaslcuations 2 Temp(°F) V(ft 4Ilb) Ratio VsIVr Flow Flow 3 60 =vftsat-97(60) 1 gpm) (sgpm) 4 95 =vftsat-97(A4) =B3/B4 l _ _ _ _______

5 172 =vftsat_97(A5) =B3/B5 95 155.4 214.6 172 227 197.3 166 187.3 6 155.4 =vftsat_97(A6) =B3/B6 3125 =E6*C4 =E6*C6 =E6*C7 =E6*C5 =E6*C8 =E6*C9 =E6*C1O =E6*C11 7 214.6 =vftsat-97(A7) =B3/B7 4500 =E7*C4 =E7*C6 =E7*C7 =E7*C5 =E7*C8 =E7*C9 =E7*C1O =E7*C11 8 227 =vftsat97(A8) =B3/B8 6500 =E8*C4 =E8*C6 =E8*C7 =E8*C5 =E8*C8 =E8*C9 =E8*C10 =E8*C 11 9 197.3 =vftsat_97(A9) =B3/1B9 10000 =E9*C4 =E9*C6 =E9*C7 =E9*C5 =E9*C8 =E9*C9 =E9*C1O =E9*C11 10 166 =vftsat-97(Al0) =B3/B10 11000 =E10*C4 =E1O*C6 =E1O*C7 =E1O*C5 =E10*C8 =E10*C9 =E10*C1O =E10*C11 11 187.3 =vftsat_97(A11) =B3/B11 14700 =E11*C4 =E11*C6 =E11*C7 =E11*C5 =E11*C8 =E11*C9 =E11*C1O =E11*C1i 121_

This table depicts flow conversion to flow at standard conditions utilizing the ratio of specific volume of water at standard temperature and pressure (See cell B3) to the specific volume of water at desired temperature and pressure (See cells B4 13 through B11), the resulting ratios are displayed in cells C3 through C1.

All flows (gpm) (See cells E6 through El 1) are multiplied by the ratio VsNr at the desired temperature resulting in flows at 14 standard conditions (See cells F6 through Ml 1) used in Multiflow.

vftsat_97(Temperature) is the specific volume of water at a specific temperature, it is a thermodynamic property of water 15 obtained from STMFUNC excel add-in program (Ref. 2.25) (See cell B3 through B1 1)

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Checked _ Date-CALCULATION SHEET TABLE 6 Unit I LOCA Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure NVlSH (ft) (ft) (psia) margin (rt)

LOCA IA @950 F RHR/A 33.28 25.9 14.4 7.38 CS Pumps A/B/C/D-3125gpm each RHR/B 32.33 30 14.4 2.33 RHR A/C Pumps -1 0,000 gpm each I___I RHR B/D Pumps -11,000 gpm each RHR/C 31.89 25.7 14.4 6.19 RHR/I 33.91 29 14.4 4.91 CS/A 34.75 27 14.4 7.75 CS/B 36.93 27 14.4 9.93 CS/C 36.73 27 14.4 9.73 CS/D 35.13 27 14.4 8.13 LOCA 1B @155.4 0 F RHR/A 31.07 25.9 16.7 5.17 CS Pumps A/B/C/D-3125gpm each RHRtB 30.13 30 16.7 0.13 RHR A/C Pumps -10,000 gpm each RHR B/D Pumps -11,000 gpm each RHR/C 29.68 25.7 16.7 3.98 RHR/D 31.71 29 16.7 2.71 CS/A 32.55 27 16.7 5.55 CS/B 34.73 27 16.7 7.73 CS/C 34.52 27 16.7 7.52 CS/D 32.92 27 16.7 5.92 LOCA 2A @95 0F RHR/A 32.39 29 14.4 3.39 CS Pumps A/B/C/D-3125gpm each RHR/B 33.50 26.4 14.4 7.10 RHR A/C Pumps -11,000 gpm each RHR/C 30.71 29 14.4 1.71 RHR B/D Pumps -10,000 gpm each RHR.C 30.71 29 14.4 1.71 RHR/D 34.80 25.8 14.4 9.00 CS/A 34.72 27 14.4 7.72 CS/B 36.90 27 14.4 9.90 CS/C 36.70 27 14.4 S.70 CStD 35.10 27 14.4 E.10 LOCA2B @155.40 F RHR/A 31.18 29 17.0 2.18 CS Pumps A/B/C/D-3125gpm each RHR/B 32.28 26.4 17.0 -5.88 RHR A/C Pumps -11,000 gpm each RHR/C 29.50 29 17.0 0.50 RHR B/D Pumps -10,000 gpm each RHR/D 33.58 25.8 17.0 7.78 CS/A 33.50 27 17.0 6.50 CS/B 35.68 27 17.0 8.68 CS/C 35.48 27 ]7.0 8.48 CS/D 33.88 27 17.0 0.88 LOCA3A 0 RHR/A 35.92 23.7 14.4 12.22

@155.4 F CS Pumps A/C-3125gpm each RHR/C 35.33 23.7 14.4 11.63 B/D-0 gpm each RHR A/C Pumps-6500 gpm each CS/A 31.83 27 14.4 4.83 B/D-0 gpm each CS/C 33.81 27 14.4 1 i.81 L _____________________¶.______________I ______________ . A

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Checked Date_

CALCULATION SHEET LOCA Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure Nl'SH (ft) (ft) (psia) margin (ft)

LOCA3B @172°F RHR/A 31.24 23.7 14.4 7.54 CS Pumps A/C-3125gpm each N aNPSHr RHR/C 30.65 23.7 14.4 695 RHR A/C Pumps-6500 gpm each CS/A 27.15 27 14.4 0 15 B/D-O gpm each CS/C 29.13 27 14.4 2.13 LOCA3C @187.3 0F RHR/A 31.25 23.7 16.9 7.55 CS Pumps A/C-3125gpm each RHWR/C 30.66 23.7 16.9 6 96 B/D-0 gpm each CS/A 27.16 27 16.9 0 16 RHR A/C Pumps-6500 gpm each CS/A 27.16 27 16.9 016 B/D-0 gpm each _____ CS/C 29.14 27 16.9 2.14 LOCA 4A @155.4 0F RHR/A 35.93 23.7 14.4 12'.23 CS Pumps B/D-3125gpm each RHR/C 35.34 23.7 14.4 11.64 A/C-O gpm each CS/B 33.70 27 14.4 6.70 RHR A/C Pumps-6500 gpm each CS/D 31.89 27 14.4 4.89 B/D-0 each LOCA4B @172°F RHR/A 31.25 23.7 14.4 7.55 CS Pumps B/D-3125gpm each RHRJC 30.66 23.7 14.4 6.96 RHR A/C Pumps-6500 gpm each NPSHa=NPSHr CS/B 29.02 27 14.4 2.02 B/D-0 gpm each CS/D 27.21 27 14.4 0.21 LOCA4C @187.3°F RHR/A 31.26 23.7 16.9 7.56 CS Pumps B/D-3125gpm each RHR/C 30.67 23.7 16.9 6.97 A/C-0 gpm each CS/B 29.03 27 16.9 2.03 RHR A/C Pumps-6500 gpm each___

B/D-0 gpm each CS/D 27.22 27 16.9 0.22 LOCASA @155.4°F RHR/B 35.64 23.7 14.4 11.94 CS Pumps B/D-3125gpm each RHR/D 36.19 23.7 14.4 1,2.49 A/C-0 gpm each CS/B 33.67 27 14.4 6.67 RHR B/D Pumps-6500 gpm each CS/D 31.87 27 14.4 4.87 A/C-O gpm each LOCA5B @172¶ RHR/B 30.96 23.7 14.4 7.26 CS Pumps B/D-3125gpm each RHR/D 31.51 23.7 14.4 7.81 A/C-0 gpm each NPSHa=NPSHr .

RHR B/D Pumps-6500 gpm each CS/B 28.99 27 14.4 1.99 A/C-0 gpm each CS/D 27.19 27 14.4 0.19 LOCA5C @187.3°F RHR/B 30.97 23.7 16.9 7.27 CS Pumps B/D-3O25gpmeach g 31.52 23.7 16.9 7.82 A/C-C) gpm each____ ___

RHR B/D Pumps-6500 gpm each CS/B 29.01 27 16.9 2.01 A/C-O gpm each CS/D 27.20 27 16.9 0.20 0

LOCA 6A @155.4 F RHR/B 35.62 23.7 14.4 11.92 CS Pumps A/C-31I25gpm eachRHD 361 237 44 I; B/D-0 gpm each 36.17 23.7 14.4 12.47 RHR B/D Pumps-6500 gpm each CS/A 31.87 27 14.4 4.87 A/C-O gpm each CS/C 33.85 27 14.4 6.85

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN Ul, 2&3 1 Page: 27

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared ____Date -

Checked ___Date-CALCULATION SHEET LOCA Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure NI'SH (ft) (ft) (psia) margin

_ - (ft)

LOCA 6B @172°F RHR/B 30.94 23.7 14.4 7.24 CS Pumps A/C-3125gpm each RHR/D 31.49 23.7 14.4 7.79 B/D-0 gpm each NPSHa=NPSHr RHR B/D Pumps-6500 gpm each CS/A 27.19 27 14.4 0.19 A/C-0 gpm each CS/C 29.17 27 14.4 2.17 LOCA 6C @187.3 0 F RHR/B 30.95 23.7 16.9 7.25 CS Pumps A/C-3125gpm each RHR/D 31.50 23.7 16.9 7.80 B/D-0 gpm each CS/A 27.20 27 16.9 0.20 RHR B/D Pumps-6500 gpm each A/C-0 gpm each CS/C 29.18 27 16.9 2.18 LOCA 7 @166°F RHRJA 30.75 23.7 14.4 7.05 CS Pumps A/C-3125gpm each RHRIB 30.76 23.7 14.4 7.06 B/D-0 gpm each RHR/C 30.17 23.7 14.4 6.47 RHRAC/B/DPumps-6500gpmeach RD 31.31 23.7 14.4 7.61 CS/A 27.61 27 14.4 0.61 CS/C 29.59 27 14.4 2.59 ATWS Pump/Flow Combination Pool Temp. Pump NPSHa NPSHr Pressure N]'SH (ft) (ft) (psia) margin Ift)

ATWS @214.6°F RHRIA 24.48 23.7 21.0 0.78 RHR A/C/B/D Pumps-6500 gpm each RHR/B 24.53 23.7 21.0 0.83 CS Pumps A/C/B/D-0 gpm each RHR/C 23.90 23.7 21.0 0.20 RHR/D 25.08 23.7 21.0 1.38 Appendix R Pump/Flow Pool Temp. Pump NPSHa NPSHr Pressure N'PSH Combination (ft) (ft) (psia) margin INt)

App-RA @227F A 23.93 23.7 24.1 C.23 RHR Pump A-6500 gpm App-RB @227°F B 23.91 23.7 24.1 tl.21 RHR Pump B-6500 gpm _

App-R C @2270F C 23.81 23.7 24.1 0.11 RHR Pump C-6500 gpm App-RD @227 0F D 23.99 23.7 24.1 0.29 RHR Pump D-6500 gpm SBO Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure NPSH (ft) (ft) (psia) margin I_ (ft)

SBO I A/C @197.3°F A 24.44 23.7 16.0 0.74 RHR Pump A/C-6500 gpm each C 23.85 23.7 16.0 0.15 SBO 2 B/D @197.3 0F B 23.89 23.7 16.0 (.19 RHR Pump B/D-6500 gpm each D 24.44 23.7 16.0 0.74

MD-Q0999-970046, Rev. 8 Page:28 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.1: Unit 1 NPSH Calculations Case 1A 95F I Vapor Pressure Specific Volume Conversion Factor Temp("F) (psia) I V(ft31lb) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 95 _ 0.816362332 0.016115213 2.320590685 [ Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A 0.757222 33.28 25.9 7.38 2PUMPB 0.350229 32.33 30 2.33 3PUMF'C 0.159882 31.89 25.7 6.19 4PUMF'D 1.02991 33.91 29 4.91 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 1.39134 34.75 27 7.75 2CSPUMPB 2.33064 36.93 27 9.93 3CSPUA1PC 2.24387 36.73 27 9.73 4CSPUMPD 1.5537 35.13 27 8.13 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:29 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.2: Unit I NPSH Calculations Case 1B 155.4F Vapor Pressure Specific Volume Conversion Factor Temp("F)

-- I (psia) I I

V(f3/lb)

I psia to feet of head 60 0.256389624 0.016034992 2.309038802 155.4_ 4.249928506 j 0.016369309 2.357180486 Pool Press. (psia) 16.

RHR Pressure (psig) NPSHa (fi) NPSHr (H) NPSH margin (f)

IPUMi'A 0.732314 31.07 25.9 5.17 2PUMPB 0.332824 30.13 30 0.13 3PUMf'C 0.143287 29.68 25.7 3.98 4PUMi'D 1.00271 31.71 29 2.71 Cs Pressure (psig) NPSHa (if) NPSHr (Hf) NPSH margin (Hf)

I CSPUMPA 1.35744 32.55 27 5.55 2CSPUMPB 2.28199 34.73 27 7.73 3CSPUPAPC 2.19655 34.52 27 7.52 4CSPUMPD 1.51634 32.92 27 5.92 Note 1: ',ee Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:30 NPSH Evaluation of Browns Feny RHR and CS pumps CALCULATION SHEET Table 7.3: Unit 1 NPSH Calculations Case 2A 95F Vapor Pressure I Specific Volumel Conversion Factor Temp(c'F) (psia) V(ft31b) psia to feet of head Ih - --------- - --- ---- n . - --------

bU U.U1 bU349YZ Z.3UY03t60z 95 0.816362332 0.016115213 j 2.320590685 IPool Press. (psia 14.4 RHR Pressure (Psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A 0.373923 32.39 29 3.39 2PUMF'B 0.850622 33.50 26.4 7.10 3PUMF'C -0.34906 30.71 29 1.71 4PUMPD 1.41222 34.80 25.8 9.00 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (if) 1CSPUA1PA 1.37851 34.72 27 7.72 2CSPUMPB 2.31816 36.90 27 9.90 3CSPUMPC 2.23104 36.70 27 9.70 4CSPUhlPD 1.54122 35.10 27 8.10 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:31 NPSH Evaluadon of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.4: Unit I NPSH Calculations Case 2B 155.4F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) V(ft31lb) psia to feet of head

- - - - - - - I - - - - - - - -

I 60 0.256389624 0.016034992 2.309038802 155.41 4.249928506 j 0.016369309 _ 2.357180486 Pool Press. (psa) 17 RHR Pressure (psig) NPSHa (ft) NPSHr(ft) NPSH margin (ft) 1PUMPA 0.477709 31.18 29 2.18 2PUMPB 0.94292 32.28 26.4 5.88 3PUMPC -0.23507 29.50 29 0.50 4PUMI'D 1.49653 33.58 25.8 7.78 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 1.46104 33.50 27 6.50 2CSPUMPB 2.38859 35.68 27 8.68 3CSPUtAPC 2.30015 35.48 27 8.48 4CSPUMPD 1.62294 33.88 27 6.88 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:32 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.5: Unit I NPSH Calculations Case 3A 155.4F Vapor Pressure Specific Volume Conversion Factor Temp( 0 F) (psia) I V(ft3 /lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 155.i 4.249928506 [ 0.016369309 j 2.357180486 J Pool Press. (psia 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 5.08703 35.92 23.7 12.22 2PUMPB ___

3PUMPC 4.83846 35.33 23.7 11.63 4PUMPD CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (1f) 1CSPUMPA 3.35325 31.83 27 4.83 2CSPUMPB 3CSPUJMPC 4.19236 33.81 27 6.81 4CSPUAPD I _ __

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD.Q0999-970046, Rev. 8 Page:33 NPSH Evaluation of Browns Feny RHR and CS pumps CALCULATION SHEET Table 7.6: Unit I NPSH Calculations Case 3B 172F Vapor Pressure Specific Volume Conversion Factor Temp( F)0 (psia) V(ft3Ilb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 172 6.281035863 0.016460423 2.370300872 [Pool Press. (psia 14.4 RHR Pressure (psig) NPSHa (ft)NPSHr (ft) NPSH margin (2f) 1PUMPA 5.05889 31.24 23.7 7.54 3PUMPC 4.81158 30.65 23.7 6.95 RHR Pressure (ps) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.33511 27.15 27 0.15 3CSPUMPC 4.16951 29.13 27 2.13 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:34 NPSH Evaluation of Browns Ferry RHR and CS pumps r' A T fT TT A ITf'%XT CITMTr~V IL-tULAItIU1'JN OflflE L Table 7.7: Unit 1 NPSH Calculations Case 3C 187.3F Vapor Pressure Specific Volume Conversion Factor Temp("F) (psia) I V(ft 3 /lb) psia to feet of head In- n 1E -

IZ<N:4 ------ n < n^<-D---

DU UV.LZDO3OZO4 U.U1 OUqW4Y L.3UYU3OOOUZ 187.3_ 8.822339971 0.01655191 2.383475045 J Pool Press. (psia) 16.91

!11 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (fi) 1PUMPA 5.03185 31.25 23.7 7.55 2PUMP1B I 3PUMF'C 4.78583 30.66 23.7 6.96 4PUMF'D I ;I CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.31809 27.16 27 0.16 2CSPUMIPB _

3CSPUMPC 4.14776 1 29.14 27 2.14 4CSPUMPD I II Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999.970046, Rev. 8 Page:35 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.8: Unit I NPSH Calculations Case 4A 155.4F

- l Vapor Pressure l SpecificVolume Conversion Factor Temp(0 F) (psia) l V(ft 3/lb) I psia to feet of head

- n flf---fA I an an nt.nn nnnn D)u U.U IOU OQL L.0UVU3OUZ 155.4 4.249928506 l 0.016369309 j 2.357180486 j Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 5.09288 35.93 23.7 12.23 2PUMF'B 3PUMPFC 4.84431 35.34 23.7 11.64 4PUMF'D CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA _

2CSPUMPB 4.14542 33.70 27 6.70 3CSPUMlPC 4CSPUMPD 3.37977 31.89 27 4.89 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:36 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.9: Unit I NPSH Calculations Case 4B 172F 1 Vapor Pressure Specific Volume Conversion Factor Temp('F) (psia) V(ft 3ilb) psia to feet of head I- I - I - - - - - - - - -

0.2b6339624 0.016U34992 2.3U9038802 172 _ 6.281035863 0.016460423 2.370300872 [Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (if) NPSHr (ft) NPSH margin (ft) 1PUMF'A 5.06468 31.25 23.7 7.55 2PUMF'B 3PUMPC 4.81738 30.66 23.7 6.96 4PUMF'D CS = Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2CSPUMPB 4.12286 29.02 27 2.02 3CSPUMPC _

4CSPUMPD; 3.36135 27.21 27 0.21 Note 1:See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-QO999-970046, Rev. 8 Page:37 NPSH Evaluadon of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.10: Unit I NPSH Calculations Case 4C 187.3F Vapor Pressure lSpecific Volume Conversion Factor Temp(OF) (psia) V(ft3 /lb) psia to feet of head

_ 1 . . -- - - . - - - -- -

bU U.25bb38bZ4 0.01U604992 2.3UU0t903U82'.

187.3 8.822339971 j 0.01655191 J 2.383475045 . Pool Press. (psia) 1 16.9 ]

RHR Pressure (psig) NPSHa(ft) NPSHr(ft) NPSH margin (ft)

IPUMPA 5.0376 31.26 23.7 7.56 2PUMIB _ _ _l 3PUMF'C 4.79159 30.67 23.7 6.97 4PUMF'D I . I _ _ _ _ I CS - Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUA1PA .

2CSPUA1PB 4.1014 29.03 27 2.03 3CSPUNIPC .

4CSPUMPD 3.34408 27.22 27 0.22 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:38 NPSH Evaluadon of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.11: Unit I NPSH Calculations Case 5A 155.4F Vapor Pressure Specific Volume Conversion Factor Temp('F) I (psia) I V(ft 3/lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 155.41 4.249928506 0.016369309 2.357180486 Pool Press. (psia) 14.7 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A _ ______l 2PUMF'B 4.97132 35.64 23.7 11.94 3PUMPC 4PUMF'D 5.205 36.19 23.7 12.49 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2CSPUMPB 4.13602 33.67 27 6.67 3CSPUMPC 4CSPUMPD 3.37038 31.87 27 4.87 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:39 NPSH Evaluaton of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.12: Unit I NPSH Calculations Case 5B 172F Vapor Pressure I Specific Volume Conversion Factor Temp(0 F) I (psia) V(ft3/lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 172 1 6.281035863 0.016460423 2.370300872 1 Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A 2PUMF'B 4.94375 30.96 23.7 7.26 3PUMF'C 4PUMF'D 5.17623 31.51 23.7 7.81 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2CSPUMPB 4.11355 28.99 27 1.99 3CSPUM4PC 4CSPUMIPD 3.35204 27.19 27 0.19 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:40 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.13: Unit I NPSH Calculations Case 5C 187.3F I Vapor Pressure Specific Volume Conversion Factor Temp(,F) I (psia) V(ft3 /lb) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 187.3 8.822339971 j 0.01655191 j 2.383475045 j Pool Press. (psia) 116.9 RHR Pressure (psig) NPSHa(ft) l NPSHr (fi) NPSH margin ft IPUMIDA:

2PUMPB 4.91731 30.97 23.7 7.27 3PUMF'C 4PUMPD 5.14856 31.52 23.7 7.82 CS = Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1 CSPUMAPA 2CSPUMPB 4.09216 29.01 27 2.01 3CSPURMPC 4CSPUNiPD 3.33485 27.20 27 0.20 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-QO999-970046, Rev. 8 Page:41 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.14: Unit I NPSH Calculations Case 6A 155.4F Vapor Pressure I Specific Volume IConversion Factor Temp(0 F) (psia) l V(ft3 /lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 155.41 4.249928506 1 0.016369309 2.357180486 CPool Press. (psia) 1 14.4 RHR Pressure (psig)L NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA l l_IIl 2PUMPB 4.96227 35.62 23.7 11.92 3PUMPC _ _ _

4PUMF'D 5.19595 36.17 1 23.7 12.47 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (it) 1CSPUMPA 3.37058 31.87 27 4.87 2CSPUMPB 3CSPUhlPC 4.20969 33.85 27 6.85 4CSPUMPD I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-QO999-970046, Rev. 8 Page:42 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.15: Unit I NPSH Calculations Case 6B 172F

_ Vapor Pressure Specific3 Volume Conversion Factor Temp(0 F) (psia) V(ft 1lb) psia to feet of head

-- I AAA A A . 9I AAAAAAAA U.256389624 0.016034992 2.309038802 172 _ 6.281035863 ] 0.016460423 2.370300872 [Pool Press. (psla) 1 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 2PUMPB 4.93475 30.94 23.7 7.24 3PUMPC 4PUMPD 5.16723 31.49 23.7 7.79 CS - Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.3523 27.19 27 0.19 2CSPUMPB 3CSPUMPC 4.18671 29.17 27 2.17 4CSPUMPD_

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:43 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.16: Unit I NPSH Calculations Case 6C 187.3F

_ Vapor Pressure Specific Volume Conversion Factor Temp(°F) (psia) I V(ft 3/lb) psia to feet of head I __ - I - --- - I - - - - -

60o 0.256389b624 U.U1 6U34992 2.309U380U2 187.3_ 8.822339971 j 0.01655191 j 2.383475045 jPool Press. (psia) 16 RHR, Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

IPUMPA _ _ _ _ _ _ _ _

2PUMI'B 4.90836 30.95 23.7 7.25 3PUMPC 4PUMPD 5.13961 31.50 23.7 7.80 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.33516 27.20 27 0.20 2CSPUMPB _ _ _

3CSPUMPC 4.16483 29.18 27 2.18 4CSPUMPD I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:44 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.17: Unit 1 NPSH Calculations Case 7 166F Vapor Pressure I Specific Volume Conversion Factor Temp("F) j (psia) _ V(ft 3/lb) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 166] 5.468938413 j 0.016426501 j 2.365416198 l Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr(f) NPSH margin(f)

I PUMPFA 4.07008 30.75 23.7 7.05 2PUMF'B 4.07366 30.76 23.7 7.06 3PUMPC 3.82229 30.17 23.7 6.47 4PUMF'D 4.30658 31.31 23.7 7.61 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2.73989 27.61 27 0.61 2CSPUMPB 3CSPUM4PC 3.57642 29.59 27 2.59 4CSPUNFPD _ F Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:45 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.18: Unit I NPSH Calculations ATWS 214.6F Vapor Pressure Specific Volume Conversion Factor Ternp(0 F) I (psia) I V(ft31lb) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 214.6j 15.4840075 i 0.016732744 2.409515179 Pool Press. psia); 21 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft PUMPA, 4.64472 24.48 l 23.7 0.78 PUMPB 4.66355 24.53 l 23.7 l 0.83 PUMPC 4.40126 23.90 1 23.7 0.20 PUMPDJ 4.89238 j 25.08 l 23.7 1.38 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:46 NPSH Evaluation of Browns Ferry RHR and CS punps CALCULATION SHEET Table 7.19: Unit I NPSH Calculations ADD-R A 227F Vapor Pressure Specific Volume Conversion Factor Temp('F) (psia)_ V(ft 3 /lb) lI psia to feet of head 60 0.256389624 0.016034992 2.309038802 19.65726995 227 1 196572995 0.016822324 l 2.422414688 Pool Pess Pol Press. (lpsia 24.1w RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMFPA 5.43419 23.93 23.7 i 0.23 2PUMFPB I 3PUMFPC .

4PUM 3D _

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD.Q0999-970046, Rev. 8 Page:47 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.20: Unit I NPSH Calculations App-R B 227F I VaporPressure I SpecificVolume I Conversion Factor

• 'F) I (Psia) I V(ft3Ib) I psia to feet of head b6 0.2b63839624 0.016034992 2.309035BU2 227 l 19.65726995 l 0.016822324 l 2.422414688 Pool Press. (psia) 24.1 RHR Pressure psig) Ha (ft) NPSHr (ft) NPSH margin (ft) 1PUMFPA 2PUMFPB j 5.42775 23.91 23.7 0.21 3PUMPC 4PUM ID I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:48 NPSH Evaluation of Browns Ferry RHR and (S pumps CALCULATION SHEET Table 7.21: Unit 1 NPSH Calculations Aoo-R C 227F Vapor Pressure SpecificVolume Conversion Factor Tern p(0 (psia) 3 V(ftIlb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 227 19.65726995 0.016822324 l 2.422414688 Pool Press. (psia) § 24.1 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 2PUMPB1i 3PUMPC 5.38615 23.81 23.7 0.11

_4PUMPD_ _ I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:49 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.22: Unit 1 NPSH Calculations App-R D 227F Vapor Pressure Specific Volume Conversion Factor Temp( 0 F) (psia) V(ft 3Ilb) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 227 19.65726995 0.016822324 2.422414688 IPool Press. (psia) 24.1 ]

RHR Pressure (psig) NPSHa (ft) NPSHr (ft) [NPSH margin (ft) 1PUMPA 2PUMPB_

3PUMPC 4PUMPD, 5.46124 23.99 23.7 0.29 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:50 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 7.23: Unit I NPSH Calculations Case SBO A-C 197.3F 1 Vapor Pressure Specific Volume Conversion Factor Temp(0 F)I (psia) V(ft3/Ib) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 197.31 10.90873195 0.016615541 2.392637845 [Pool Press. (psia 16 RHiR Pressure (psig) NPSHa(f) NPSHr (ft) NPSH margin (ft) 1PUMPA 5.12276 24.44 23.7 10 .74 2PUMPB_

3PUMPC 4.87763 23.85 23.7 0.15 4PUMP ) I I___

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:51 NPSH Evaluaton of Browns Ferry RHR and (S pumps CALCULATION SHEET Table 7.24: Unit I NPSH Calculations Case SBO B-D 197.3F 1 Vapor Pressure I Specific Volume Conversion Factor Temp(0 F)

I ---

(psia)

I V(ft 31lb) l psia to feet of head I - - - - -

60 U.2b56389624 U.U1b034992 2.3090388U2 197.3 10.908731950 j 0.016615541 j 2.392637845 Pool Press. psia RHR Pr ss r__ _ _ __ ___ __ _ _ _ __ _ _ _ __ __ _ _ _ _ _

RH Prsue(psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMP,\

2PUMPB 4.99429 23.89 23.7 0.19 3PUMPC 4PUMPD 5.22469 24.44 23.7  ; 0.74 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:52 NPSIt Evaluationof Browns Feny RHR and CS pumps CALCULATION SHEET I A I B I C D - I E l F I G I H I I I J 1 TI.W. R. IE.~i# I IJ DQU f-.. 4 A CC WI T _ (pia Vffl- si tf 2 Vapor Pressure Specific Volume Conversion Factor 3 Tomp(OF) _ (psla) V(ftsb) psYa to feet of head A3 1 A _ _ I_ rope__'

n f_ I_ .-.

4 6bU =ptsat tmr(bU) -vfhsat_9/(A4) =C4'144 5 95Fptsats97(A5) _-vftsat_97(A5 I=C5 144 j Pool Press. (psia 14.4 6

7 RHR Pressure (psig_) NPSHa (f) NPSHr (if) NPSHm-argin (M) 8 IPUMPA 0.757222 =(B8-B5+F5)D5 25.9 =C8-D8 9 2PUMPB 0.350229 =(B9-B5+F5)0D5 30 -C9-D9 10 3PUMPC 0.159882 =(B10-35+F5)'05 25.7 =C10-D10 11 4PUMPD 1.02991 =(B111B5+F5)*D5 29 =C11-D11 12 CS Pressure (psig) NPSHa (f) NPSHr (f) NPSH margin (f) 13 ICSPUMPA 1.39134 =(B13-B5+F5)*D5 27 -C13-D13 14 2CSPUMPB 2.33064 =(B14-B5+F5)tD5 27 =C14-D14 15 3CSPUMPC 2.24387 =(B15-B5+F5)*D5 27 =C15-D15 16 4CSPUMPD 1.5537 =(B16-B5+F5)*D5 27 =C16-D16 17 18 This table depicts the calculation of NPSHa (See cells in coumn C under NPSHa heading) 20 All pressures are in psi, which requires the conversion at the desired temperature (Cell D5 ) to obtain NPSHa in feet. The conversion factor (See cell D5) is obtained by 21 multiplying specific volume of water at the desired temperature (See cell C5) by 144.

[NPSHa = [ suction pressure (pressure at pump inlet nodes obtained from Multiflow output files) (See cells in column B under Pressure heading (psig)) - vapor pressure (See 23 cell B5 (psia)) + pool pressure (See cell F5 (psia))] X conversion factor from psia to feet (See D5)

NPSH margin (See cells in column E under NPSH margin heading) is obtained by subtracting NPSHr (values determined from vendor pump curves (Ref. 2.1 and 2.2)) (See 25 column D under NPSHr heading) from NPSHa (See column C under NPSHa heading).

vftsat_97(Temperature) is the specific volume of water at a specific temperature, it is a thermodynamic property of water obtained from STMFUNC excel add-in program 27 (Ref. 2.25) (See cells C4 and C5) ptsat-97(Temperature) is the vapor pressure of water at a specific temperature, it is a thermodynamic property of water obtained from STMFUNC excel add-in program (Ref.

29 2.25) (See cells B4 and 35)

Document: MD-Q0999-970046 Rev.:8 Plant: BFN U1, 2&3 lPage: 53

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date_

I Checked Date_

CALCULATION SHEET TABLE9 Unit 1 LOCA Pump/Flow Combination Pool Temp Strainer Flow Pressure (sgpm) Drop

_ _ __ __ _ __ __ __ _ __ __ __ _ _ __ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (psid )

LOCA IA @95°F Strainer 1 14464.2 2.5 CS Pumps A/B/C/D-3125gpm each Strainer 23 13122.7 2.142 RHR B/D Pumps -11,000 gpm each Strainer 27 13502.9 2.317 Strainer 5 13136.2 2.159 LOCA 1B @155.4°F Strainer 1 14727.2 2.489 CS Pumps A/B/C/D-3125gpm each Strainer 23 12931.8 2.127 RHR A/C Pumps -10,000 gpm each RHR B/D Pumps -11,000 gpm each Strainer 27 13238.2 2.298 Strainer 5 12943.8 2.142 LOCA2A 895°F Strainer 1 14499.5 2.528 CS Pumps A/B/C/D-3125gpm each Strainer 23 13131.8 2.154 RHR A/C Pumps -11,000 gpm each RHR B/D Pumps -10,000 gpm each Strainer 27 13448.4 2.326 Strainer 5 13146.3 2.172 LOCA2B @155.4 0F Strainer 1 13870.5 2.399 CS Pumps A/B/C/D-3125gpm each Strainer 23 13199.5 2.012 RHR A/C Pumps -1 1,000 gpm each Strainer 27 13225.8 1 2.182 RHR B/D Pumps -10,000 gpm each Strainer 5 13090.1 2.038 LOCA3A @155.4 0F Strainer 1 4923.85 0.1765 CS Pumps A/C-3125gpm each Strainer 23 4536.97 0.1043 B/D-0 gpm each 4536_9 0_1043 RHR A/C Pumps-6500 gpm each Strainer 27 4621.3 0.119 B/D-0 gpm each Strainer 5 4773.88 0.1472 LOCA3B @172°F Strainer 1 4896.25 0.1755 CS Pumps A/C-3125gpm each B/D-0 gpm each Strine 23 452.3S0.03 RHR A/C Pumps-6500 gpm each Strainer 27 4596.07 0.1185 B/D-0 gpm each Strainer 5 4747.36 0.1464 LOCA3C @187.3°F Strainer 1 4868.75 0.1745 CS Pumps A/C-3125gpm each Strainer 23 4487.58 0.1033 RHR A/C Pumps-6500 gpm each Strainer 27 4570.78 0.1179 B/D-0 gpm each Strainer 5 4720.89 0.1456 LOCA4A @155.4¶F Strainer I 4861.33 0.1641 CS Pumps B/D-3125gpm each Strainer 23 4616.42 0.1182 A/C-0 gpm each Strainer 27 4695.98 0.1326 RHR A/C Pumps-6500 gpm each Strainer 5 4682.26 0.1301 B/D-0 each LOCA4B @172 0F Strainer 1 4834.22 0.1632 CS Pumps B/D-3125gpm each Strainer 23 4591.07 0.1176 A/C-0 gpm each NPSHa=NPSr .

RHR A/C Pumps-6500 gpm each Strainer 27 4670.16 0.1319 B/D-0 gpm each Strainer 5 4656.55 0.1294

Document: MD-Q0999-970046 I Rev.: 8 lPlant: BFN Ul,2&3 Page:54 =

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared _ Date___

LChecked _Date1 CALCULATION SHEET LOCA Pump/Flow Combination Pool Temp Strainer Flow Pressure (sgpm) Drop (psid)

LOCA4C @187.3°F Strainer 1 4807.19 0.1623 CS Pumps B/D-3125gpm each Strainer 23 4565.69 0.117 A/C-0 gpm each 4644_3 0_1312 RHR A/C Pumps-6500 gpm each Strainer 27 4644.31 0.1312 B/D-0 gpm each Strainer 5 4630.81 0.1288 LOCA 5A @155.4T Strainer 1 4669.87 0.1278 CS Pumps B/D-3125gpm each Strainer 23 4757.96 0.1442 A/C-O gpm each Strainer 27 4868.9 0.1656 RHR B/D Pumps-6500 gpm each Stiner 5 4559.26 0.1081 A/C-O gpm each 4559_2 ______

LOCA 5B @1720F Strainer 1 4644.41 0.1272 CS Pumps B/D-3125gpm each Strainer 23 4731.46 0.1434 A/C-0 gpm each NPSHa=NPSHr Strainer 27 4841.57 0.1643 RHR B/D Pumps-6500 gpm each Strainer 27 4841.57 0.1647 A/C-0 gpm each Strainer 5 4534.56 0.1077 LOCA 5C @187.3 0F Strainer 1 4618.88 0.1266 CS Pumps B/D-3125gpm each Strainer 23 4705.02 0.1426 A/C-O gpm each Srie23 750 0.4 RHR B/D Pumps-6500 gpm each Strainer 27 4814.34 0.1637 A/C-O gpm each Strainer 5 4509.75 0.1071 LOCA 6A @155.4°F Strainer 1 4743.94 0.1415 CS Pumps A/C-3125gpm each Strainer 23 4665.05 0.1269 B/D-0 gpm each Si 26 06 RHR B/DPumps-6500 gpm each Strainer 27 4795.96 0.1514 A/C-O gpm each A__

__ _ __ __each_ Strainer 5 4651.04 0.1244 LOCA 6B @1720F Strainer 1 4717.9 0.1408 CS Pumps A/C-3125gpm each Strainer 23 4639.35 0.1263 B/D-0 gpm each NPSStrainer 23 4769.5 0.16 RHR B/D Pumps-6500 gpm each Strainer 27 4769.18 0.1506 A/C-0 gpm each Strainer 5 4625.57 0.1238 LOCA 6C @187.3°F Strainer 1 4691.82 0.1401 CS Pumps A/C-3125gpm each Strainer 23 4613.64 0.1256 RHR B/D Pumps-6500 gpm each Strainer 27 4742.47 0.1497 A/C-O gpm each Strainer 5 4600.06 0.1231 LOCA 7 @166°F Strainer 1 8339.61 0.8902 CS Pumps A/C-3125gpm each Strainer 23 7506.83 0.6977 B/D-0 gpm each Strainer 27 7849.45 0.7709 RHR AC/BD Pumps-6500 gpm each Strainer 5 7786.11 0.7568

Document: MD-Q0999-970046 IRev.: 8 IPlant: BFN U1, 2&3 Page: 55

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared _ Date____

Checked _ Date_

CALCULATION SHEET ATWS Pump/Flow Combination Pool Temp. Strainer Flow Pressure (sgpm) Drop

._ (psid) 0 ATWS @214.6 F Strainer 1 8911.34 0.183 RHR A/C/B/D Pumps-6500 gpm each Strainer 23 4111.41 0.039 CS Pumps A/C/B/D-0 gpm each Strainer 27 7046.99 0.1145 Strainer 5 4846.26 0.0541 Appendix R Pump/Flow Pool Temp. Strainer Flow Pressure Combination (sgpm) Drop (psid)

App-R A @2270 F Strainer 1 2352.86 0.0128 RHR Pump A-6500 gpm Strainer 23 998.736 0.0023 Strainer 27 1641.59 0.0062 Strainer 5 1202.82 0.0034 App-R B @2270 F Strainer 1 1864.65 0.0081 RHR Pump B-6500 gpm Strainer 23 1202.94 0.0034 Strainer 27 2106.25 0.0103 Strainer 5 1022.17 0.0024 App-R C @2270F Strainer 1 2352.86 0.0128 RHR Pump C-6500 gpm Strainer 23 998.736 0.0023 Strainer 27 1641.59 0.0062 Strainer 5 1202.82 0.0034 App-R D @2270 F Strainer 1 1864.65 0.0081 RHR Pump D-6500 gpm Strainer 23 1202.94 0.0034 Strainer 27 2106.25 0.0103 Strainer 5 1022.17 0.0024 SBO Pump/Flow Combination Pool Temp Strainer Flow Pressuru (sgpm) Drop (psid) _

SBO 1 A/C @197.3T Strainer 1 4754.18 0.0517 RHR Pump A/C-6500 gpm each Strainer 23 2029.55 0.0094 Strainer 27 3320.54 0.0252 Strainer 5 2441.73 0.0136 0

SBO 2 B/D @197.3 F Strainer 1 3775.42 0.0326 RHR Pump B/D-6500 gpm each Strainer 23 2443.47 0.0137 Strainer 27 4250.71 0.0414 Strainer 5 2076.4 0.0099 F-_

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN UI, 2&3 Page: 56

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared _ Date-Checked ___Date_

CALCULATION SHEET TABLE 10 Unit 2 LOCA Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure NlSH (ft) (ft) (psia) margin

_ rt)

LOCA IA @950F RHR/A 33.51 25.7 14.4 7.81 CS Pumps A/B/CID-3125gpm each RHR/B 32.51 29.0 14.4 3 51 RHR A/C Pumps -10,000 gpm each RIHR/C 32.21 26.0 14.4 6 21 RHR B/D Pumps -11,000 gpm each RHR/D 34.07 28.0 14.4 6 07 CS/A 34.88 27.0 14.4 7.88 CS/B 37.06 27.0 14.4 10.06 CS/C .36.86 27.0 14.4 9 86 CS/D 35.26 27.0 14.4 8 26 LOCA IB @155.4 0F RHR/A 30.11 25.7 16.2 4 41 CS Pumps A/B/C/D-3l25gpm each RHR/B 29.12 29.0 16.2 0 12 RHR A/C Pumps -10,000 gpm each RHR B/D Pumps -1 1,000 gpm each RHR/C 28.81 26.0 16.2 2 81 RHR/D 30.67 28.0 16.2 2 67 CS/A 31.49 27.0 16.2 4 49 CS/B 33.68 27.0 16.2 6 68 CS/C 33.47 27.0 16.2 6-47 CS/D 31.88 27.0 16.2 4 88 LOCA 2A @950F RHR/A -32.54 29.0 14.4. 3 54 CS Pumps A/B/C/D-3125gpm each RHR/B 33.60 26.0 14.4 7 60 RHR A/C Pumps -11,000 gpm each RHIR/C 30.97 30.0 14.4 0 97 RHR/D 34.88 24.4 14.4 1 0.48 CS/A 34.77 27.0 14.4 7.77 CS/B 36.95 27.0 14.4 9.95 CS/C 136.75 27.0 14.4 9.75 CS/D 135.14 27.0 14.4 8.14 LOCA2B @155.4 0F RHR/A 131.67 29.0 17.2 2.67 CS Pumps A/B/C/D-3125gpm each RHRJB ' 32.72 26.0 17.2 6.72 RHR A/C Pumps -11,000 gpm each R.HR/C '30.09 30.0 17.2 0.09 RHR B/D Pumps -10,000 gpm each RHRIJD 34.01 24.4 17.2 9.61 CS/A 133.89 27.0 17.2 6.89 CS/B :36.07 27.0 17.2 9.07 CS/C 35.87 27.0 17.2 8.87 CS/D  ;.34.27 27.0 17.2 7.27 LOCA 3A @155.4 0F RHR/A :35.93 23.7 14.4 1,'.23 CS Pumps A/C-3125gpm each RIH-R/C 35.38 23.7 14.4 11.68 B/D..0 gpm each__ _ _ _ _ _ _ _ __ _ _ _

RHR A/C Pumps-6500 gpm each CS/A 31.83 27.0 14.4 4.83 B/D-0 gpm each CS/C 33.81 27.0 14.4 6.81

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN Ul, 2&3 l Page: 57

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared _____Date IChecked _ Date_

CALCULATION SHEET LOCA Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure NBhSH (ft) (ft) (psia) margin

._ (:rt)

LOCA3B @172'F RHR/A 31.25 23.7 14.4 7.55 CS Pumps A/C-3125gpm each RHRC 30.70 23.7 14.4 7.00 B/D-0 gpm each NPSHa=NPSHr FUR A/C Pumps-6500 gpm each CS/A 27.15 27.0 14.4 0.15 B/D-0 gpm each CS/C 29.13 27.0 14.4 2.13 LOCA3C @187.3'F RHR/A 31.26 23.7 16.9 7.56 CS Pumps A/C-3125gpm each, RHRJC 30.71 23.7 16.9 7.01 B/D- 0 gpm each CS/A 27.16 27.0 16.9 0.16 RHR A/C Pumps-6500 gpm each B/D-0 gpm each CS/C 29.14 27.0 16.9 2.14 LOCA 4A @155.4°F RHR/A 35.94 23.7 14.4 12'.24 CS Pumps B/D-3125gpm each RHR/C 35.39 23.7 14.4 11.69 A/C- gpm each CS/B 33.70 27.0 14.4 6.70 RHR A/C Pumps-6500 gpm each CS/D 31.90 27.0 14.4 4.90 B/D-0 each LOCA4B @1720 F RHR/A 31.26 23.7 14.4 7.56 CS Pumps B/D-3125gpm each RHR/C 30.71 23.7 14.4 7.01 A/C-0 gpm each NPSHa=NPSHr RHR A/C Pumps-6500 gpm each CS/B 29.02 27.0 B/D- gpm each CS/D 27.22 27.0 14.4 0.22 LOCA 4C @187.3'F RHR/A 31.27 23.7 16.9 7.57 CS Pumps B/D-3125gpm each RHR/C 30.72 23.7 16.9 7.02 A/C- gpm 6 each CS/B 29.03 27.0 16.9 2.03 RHIR A/C Pumps-6500 gpm each________

B/D-0 gpm each CS/D 27.23 27.0 16.9 0.23 LOCA5A @155.4 0F RHRIB 35.65 23.7 14.4 1V .95 CS Pumps B/D-3125gpm each RHR/D 36.20 23.7 14.4 12.50 A/C-0 gpm each CS/B 33.68 27.0 14.4 6.68 RHR BID Pumps-6500 gpm each CSID 31.87 27.0 14.4 4.87 LOCA 5B @1720F RHR/B 30.97 23.7 14.4 7.27 CS Pumps B/[)-3125gpm each RHR/D 31.52 23.7 14.4 7.82 A/C-0 gpm each NPSHa=NPSHr RHR B/D Pumps-6500 gpm each CS/B 29.00 27.0 14.4 2.00 A/C-0 gpm each CS/D 27.19 27.0 14.4 0.19 LOCA 5C @187.3'F RHR/B 30.98 23.7 16.9 7.28 CS Pumps B/D-3125gpm each RHR/D 31.53 23.7 16.9 7.83 A/C-O gpm each R D .79 .

RHR B/D Pumps-6500 gpm each CS/B 29.01 27.0 16.9 2.01 A/C-0 gpm each CS/D 27.20 27.0 16.9 (1.20 LOCA 6A @155.4'F RHR/B 35.63 23.7 14.4 11.93 CS Pumps A/C-3125gpm each B/D-0 gpm each RHR/D 36.18 23.7 14.4 1:2.48 RHR B/D Pumps-6500 gpm each CS/A 31.87 27.0 14.4 4.87 A/C-0 gpm each

__ __ ____ _ __ _ __ _ __ _ _ CS/C 33.85 27.0 14.4 (8

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN Ul, 2&3 Page: 58 =

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date_

Checked ____Date_

CALCULATION SHEET LOCA Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure NMSH (ft) (ft) (psia) margin (ft)

LOCA 6B @172T RHR/B 30.95 23.7 14.4 7.25 CS Pumps A/C-3125gpm each RHRJD 31.49 23.7 14.4 7.79 B/D-0 gpm each NPSHa=NPSHr CS/A 319 23.7 14.4 7.79 RHR B/D Pumps-6500 gpm each CS/A 27.19 27.0 14.4 0.19 A/C-0 gpm each CS/C 29.17 27.0 14.4 2.17 LOCA 6C @187.3°F RHR/B 30.96 23.7 16.9 7.26 CS Pumps A/C-3125gpm each RHR/D 31.51 23.7 16.9 7.81 B/)D-0 gpm each CS/A 27.20 27.0 16.9 0.20 RHR B/D Pumps-6500 gpm each CS/C 29.18 27.0 16.9 2.18 LOCA 7 @166°F RHR/A 30.81 23.7 14.4 7.11 CS Pumps A/C-3125gpm each RHR/B 30.80 23.7 14.4 7.10 B/D-0 gpm each RHR/C 30.26 23.7 14.4 6.56 RHR A/C/B/D Pumps-6500 gpm each RHR/D 31.35 23.7 14.4 7.65 CS/A 27.61 27.0 14.4 0.61 CS/C 29.59 27.0 14.4 2.59 ATWS Pump/Flow Combination Pool Temp. Pump NPSHa NPSHr Pressure NPSH (ft) (ft) (psia) margin

_ _fIt)

ATWS @214.6°F RHR/A 24.55 23.7 21.0 0.85 RHR ANC/B/D Pumps-6500 gpm each RHR/B 24.57 23.7 21.0 C(.87 CS Pumps A/C/B/D-0 gpm each 2 RHR/C 24.00 23.7 21.0 ('.30 RHR/D 25.11 23.7 21.0 1.41 Appendix R Pump/Flow Pool Temp. Pump NPSHa NPSHr Pressure NPSH Combination (ft) (ft) (psia) margin (ft)

App-R A @227°F A 23.93 23.7 24.1 0.23 RHR Pump A-6500 gpm _  !

App-RB @227°F B 23.91 23.7 24.1 0.21 RHR Pump B-6500 gpm App-R C @227°F C 23.85 23.7 24.1 (.15 RHR Pump C-6500 gpm App-RD @227°F D 23.99 23.7 24.1 0.29 RHR Pump D-6500 gpm SBO Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure "PSH (ft) (ft) (psia) margin I _ _ (ft)

SBO I A/C @197.3°F A 24.45 23.7 16.0 0.75 RHR Pump A/C-6500 gpm each C 23.90 23.7 16.0 0.20 SBO 2 B/D @197.3°F B 23.90 23.7 15.9 0.20 RHR Pump B/D-6500 gpm each D 24.44 23.7 15.9 1.74

MD-QO999-970046, Rev. 8 Page:59 NPSH evaluation of Browns Ferry RHR and CS pumnps CALCULATION SHEET I

Table 11.1- Unit 2 NPSH Calculations Case 1A 95F Vapor Pressure I Specific Volume Conversion Factor Temp(cF) I V(ft3 /lb)

-. 60 (psla) 0.256389624 i

0.016034992 psia to feet of head 2.309038802 95 _ 0.816362332 1 0.016115213 2.320590685 Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

IPUMPA 0.8557 33.51 25.7 7.81 2PUMPB 0.4278 32.51 29 3.51 3PUMPFC 0.2945 32.21 26 6.21 4PUMPD 1.0980 34.07 28 6.07 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 1.4476 34.88 27 7.88 2CSPUMPB 2.3860 r 37.06 27 10.06 3CSPUMPC 2.3008 36.86 27 9.86 4CSPUMPD 1.6090 35.26 27 8.26 Note I :See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:60 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.2: Unit 2 NPSH Calculations Case I B 155.4F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) I V(ft3 llb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 155.4 4.249928506 0.01 6369309 2.357180486 j Pool Press. (psia) 16.2 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 0.8239 30.11 25.7 4.41 2PUMP1B 0.4022 29.12 29 0.12 3PUMPC 0.2707 28.81 26 2.81 4PUMFD 1.0630 30.67 28 2.67 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMAPA 1.4106 31.49 27 4.49 2CSPUMPPB 2.3385 33.68 27 6.68 3CSPUMAPC 2.2503 33.47 27 6.47 4CSPUMAPD 1.5728 31.88 27 4.88 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD.Q0999-970046, Rev. 8 Page:61 NPSH evaluation of Browns Ferry R}IR and CS pumps CALCULATION SHEET Table 11.3: Unit 2 NPSH Calculations Case 2A 95F Vapor Pressure Specific Volume Conversion Factor Temp("F) (psia) I V(ft'/lb) psia to feet of head 60 0.256389624 0.016034992 1 2.309038802 95 _ 0.816362332  ! 0.016115213 j 2.320590685 IPool Press. (psia)T 14-4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 0.4393 32.54 29 3.54 2PUMPB 0.8944 33.60 26 7.60 3PUMi'C -0.2399 30.97 30 0.97 4PUMI'D 1.4481 34.88 24.4 10.48 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 1.3999 34.77 27 7.77 2CSPUMvPB 2.3371 36.95 27 9.95 3CSPUMPC 2.2531 36.75 27 9.75 4CSPUMPD 1.5602 35.14 27 8.14 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:62 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.4: Unit 2 NPSH Calculations Case 2B 95F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) _ V(ft311b) I psia to feet of head 1 60 0.256389624 0.016034992 1 2.309038802 I 155.4 4.249928506 0.016369309 2.357180486 J Pool Press. (psia) 17.2 RHR j Pressure (psig) NPSHa (ft) 9NPSHr(ft) NPSH margin2(ft) 1PUMPFA 0.4860 NS31.67( 29 m 2.67 )

2PUMPB 0.9305 l 32.72 26 6.72 3PUMF'C -0.1834 [ 30-09 30 0.09 4PUMFD l 1.4766 L 34.01 24.4 9.61 CS Pressure (psig) NPSHa (ft) NPSHr (1f) NPSH margin (ft) 1CSPUMPA 1.4290 33.89 27 6.89 2CSPUMPB 2.3531 36.07 27 9.07 3CSPUMPC 2.2687 35.87 27 8.87 4CSPUMPD 1.5875 34.27 27 7.27 Note 1: See Table 8 for steps taken incalculating NPSHa and NPSH rnargin.

MD-Q0999-970046, Rev. 8 Page:63 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.5: Unit 2 NPSH Calculations Case 3A 155.4F Vapor Pressure SpecificVolume Conversion Factor Temp("F) (psia) I V(f 3 IIb) I psia to feet of head 1 60 0.256389624 0.016034992 1 2.309038802 155.4_ 4.249928506 [ 0.016369309 2.357180486 J Pool Press. (psla) l 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 5.0929 35.93 23.7 12.23 2PUMFPB 3PUMPC 4.8594 35.38 23.7 11.68 4PUMFPD CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

ICSPUMPA 3.3527 31.83 27 4.83 2CSPUMPB 3CSPUMPC 4.1924 33.81 27 6.81 4CSPUMPD I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:64 NPSH evaluation of Browns Ferry RIIR and CS pumps CALCULATION SHEET Table 11.6: Unit 2 NPSH Calculations Case 3B 172F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) j V(ft 3ilb) ! psia to feet of head 60 0.256389624 0.016034992 2.309038802 172 1 6.281035863 j 0.016460423 J 2.370300872 [Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) l NPSHr (ft) NPSH margin (ft) 1PUMf'A 5.0647 31.25 23.7 7.55 2PUMPB l l_l_

_ l 3PUMf'C 4.8324 30.70 23.7 7.00 4PUMPD l l _ _ __ _

CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUFAPA 3.3346 27.15 27 0.15 2CSPUMPB1 3CSPUMPC 4.1696 29.13 27 2.13 4CSPUFAPD Note 1: 'See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:65 'NPSH evaluaton of Browns Ferry RHR and CS pumps CALCULATION SHEETj Table 11.7: Unit 2 NPSH Calculations Case 3C 187.3F Vapor Specific Volume Conversion Factor Temp("F) (psia) V(ft 3 /lb) psia to feet of head

- - --------- A -X --- -- . - ---------tC%^

60 u.U1b6054992 z.j3vY03880z 187.3;S 8.822339971 j 0.01655191 2.383475045 [Pool Press. (psia) 16.9 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 5.0376 31.26 23.7 7.56 2PUMPB l I _ _ _.

3PUMi C 4.8065 30.71 23.7 7.01 4PUMPD l_ __ ___l:

CS Pressure (psig) NPSHa (f)t NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.3175 27.16 27, 0.16 2CSPUAPB .

3CSPUMPC 4.1478 29.14 27 2.14 4CSPUMAPD Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:66 NPSH evaluation of Browns Ferry RHR and CS pumips CALCULATION SHEET Table 11.8: Unit 2 NPSH Calculations Case 4A 155.4F Vapor Pressure Specific Volume Conversion Factor Temp("F) (psia) V(ftIlb) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 155.4_ 4.249928506 1 0.016369309 I 2.357180486 1 Pool Press. (psia) 1LB RHR Pressure (psig) NPSHa (ft) l NPSHr(ftJ NPSH margin (ft) 1 PUMPA 5.0991 35.94 23.7 12.24 2PUMF'B r 3PUMF'C 4.8656 35.39 23.7 11.69 4PUMF'D Cs Pressure (psig) NPSHa (ift) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2CSPUMPB 4.1471 33.70 27 6.70 3CSPUMPC 4CSPUMPD 3.38145 31.90 27 4.90 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-97C )046, Rev. 8 Page:67 NPSH evahtatton of Browns Ferry RHR and t'S purnps I

CALCULATION SHEET I 1 Table 11.9: Unit 2 NPSH Calculations Case 4B 172F Vapor Pressure Specific Volume Conversion Factor 3

Temp(c'F) (psia) V(ft Wlb) psla to feet of head

- A - ----- -.

60 U.2b5389624 0.016034992 2.3U9038802 1 72_ 6.281035863 [0.016460423 2.370300872 Pool Press. (psia 14.4 RHR Pressure (psig) NPSHa(ft) NPSHr(ft) NPSH margin(ft) 1PUMPA 5.0708 31.26 23.7 7.56 2PUMPB l l_l_.

3PUMPC 4.8385 30.71 23.7 l 7.01 4PUMF'D l l  ; _ _I CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

ICSPUMPAl i F -I _ _I 2CSPUMPB 4.1245 29.02 27 2.02 3CSPUNIPC 4CSPUMPD 3.36302 27.22 27 0.22 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

i

MD-Q0999-970046, Rev. 8 Page:68 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.10: Unit 2 NPSH Calculations Case 4C 187.3F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) I (psia) V(ft31lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 187.3o 8.822339971 0.01655191 [ 2.383475045 Pool Press. (psia) 16.91 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 5.0437 31.27 23.7 7.57 2PUMPB _ _

3PUMF'C 4.8126 30.72 23.7 7.02 4PUMPD l _ _ _ _ _

CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2CSPUMPB 4.1031 29.03 27 2.03 3CSPUMPC 4CSPUMPD 3.34574 27.23 27 0.23 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:69 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.11: Unit 2 NPSH Calculations Case 5A 155.4F Vapor Pressure Specific Volume Conversion Factor Temp("F) (psia) V(ft3 ilb) psia to feet of head AA - --------- n, - AA- ----

AA A I A- - --- ---

60 U.U1 bU34992 Z.UUi309388U 155.4 4.249928506 j 0.016369309 2.357180486 j Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A __I _rI__

2PUMP1B 4.9760 35.65 23.7 11.95 3PUMF'C 4PUMF'D 5.2064 36.20 23.7 12.50 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1 CSPUMPA 2CSPUMPB 4.1375 33.68 27 6.68 3CSPUAPC 4CSPUMPD 3.37187 31.87 27 4.87 Note 1: ';ee Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:70 NPSH evaluation of Browns Ferry RHR and CS punmps CALCULATION SHEET Table 11.12: Unit 2 NPSH Calculations Case 5B 172F Vapor Pressure Specific Volume Conversion Factor Temp("F) (psia) , V(ft 3Ilb) psia to feet of head 60 0.256389624 T .

0.016034992

..2.309038802_

172_ 6.281035863 0.016460423 2.370300872 [Pool Press. (psa) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

I PUMPA 2PUMPFB 4.9484 30.97 23.7 7.27 3PUMF'C 4PUMPD 5.1777 31.52 23.7 7.82 CS Pressure (psig) NPSHa (ft) NPSHr(ft) NPSH margin (ft) 1 CSPUMPA 2CSPUMPB 4.1150 29.00 27 2.00 3CSPUMPC .

4CSPUMPD 3.35352 27.19 27 0.19 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 71 NPSH evaluation ofBrowns Fenry RHR and CS punps CALCULATION SHEET Table 11.13: Unit 2 NPSH Calculations Case 5C 187.3F Vapor Pressure Specific Volume Conversion Factor Temp(c'F) (psia) V(ft3 /lb) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 187.31 8.822339971 0.01655191 2.383475045 Pool Press. (psia)l 16.

CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

IPUMPA _ _ _ _ _ _

2PUMF'B 4.9220 30.98 T 23.7 l 7.28 3PUMPC _ l l l 4PUMPD 5.1500 31.53 23.7 7.83 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

I CSPUMPA 2CSPUMPB 4.0936 29.01 27 2.01 3CSPUM4PC 4CSPUlMPD 3.33632 27.20 27 0.20 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:72 NPSH evaluaton of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.14: Unit 2 NPSH Calculations Case 6A 155.4F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) V(ft311b) F psia to feet of head

_ J 60 0.256389624 0.016034992 2.309038802 155., = j 4.249928506 _0.016369309_ 2.357180486 I Pool Press. (psia) M. I RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NiSH margin (ft)

IPUMPA 2PUMPB 4.9665 35.63 23.7 11.93 3PUMPC 4PUMPD 5.1969 36.18 23.7 12.48 CS Pressure (psig) NPSHa (Mf) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.3714 31.87 27 4.87 2CSPUIOPB _ _ __ _ _

3CSPUMIPC 4.2111 33.85 27 6.85 4CSPUMPD Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:73 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.15: Unit 2 NPSH Calculations Case 6B 172F Vapor Pressure Specific Volume Conversion Factor Temp("F)

(psia) V(ftlib)

I psia to feet of head 60 1 0.256389624 0.016034992 2.309038802 172_ 6.281035863 0.016460423 [ 2.370300872 j Pool Press. (psia) 14-4 RHR Pressure (psig) NPSHa (ft) NPSHr (if) NPSH margin (ft) 1 PUMPFA _ _ I ._I 2PUMF'B 4.9390 30.95 23.7 7.25 3PUMPC _

4PUMF'D 5.1682 31.49 23.7 7.79 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

ICSPUMPA 3.3531 27.19 27 0.19 2CSPUMPB .-

3CSPUMPC 4.1881 29.17 27 2.17 4CSPUAPD __

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:74 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.16: Unit 2 NPSH Calculations Case 6C 187.3F Vapor Pressure Specific Volume Conversion Factor Temp("F) (psia) V(ft 3 /lb) psia to feet of head n-nf n-n-n-- n nflAf-f------- - ---- o bUD U.LZ3a0U0/Z4 I U.UI bVU54YZ Z.-3VJUYUOUz 187.3_ 8.822339971 0.01655191 J 2.383475045 IPool Press. (psia) 16.9 RHR Pressure (psig) NPSHa ft) NPSHr (ft) NPSH margin (ft)

IPUMPA l _ _ ___ I 2PUMPB 4.9126 30.96 23.7 7.26 3PUMPC 4PUMPD 5.1406 31.51 23.7 7.81 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.3360 27.20 27 0.20 2CSPUMAPB 3CSPUMPC 4.1662 29.18 27 2.18 4CSPUMRPD I - -_

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:75 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.17: Unit 2 NPSH Calculations Case 7 166F Vapor Pressure Specific Volume Conversion Factor Temp(c'F)

(psia) I V(ft 3 /lb) I _ psia to feet of head 60 0.256389624 0.016034992 2.309038802 166 5.468938413 0.016426501 2.365416198 Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr(ft) NPSH margin (ft) 1PUMPA 4.0924 30.81 23.7 7.11 2PUMF'B 4.0911 30.80 23.7 7.10 3PUMF'C 3.8597 30.26 23.7 6.56 4PUMF'D 4.3208 31.35 23.7 7.65 Cs Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2.7421 27.61 27 0.61 2CSPUAPB 3CSPUAAPC 3.5792 29.59 27 2.59 4CSPUAPD I I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:76 NPSH evaluation of Browns Ferry RHR and CS pumnps CALCULATION SHEET Table 11.18: Unit 2 NPSH Calculations ATWS 214.6F 1

_ Vapor Pressure Specific Volume Conversion Factor Temp(AF) (psia) V(ft /Ib) psia to feet of head bU o.U16034U92 Z.5U9JU03UZ 2146 15.4840075 l 0.016732744 2.409515179 IPool Press. psia 21 ]

RHR [ Pressure (psig) NPSHa (ft) NPSHr (ft) [NPSH margin (ft)

P4MPA 4.6737 24.55 1 23.7 0 0.85 PUMPB_ 4.6813 24.571 L 23.7 0.87 PUMPC 4.4451 24.00 23.7 0.30 PUMPD 4.9070 25.11 23.7 1.41 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:77 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.19: Unit 2 NPSH Calculations App-R A 227F Temp("F) 1 Vapor Pressure Specific Volume Conversion Factor (psia) V(ft 3 /lb) I psia to feet of head

- n t..,anaA n a na aannan Dv U.LDO0001ZO4 U.U I UDYquZ Z.0UVU3OOUZ z7 = 19.65726995 j 0.016822324 2.422414688 [Pool Press. (psia) 24.

RHR 1PUMPA 2PUMPFB Pressure (psig) 5.4375 I

I NPSHa (ft) 23.93 NPSHr (ft) 23.7 NPSH margin (ft) 0.23 3PUMPC 4PUMF'D 1I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:78 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.20: Unit 2 NPSH Calculations App-R B 227F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psla) l V(ft 3/lb) psia to feet of head

- -- - q 9 q-60 0.256389624 0.016034992 2.309038802 227 19.65726995 J 0.016822324 2.422414688 Pool Press. (psia) 24.1 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 2PUMPB 5.4287 23.91 23.7 0.21 I PUMPA 5__ 4287 __ 23___91 _ 23___ _7 __ 0___21 __

3PUMPC 4PUMPD_

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:79 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.21: Unit 2 NPSH Calculations Aon-R C 227F 1 Vapor Pressure SpecificVolume Conversion Factor Ternp(°F) (psia) V(ft3ilb) psia to feet of head I Ao e-

-- an n A- -^A-- ----------

I 6U U. bjt$Ubz4 U.U1 bUJS4!9 Z .;309038802 2271 19.65726995 0.016822324 2.422414688 [Pool Press. (psia) 24.1l RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1IPUMPA 2PUMPB1 3PUMPC 5.4042 23.85 23.7 0.15 4PUMPD[ I I___________

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:80 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.22: Unit 2 NPSH Calculations Aon-R D 227F Vapor Pressure Specific Volume Conversion Factor Temp( F)I (psia) V(ft3/lb) I psia to feet of head

_- _ I .

60 0.256389624 0.016034992 2.309038802 227J 19.65726995 0.016822324 2.422414688 IPool Press. psla) 24.1 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 2PUMPB 3PUMPC 4PUMPD 5.4591 a 23.99 a 23.7 L 0.29 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:81 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.23: Unit 2 NPSH Calculations SBO A-C 197.3F Vapor Pressure 1 Specific Volume Conversion Factor Temp(0 F)I (psia) V(ftfIIb) psia to feet of head

_ - I _

60 0.256389624 0.016034992 2.309038802 197.3 10.90873195 j 0.016615541 2.392637845 [Pool Press. (psia) 16 RHR__ Pressure (psig) NPSHa(f) NPSHr (ft) [NPSH margin (ft) 1PUMPA 5.1289 24.45 23.7 0 0.75 2PUMP13 l } I 3PUMPC 4.8986 23.90 23.7 0.20 4PUMP_)_ I__l_

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page:82 NPSH evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 11.24: Unit 2 NPSH Calculations SBO B-D 197.3F Vapor Pressure Specific Volume Conversion Factor Temp( 0 F) (psia) V(ft 3/lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 197.3 10.90873195 j 0.016615541 2.392637845 Pool Press. (psia) 15-9 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1IPUMPA 2PUMPB 4.9975 23.90 23.7 0.20 3PUMPC 4PUMPD 5.2248 j 24.44 j 23.7 0.74 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

Document: MD-Q0999-970046 IRev.: 8 lPlant: BFN Ul, 2&3 Page: 83

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date_

Checked _ Date-CALCULATION SHEET TABLE 12 Unit 2 LOCA Pump/Flow Combination Pool Temp Strainer Flow Pressure (sgpm) Drop (psid)

LOCA IA @950 F Strainer 1 14272.5 2.451 CS Pumps A/B/C/D-3125gpm each Strainer 23 13418.6 2.089 RHR A/C Pumps -10,000 gpm each RHR B/D Pumps -1 1,000 gpm each Strainer 27 13444.5 2.289 Strainer 5 13090.4 2.104 LOCA 1B @155.4'F Strainer 1 14131 2.434 CS Pumps A/B/C/D-3125gpm each Strainer 23 12895.5 2.083 RHR A/C Pumps -10,000 gpm each RHR B/D Pumps -11,000 gpm each Strainer 27 13290.3 2.276 Strainer 5 13069.3 2.099 LOCA 2A @95 0F Strainer 1 14428.6 2.498 CS Pumps A/B/C/D-3125gpm each Strainer 23 13122 2.142 RHR A/C Pumps -1,1000 gpm each Strainer 27 13545 2.336 RHR B/D Pumps -10,000 gpm each Staier27 1345 2.3 Strainer 5 13130.4 2.152 LOCA2B @155.4 0 F Strainer 1 13734 2.426 CS Pumps A/B/C/D-3125gpm each Strainer 23 13208 2.057 RHR A/C Pumps -11,000 gpm each Strainer 27 13233 2.25 RHR B/D Pumps -10,000 gpm each Strainer 5 13210.6 2.072 LOCA 3A @155.40F Strainer 1 4906.49 0.173 CS Pumps A/C-3125gpm each Strainer 23 4554.8 0.1073 B/D-0 gpm each RHR A/C Pumps-6500 gpm each Strainer 27 4642.08 0.1228 B/D-0 gpm each Strainer 5 4752.64 0.1432 LOCA 3B @ 172"F Strainer 1 4878.95 0.1721 CS Pumps A/C-3125gpm each B/D-0 gpm each NPSHa=NPSr Strainer 23 4530.07 0.1069 RHR A/C Pumps-6500 gpm each Strainer 27 4616.77 0.1222 B/D-0 gpm each Strainer 5 4726.21 0.1424 LOCA3C @187.3 0F Strainer 1 4851.52 0.1711 CS Pumps A/C-3125gpm each Strainer 23 4505.26 0.1064 B/D-0 gpm each Srie 7 49.9 011 RHR A/C Pumps-6500 gpm each Strainer 27 4591.39 0.1216 B/D-0 gpm each Strainer 5 4699.83 0.1416 LOCA 4A @155.4A Strainer 1 4834.86 0.159 CS Pumps B/D-3125gpm each Strainer 23 4649.62 0.1241 A/C-0 gpm each Strainer 27 4730.9 0.1391 RHR A/C Pumps-6500 gpm each .

B/D-0 each Strainer 5 4640.62 0.1225 LOCA4B @1720F Strainer 1 4807.85 0.1581 CS Pumps B/D-3125gpm each Strainer 23 4624.13 0.1235 A/C-0 gpm each NPSHa=NPSHr RHR A/C Pumps-6500 gpm each Strainer 27 4704.94 0.1384 B/D-0 gpm each Strainer 5 4615.09 0.1219

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN Ul, 2&3 Page: 84

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date___-

Checked Date_

CALCULATION SHEET LOCA Pump/Flow Combination Pool Temp Strainer Flow Pressure (sgpm) Drop (psid)

LOCA 4C @187.3¶F Strainer 1 4780.92 0.1572 CS Pumps B/D-3125gpm each Strainer 23 4598.6 0.1229 A/C-0Ogpm eachI RHR A/C Pumps-6500 gpm each Strainer 27 4678.94 0.1377 B/D-0 gpm each Strainer 5 4589.54 0.1212 LOCA5A @155.4 0F Strainer 1 4641.86 0.1227 CS Pumps B/D-3125gpm each Strainer 23 4785.4 0.1494 A/C-0 gpm each Strainer 27 4901.46 0.172 RHR B/D Pumps-6500 gpm each Strainer 5 4527.29 0.1026 A/C-O gpm each LOCA5B @172¶F Strainer 1 4616.51 0.1221 CS Pumps B/D-3125gpm each Strainer 23 4758.78 0.1486 A/C-0 gpm each NS2Ha=NPStr RHR B/D Pumps-6500 gpm each Strainer 27 4873.98 0.1711 A/C-0 gpm each Strainer 5 4502.73 0.1022 LOCA5C @187.3 0F Strainer 1 4591.11 0.1215 CS Pumps B/D-3125gpm each Strainer 23 4732.21 0.1478 A/C-0 gpm each I______

RHR BID Pumps-6500 gpm each Strainer 27 4846.6 0.1701 A/C-O gpm each____ ___ ___

Strainer 5 4478.08 0.1017 LOCA6A @155.4A Strainer 1 4723.27 0.1377 B/D-0 gpm each Strainer 23 4678.05 0.1293 RHR B/D Pumps-6500 gpm each Strainer 27 4823.48 0.1567 A/C-O gpm each

________echStrainer 5 4631.2 0.1208 LOCA 6B @172T Strainer I 4697.33 0.137 CS Pumps A/C-3125gpm each Strainer 23 4652.29 0.1287 B/D-0 gpm each NPS1la=NPSHr RHR B/D Pumps-6500 gpm each Strainer 27 4796.54 0.1559 A/C-O gpm each Strainer 5 4605.83 0.1202 LOCA 6C @187.3 0F Strainer 1 4671.37 0.1363 CS Pumps A/C-3125gpm each Strainer 23 4626.52 0.128 B/D-0 gpm each Strainer 27 4769.68 0.155 RHR B/D Pumps-6500 gpm each A/C-O gpm each Strainer 5 4580.42 0.1196 LOCA 7 @1660F Strainer 1 8281.33 0.8749 CS Pumps A/C-3125gpm each Strainer 23 7547.79 0.7061 B/D-0 gpm each Strainer 27 7931.33 0.7895 RHR A/C/B/D Pumps-6500 gpm each Strainer5 7721.55 0.7428

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN Ul, 2&3 Page: 85

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date-Checked --- _Date_

CALCULATION SHEET ATWS Pump/Flow Combination Pool Temp. Strainer Flow Pressure (sgpm) Drop (psid)

ATWS @214.6 0 F Strainer 1 8741.02 0.1761 RHR A/C/B/D Pumps-6500 gpm each Strainer 23 4051.77 0.0378 CS Pumps A/C/B/D-0 gpm each Strainer 27 7351.21 0.1246 Strainer 5 4771.99 0.0525 Appendix R Pump/Flow Pool Temp. Strainer Flow Pressure Combination (sgpm) Drop

__ _ __ __ __ _ __ _ _ _ _ _ _ _ _ p sid)

App-RA @227°F Strainer 1 2331.73 0.0126 RHR Pump A-6500 gpm Strainer 23 984.885 0.0022 Strainer 27 1691.65 0.0066 Strainer 5 1187.74 0.0033 App-R B @227 0F Strainer 1 1818.73 0.0077 RHIR Pump B-6500 gpm ___

Strainer 23 1178.54 0.0032 Strainer 27 2198.02 0.0112 Strainer 5 1000.71 0.0023 App-R C @2270 F Strainer 1 2331.73 0.0126 RHR Pump C-6500 gpm Strainer 23 984.885 0.0022 Strainer 27 1691.65 0.0066 Strainer 5 1187.74 0.0033 App-R D @227°F Strainer 1 1818.73 0.0077 RHR Pump D-6500 gpm Strainer 23 1178.54 0.0032 Strainer 27 2198.02 0.0112 Strainer 5 1000.71 0.0023 SBO Pump/Flow Combination Pool Temp Strainer Flow Pressure (sgpm) Drop

_ _ __ __ _ __ _ _ _ _ _ _ _ (psid )

SBO 1 A/C @197.3°F Strainer 1 4710.92 0.0508 RHR Pump A/Cb500 gpm each Strainer 23 2001.19 0.0092 Strainer 27 3423.1 0.0268 Strainer 5 2410.79 0.0133 SBO 2 B/D @197.3°F Strainer 1 3681.88 0.031 RHR Pump B/D-6500 gpm each Strainer 23 2393.53 0.0131 Strainer 27 4437.98 0.0451 StrainerS5 2032.61 0.0095

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN U1, 2&3 lPage: 86

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared _ Date_

Checked Date_

CALCULATION SHEET TABLE 13 Unit 3 LOCA Pump/Flow Combination Pool Temp. Pump NPSHa NPSHr Pressure NIPSH (ft) (ft) (psia) margin rt)

(

LOCA 1A @95 0 F RHRIA 33.38 23.9 14.4 9.48 CS Pumps A/B/C/D-3125gpm each RHRIB 32.40 27.0 14.4 5.40 RHR A/C Pumps -10,000 gpm each RHRJjC 31.98 23.7 14.4 8.28 RHR B/D Pumps -11,000 gpm each RHR/D 33.96 30.0 14.4 3.96 CS/A 34.86 27.0 14.4 7.86 CS/B 37.02 27.0 14.4 10.02 CS/C 36.84 27.0 14.4 9.84

_ CS/D 35.22 27.0 14.4 8.22 LOCA 1B @155.4-F RHR/A 29.65 23.9 16.0 5.75 CS Pumps AJB/C/D-3125gpm each RHR/B 28.67 27.0 16.0 1.67 RHR A/C Pumps -10,000 gpm each RHR/C 28.25 23.7 16.0 4.55 RHR B/D Pumps -11,000 gpm each RHRID 30.23 30.0 16.0 0.23 CS/A 31.12 27.0 16.0 4.12 CS/B 33.29 27.0 16.0 6.29 CS/C 33.10 27.0 16.0 6.10 CS/D 31.48 27.0 16.0 4.48 LOCA 2A @950F RHR/A 32.61 27.0 14.4 5.61 CS Pumps A/B/C/D-3125gpm each RHR/B 33.71 24.8 14.4 8.91 RHR A/C Pumps -11,000 gpm each RHR/C 30.91 27.0 14.4 3.91 RHR B/D Pumps -10,000 gpm each R 35.00 26.0 14.4 9.00 CS/A 34.99 27.0 14.4 7.99 CS/B 37.17 27.0 14.4 10.17 CS/C 36.97 27.0 14.4 9.97 CS/D 35.37 27.0 14.4 8.37 LOCA2B @155.4"F RHR/A 28.79 27.0 16.08 1.79 CS Pumps A/B/C/D-3125gpm each RHR/B 29.87 24.8 16.08 5.07 RHR A/C Pumps -11,000 gpm each RPHR/C 27.09 27.0 16.08 0.09 RHR B/D Pumps -10,000 gpm each RHER/D 31.16 26.0 16.08 5.16 CS/A 31.12 27.0 16.08 4.12 CS/B 33.28 27.0 16.08 6.28 CS/C 33.09 27.0 16.08 6.09 CS/D 31.48 27.0 16.08 4.48 LOCA 3A @155.4 0F RHR/A 35.93 23.7 14.4 12.23 CS Pumps A/C-3125gpm each RIHR/C 35.33 23.7 14.4 11.63 RHRA/CPumps-6500 gpm each CS/A 31.84 27.0 14.4 4. B4 B/D-0 gpm each CS/C 33.82 27.0 14.4 6.32 LOCA3B @172 0F RHRJA 31.25 23.7 14.4 7.55 CS Pumps A/C-3125gpm each RHR/C 30.65 23.7 14.4 6:95 B/D-0 gpm each NPSHa-NPSHr .

RHR A/C Pumps-6500 gpm each CS/A 27.16 27.0 14.4 0.16 B/D-0 gpm each CS/C 29.14 27.0 14.4 2.14

LOCA Pump/Flow Combination Pool Temp. Pump NPSHa NPSHr Pressure NF SH (ft) (ft) (psia) ma rgin (11)

LOCA3C @187.3F RHR/A 31.26 23.7 16.9 7.56 CS Pumps A/C-3125gpm each RHRIC 30.66 23.7 16.9 6.96 B/D-0 gpm. eachCSA 217 70 169.7 RHR A/C Pumps-6500 gpm each CS/A 27.17 27.0 16.9 0.17 B/D-O gpm each CS/C 29.15 27.0 16.9 2.15 LOCA4A @155.40 F RHR/A 35.94 23.7 14.4 12.24 CS Pumps B/D-3125gpm each RHRJC 35.35 23.7 14.4 11.65 A/C-0Ogpm eachCSB 370 20 144 6O RHR A/C Pumps-6500 gpm each CS/B 33.70 27.0 14.4 6.70 B/D-0 gpm each CS/D 31.89 27.0 14.4 4.89 LOCA4B @172¶F RHR/A 31.26 23.7 14.4 7.56 CS Pumps B/D-3125gpm each RHR/C 30.67 23.7 14.4 6.97 A/C-O gpm each NPSHa=NPSHr CS/B 29.02 27.0 14.4 2.02 B/D- p0 gpm each CS/D 27.21 27.0 14.4 0.21 LOCA4C @187.30 F RHR/A 31.27 23.7 16.9 7.57 CS Pumps B/D-3125gpm each RHR/C 30.68 23.7 16.9 6.98 A/C-O gpm each RHR A/C Pumps-6500 gpm each CS/B 29.03 27.0 16.9 2.03 B/D-0 gpm each CS/D 27.22 27.0 16.9 0.2 LOCA5A @155.4¶F RHR/B 35.65 23.7 14.4 11.95 CS Pumps B/D-3125gpm each RHR/D 36.19 23.7 14.4 12.49 A/C-O gpm each RHR B/D Pumps-6500 gpm each CS/B 33.68 27.0 14.4 6.68 A/C-O gpm each CS/D 31.87 27.0 14.4 4.87 LOCA5B @172cF RHRJB 30.97 23.7 14.4 7.27 CS Pumps B/D-3125gpm each A/C-0 gpm each NPSHa=NPSHr RHRID 31.51 23.7 14.4 7.81 RHR B/D Pumps-6500 gpm each CS/B 29.00 27.0 14.4 2.00 A/C-O gpm each CS/D 27.19 27.0 14.4 0.19 LOCA5C @187.3w RHRIB 30.98 23.7 16.9 7.28 CS Pumps B/D-3125gpm each RHR/D 31.52 23.7 16.9 7.82 A/C-0 gpm each RHR B/D Pumps-6500 gpm each CS/B 29.01 27.0 16.9 2.01 A/C-0 gpm each CS/D 27.20 27.0 16.9 0.20 LOCA6A @155.4 0 F RHR/B 35.63 23.7 14.4 11.93 CS Pumps A/C-3025gpm each RHRaD 36.17 23.7 14.4 12.47 B/D-0 gpm each ___ ______

RHR B/D Pumps-6500 gpm each CS/A 31.88 27.0 14.4 4.88 A/C-0 gpm each CS/C 33.86 27.0 14.4 6.86 LOCA6B @1720 F RHR/B 30.95 23.7 14.4 7.25 CS Pumps A/C-31I25gpm. each B/D-0gpmeach NPSHa=NPsHr RHRD 31.49 23.7! 14.4 7.79 RHR B/D Pumps-6500 gpm each CS/A 27.20 27.0 14.4 0.20 A/C-0 gpm each CS/C 29.18 27.0 14.4 2.18

LOCA Pump/Flow Combination Pool Temp. Pump NPSHa NPSHr Pressure NFSH (ft) (ft) (psia) ma rgin LOCA 6C @187.30F RHR/B 30.96 23.7 16.9 7.26 CS Pumps A/C-3125gpm each RHR/D 31.50 23.7 16.9 7.80 RHR B/D Pumps-6500 gpm each CS/A 27.21 27.0 16.9 0.21 A/C-O gpm each CS/C 29.19 27.0 16.9 2.19 LOCA 7 @1660 F RHR/A 30.77 23.7 14.4 7.07 CS Pumps A/C-3125gpm each RHRJB 30.78 23.7 14.4 7.08 B/D-0 gpm each RRC 3.8 2. 44 64 RHR A/C/B/D Pumps-6500 gpm each RHRJC 30.18 23.7 14.4 6.48 RHRID 31.32 23.7 14.4 7.62 CS/A 27.63 27.0 14.4 0.63 CS/C 29.61 27.0 14.4 2.61 ATWS Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure NIPSH (ft) (1t) (psia) ma rgin (lt)

ATWS @214.6°F RHR/A 24.52 23.7 21.0 0.82 RHR A/C/B/D Pumps-6500 gpm each CS Pumps A/C/B/D-0 gpm each RHR/B 24.55 23.7 21.0 0.85 RHR/C 23.93 23.7 21.0 0.23 RHR/D 25.09 23.7 21.0 1.39 Appendix R Pump/Flow Pool Temp Pump NPSHa NPSHr Pressure NISH Combination (ft) (ft) (psia) margin (Irt)

App-RA @227"F A 23.93 23.7 24.1 0.23 RHR Pump A-6500 gpm App-R B @227F B 23.90 23.7 24.1 0.20 RHR Pump B-6500 gpm _ _ _

App-R C @227°F C 23.81 23.7 24.1 0.11 RHR Pump C-6500 gpm _ -

App-RD @227 0F D 23.98 23.7 24.1 0.28 RHR Pump D-6500 gpm _

SBO Pump/Flow Combination Pool Temp Pump NPSHa NPSHr Pressure NI'SH (ft) (ft) (psia) margin SBO 1 A/C @197.3°F A 24.45 23.7 16.0 0.75 RHR Pump A/C-6500 gpm each ,

C 23.85 23.7 16.0 0.15 SBO 2 B/D @197.3°F B 23.85 23.7 15.9 0.15 RHR Pump B/D-6500 gpm each .

D 24.40 23.7 15.9 0.70

MD-Q0999-5970046, Rev. 8 Page: 89 NPSH Evaluation of Browns Ferry RHR and CS puMps CALCULATION SHEET Table 14.1: Unit 3 NPSH Calculations Case 1A 95F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) V(ft 3/lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 95 [ 0.816362332 0.016115213 ! 2.320590685 j Pool Press. (psia) 14.4s I I.

RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (fi) 1PUMPA 0.80107 33.38 23.9 9.48 2PUMPB 0.378837 32.40 27 5.40 3PUMPC 0.196499 31.98 23.7 8.28 4PUMPD 1.04947 33.96 30 3.96 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (f) 1CSPUMPA 1.43727 34.86 27 7.86 2CSPUMPB 2.3699 37.02 27 10.02 3CSPUMPC 2.29033 36.84 27 9.84 4CSPUMPD 1.59296 35.22 27 8.22 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 90 NPSH Evaluation of Browns Feny RHR and CS punrs CALCULATION SHEET Table 14.2: Unit 3 NPSH Calculations Case 1B 155.4F Vapor Pressure Specific Volume Conversion Factor Temp(°F) (psla) I V(ft 3/lb) I psla to feet of head 60 0.256389624 0.016034992 2.309038802 155.4 1 4.249928506 0.016369309 2.357180486 Pool Press. (psia) 16 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 0.828492 29.65 23.9 5.75 2PUMPB 0.414702 28.67 27 1.67 3PUMPC 0.232564 28.25 23.7 4.55 4PUMPD 1.07595 30.23 30 0.23 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 1.45158 31.12 27 4.12 2CSPUMPB 2.37214 33.29 27 6.29 3CSPUMPC 2.29119 33.10 27 6.10 4CSPUMPD 1.60649 31.48 27 4.48 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 91 NPSH Evaluadon of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.3: Unit 3 NPSH Calculations Case 2A 95F Vapor Pressure SpecificVolume Conversion Factor Temp('F) (psia) I V(ft 3/lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 195 1 0.816362332 0.016115213 2.320590685 IPool Press. (psia 144 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 0.469288 32.61 27 5.61 2PUMF'B 0.944092 33.71 24.8 8.91 3PUMF'C -0.26239 30.91 27 3.91 4PUMF'D 1.49817 35.00 26 9.00 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 1.49582 34.99 27 7.99 2CSPUMPB 2.43307 37.17 27 10.17 3CSPUMPC 2.34888 36.97 27 9.97 4CSPUMPD 1.65613 35.37 27 8.37 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 92 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.4: Unit 3 NPSH Calculations Case 2B 155.4F

_ Vapor Pressure Specific Volume Conversion Factor Temp('F) (psia) V(ft 3/lb) psia to feet of head flfl- d - - n-e n -nen I - fAn - - no- A QIJ U.ZLO3OZUD4 U.U1 OU3QWz Z.0UwU3OOUL 155.4= 4.249928506 j 0.016369309 2.357180486 Pool Press. psia 16.08l RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1 PUMF'A 0.383607 28.79 27 1.79 2PUMF'B 0.84087 29.87 24.8 5.07 3PUMF'C -0.33748 27.09 27 0.09 4PUMF'D 1.3873 31.16 26 5.16 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1 CSPUMIPA 1.37023 31.12 27 4.12 2CSPUNIPB 2.28972 33.28 27 6.28 3CSPUMPC 2.20984 33.09 27 6.09 4CSPUMPD 1.52407 31.48 27 4.48 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 93 NPSH Evaluation of Brwns Ferry RHR and (S pumps CALCULATION SHEET Table 14.5: Unit 3 NPSH Calculations Case 3A 155.4F Vapor Pressure Specific Volume Conversion Factor Temp('F) (psia) V(ft31lb) I psia to feet of head

-~ .

60 0.256389624 0.016034992 2.309038802 155.4 ] 4.249928506 j 0.016369309 3 2.357180486 IPool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 5.09137 35.93 23.7 12.23 2PUMF'B 3PUMF'C 4.83981 35.33 23.7 11.63 4PUMF'D CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.35622 31.84 27 4.84 2CSPUMPB1 3CSPUMPC 4.19583 33.82 27 6.82 4CSPUMPD _

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-S70046, Rev. 8 Page: 94 i NPSII Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.6: Unit 3 NPSH Calculations Case 3B 172F Vapor Pressure Specific Volume Conversion liFactor Temp(*F) (psia) V(ft 3/lb) psia to feet of head I I 60 0.256389624 0.016034992 2.309038802 I 172 t 6.281035863 0.016460423 2.370300872 Pool Press. psia 14.4 II I RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A 5.06319 31.25 23.7 7.55 2PUMPB ii_ _

3PUMF'C 4.81293 30.65 23.71 6.95 4PUMPD HI CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

ICSPUMPA 3.33804 27.16 27 i 0.16 2CSPUMPB 1 i 3CSPUMPC 4.17294 29.14 27 _ 2.14 4CSPUMPD I I Nk m Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH rniargin.

MD-Q0999-S,70046, Rev. 8 Page: 95 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.7: Unit 3 NPSH Calculations Case 3C 187.3F Vapor Pressure Specific Volume Conversion Factor Temp( F) (psia) I V(fteIlb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 187.3 _ 8.822339971 0.01655191 2.383475045 Pool Press. (psia) 16.9 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 5.03611 31.26 23.7 7.56 2PUMP1B 3PUMPC 4.78719 30.66 23.7 6.96 4PUMPD _

CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

ICSPUMPA 3.321 27.17 27 0.17 2CSPUMPB 3CSPUMPC 4.15116 29.15 27 2.15 4CSPUMPD_

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 96 NPSH Evaluation of Browns Ferry RHR and (S pumps CALCULATION SHEET Table 14.8: Unit 3 NPSH Calculations Case 4A 155.4F Vapor PressureI Specific Volume Conversion Factor Temp( F)(psa) V(ft3llb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 155.4 4.249928506 0.016369309 2.357180486 (Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMFPA 5.0976 35.94 23.7 12.24 2PUMF'B l 3PUMFPC 4.84605 35.35 23.7 11.65 4PUMFPD l CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUPA 2CSPUNMPB 4.14542 33.70 27 6.70 3CSPUMIPC 4CSPUMPD 3.37977 31.89 27 4.89 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999--970046, Rev. 8 Page: 97 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.9: Unit 3 NPSH Calculations Case 4B 172F Vapor Pressure Specific Volume I Conversion Factor Temp(0 F) (psia) l V(ft3Ilb) l psia to feet of head 60 0.256389624 0.016034992 2.309038802 I-4 172 6.281035863 I 0.016460423 2.370300872 Pool Press. (psia) -

14.41 RHR Pressure (psig) NPSHa (ft) NPSHr(ft) NPSH margin (ft) 1 PUMPA 5.06937 31.26 23.7 7.56 2PUMPB _

3PUMPC 4.81912 30.67 23.7 6.97 4PUMPD _

CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2CSPUMPB 4.12286 29.02 27 2.02 3CSPUMPC 4CSPUMPD 3.36135 27.21 27 0.21 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 98 NPSH Evaluaiionof Brwns Ferry RHR and CS pumps CALCULATION SHEET Table 14.10: Unit 3 NPSH Calculations Case 4C 187.3F 7 Vapor Pressure Specific Volume Conversion Factor Temp(CF) (psia) l V(ft3 /lb) psia to feet of head

-- - --------- . A-F Aj bu U.256386Z4 U.01 bu0492 Z.3U0U90385U2 187.3 = 8.822339971 l 0.01655191 2.383475045 [Pool Press. (psia) 16.9 RHR Pressure psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A 5.04225 31.27 23.7 7.57 2PUMF'B 3PUMPC 4.79333 30.68 23.7 6.98 4PUMPD CS Pressure (psig) NPSHa (ft) NPSHr(ft) NPSH margin (ft) 1CSPUMPA 2CSPUMPB 4.1014 29.03 27 2.03 3CSPUMPC _ _

4CSPUMPD 3.34409 27.22 27 0.22 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 99 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.11: Unit 3 NPSH Calculations Case 5A 155.4F J Vapor Pressure Specific Volume Conversion Factor Temp( 0F) (psia) V(ft 311b) psia to feet of head 60 0.256389624 0.016034992 2.309038802 155.4 = 4.249928506 J 0.016369309 j 2.357180486 Pool Press. (psia) 144 RHR Pressure psig) NPSHa (ft) NPSHr (f) NPSH margin (ft) 1PUMPA _________

2PUMF'B 4.97346 35.65 23.7 11.95 3PUMPC _

4PUMPD 5.20404 36.19 23.7 12.49 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) lCSPUMPA 2CSPUMPB 4.13718 33.68 27 6.68 3CSPUMPC 4CSPUMPD 3.37154 31.87 27 4.87 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 100 NPSH Evaluation of Browns Ferry RHR and (S pumps CALCULATION SHEET Table 14.12: Unit 3 NPSH Calculations Case 5B 172F I Vapor Pressure Specific Volume Conversion Factor Temp( F) I

-~

(psia) I V(ft .

3ilb)

I psia to feet of head 60 0.256389624 0.016034992 2.309038802 172 1 6.281035863 j 0.016460423 1 2.370300872 Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NSH margin ft 1PUMPA 1f1NP_

_ margin 2PUMPB 4.94591 30.97 23.7 7.27 3PUMPC 4PUMPD 5.17532 31.51 23.7 7.81 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUNMPA 2CSPUMPB 4.11471 29.00 27 2.00 3CSPUNIPC 4CSPUMPD 3.3532 27.19 27 0.19 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 101 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.13: Unit 3 NPSH Calculations Case 5C 187.3F Vapor Pressure Specific Volume Conversion Factor Temp(F) (psia) I V(ft3 /lb) psia to feet of head 60 0.2b6389624 0.01 6U34992 2.3090U38U2 187.3 _ 8.822339971 j 0.01655191 2.383475045 rPool Press. (psia) 16.9 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) lPUMPIA l I 2PUMF'B 4.91948 30.98 23.7 7.28 3PUMF'C _

4PUMPD 5.14769 31.52 23.7 7.82 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1 CSPUMPA 2CSPUMPB 4.09332 29.01 27 2.01 3CSPUMPC 4CSPUMPD 3.33601 27.20 27 0.20 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 102 NPSH Evaluation of Browns Ferry RHR and CS punps CALCULATION SHEET Table 14.14: Unit 3 NPSH Calculations Case 6A 155.4F Vapor Pressure Specific Volume Conversion Factor Temp( 0 F)

_- A (psia)

^

I V(ft3lb)

P ^ Xt.

psia to feet of head

---

NA~n bu U.0 6W049Z 2.30U903jt8b0z 155.4 = 4.249928506 l 0.016369309 j 2.357180486 1 Pool Press. (psia) 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A _ r _ T _I 2PUMFB 4.96393 35.63 23.7 11.93 3PUMFPC l l 4PUMPD 5.19451 36.17 23.7 12.47 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 3.37547 31.88 27 4.88 2CSPUMPB 3CSPUMPC 4.21507 33.86 27 6.86 4CSPUMPD I I - I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-S70046, Rev. 8 Page: 103 NPSH Evaluadon of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.15: Unit 3 NPSH Calculations Case 6B 172F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) l V(ft3/lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 172 1 6.281035863 0.016460423 2.370300872 Pool Press. (psia 14.4 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA 2PUMPB 4.93642 30.95 23.7 7.25 3PUMPC 4PUMPD 5.16583 31.49 23.7 7.79 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

ICSPUMPA 3.35715 27.20 27 0.20 2CSPUMPB_

3CSPUMPC 4.19204 29.18 27 2.18 4CSPUMPD I I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-S-70046, Rev. 8 Page: 104 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.16: Unit 3 NPSH Calculations Case 6C 187.3F

_- Vapor Pressure Specific Volume Conversion Factor Temp( F) (psia) I V(ft 3/lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 187.3 8.822339971 3 0.01655191 2.383475045 [Pool Press. (psia 16.9 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA l _ _ _ _ _

2PUMPB 4.91004 30.96 23.7 7.26 3PUMPC _ _

4PUMPD 5.13825 31.50 23.7 7.80 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)

ICSPUMPA 3.33996 27.21 27 0.21 2CSPUMPB 3CSPUMPC 4.17012 29.19 27 2.19 4CSPUMPD I Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-5170046, Rev. 8 Page: 105 NPSH Evaluation of Browns Ferry RHR and CS purmps CALCULATION SHEET Table 14.17: Unit 3 NPSH Calculations Case 7 166F Vapor Pressure SpecificVolume Conversion Factor Temp(CF) I (psia) I V(ft31lb) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 4 -- I-4 166 5.468938413 0.016426501 2.365416198 Pool&-Press. (psia) 14.41 RHR Pressure (psig) l NPSHa(ft) NPSHr (ft) NPSH margin (ft) 1PUMF'A 4.0793 30.77 23.7 7.07 2PUMF'B 4.08192 30.78 23.7 7.08 3PUMPC 3.82856 30.18 23.7 6.48 4PUMPD 4.31176 31.32 23.7 7.62 CS Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1CSPUMPA 2.74921 27.63 27 0.63 2CSPUMPB 3CSPUMPC 3.58624 29.61 27 2.61 4CSPUMPD Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-QO995 M9170046, Rev. 8 Page: 106 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.18: Unit 3 NPSH Calculations Case ATWS 214.6F Vapor Pressure Specific Volume Conversion Factor Temp( 0 F) (psia) l V(ft3I1b) psia to feet of head

- _ _ - - -- - -- I-- -- 9-I - - -

60 0.25b689624 0.016034992 2.309038802 214.6 l 15.4840075 ' l 0.016732744 1 2.409515179 IPool Press. (psiaE 21 RHR Pressure (psig) j NPSHa (ft) J NPSHr (ft) NPSH margin (ft)

PUMPA 4.66078 24.52 23.7 0.82 PUMPB 4.67186 24.55 23.7 0.85 PUMPC 4.41446 23.93 23.7 0.23 PUMPD 4.89771 25.09 23.7 1.39 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999.970046, Rev. 8 Page: 107 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.19: Unit 3 NPSH Calculations Case App-R A 227F Vapor Pressure Specific Volume Conversion Factor Temp(OF) (psia) l V(ft 3/lb) psia to feet of head 60 0.256389624 0.016034992 2.309038802 227 19.65726995 0.016822324 j 2.422414688 j Pool Press. psia 24.1 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) J NPSH margin (ft) 1PUMPA 5.43696 23.93 23.7 0.23 2PUMPEI 3PUMPC 4PUMPD Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 108 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.20: Unit 3 NPSH Calculations Case Ano-R B 227F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) V(ft3/lb) psia to feet of head

_ - rOn^^

- - IA - A I6U U.U1 bU349Z Z.6utfu6Y5UZ 2 19.65726995 0.016822324 2.422414688 1 Pool Press. (psia) 24.1 I ; I I RHR - Pressure (psig) NPSHa (ft) NPSHr (ift) NPSH margin (ft) 1PUMPA _

2PUMPE3 5.42391 23.90 23.7 0.20 3PUMPC _ _

4PUMPD Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 109 NPSH Evaluadon of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.21: Unit 3 NPSH Calculations Case App-R C 227F

_ Vapor Pressure Specific Volume Conversion Factor Temp( F) (psia) V(ft 3Ilb) psia to feet of head

- - I I4-- - 4 - - - -

60 0.256389624 0.016034992 2.309038802 227 19.65726995 0.016822324 2.422414688 [Pool Press. (psia) 24.1 RHR Pressure (psig) NPSHa (ft) NPSHr (ft) [NPSH margin (ft) 1PUMPA I II 2PUMPE3 3PUMPC 5.38608 23.81 23.7 0.11 4PUMP[) L _ _ _ _ _ _ _ _ _ _ _ _ _ _ I _ _ __ _ _ _ __ _ _ _ _ _ _ _

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 110 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.22: Unit 3 NPSH Calculations Case Ao.-R D 227F Vapor Pressure Specific Volume Conversion Factor Temp(0 F)L (psia)

V(ft3 Ilb)

I psia to feet of head 60 0.256389624 0.016034992 2.309038802 227 1 19.65726995 0.016822324 2.422414688 1Pool Press. (psia) 24.1 RHR J Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft)X WPUMPA l_ Fl_ _

2PUMPEJ_

3PUMPC 4PUMPD 5.45444 23.98 23.7 0.28 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 111 NPSH Evaluation of Browns Ferry RHR and CS pumps CALCULATION SHEET Table 14.23: Unit 3 NPSH Calculations SBO A-C 197.3F Vapor Pressure Specific Volume Conversion Factor Temp(0 F) (psia) V(ft 3ilb) psia to feet of head

-A I A o I~~n - --- -- .^ - --------- ~n bU U.Z0U6tbYZ4 U.U1 b604YJZ

--- I .9 197.3 10.90873195 0.016615541 2.392631845 I Pool Press. (psia) 16 I

-- i I I RHR - Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA I 5.12658 1 24.45 23.7 1 0.75 2PUMP3 I T I__

3PUMPC 4.87856 l 23.85 23.7 j 0.15 4PUMPD l __ __ I _

Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

MD-Q0999-970046, Rev. 8 Page: 112 NPSH Evaluation of Bfrwns Ferry RHR and CS pumps CALCULATION SHEET Table 14.24: Unit 3 NPSH Calculations SBO B-D 197.3F Vapor Pressure Specific Volume Conversion Factor 0

Temp( F)_. _

(psia)

_ I V(ft3/Ib) I psia to feet of head 60 0.256389624 0.016034992 2.309038802 197.31 10.90873195 0.016615541 2.392637845 Pool Press. (psia) 15.

RHR Pressure (psig) NPSHa (ft) NPSHr (ft) NPSH margin (ft) 1PUMPA . .-

2PUMPE3 4.97858 23.85 23.7 0.15 3PUMPC.

4PUMP ) 5.20597 j 24.40 j 23.7 0.70 Note 1: See Table 8 for steps taken in calculating NPSHa and NPSH margin.

Document: MD-Q0999-970046 Rev.: 8 _Plant: BFN U1, 2&3 Page: 113

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date_

Checked Date CALCULATION SHEET TABLE 15 Unit 3 LOCA Pump/Flow Combination Pool Temp Strainer Flow Pressure (sgpm) Drop (psid)

LOCA 1A 895-F Strainer 1 14354.6 2.469 CS Pumps A/B/C/D-3125gpm each Strainer 23 13421.3 2.101 RHiR A/C Pumps -10,000 gpm. eachStanr2 131. 2.0 RHR B/D Pumps -11,000 gpm each Strainer 27 13167.1 2.365 Strainer 5 13283.1 2.116 LOCA 1B @155.4¶F Strainer 1 13772.1 2.415 CS Pumps A/B/C/D-3125gpm each Strainer 23 13093 2.029 RHR A/C Pumps -10,000 gpm each RHR B/D Pumps -11,000 gpm each Strainer 27 13313.7 2.274 Strainer 5 13207.2 2.052 LOCA 2A @95-F Strainer 1 14264.8 2.442 CS Pumps A/B/C/D-3125gpm each Strainer 23 13309.3 2.039 RHR A/C Pumps -11,000 gpm each . -

RHR B/D Pumps -10,000 gpm each Strainer 27 13237 2.286 Strainer 5 13414.9 2.063 LOCA2B @155.40F Strainer 1 14262.7 2.485 CS Pumps A/B/C/D-3125gpm each Strainer 23 12921.5 2.115 RHR A/C Pumps -11,000 gpm each Strainer 27 13265.2 2.354 RHR B/D Pumps -10,000 gpm each Strainer 5 12936.6 2.133 LOCA3A @155.4¶F Strainer 1 4905.66 0.1729 CS Pumps A/C-3125gpm each Strainer 23 4551.66 0.1068 B/D-0 gpm each RHR A/C Pumps-6500 gpm each Strainer 27 4648.25 0.1239 B/D-0 gpm each Strainer 5 4750.43 0.1428 LOCA3B @172¶F Strainer 1 4878.12 0.1719 BtD-0mgpm each NPS-a=NPSr Strainer 23 4526.95 0.1063 RHR A/C Pumps-6500 gpm each Strainer 27 4622.91 0.1233 B/D-0 gpm each Strainer 5 4724.01 0.142 LOCA3C @187.3 0 F Strainer 1 4850.69 0.1709 CS Pumps A/C-3125gpm each Strainer 23 4502.16 0.1058 RHR A/C Pumps-6500 gpm each Strainer 27 4597.51 0.1227 B/D-0 gpm each Strainer 5 4697.64 0.1412 LOCA.4A @155.4¶F Strainer 1 4835.65 0.1591 CS Pumps B/D-3125gpm each Strainer 23 4647.75 0.1238 A/C-0 gpm each Strainer 27 4731.51 0.1392 RHR A/C Pumps-6500 gpm each Strainer 5 4641.08 0.1226 B/D-0 each LOCA4B @1720 F Strainer 1 4808.63 0.1582 CS Pumps B/D-3125gpm each Strainer 23 4622.27 0.1232 A/C-0 gpm each NPSHa=NPSHr RHRA/C Pumps-6500 gpm each Strainer27 4705.55 0.1385 B/D-0 gpm each Strainer 5 4615.54 0.122

Document: MD-Q0999-970046 Rev.: 8 Plant: BFN U1, 2&3 Page: 114

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date Checked Date-CALCULATION SHEET LOCA Pump/Flow Combination Pool Temp Strainer Flow Pressure (sgpm) Drop

_ _ __ _ _ __ ___ _ _ __ __ _ _ _ __ _ _ _ _ _ __ _ _(p sid)

LOCA 4C @187.3¶F Strainer 1 4781.69 0.1573 CS Pumps B/D-3125gpm each Strainer 23 4596.76 0.1225 RHR A/C Pumps-6500 gpm each Strainer 27 4679.56 0.1378 B/D-0 gpm each Strainer 5 4589.99 0.1213 LOCAM5A @155.4'F Strainer 1 4642.35 0.1228 CS Pumps B/D-3125gpm each Strainer 23 4773.43 0.1471 A/C-0 gpm each Strainer 27 4913.97 0.1745 RHR B/D Pumps-6500 gpm each Strainer 5 4526.25 0.1024 A/C-0gpm each LOCA5B @172T Strainer 1 4617 0.1222 CS Pumps B/D-3125gpm each Strainer 23 4746.88 0.1463 A/C-0 gpm each NPSHa=NPSHr .

RHR B/D Pumps-6500 gpm each Strainer 27 4886.42 0.1735 A/C-O gpm each Strainer 5 4501.7 0.102 LOCA5C @187.3 0 F Strainer 1 4591.6 0.1216 CS Pumps B/D-3125gpm each Strainer 23 4720.38 0.1455 A/C-0 gpm each___ __ ____

RHR B/D Pumps-6500 gpm each Strainer 27 4858.97 0.1725 A/C-O gpm each_____

Strainer 5 4477.05 0.1015 LOCA6A @155.4 0F Strainer 1 4720.96 0.1372 CS Pumps A/C-3125gpm each B/D-0 gpm each Strainer 23 4661.24 0.1262 RHR B/D Pumps-6500 gpm each Strainer 27 4846.9 0.1613 A/C-O gpm each A_________each_ Strainer 5 4626.89 0.12 LOCA6B @172¶F Strainer 1 4695.03 0.1366 CS Pumps A/C-3125gpm each Strainer 23 4635.59 0.1256 B/D-0 gpm each NPSHa=NPSTlr RHR B/D Pumps-6500 gpm each Strainer 27 4819.83 0.1604 A/C-O gpm each Strainer 5 4601.55 0.1195 LOCA6C @187.3"F Strainer 1 4669.07 0.1358 CS Pumps A/C-3125gpm each Strainer 23 4609.93 0.1249 B/D-0 gpm each Strainer 27 4792.84 0.1595 A/C- 6500 gpm each Strainer 5 4576.16 0.1188 0

LOCA 7 @166 F Strainer 1 8289.24 0.877 CS Pumps A/C-3125gpm each Strainer 23 7500.75 0.6964 B/D-0 gpm each Strainer 27 7988.88 0.8029 RHR A/C/B/D Pumps-6500 gpm each Strainer 5 7703.14 0.7388

Document: MD-Q0999-970046 IRev.: 8 IPlant: BFNU1, 2&3 Page: 115-Fins I

Subject:

NPSH Evaluation of Browns Ferry RHR and CS Pumps Prepared Date-Checked Date-CALCULATION SHEET ATWS Pump/Flow Combination Pool Temp. Strainer Flow Pressure (sgpm) Drop (psid)

ATWS @214.6 0F Strainer 1 8797.52 0.1784 RHR AIC/B/D Pumps-6500 gpm each Strainer 23 3842.31 0.034 CS Pumps A/C/B/D-0 gpm each Si 2 7 30 Strainer 27 7688.36 0.0017 Strainer 5 4587.81 0.0485 Appendix R Pump/Flow Pool Temp. Strainer Flow Pressure Combination (sgpm) Drop

___ _(psid)

App-RA @227 0F Strainer 1 2336.37 0.0126 RHR Pump A-6500 gpm Strainer 23 936.046 0.002 Strainer 27 1767.64 0.0072 Strainer 5 1155.95 0.0031 App-R B @2270 F Strainer 1 1707.37 0.0118 RIIR Pump B-6500 gpm Strainer 23 1252.23 0.0064 Strainer 27 2088.01 0.0177 Strainer 5 1148.39 0.0053 App-R C @2270F Strainer 1 2336.37 0.0126 RHR Pump C-6500 gpm Strainer 23 936.046 0.002 Strainer 27 1767.64 0.0072 Strainer 5 1155.95 0.0031 App-RD @227 0F Strainer 1 1707.37 0.0118 RHR Pump D-6500 gm Strainer 23 1252.23 0.0064 Strainer 27 2088.01 0.0177 Strainer 5 1148.39 0.0053 SBO Pump/Flow Combination Pool Temp Strainer Flow Pressure (sgpm) Drop

_____ ____(psid)

SBO 1 A/C @197.3 0F Strainer 1 4720.36 0.051 RHR Pump A/C-6500 gpm each Strainer 23 1901.72 0.0083 Strainer 27 3578.79 0.0293 Strainer 5 2345.14 0.0126 0

SBO 2 B/D @197.3 F Strainer 1 3456.45 0.0478 RHR Pump B/D-6500 gpm each Strainer 23 2540.8 0.0259 Strainer 27 4218.78 0.0713 Strainer 5 2329.97 0.0217

Calculaton 2ll}Q099>970046 Page A3-1 of 3 Appendix 3 Evaluation of the ECCS Strainer to Ingest a Steam Plume/Bubble This appendix determines t vcrtical and horizontal distances between the MSRVT-guenchers and various poilas on the ECCS suction straines. The hoz distance is compared to the MSRV T-Qaenchcr to ECCS sparation critna contained in the Brookhave National Laboratory attached to the NRC SafetyEvaluation Report forNEDO- 308:32-A, "Eimination of Limit on BWR Suppression Pool Temperaturc Limit for SRV Discbarge with Quenchers" Assumptions:

None

References:

1. Drawing 2/3-E20, "rVAContainment Vessel, Pitsburgh-Des Moines Steel Co.

2. Drawing 2/3-47W401-5, "Mechanical Main Steam Relief Valve Vent Piping".

3. General Electric Drawing 105E2202 Rev 1, -Suction Strainer" Design nputData:

1. Distance from ing hcadr centerline toveld onpentmin X.204A-D =1' 10" (Ref. 1)

2. Distance from weld an penetrationX-204A-D to exterior or suppression chamber shell - 8ff (based on field measuremnt)

3. Distace from exterior of suppression chamber shell to strainerflange 0'11 5116" (Ref 1)

4. Length of srtion strainer - 49.8 (Scaled from Ret 3)

5. Hydraulic Diameter of suction strainer 4" (Ref 3)

6. Angl of suction strainer to hoxizontal = 400 08' 36" - 40.14 (Ref. 1)

7. Distance from ccnterline of ring header to centerline of suppression chamber = 13' 10" (Ref. )

S. Disace from centline of uppressio chame r to cc cin of MSLV T-Quencher 15" Ref 2) 5'. Diameltr of MSRV T-Qoencher - 12 (Rce 2)

30. Eevation oftinghaader= 525' 4" (Rit 1)

11. Elevation DfMSRVT-Quencher = 526' 6" (Re£ 2)

Computations and Results-llhefollowing calcdlationisbased onthe sketchsbowninrigwcA3-1. Thefigureisbased ontheabove desimgiut data.

(I' I0"+ 8.5" + 11S/16" +49.8)

• COSINE 40.14 " 70.0"

).2 - 2.s

• SNE 40.140 = 14.50"

Calculbtion?MD40999-970046 Page 3 -2 of.3 Appendix 3 (Cont'd)

Evaluation of the ECCS Strainer to Ingest a Steam Plume/Bubble Honzovtel Separaton= SR= 13 10' -X1 -X 2 + 15" 13' 10"-70.0" - 14.50"+ 15 -6= 90.5" -7.S4fat 2.3 meters

=(1 10" + 8.5 + 11 5116" +49.8")

• SNE 40.14- 59.1'

,52 22.5 " COSINE 40.14' - 172" E' 59.1" - 17.2"-41.9"-4r llevation of tip of strainer- Ctcinc ofzingheadcr + E- 525' 4 + 42" - 528' 10' Vertical Separation - Elevation of tip of strainer - Elevation ofMSRV T-Quencher 528' 10 - 526' 6 2' 4"

==

Conclusion:==

The hzontal sepqaiondistance fm the Brookhaven report is 1.5 meters. Since the BFN separation (2.3 metes) cxcceds the Brookhaven criteria, it is not expected that the steam/thermal plume from an MSRV would be ingested by an ECCS sion strainer.

I' A1i

.t I. c~l.41" MI-(WOI2q- lwsv6 FlaM re A3-1

,=CCS S+fv;6,ir. --"f( M.S pi I- 04,09.4? Re slit f-SL p I

J

.1 4.

4-1 a14

-e i It of i,_t T sp K iHf I III .:

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-ye-rt- A Atl r~c4 A-QA Record !1 TVAN CALCULATION 1

TITLE NPSH Evaluation of Browns Feny RHR and CS Pumps /UNT BFN/ Unit 2 & 3 PREPARING ORGANIZATION KEY NOUNS (Consult CCRIS LIST)

Sit Enginering-Mchankal I Ndcar DR;ANCHIROJECT IDENTIFIERS Eachlime Thesc caklculatlo art Issued, preparers mudt ensure that lht original (R0) RIMS esslen numlberis MDQO999-970046 Coca S Rev(f rVRIMSust) aRIMSaccession number RO __ _ _ _ _ _ .1-4 9 81 1 .1 8 10 APPLICABLE DESIGN DOCUMENT(f) Rl Design CkhreriaNo. BFJN-507074A R2 BFN-50-7075 .

SAR SECrION(S) UN1D SYSTEM( R3 N/A 074 & 075 . ,

Rcvision 0 RI R2 R3 Sefaty-rcluted? Yes NoQ 1XCtNch (or Indicate Not Applicable) / sYttement vf Prohlem

/ ____ NRCJE Bulletin 96-03 andJRegulatoy Prepsred Guide 1.82, Revision 2 in.WMy 1996 V14 -- . ___y requiredmeasures to insure adequate NPSJifor ECCSpumnpt d&ringpost i7((0vifif \6 / .,LOC4 conditions Rc.% cy I t is necessary to determine the pump APProv NPSH available is adequateand that

/.margin Is avallablefor ECCS strainer Date design.

Use ferns List 1ll pnaes added This calculation determines the RJIR and TVA________ b'/CS pump ATPS)f margin at, ilabke with a

!101 Llst all pxes dell I. .,. ECCS replacement straine, design.

Ura"X by hls tevixAi_ .

xsact UZI ADpates reque by t&ldo tvaisA,Gmr Oe h t . a 0 N

_d ht.

(A) Ifntitt CV, (F) Sdeleded In.t". ,_

Abf T.bn contain umeriflod =uuptile ) that must Iterlan Y. I NoeO hunp Net Positivc Suction Head JRequired (NPSHR) is dcfined as the minimum head required to prent pump cavitation 71i 1Iset Posidwc Suction Head Available (NIPSHA) must be greater than the NPSHR to prenvent pump c'tation The diffeencx between NPSHA and NPSHR is the runmuning head margin and is referrd to in this caicuaon as the NPSH margin hins eValuation encompasses both Unit 2 awd Unit 3 RMR and CS pumps.

. 0MItrotlha and stor calculntions in RIMS Sernice Center Microfilm and destroy. f

• Micro0 1M and return clculadtions to: POD TIC - RFN Addres:

A U v, ?t1 A Or QA Record TVAN CALCULATION COVERSHEET Title NPSH Evaluation of Browns Ferry RHR and CS Pumps IPlarit BIN Jfapf IUnit 2.J3

~xn~r~1A~otKeyNwum (Fmr EDM)

SE-DFJMNUC _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Caculation ldemifiet Each 6imc these caleulationi are imnued, preparer muat umffe thiit the oeigiial (RO)

MUI&W.M aeccesion nurribcrfislMd in.

MD-Q0999-970046 Rev (for WMmue EDM Aoceoiion Nurnher Applicable Des~ignDoctcAs) RO R14 921 118 102 BN.S04074&!3R.SO-7075 R14 9 0 1 6 1 057 BPOVSL-706-lA R I it.

UID Systern(s) 32 X 44 .9 .91 1.j8 I10.1-SYS 074 &075,,6qA 113 R 14 000706 10 1 1O1I 2 113 Quality Mielaad Yes blo DCN. EDr- NIA MA ~ A Safety related? If yctar m* yes N~o NA ___ __ __ __ ___ _ 1A__ __ Quality Related ves ElU Chced1The"e ealut-latiaow nwitaa Yes Ne vterified assito~)ta O-sJ RMustbe verified War.?

VerifieMd2i1 7 These calculatwns contain yes t?%*

Verifed spssalrequirement"t and~or

,~,

~~ huititing Moditioaa7 Appr-ved k-FG Thes aculatiaa conntai, a Yz 'No design outpu attaclauMA? o 5:

111392w ,/ 7/1 /2o0 calculatim lsiicta

)ARAffectod? YcsO No0 Ye lN e1 OC YesU b o1 Micror~dwuineatd* a Ye Revision Lntirt calc I~ Entlire CaL. 0 Entire catc Cl Entieci NWcobcr

[!,ilcabuity __ _ _ _ _ _ Selecttd pgs E3 Slce g eetdps _ _ _ _ _ _ _ _ _ _ _ _ _

RWE V. 0 COVER SHI'.T, PACW )A) 9 MZV AL

-ra4 &I&*swd4.T1rp J: a ~ese IRz haUtract (SOR RF.V. 0 COVER SIHIU , PAGE IA)

Rev. I peafonnradditioral E LOW casn frea fo mcloap orRHR with two pumps in nm-ow at 1A.00 am uac m loap Of 11 ;ith two pump at smataxam dcsn flow uf 10,000 goP cadi, abd fow CS pump operatin at nomal dc.in flow, 3125 pa., with the .spprow~on pool tompebr at 95 dXe NMe F.

4j )axofllm and retum c lation oCalcultionL y. Addrae: Ci Microflm addWa.o.

13 microfllm and retunm cad laltort:I b'-Ir/,

k

.. V- , . A, - -2, _e I . , - .- - _

QA Record I . RIGINALI TVAN CALCULATION COVERSHEETICCRIS UPDATE Page 1

,qv EDMEIRIMS No. EMSTYPE.JEDMS ACCF,6EIQNHQNOIC M1*REV O R1491li1O8 , ~~' ~___1 Q2OD71.R 105 cakTtti: NPSH Evaluation of Browns Ferry RHR and CS Pumps CURRENT CN NUC 8FN ME 030099 044 B1EIS1 MD-0999-0046APPUCABIL~

&kctodg HW I g.N.CCRIS C",mU ACTION4 NEW REm"IO bB I 0ELIETE RtENAMP' aUPtRsmD DUPUCAlt D_jCCRtISJJPOA7EoaLYC3(O~

{) 1 podSibMN ptimbefD U-.

k~bnC&

rW4NWMWd uno o74 en M Vanous___

CIM.H16~IL APPI1CARLE 2F SIQNMM DOUMNS A aSAFETY REtAnMD I PFIA IE IREMANh~SRT E]

Y~.a1 YSJN MWRN M No. i VMONVNofI

.PiAnk ..-- PEAt POEN.PRFPA*Ng gRGI'MPANCF1 o N , I.

APPP3aLSATE'E k4P ATAMW'.N1 OF PROMMABSTRACT U /

See previous cover sheets (Attachment A, pages A-l & A-2) for the eaulier sterments ofr the prblern Ibstrcs.

Due to EPU.-the peak suppression pool temperature has risen to I B6.6 F.Q 14,700 seconds (Ref. 3.19). This c"Icutatioc nssumes a over pressure of 3 s for both the shod and long lemis and concluded that there is adequme NPSH main fo the iwos case aefer abowirn for the Increase In vapor pressure due to th highertemnporalure.

IAJCROFlCHE)EFICHE yem1 t~Ca FICHE NJMBEWfSI o LOAD INo EDMS ANDDESTROY -_ -.

LOAD IJTOEED AND RETURN LCUAATlON TO CALCULATION UsRY. ADDReSS:

3 'LOAD INhTOE[D3 AND-RETURN"CALCULRATION TO' Paae12 TYATVAI52fu7.2OO¶j M532D740 Pa I 01d2 WIV-2-1 V7404mil .

14a'~lvN V3z_ &4' TVAN CALCULATION COVERSHEETICCRIS UPDATE p,age 2

• A.. A ._

hIMf' If% I uVDt I rDbe I PIrNT I ARAPJf1W i 11II IRO RFv, I I

- - I I

. I_1 -I CN NUC ~ BFN MED M 09g9-9700416 04 ALTERNATE CALCULATION IDENTIFICAIION ALI& RaOm I flug I 99RO-awZIM Um . PIM aiaL' YesvL K-EYMQU-S- (A-add, D.doeaet)

A 3982 A CPPU A EPU A CS SYS A AHR A NPSI A PUMP -

A HEAD _ __ __ _ __

A :1STRAINER -A ECC6

• CROSS-REFER~ENCES 4A-addC-chamnge, D~daete)

-f"o 7

..: ...-.'n

. I Cra

• gs. a vs .:r-8 weI CCRIS w(

• W ped t4of jam HMP.2.1 b ltd kV j~ - -

PREPAPER SICRATURE iA~E CHECKER SIGKATJRE PREPAOAYR NE No . 'EDlifACCEESIOIQNN~l M 1VA :1111544w-.a#njX Pwice 2 w 2 7 - *NEOP:'.-1 -P7-Ma )0-11.

• .tX-wH( A.

TVAN CALCULATION COVERSHEETICCRIS UPDATE page 1 REV 0 EDMSIRIMS NO. EDMS TYPE- EDl S ACCESSION NO (NWA for REV. 0M R1498`11`18105

_ _ calculations(ftuiar)

Cac mndo: NPSH Evaluation Of Browns Ferry RHR And CS Pumps CURR ENT CUR R CURREN1" CN N BFN MEG .D09904 0_ 132K:P BION NEW C NUC _ Selected pages D No C  ; ChaRng" ACTION NEW a DELETE 0 SUPERSEDE 0 CCRIS UPDATE ONLYD (For calcrevision, CCRIS REVISION C9 RENAME EJ DUPLICATE O (Verifier Approval S.tures Not beoen revied and no RqTSCRIS Changes reired) 00i. 002.00 064,k074 075 WA_____

2,'N EQN/A f lAPPLICABLE DESIGN DOCIEAT(SK)

DCN 5I200 NA E QaN ITY SAFM NVERIFIED SPECIAL REQUIREMENTS DESIGN OUTPUT LARrrS AEFECTED RELATED RELATED? IAS 1,MEIIQN ANINR I.IIT ATTACIDME NT2 Yes 1 No0 D gyes. OR yes) . Ye O No-0 YesO No YNO No9 Ys El] NO I Yes B No 0 PREPARER ID PREPARER PHONE PREPARI G ORG (BRANCH) VERIFICATION METHOD t QMEl )F ANAL=

DdAROI NO 301-221720 UECINUC DESIGNREVIEW I Eyes C No PREPARERSIGNAT I -E DATE l CHECKER SIGNATURE DATE DENNIS KAROL f D5' (o) 3 M. ANGIOULLO I24 2 A o VE:RIFIER SIGNATU, DATE APPROVAL SIGNATURE DATE M.ANGIOLULLO Mt./! Ll2 ts e W.D.CROUCH Problem:.

The purpose of this calculation Isto determine that the Residual Heat Removal (RHR) pump and the Core Spray (CS) pump Net Positive Suction Head (NPSH) is adequuate and that margin Is available for the Emergency Core Cooling' System (ECCS) replacement strainer design.

Abstrcmt Revision 5 has determined that the values calculated In Revision 4 of the main calculation for Units 2 end 3 cperations at Extended Power Uprate (EPU) conditions is also applicable to Unit 1 operations at EPU conditions.

This revision makes the calculation applicable to Units 1, 2 and 3.

MICROFICHE/EFICHE Yes 0 No- FICHE NUMBER(S)

LOAD INTO EDMS AND DESTROY 0 LOAD INTO EDMS AND RETURN CALCULATION TO CALCULATION ADDRESS:

LIBRARY.

o LOAD INTO EDMS AND RETURN CALCULATION Tr0 1VA 40532 t07-2001) Pape I of 2 NEOP-2-1 (074)9-2M]

E: -

<6- A.- CO TVAN CALCULATION COVERSHEETICCRIS UPDATE Page 2 I

I CIFV I TYPE I ORG I PjANT IBANCH CALC I I b11 "2CICD NUMt8E _ I

. REY s CN Ih N I MED IMDO0999970046 1[ MS AL1ERNATE CALC~iULATION IDENTIFICATION lROOM ELEV lCOORODAZIM FIRM PrintYRen es 0 01 NIA N/A NJA Berht I CATEGORIES KEY NOUNS (A-add, D-deletb)

ACTION KENOUN KEY NOWN A LOCA CROSS-REFERENCES (A-add, C.change, D-delete)

ACTION XREF XREF XREF . REF XREF XREF AlC_ COE PLRANC H NUMBER REV A P CN BFN NIB ND019992020018 A P DW BFN MEB 1-47E11.-.

A P oW BFN MEB 247E8111_

A P oW BFN MB9 S34E811-1 A P DW am MED 147EW14-1 A P DW PFN MEEB 0-7E452-t A P DW BFN MED 2-47W2452-1 A P VW B FN MEB 0-47W458-2 A P DW BFN MED 147W453, A P DW BFN MEB 2-47W453 A . _W 8FN mEm 2-47W4.%4-A P DW BFN MEm 2-47W45M A P oW 8FN MmE 47W40145 1

A P VD BFN MEB 103 (UNiT 1)

A P VOD BFN MEB 103 (UNIT2)

A P VD BFM MEB £19 A P VD BFN MED 2-E19 A P VD 5BFN MED M iell A P ON BFN MEB DCNT-40210A A P DN BFN MEB IDCNT-40211A CCRIS ONLY UPDATES:

Fonov4ng are required only wen making kew cross eference CCRIS u sasts and page I of form NEDP-2-1 is not Iclud6d:

PREPARER SIGNATURE DATE CHECKER SIGNATURE _ DATE PREPARER PHONE NO. EOMS ACCESSION NO.

IVsAn~

1VA jU7 -nr 4U1 107 40532 200 1 ,FU rae nU ruwt-Di rm ju ownjs page xax NEP2 wmo-w2001]

("',

P"--k TVAN CALCULATION COVERSHEETICCRIS UPDATE Page 213 CAlC IF] I TYPE I

_r . - - .

Mr-:

I VI ANT I

frlANf'-1 I

NI IKMBR I RFV

~1I -

ICN I NuC jBFN - I- mm IMD009999?0046 Joosj ALTERNATE CALCULATION IDENTIFICATlON BLDG l ROOM~IlEE COORD/A21M l LIRM lprlnl R mdo Yes a3 01 l NtA l NJA l N/A I Bechtel I CATEGORIES KEY NOUNS (A-add, D-delete)

ACTION KEY NOU CROSS-REFERENCES (A-add, C-change, D-delete)

Am 4 T wt NOUN ACTION XREF XREF )(REF XEF XREF XREF (A ] COOE __P 8H REMER V

A P DN BFN wEB DCN $1200 A P VD BFN MEB GENE-0000-028718SE 0 P DW BFN MTB 4TW814-1 D P DW aFr NTB 4TW4SB3 D p DW BFN MED 3-47WO41-5 TV 0320.01)Pg of 2 N O-. 1 0-90 CCRSO LY PDATES:

F RfOV arYrequired o VAwen M~k~ng keyw rt/oss reference CCRIS U 2taG Ond 02 ffr N D-- sno nldd PREPARER SIGNATURE CATE CHECKER SIGNATURE DATE PREPARER PHONE NO. EMS ACCESSION NO.

TVA 40532 107-2001) Page 2 of 2 NEOP-2-11074&2001)

.1 I? 6 AITACHMlNJT A PAE A-8 ,JG;N Z TVAN CALCULATION COVERSHEETICCRIS UPDATE _ _-

Page 1 REIV 0 EDMS/Ph*tS NO- EDMS TYPE EQMS ACCESSION NQ(NMA for REV, 01 R1498111810S rnIculr~ns(nudew) W 78 030924 0 cwcmde: NPSH Evaluation of Browns Ferry RHR and CS Pumps CALC ID _ BRANCH NUMBE UR NEV .

CURRENT CN NUC BFN MEB MDQ979046 AP00ICABILITY

_-E.W CN NUC 0O6 Enbrl> alc 03 No CCRIS Chw3w ACTION NEW 0 DB.ETE 0 SUPERSEDE 0 CCRISUPDATEONLYE0 (Forcac rAvon.CCRIS !S REVISION 0 RENAME 0 DUPLICATE 03 (VfierApprraS'gnazwesNotRequkbd) been rehe0ed an no

. I- C~~CbmgChes Mcquir-cd)

WMIT SYSTEMS UN109 001.002.003 064 074 075 NMA QCN.ES2IA AP CALFl DESIGN C3SATMCATION IUMFNTt)

DCN 51200 WA E QUALIlY MFY. AYtNVERIEIE12 SPECLAL REQUIREMENTS DESIGN OUTPUTr UASAFFECT-aD RELATED? RLATED? ASSUMPTION AN R LIMITING CONDiTIONS7 ATTACHMENT7 Yes LS No

_f 3 f y-CtResOR-y-) YesO NoO V.. 0 No Yo No13 Y..f) NoC Yes O No 0 ys NO coO PREPARER ID PREPARER PHONE PREPARING ORG lBRANCHN VERIFICATION MHOD NEW MTHO OF ANALYSIS DJKAROL NO 301o-2z672D MECKM DESIGN REVIEW 0 Ye a No PREPARER SIGNATURE DATE l CHECKER SIGNA2WRE -DATE VERIFIERSIGNATURE DATE APPROVALSIGNATURE DE LDED EDe-Z'o WOCROUC2/gtiju [ J O ITA1TEMEN OF PROBLEMASBSTRACT Problem:

The purpose of this calculation is to determine that the Residual Heat Removal (RHR) pump and the Core! Spray (CS) pump Net Positive Suction Head (NPSH) Is adequate and that margin Is available for the EmergencyCor? Cooling

';ystem (ECCS) replacement strainer design.

Mstract This revision adds the Unit I mariin to the calculation.

L4r-0~rwx:rW_ v - .M M-rm jrsm C] LOAD INTO EDMS AND DESTROY El LOAD INTO EDMS AND RETURN CALCULATIONTO CALCULATION ADDRESS:

UIBRARY.

f] LOAD INTO EDMS AND RETURN CALCULATION TO TVA.40=12 07-2001) Pago 1 d2 . NEW'-2-t1107-2D0i)

ATTACHMENT A PAbE A-9 TVAN CALCULATION COVERSHEETICCRIS UPDATE I pPa9O 2 fCAPlf I rv I -aoft I Di Amr I r0A1ie I lit #1JOR - A or\i I II,,. 1 ol... I I CN I NUC BFN I MSEB I MD099997046 I foI I ALTERNATE CALCULATION IDENTIFICATION i3LDI lLEV l RIM M pjt Ye O 01 I NA A I N/ - I RI CATEGORIES KEY NOUNS (A-add. D-delete)

ACTION KE NOUN M I!EX OU CROSS-REFERENCES (A-add, C-change, D.deleto)

ACT)ON XREF XREP XREF XREF XRF XREF r _ PRANCH NUMph REV

. . . WA l z 0 .

T V 01 ,Q~ 1,-2 P. 2  :~ .E P- - 07 .. 20_1 CCRIS QNL UPDATES-FNI&o'Mnp aev *roofdony*tenn h~

ky ~ tioss rgeecCCPJS upae wW pd cr I of orm NEDP-2-1 Is , Inhcluded:

PREPARER SIGNATURS DATE CHECKER SIC5~TURE OATE PREPARER PONE NO. EDMS ACCESSION NO.' _

TVA 40532I07-200l} Page 2 of12 NJEOP~-t l07-9200 tl

Arrcst r t1 ACi° -v QA., Mnmord TVAN CALCULATION COVERSHEET/CCRIS UPDATE .

iD;

• ' ;r t Page 1 LEV 0 EDIMSIRIMS NO, EDWs TYPE ESSION NO (WA for REV.

R1498111S108 Z2Z)W78 0402I caloubator*(nucleat) st 8 0.4 0-2 1 9 00r oo Cac

Title:

NPSH Evaluation of Browns Ferry RHR and CS Pumps CALC ID TYPE QRG PLNT R NUMBER CUR REV NEW REV CURRENT CN NUC BFN MED MD00999970046 0, jREVISION APPLICABILITY NEW CN NUC 007 Entire calc Selected 0 pages 0 t iNo CCRIS Changee C ACTION NEW 0 DELETE O SUPERSEDE O0 CCRIS UPDATE ONLY 0 (For cak revision, CCRIS

.REVSION 1 RENAME n DUPLICATE 10 (Verifier Approval Signatures Not Required) bew reviewed and no S I ICCRIS changos required UA SYSTEMS UNIDS 001,002. 003 064 074 075 WN/A N/ADC-I'A lAPPLICABLE DESIGN DOCUMENT /LAS$F NISA l CATION NWA IA I FCA O

,UALTI Y SAFETY RELATED7 U IFIEDl SPECIAL REQUIREMENTS DESIGN OUTPUT §ARITS AFFECTED BELA DQ (I ye$. OR c yes) ASSMPTION l ANCYOR IMITING CPNDITIONS?1 ATTACMENT Ye 1 No Y NoIO YesO No0_YesWE NoD YusO No1 PREPARER ID PREPARER PHCONE NO PREPARING ORG (BRANCHI I VERIFICATION METHOD NMETHOD OrANALYSIS Ed Rnk* 256 729 7000 X18383 Mech/Nw Design Bu D Yes 9 No PREPARERSIG TIE7 DATE PATE VERIFIER El UR\ ~ DAT4 . 1112DI 11LIl'Iqlpq 119VAL StG AAT U N E DATE STATEMENT OF PRo'kYENABsT)Akr \.2) I I V Problen:

The puipose of tisa calculation Is to determine that the Residual Heel Rernoval (RHF) pump and the Core Spray (CS) pump Net PockM, Suction Hoed (NPSH) Is adequate and tat mnargin is avaiable for the Emergancy Ccre Cooling System (ECCS) replacement strainer design.

Abstract r This revision adds Appendix 5 to quantfty. and to document the basca lot, the numerical values d ava*lae NPSH and NPSH margins for UI thaI are subm-ed to the NRC in response to both Gerneric Lettr (GL) 97-04 and NRC Bulletin 96-03.

MICROFICHEEFICHE Yes U No I FICHENUMBERIS)

U LOAD INTO EDMS AND DESTROY o1 LOAD INTO EDMS AND RETURN CALCULATION TO CALCULATION LIBRARY. ADDRESS:

o LOAD INTO EDMS AND RETURN CALCULATION 0:

.VI u. ,n-e - -.. _

, vS* ua; LUIvAuol Page 1 012 NEDF'2-1 107.09-2001l 10 J

To: Those Usted FrDm: Thomas Newton, BFN EPU Psoject

Subject:

ECCS N'PSH Calculation Revision Differences from EPU Task ReportT0406 Date: 7116102 BFN Calculation MD.QO999-970046 Was rTCistd at Rcision 3 to incorporate the approved license value of containment overpressurc credit. This meant adding I psi to the short term results for PR and subtracting I psi from the long term results for CS in Tables I and 2 since the calculation already considered 2 psi in its original deteriniistic results. Revision 3 modified the

• calculation results per the NRC SER of approved overpressure for NPSI. The conversion factor for I psi used inperforming ibis calculation was 2.31 fsfpsi. Tbe original results of the calculion utilized the conversion factor corresponding to the suppression pool temperature as listed in Table 3 of the calculation.

In Extended Power Uprate analysis, General lectric made the following.statement in Fil Task Report T0406, 'ECCS l4et Positive Sucion )idu Section 3..2, Item 2, priry bult 3,.

"TCLPNPSH m u from previous NPSH calculation (M -)Q0999-970046)wem obtainet.

• Setlhic~nsi~iinchud~containmn~ t yersure creditsr NPSH matgins withoizthe e*

& i~~~si~rc corateiscbarc ui .tion uses azehduconwenioitaetors-pT23..  :*

• Whpsl, tsil b~uithst.i'

~ 'nv Vrt :s~-

'.'ti ~to E l;t& conv l toYti otwatr-. ibe. , *- ,^

' .~ln PSUtS ik aiajiscuis cci oiton fatorsleul t1d b std~on6kitbewter *.**. *;i Thtrefore, GE's arialyses used a conversion factor of 2.31 fipsi to establish the baseline NPSH margin from the TVA calculation and tben used a vapor bead conversion factor corectly based on the suppression pool watir temperature for the additive effect of increased suppression pool temperature (and vapor pressure) on NPSH mnargin.

GE utilized a spreadsbeet and table (attched with mar)ked changes per the TVA calculation) to support or report Task Report T0406 results which reflected the deterministic attributes above, If one utilizes conversion factors based on suppression pool temperature, the values for NPSH margin in Task Report 10406, SetioA 3.3.1.1, are slightly different. Revision'4 ofMrQM99 970046 was performed using conversion factors based on the suppression pool water temperatume and A eontalinment overywessure of 3ujj. Xesults are refLected in Case I (PSH mnarn for the torst caxe RHR pump), Case ,. (NPSH rnargi for the worst case CS pump), and Table 4 and some values are sfigply different fiom the content of Task Report TQ406 per Ias explanstion

• cc:.T.Tor..

Y g:.Wh 1'.. ': *- '-. ' '^

. .. . I

I P.oel.TojpmeoraIwe cAtlCulelo pRftqJ l9*4OO -lo .4.rt Pre -- Pre-EPU EPU EPU RHdR CSs EPU EU Vopex ime aflevEPU Yot ConverstoilNPSH iP6H contalnmetnt NPS Pool pturea uLpOimTmpPoolV Flow Fbw ao TH acer Ugi (t N bdoMrg aovegvrtwes"urtaMrgn Itt)in, 0rchw t4L Cot" (Upm) Temp OSl) *rompel:)8,,Z "t ovsI wwUot c tLOCAwwlout rn(psi) wt flHR , .

• t 4 *..* @, .^ o *. ~ tg~ / - .* e sS.X.9~A Short Term LOCA (8800 42,000 12,500 14o 2AB9... . 600 155 4 .s VI 5.735-90 3 1S I- 3i.

.oll$J Term 13,000 6,2S0 177 7.023 0(3, .15z6. 3.90I.. :.063 2.355 5.87 S-13.08 17.15 5* t; 4., 2.45 .

LOCA V 7.026 4154) it5:M rJ037 4A59 2.374 S.875.,4 0.32 t.-19 a

• I -

7.02a - 4510 177 7.023

• 0:00 2375 5.87 5.17 5  ; -ti.

7.026-:-., 550o .179.1 7.i4514 .. 328 2.377 5.87 5.09 1 1

• 47 Ii i 7.026 70. gO0o 11.8S 7.? O11

'T1* 2.379 5.87 3.94 141 1 6;3,2 I 7.025 7100 101.0 71.84 *C 2.379 5.87 3.92 2 s

y.  :.is 7.02B i4,700.-'1865 eeoC .,65 2.381 S.87 1.92 2-11 64 6 7.02- 182.8 *7.9;

.35d00 ., 9.989 2.380 5.B 3.56 2 732 7.026 37,$00 181.85 7.83;:T p811 2.37g SA75.I 3.94 II t 3.

,2,30 17503 .

0.6~y. 802e 5.32 0 C.32 '021

hort Term 4S. 4 M

• 2.357 ST 423 4.11. 1.02 OqA 3 .oq E LOCA 1.?t' .. . - I--

Lon0 Tonn ~ Gal-,

1023S i aC -.045 O'w58.78 6X~

tOCA -" ;52~~

i $? 0 cg0i of 0 :3,063 2355

.0.45 0 0.001 0.3 4156: 175 .EtFl of 0pr t 2.374 4580 177 2375 -0.45 j 1.12.

O.0>0 -0.45

,:..isSoo 0.32 179.1 ' .

2.377 .0.45 .1.23

-0.45 1-. oIFaN 7ioso I dtlassentof I PO Q.",1 2.79 -2.38 -27'13 z . 'O.O.0 7.100 18 1 j 0PA.1120D

,d0 2 2.379 -A.45 -2.40 2 I t.b Ites 14700 1888 .. 1858 2.38:3 -0.45 -4.40 -lp5s 2:. t o2L't.

r. %i 82.?5 37500;: 11.85End of 2 psI:

52300i: 175.83Enwt I pol

.. 4,1 i 6

.. 169 2.350 2.379 2.374

-0.45

.Q.4S

-0.45 .

-2.76

-2.38 -5*x 0.00 4

2 0 *.0o0

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, by G 3 At q 7 CC 4C K _ DONALD L To FADY S4GAIED/SargentIundy@Sargentlundy MCOUEEN/Sargentlundy cc 02/16/2006 11:32 AM bcc Subject Fw: Pump/Flow Combination Cases for MULTIFLOW 12PU Revision to NPSH Calculation

- Forwarded by DONALD L MCOUEEN/Sargentlundy on 0211612006 11:32 AM

'Newton, Thomnas F.'.

.ctfnewton@tva .gov To cdonald.L.mcqueen~sargentlundy.com>

0112312006 10:39 AM cc 'Housley, Denzel A.' cdahousley~tva.gov>, Jones, Henry L.' hljones~tva.gov>, Wolcott, J. D.' <jdwoIcot1@tva.gov>

Subject Pump/Flow Combination Cases for MULTIFLOW EPU Revision to NPSH Calculation Don, The attached is a listing of the cases we have agreed upon. The number of cases Is very similar to that of the existing calculation. It doesn't take long to modify the input and run each case - the largest effect is formatting and presenting the results. I am leaving the office for the day, but will be here most of the day tomorrow. I will call you when I get in so that we can discuss any questions on the cases listed.

Tom Newton LOCA Cases lot MULTIFLOW Reykion to NPSH CaLtculatdoc

tJ Ho' c1t WCvl \L QcA. -Q j Gqcq7 QO/,-'

Pump/Flow Combinations for MULTIFLOW Revision to NPSH Calculation Note I - All cases to be run at 0 containment overpressure conditions Notc 2 - LOCA strainer resistance to be developed as a function of strainer flow and input as a resistance element in MULTIFLOW model, special event strainer resistance taken as zero.

Note 3 - All cases at EPU conditions only Note 4 - Cases at which NPSHa = NPSHr will require iteration on pool temperature to determine final pool temperature LOCA Pump/flow Combinations Suppression Pool Temperature CS Pumps A/B/C/D - 3125 gpm each Temperature @ 95°F RHR A/C Pumps -10,000 gpm each Temperature @ 10 minutes EPU RHR B/D Pumps -11,000 gpm each CS Pumps A/B/C/D - 3125 gpm each Same as above RHR A/C Loop-I 1,000 gpm each RHR B/D Loop- 10,000 gpm each CS Pumps A/C - 3125 gpm each, B/D - 0 Temperature @ 10 minutes EPU (155.4'F)

RHR A/C Pumps - 6500 gpm each, B/D - 0 Temperature where NPSHa = NPSHr Temperature.@ T,, EPU (187.3 0F)

CS Pumps B/D - 3125 gpm each, A/C - 0 Temperature @ I0 minutes EPU (155.4°F)

RHR A/C Pumps - 6500 gpm each, BID - 0 Temperature where NPSH, = NPSH,

._ Temperature @ T.,, EPU (1 87.3 0F)

CS Pumps B/D - 3125 gpm each, A/C - 0 Temperature @ 10 minutes EPU (I 55.4°F)

RHR B/D Pumps - 6500 gpm each, A/C - 0 Temperature where NPSHa = NPSHr Temperature @ T,,= EPU (1 87.3°F)

CS Pumps A/C - 3125 gpm each, B/D - 0 Temperature @ 10 minutes EPU (155.4°F)

RHR B/D Pumps - 6500 gpm each, A/C - 0 Temperature where NPSHa = NPSH, Temperature @DTmx EPU (187.3°F)

CS Pumps A/C - 3125 gpm each, B/D - 0 Temperature @ 166°F RHR AJB/C/D Pumps - 6500 gpm each ATWS Pump/Flow Combinations HPCI Pump Flow - 4500 gpm Temperature @ 214.6 0 F(EPU Task Repon RHR AIB/CID Pumps - 6500 gpm each T0902)

Appendix R Pump/Flow Combinations One RHR Pump (non specific) - 6500 gpm Temperature @ 227°F (EPU Task Repori T06] 1)

SBO Pump/Flow Combinations =

One RHR Pump (non specific) - 6500 gpm Temperature @ 197.3TF (EPU Task Report

._ _._. T0903)

ENCLOSURE 7 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 2 AND 3 CONTAINMENT CALCULATION FOR NPSH EVALUATIONS Following are the inputs, assumptions, methodology, and results for the containment calculations performed for input into the NPSH evaluations. The calculations are performed with assumptions which maximize the suppression pool temperature.

This calculation however differs from the EPU DBA LOCA containment calculation described in PUSAR Section 4.1, "Containment System Performance," in that this calculation uses inputs, which minimize the resultant containment (wetwell airspace) pressure.

Key Analysis Inputs TABLE 7-1

1. Reactor Power 102% of EPU power 4031 MWt

2. Reactor Steam Dome Pressure 1055 psia

3. Decay Heat ANS 5.1 - 1979 +2a

4. Initial Suppression Pool volume 121,500 ft3 corresponding to minimum suppression pool level

5. Drywell Volume 159,000 ft3

6. Initial Wetwell Airspace Volume 129,300 ft3

7. Initial Drywell Pressure 15.5 psia

8. Initial Drywell Temperature 150 0F

9. Initial Wetwell Airspace Temperature 95 0F

10. Initial Wetwell Airspace Pressure{ 14.4 psia

11. Initial Suppression Pool Temperature 95 0F E7-1

TABLE 7-1

12. Initial Drywell Relative Humidity 100%

13. Initial Wetwell Relative Humidity 100%

14. Ultimate Heat Sink/RHR Service Water 950 F Temperature

15. RHR Heat Exchanger K value 223 Btu/sec- 0 F

16. Pump Heat Per RHR/LPCI Pump 2000 hp

17. Pump Heat Per LPCS 600 hp Analysis Method The GE SHEX code is used to calculate the containment response, including suppression pool temperature and wetwell airspace pressure.

Analysis Description The DBA LOCA for NPSH is analyzed for two time periods: up to 600 seconds (no containment sprays) called "short-term" DBA LOCA for NPSH and after 600 seconds (containment sprays on) called "lona-term" DBA LOCA for NPSH. For the short-term, all ECCS pumps are assumed to be operating, as the worst assumption, whereas the long-term analysis assumes that only one RHR loop (2 RHR pumps and 2 SW pumps) is operating.

E7-2

Assumptions for DBA LOCA Short-Term NPSH Evaluation TABLE 7-2

1. The break is modeled as an This assumption instantaneous double-ended guillotine would produce a break of a recirculation discharge peak suppression line (1.94 ft2 ). pool temperature and a minimum containment pressure.

2. Containment heat sinks are included Heat transfer to in the model. the wetwell and drywell heat structures decreases the containment pressure, which is worse for NPSH calculations

3. The four LPCI pumps operate during Minimize the the event, with the flow from two pressure response.

pumps injected into the broken loop (going directly to the drywell through the break) at 11,000 gpm/pump. The other two pumps inject into the intact loop at 10,000 gpm/pump.

4. The four LPCS pumps operate during Minimize the the event injecting 3125 gpm/pump. pressure response.

5. Initial drywell and wetwell pressures Minimize the are at their minimum expected values pressure response.

of 15.5 psia and 14.4 psia, respectively.

6. Initial drywell relative humidity is Minimize the mass at its maximum expected value of of non-condensa'ole 100%. gas to minimize the pressure response.

E7-3

TABLE 7-2

7. Heat transfer between the wetwell This is a airspace and suppression pool is conservative mechanistically calculated. approach for determination of wetwell temperature and pressure for NPS3H.

8. No RHR heat exchanger operation for No operator action the short-term analysis time period before 600 of 600 seconds. seconds.

9. Containment mass leakage of 2%/day Minimize the was used to evaluate the impact on containment the wetwell pressure. pressure.

Assumptions for DBA LOCA Long-Term NPSH Evaluation TABLE 7-3

1. The break is modeled as an This assumption instantaneous double-ended guillotine would produce a break of a recirculation suction line peak suppression (4.2 ft2 ). pool temperatures and a minimum containment pressure.

2. RHR cooling is initiated for Minimize the containment spray with 2 RHR pumps pressure response.

(5,850 gpm/pump), 2 SW pumps, 950 F SW temperature, and a heat exchanger K-value of 223 BTU/sec-0 F. The RHR pump flow is split 95%/5% between drywell and wetwell spray.

3. Two LPCI pumps actuate and provide Minimize the 9,000 gpm/pump to control RPV level pressure response.

for the first 600 seconds of the event.

E7-4

TABLE 7-3

4. Two LPCS pumps actuate and provide Minimize the 3,550 gpm/pump to control RPV level pressure response.

throughout the event.

5. Initial drywell and wetwell pressures Minimize the are at their minimum expected values pressure response.

of 15.5 psia and 14.4 psia, respectively.

6. Initial drywell relative humidity is Minimize the mass at its maximum expected value of 100% of non-condensable gas to minimize the pressure response.

7. Heat transfer between the wetwell This is a airspace and suppression pool is conservative mechanistically calculated. approach for determination of wetwell temperature and pressure for NPSH.

8. Containment mass leakage of 2%/day Minimize the was used to evaluate the impact on containment the wetwell pressure. pressure.

Analysis Results The results of the SHEX short-term and long-term containment analyses for evaluating NPSH, including suppression pool temperature and wetwell airspace pressure, are provided in Attachment A to this enclosure.

E7-5

ATTACHMENT A:

DBA LOCA SHORT-TERM AND LONG-TERM CONTAINMENT ANALYSIS SUPPRESSION POOL TEMPERATURE AND WETWELL PRESSURE FOR NPSH EVALUATIONS Note:

1. Adjusted wetwell airspace pressure including 2% leakage per day.

A.1: Short-Term Results for Input to NPSH Evaluation tTABLE 7-A.1 0.00 14 40  ! 95.00 14.40 0.25 14t86 95.02 14.86 0.87 17 72 95.16 17.72 1.50 20145 95.37 I 20.45 2.59 24.07 95.83' 24.07 4.15 27146 96.61 i 27.46 6.65 30.58 98.07 30.58 11.40 331 09 101.'20 33.09 16.90 34 10 105.00 34.10 26.90 34196 111.70 34.96 36.40 35161 117.20 35.61 47.65 36!34 123.00 36.34 54.34 36.73 125.90 36.73 66.;59 37135 130.30 37.35 73.59 37165 132.30 J 37.65 79.09 37186 133.60'. 37.86 84.21 38 I04 134.70t38.04 88.06 38 17 135 40,3 38.16 91.34 38114 135 90'!l 38.14 93.i25 38 112 136.20 38.12 94.66 38.10 136.30 38.09 95.53 38.08 136.40 38.08 E7-6

,iTABLE 7-A.1

-i II 96.22 38.07 136.40 38.07 96.94 38.06 136.40 38.06 97.81 38.04 136.40 38.04 98.91 38.02 136.40 38.02 101.31 37.98 136.40 37.98 103.81 37.95 136.40 37.95 106.31 37.92 136.40 37.91 108.87 37.89 136.40 37.89 111.47 37.56 136.40 37.56 113.97 37.03 136.50 37.03 116.47 36.54 136.60 36.54 118.97 36.01 136.80 36.01 121.47 35.48 136.90 35.48 123.97 34.95 137.00 34.95 126.47 34.42 137.20 34.42 128.97 33.91: 137.30 33.91 131.47 33.40 137.50 33.40 133.97 32.88' 137.60 32.88 136.47 32.41 137.80 32.41 138.97 31.92 138.00 31.91 141.47 31.42 138.20 31.42 143.97 30.99 138.40 30.99 146.47 30.56 138.60 30.56 148.97 30.11 138.80 30.11 151.47 29.67' 139.00 29.67 153.97 29.27 139.20 29.27 156.47 28.87 139.40 28.87 158.97 28.'49 139.60 28.48 161.47 28Jl11 139.70 28.11 163.97 27.174 139.90 27.74 166.47 27.38 140.20 27.38 168.97 27.02 140.40 27.02 E7-7

TABLE 7-A.1 171.47 26.66 140.60 26.66 173.97 26.32 140.80 26.32 176.47 25.98 141.00 25.98 178.97 25.65 141.20 25.65 181.47 25.33 141.40 25.33 183.97 25.02 141.60 25.02 186.47 24.70 141.80 24.69 188.97 24.39 142.00 24.39 191.47 24.06 142.30 24.06 193.97 23.73 142.50 23.73 196.47 23.41 142.70 23.41 198.97 23.10 142.90 23.10 201.84 22.73 143.10 22.72 204.72 22.39 143.30 22.39 207.72 22.03 143.50 22.03 210.59 21.71 143.70 21.71 213.34 21.40 143.90 21.40 215.97 21.13 144.10 21.13 218.72 20.86 144.30 20.85 221.22 20.60 144.50 20.59 223.72 20.35 144.60 20.34 226.28 20.10 144.80 20.10 229.09 19.89 144.90 19.89 231.97 19.63 145.10 19.63 234.84 19.43 145.30 19.42 237.91 19.20 145.40 19.20 240.50 19.02 145.50 19.02 243.00 18.85 145.70 18.85 245.62 18.68 145.80 18.67 248.34 18.53 145.90 18.53 251.97 18.34 146.10 18.34 254.94 18.18 146.20 18.18 E7-8

TABLE 7 -A. 1 257.44 18.07 146.30 18.07 259.66 17.99 146.40 17.99 264.12 17.95 146.60 17.94 274.25 17.98 147.10 17.98 281.62 18.00 147.50 18.00 287.12 18.02 147.70 18.02 292.00 18.03 147.90 18.03 296.94 18.04 148.00 18.04 301.19 18.02 148.20 18.02 304.94 17.95 148.30 17.94 309.00 17.86 148.50 17.86 313.06 17.79 148.60 17.79 316.81 17.71 148.80 17.71 320.81 17.64 148.90 17.64 325.06 17.56 149.10 17.56 329.25 17.51 149.20 17.51 333.44 17.44 149.40 17.44 337.87 17.39 149.50 17.39 342.31 17.33 149.70 17.33 347.19 17.28 149.80 17.28 351.75 17.23 149.90 17.23 356.25 17.17 150.10 17.16 360.87 17.114 150.20 17?114 365.62 17.110 150.30 17110 370.00 17.0,7 150.50 17!06 374.87, 17.04 150.60 17104 379.62 17.02 150.70 17!01 385.06 16.97 150.90 16.96 389.871 16.9.6 151.00 16.196 394.87 16.93 151.10 16192 399.94 16.92 151.20 16.92 404.87 16.90 151.30 16.90 E7-9

TABLE 7-A.1 409.75 16.87 151.50 16.87 414.75 16.87 151.60 16.87 419.62 16.87 151.70 16.87 424.50 16.84 151.80 16.84 429.50 16.84 151.90 16.84 434.50 16.84 152.00 16.83 439.87 16.83 152.10 16.83 445.25 16.83 152.20 16.83 450.50 16.83 152.30 16.83 455.87 16.83 152.40 16.83 461.37 16.83 152.60 16.82 467.00 16.82 152.70 16.82 472.56 16.82 152.80 16.82 478.25 16.82 152.90 16.82 483.75 16.82 153.00 16.82 489.50 16.82 153.10 16.81 495.06 16.82 153.30 16.81 500.87 16.81 153.40 16.81 506.62 16.81 153.50 16.81 512.62 16.81 153.60 16.81 518.37 16.81 153.70 16.81 524.25 16.81 153.90 16.81 530.06 16.81 154.00 '16.81 535.81 16.81 154.10 16.81 541.81 16.81 154.20 16.81 547.69 16.81 154.40 16.81 553.69 16.81 154.50 16.81 559.69 16.81 154.60 16.81 565.69 16.81 154.70 16.81 571.69 16.81 154.80 16.81 577.62 16.81 155.00 16.81 583.62 16.81 155.10 16.81 E7-10

TABLE 7-A.1 589.62 1 16.81 1 155.20 1 16.81 595.62 16.81 155.30 16.81 600.12 16.81 155.40 16.81 A.2: Long-Term Results for Input to NPSH Evaluation TABLE 7-A.2 0.00 14.40 95.00 14.40 0.52 17.16 95.20 17.16 1.52 23.84 96.11 23.84 4.96 32.32 100.60 32.32 12.21 34.96 111.00 34.96 23.83 36.84 125.90 36.84 32.33 37.24 131.90 37.24 36.57 37.33 133.30 37.33 37.29 37.35 133.40 37.35 40.91 37.47 134.40 37.47 43.98 37.56 135.10 37.56 46.48 37.64 135.60 37.64 48.98 37.70 136.10 37.70 52.60 37.81 136.80 37.81 56.48 37.93 137.40 37.93 60.16 38.05 138.00 38.05 64.10 38.17 138.50 38.17 67.48 38.26 138.90 38.26 70.85 38.32 139.30 38.32 73.51 38.34 139.60 38.34 76.10 38.36 139.80 38.35 78.79 38.37 140.00 38.37 81.54 38.38 140.30 38.38 84.01 38.39 140.50 38.39 E7-11

TABLE 7-A.2 85.91 38.4u 140.60 38.40 87.41 38.40 140.70 38.40 88.66 38.41 140.70 38.41 89.91 38.42 140.80 38.42 91.19 38.42 140.80 38.42 92.54 38.42 140.80 38.42 93.88 38.43 140.90 38.42 95.29 38.43 140.90 38.43 96.73 38.44 140.90 38.44 98.13 38.44 141.00 38.44 99.63 38.45 141.00 38.45 110.79 38.56 141.30 38.56 123.19 38.38 141.40 38.38 135.69 38.06 141.50 38.06 148.19 37.74 141.60 37.74 160.19 37.50 141.80 37.50 172.91 37.44 142.00 37.43 185.32 37.04 142.30 37.04 197.82 36.64 142.60 36.64 210.32 36.34 142.80 36.33 222.82 36.04 143.00 136.04 235.32 35.:73 143.10 :35.73 247.82 35*143 143.30 35.43 260.26 35.;13 143.40 35.13 272.76 34.J83 143.50 .34.83 285.26 34.55 143.60 34.54 297.76 34.35 143.70 34.35 310.01 34.19 143.80 i34.19 322.51 33.75 144.00 33.75 335.01 33.139: 144.20 33.39 347.23 32.94 144.50 32.94 359.41 32.55 144.80 32.55 E7-12

TABLE 7-A.2

! I 371.63 32.14 ' 145.10 32.14 383.63 31.;78 145.50 31.78 395.79 31.40 145.80 31.40 408.10 31.00 146.20 30.99 420.23 30.66 146.60 30.66 432.16 30.26 147.00 30.26 444.10 29.94 147.40 29.93 456.13 29.59 147.80 29.58 468.16 29.25 148.20 29.24 480.38 28.92 148.60 28.91 492.79 28.53 149.10 28.52 505.29 28.24 149.50 28.24 517.79 27.90 149.90 27.90 530.29 27.56 150.30 27.56 542.79 27.30 150.70 27.29 555.60 26.96 151.10 26.96 568.54 26.68 151.50 26.68 582.79 26.35 152.00 26.35 596.23 26.02 152.40 26.02 607.18 24.43 152.80 24.43 618.52 22.64 153.30 22.63 630.43 21.94 153.80 21.94 642.18 21.16 154.40 21.15 654.08 20.49 154.90 20.49 667.40 19.96 155.50 19.95 681.12 19.57 156.00 19.57 695.49 19.28 156.40 19.28 711.08 19.04 156.90 19.04 726.52 18.'82 157.30 18.82 742.71 18.67 157.70, 18.67 760.62 18.59 158.10 18.59 780.77 18.67 158.60 18.67 E7-13

TABLE 7-A.2 802.55 18.75 159.00 18.74 821.49 18.58 159.30 18.58 844.58 18.68 159.70 18.68 867.08 18.76 159.90 18.75 886.77 18.80 160.10 18.80 903.90 18.84 160.20 18.84 919.52 18.87 160.40 18.87 942.33 18.91 160.50 18.91 966.08 18.94 160.70 18.94 990.33 18.98 160.90 18.97 1014.96 19.01 161.10 19.00 1039.27 19.04 161.30 19.04 1063.46 19.08 161.50 19.07 1087.59 19.10 161.60 19.10 1111.59 19.13 161.80 19.12 1135.27 19.15 162.00 19.14 1159.84 19.17 162.20 19.17 1183.96 19.20 162.30 19.19 1208.27 19.22 162.50 19.22 1232.59 19.25 162.70 19.25 1257.02 19.28 162.80 19.27 1281.55 19.28 163.00 19.27 1306.15 19.28 163.20 19.27 1330.68 19.28 163.30 19.27 1355.71 19.28 163.50 19.28 1380.55 19.29 163.70 19.28 1404.90 19.29 163.80 19.29 1429.43 19.30 164.00 19.29 1455.02 19.30 164.10 19.30 1478.80 19.31 164.30 19.30 1503.27 19.31 164.40 19.31 1527.87 19.32 164.60 19.31 E7-14

TABLE 7-A.2 1552.40 19.32 164.80 19.31 1577.30 19.32 164.90 19.31 1600.90 19.32 165.10 19.31 1624.74 19.32 165.20 19.31 1647.68 19.29 165.30 19.28 1671.99 19.32 165.50 19.31 1695.40 19.31 165.60 19.31 1718.46 19.28 165.80 19.28 1741.65 19.32 165.90 19.31 1765.30 19.31 166.00 19.31 1789.59 19.31 166.20 19.31 1814.74 19.32 166.30 19.31 1839.34 19.32 166.50 19.31 1864.93 19.32 166.60 19.32 1889.02 19.32 166.70 19.32 1914.80 19.32 166.90 19.32 1941.15 19.33 167.00 19.32 1966.37 19.33 167.20 19.32 1992.71 19.33 167.30 19.33 2037.93 19.31 167.50 19.30 2090.24 19.32 167.80 19.31 2142.21 19.35 168.10 19.34 2193.77 19.36 168.30 19.35 2245.62 19.39 168.60 19.38 2297.49 19.39 168.80 19.38 2347.46 19.42 169.10 19.41 2398.74 19.45 169.30 19.44 2448.74 19.44 169.50 19.44 2498.84 19.47 169.80 19.46 2548.74 19.50 170.00 19.49 2597.55 19.50 170.20 19.49 2647.15 19.53 170.40 19.52 E7-15

TABLE 7-A.2

... ago, 2695.90 19.53 170.70 19.52 2745.74 19.56 170.90 19.55 2794.99 19.56 171.10 19.55 2844.52 19.60 171.30 19.59 2893.46 19.61 171.50 19.59 2942.99 19.64 171.70 19.63 2992.30 19.65 171.90 19.64 3041.55 19.66 172.10 19.65 3091.40 19.69 172.30 19.68 3140.52 19.69 172.50 19.68 3189.59 19.69 172.70 19.68 3239.43 19.73 172.80 19.72 3288.49 19.73 173.00 19.71 3338.09 19.75 173.20 19.74 3387.40 19.74 173.40 19.73 3436.99 19.76 173.60 19.75 3486.96 19.78 173.70 19.77 3536.55 19.80 173.90 19.78 3585.99 19.79 174.10 19.77 3635.84 19.81 174.20 19.79 3685.09 19.80 174.40 19.78 3735.18 19.82 174.60 19.80 3785.77 19.84 174.70 19.82 3835.59 19.83 174.90 19.82 3885.43 19.85 175.00 19.84 3934.74 19.84 175.20 19.83 3985.09 19.86 175.30 19.85 4034.77 19.85 175.50 19.84 4084.18 19.88 175.60 19.86 4134.27 19.90 175.80, 19.88 4183.99 19.92 175.90 19.90 4234.21 19.93 176.10 19.92 E7-16

TABLE 7-A.2 4284.30 19.95 176.20 19.93 4334.24 19.94 176.30 19.92 4383.90 19.95 176.50 19.94 4431.74 19.97 176.60 19.95 4481.02 19.98 176.70 19.97 4530.99 20.00 176.80 19.98 4580.46 20.02 177.00 20.00 4630.43 20.04 177.10 20.02 4681.02 20.05 177.20 20.04 4731.37 20.07 177.40 20.06 4781.59 20.09 177.50 20.07 4831.68 20.11 177.60 20.09 4882.09 20.13 177.70 20.11 4931.93 20.14 177.80 20.13 4981.96 20.16 178.00 20.14 5031.71 20.14 178.10 20.13 5081.68 20.16 178.20 20.14 5131.77 20.18 178.30 20.16 5182.49 20.20 178.40 20.18 5230.27 20.21 178.50 20.19 5277.87 20.23 178.60 20.21 5323.15 20.26 178.70 20.24 5368.52 20.25 178.80 20.23 5411.12 20.23 178.90 20.21 5457.09 20.26 179.00 20.24 5506.99 20.29 179.10 20.27 5557.02 20.32 179.20 20.30 5607.90 20.36 179.30 20.34 5658.90 20.41 179.40 20.39 5709.77 20.40 179.50 20.38 5760.49 20.42 179.60 20.40 5810.87 20.41 179.70 20.39 E7-17

i TABLE 7-A.2 5857.21 .20.42 179.80 20.'40 5907.21 20.42 179.90 20.40 5957.24 20.44 180.00 20.41 6006.87 20.43 180.10 20.41 6057.02 :20.45 180.20 20.43 6106.80 20.47 180.30 20.44 6155.93 :20.46 180.40 20.44 6205.59 20.48 180.50 20.45 6252.99 20.49 180.50 20.47 6303.27 '20.51 180.60 20.'48 6352.93 20.52 180.70 20.50 6402.46 20.54 180.80 20.52 6452.62 '20.55 180.90 20.53 6481.46 20.56 180.90 20.54 6506.46 20.58 181.00 20.55 6550.77 i20.56 181.00 20.53 6601.40 ,20.59 181.10 20.57 6636.30 .20.59 181.20 20.57 6661.30 i20.61 181.20 20.59 6686.30 20.62 181.30 20.60 6732.43 ,20.60 181.30 20.58 6782.43 120.63 181.40 20 !61 6825.34 ,20.63 181.50 20.!61 6850.34 120.64 181.50 20.!62 6875.34 120.66 181.50 20!63 6900.34 120.67 181.60 20 !64 6944.09 120.64 181.60 20'61 6994.46 20.66 181.70 20.64 7045.09 1:20.69 181.80 20166 7080.05 120.68 181.80 20!65 7105.05 20.69 181.90 20.66 7130.05 20.70 181.90 20.67 E7-18

TABLE 7-A.2 7155.05 20.70 182.00 20.68 7180.05 20.71 182.00 20.68 7228.68 20.68 182.10 20.65 7279.55 20.70 182.10 20.68 7329.68 20.72 182.20 20.69 7369.96 20.71 182.30 20.68 7394.96 20.72 182.30 20.69 7419.96 20.73 182.30 20.70 7444.96 20.73 182.40 20.71 7469.96 20.74 182.40 20.71 7494.96 20.75 182.40 20.72 7519.96 20.75 182.40 20.72 7567.46 20.72 182.50 20.70 7617.46 20.74 182.60 20.71 7667.71 20.76 182.60 20.73 7718.21 20.78 182.70 20.75 7743.24 20.76 182.70 20.73 7768.24 20.77 182.80 20.74 7793.24 20.77 182.80 20.75 7818.24 20.78 182.80 20.75 7843.24 20.78 182.90 20.75 7868.24 20.79 182.90 20.76 7893.24 20.79 182.90 20.76 7930.62 20.75 183.00 20.72 7980.74 20.77 183.00 20.74 8030.74 20.78 183.10 20.75 8081.37 20.80 183.10 20.77 8131.37 20.81 183.20 20.78 8158.46 20.80 183.20 20.77 8183.46 20.80 183.30 20.77 8208.46 20.81 183.30 20.78 8233.46 20.81 183.30 20.78 E7-19

TABLE 7-A.2 8258.46 20.82 183.30 20.79 8283.46 20.82 183.40 20.79 8308.46 20.82 183.40 20.79 8333.46 20.83 183.40 20.80 8358.46 20.83 183.40 20.80 8383.46 20.83 183.50 20.80 8408.46 20.83 183.50 20.80 8433.46 20.83 183.50 20.80 8458.46 20.83 183.50 20.80 8483.46 20.84 183.60 20.81 8508.46 20.84 183.60 20.81 8533.46 20.84 183.60 20.81 8558.46 20.84 183.60 20.81 8583.46 20.84 183.70 20.81 8608.46 20.84 183.70 20.81 8633.46 20.84 183.70 20.81 8658.46 20.84 183.70 20.81 8683.46 20.85 183.80 20.82 8708.46 20.85 183.80 20.82 8733.46 20.85 183.80 20.82 8758.46 20.85 183.80 20.82 8783.46 20.85 183.90 20.82 8808.46 20.85' 183.90 20.82 8833.46 20.85 183.90 20.82 8858.46 20.85 183.90 20.82 8883.46 20.85 184.00 20.82 8916.77 20.81 184.00 20.78 8966.77 20.83 184.00 20.80 9016.77 20.85 184.10 20.82 9066.77 20.87 184.10 20.84 9102.49 20.86 184.20 20.83 9127.49 20.87 184.20 20.83 E7-20

TABLE 7-A.2 9152.49 20.87 184.20 20.84 9177.49 20.88 184.20 20.85 9202.49 20.88 184.30 20.85 9227.49 20.89 184.30 20.86 9266.93 20.85 184.30 20.81 9316.93 20.86 184.40 20.83 9366.93 20.88 184.40 20.85 9416.93 20.89 184.40 20.86 9466.93 20.91 184.50 20.87 9494.21 20.89 184.50 20.86 9519.21 20.90 184.50 20.86 9544.21 20.90 184.50 20.87 9569.21 20.91 184.60 20.87 9594.21 20.91 184.60 20.88 9619.21 20.91 184.60 20.88 9644.21 20.92 184.60 20.88 9669.21 20.92 184.60 20.88 9705.27 20.87 184.70 20.84 9755.27 20.89 184.70 20.85 9805.27 20.90 184.70 20.86 9855.27 20.91 184.80 20.88 9905.27 20.92 184.80 20.89 9952.62 20.91 184.90 20.87 9977.62 20.92 I 184.90 20.88 10027.62 20.93 184.90 20.89 10152.62 20.94 185.00 20.90 10277.62 20.95 185.10 20.91 10402.62 20.95 185.20 20.91 10527.62 20'.95 185.20 20.91 10652.62( 20.95 185.30 20.91 10842.43 20.94 185.40 20.90 11048.02 20.96 185.60 20.92 E7-21

TABLE 7-A.2 11173.02 20.98 185.60 20.94 11298.02 20.98 185.70 20.94 11423.02 20.98 185.70 20.94 11548.02 20.97 185.80 20.93 11673.02 20.97 185.80 20.93 11798.02 185.90 20.93 11923.02 20.96 185.90 20.92 12048.02 20.96 186.00 20.92 12173.02 20.96 186.00 20.91 12298.02 20.95 186.10 20.91 12423.02 20.95 186.10 20.90 12548.02 20.94 186.20 20.90 12673.02 20.94 186.20 20.89 12798.02 20.93 186.20 20.89 12932.40 20.93 186.30 20.89 13182.40 20.99 186.30 20.94 13432.05 20.99 186.40 20.94 13682.05 21.00 186.40 20.96 13932.05 21.01 186.50 20.96 14182.05 21.00 186.50 20.95 14432.05 21.00 186.50 20.95 14682.05 20.99 186.60 20.94 14932.05 20.98 186.60 20.93 15182.05 20.97 186.60 20.92 15432.05 20.96 186.60 20.91 15682.05 20.96 186.60 20.91 15932.05 20.95 186.60 20.89 16182.05 20.93 186.60 20.88 16432.06 20.92 186.60 20.87 16682.06 20.91 186.60 20.86 16932.06 20.90 186.60 20.84 17182.06 20.89 186.60 20.83 E7-22

TABLE 7-A.2 17432.06 20.88 186.60 20.82 17682.06 20.87 186.60 20.81 17932.06 20.86 186.60 20.80 18182.06 20.85 186.60 20.78 18432.06 20.84 186.60 20.78 18682.06 20.83 186.50 20.77 18932.06 20.82 186.50 20.76 19182.06 20.82 186.50 20.75 19432.06 20.81 186.50 20.74 19682.06 20.80 186.40 20.73 19932.06 20.80 186.40 20.73 20182.06 20.79 186.40 20.72 20432.06 20.78 186.30 20.71 20682.06 20.79 186.30 20.72 20932.06 20.80 186.30' 20.73 21182.06 20.85 186.20 20.77 21431.77 20.89 186.20 20.82 21680.81 20.93 186.10 20.86 21929.18 20.95 186.10 20.87 22177.37 21.00 186.00 20.92 22426.49 20.99' 186.00 20.92 22676.49 20.98 185.90 20.91 22926.49 20.94' 185.90 20.86 23176.49 20.891 185.90 20.81 23426.49 20.83 185.80 I2.75 23676.49 20.79' 185.80 20.71 23926.49 20.77 185.80 20.69 24176.49 20.76' 185.70; 20.67 24426.49 20.74, 185.70 20.66 24676.49 20.74, 185.70 20.65 24926.49 20.73 185.60 20.65 25176.49 20.73 185.60 20.64 E7-23

TABLE 7-A.2 25426.49 20.72 185.60 20.63 25676.49 20.72 185.50 20.63 25926.49 20.72 185.50 20.63 26176.49 20.71 185.50 20.62 26426.49 20.70 185.50 20.61 26676.49 20.68 185.40 20.59 26926.49 20.66 185.30 20.57 27176.49 20.65 185.30 20.55 27426.49 20.63 185.20 20.54 27676.49 20.62 185.20 20.53 27926.49 20.61 185.10 20.51 28176.49 20.60 185.00 20.50 28426.49 20.58 185.00 20.49 28676.43 20.57 184.90 20.47 28926.43 20.56 184.80 20.46 29176.43 20.54 184.70 20.44 29426.43 20.53 184.70 20.43 29676.43 20.51 184.60 20.41 29926.43 20.51 184.50 20.40 30176.43 20.49 184.50 20.39 30426.43 20.47 184.40 20.37i 30676.43 20.46 184.30 20.36 30926.43 20.44 184.20 20.34 31176.43 20.43 184.10 20.32 31426.43 20.41 184.10 20.311 31676.43 20.40 184.00 20.291 31926.43 20.38 183.90 20.28 32176.43 20.37 183.80 20.26, 32426.43 20.36 183.70 20.251 32676.43 20.34 183.601 20.23' 32926.43 20.33 183.60 20.21 33176.43 20.31 183.50 20.20 E7-24

TABLE 7-A.2 , ,j 33426.43 20.30 183.40 20.18 33676.43 20.28 183.30 20.17 33926.43 20.27 183.20 20.15 34176.43 20.25 183.10 20.14 34426.43 20.24 183.00 20.12 34676.43 20.22 182.90 20.11 34926.43 20.21 182.80 20.09 35176.43 20.19 182.70 20.07 35426.43 20.17 182.70 20.05 35676.43 20.16 182.60 20.04 35926.43 20.14 182.50 20.02 36176.43 20.12 182.40 20.00 36426.43 20.11 182.30 19.99 36676.43 20.10 182.20 19.97 36926.43 020.08 182.10 19.96 37176.43 20.07 182.00 19.94 37426.43 20.05 181.90 19.93 37676.43 20.03 181.80 19.91 37926.43 20.02 181.70 19.89 38176.43 20.00 181.60 19.87 38426.43 ;19.98 181.50 19.85 38676.43 19.97 181.40 19.84 38926.43 19.95 181.30 19.82 39176.43 19.93 181.20 19.80 39426.43 19.91 181.10b 19.78 39676.43 19.90 180.90 19.76 39926.43 19.88 180.80 19.75 40176.43 19.86 180.70 19.73:

40426.43 19.85 180.60 19.71 40678.81 19.83 180.50 19.69, 40929.93 19.81 180.40 19.68 41179.93 19.79 180.30 19.66 E7-25

TABLE 7-A.2 41429.93 19.78 180.20 19.64 41679.93 19.77 180.10 19.63 41929.93 19.75 180.00 19.61 42179.93 19.74 179.90 19.60 42429.93 19.72 179.80 19.58 42679.93 19.70 179.70 19.56 42929.93 19.69 179.60 19.54 43179.93 19.67 179.50 19.53 43429.93 19.66 179.40 19.51 43679.93 19.64 179.30 19.49 43929.93 19.62 179.20 19.48 44179.93 19.61 179.10 19.46 44429.93 19.59 179.00 19.44 44679.93 19.58 178.90 19.43 44929.93 19.56 178.80 19.41 45179.93 19.55 178.70 19.40 45429.93 19.53 178.60 19.38 45679.93 19.52 178.50 19.36 45929.93 19.50 178.40 19.35 46179.93 19.49 178.30 19.33 46429.93 19.47 178.20 I 19.32 46679.93 19.46 178.10 19.30 46929.93 19.44 178.00 19.29 47179.93 19.43 177.90j,-1 -19.27 47429.93 19.41 177.80 19.26 47679.93 19.40 177.70 19.24 47929.93 19.39 177.60 19.23 48179.93 19.38 177.50 19.22 48429.93 19.36 177.40 i19.20 48679.93 19.35 177.30.: 19.19 48929.93 19.33 177.20 19.17 49179.93 19.32 177.10 19.16 E7-26

TABLE 7-A.2 49429.93 19.31 177.00 1 19.14 49679.93 19.29 176.90 19.13 49929.93 19.28 176.80 19.11 50179.93 19.27 176.70 19.10 50429.93 19.25 176.60 19.09 50679.93 19.24 176.50 19.07 50929.93 19.23 176.40 19.06 51179.93 19.21 176.30 19.04 51429.93 19.20 176.20 19.03 51679.93 19.19 176.10 19.02 51929.93 19.18 176.00 19.01 52179.93 19.16 175.90 18.99 52429.93 19.15 175.80 18.98 52679.93 19.14 175.70 18.96 52929.93 19.12 175.60 18.95 53179.93 19.11 175.60 18.94 53429.93 19.10 175.50 18.92 53679.93 19.08 175.40 18.91 53929.93 19.07 175.30 18.89 54179.93 19.06 175.20 18.88 54429.93 19.05 175.10 18.87 54679.93 19.03 175.00 18.85 54929.93 19.02 174.90 18.84 55179.93 19.01 174.80 18.83 55429.93 18.99 174.70 18.81 55679.93 18.98 174.60 18.80 55929.93 18.97 174.50 18.79 56179.93 18.96 174.40 18.77 56429.93 18.94 174.40 18.76 56679.93 18.93 174.30 18.75 56929.93 18.92 174.20 18.73 57179.93 18.91 174.10 18.72 E7-27

TABLE 7-A.2 157429.93 18.89 174.00 18.71 57679.93 18.88 173.90 18.69 57929.93 18.87 173.80 18.68 58179.93 18.86 173.70 18.67 58429.93 18.84 173.60 18.65 58679.93 18.83 173.50 18.64 58929.93 18.82 173.50 18.63 59179.93 18.81 173.40 18.62 59429.93 18.80 173.30 18.60 59679.93 18.78 173.20 18.59 59929.93 18.77 173.10 18.58 60179.93 18.76 173.00 18.56 60429.93 18.75 172.90 18.55 60679.93 18.74 172.80 18.54 60929.93 18.73 172.70 18.53 61179.93 18.72 172.70 18.52 61429.93 18.71 172.60 18.51 61679.93 18.69 172.50 18.49 61929.93 18.68 172.40 18.48 62179.93 18.67 172.30 18.47 62429.93 18.66 172.20 18.46 62679.93 18.65 172.10 18.45 62929.93 18.64 172.10 18.44 63179.93 18.63 172.00 18.43 63429.93 18.62 171.90 18.41 63679.93 18.61 171.80 18.40 63929.93 18.60 171.70 18.39 64179.93 18.59 171.60 18.38 64429.93 18.58 171.60 18.37 64679.93 18.57 171.50 18.36 64929.93 18.56 171.40 18.35 65179.93 18.55 171.30 18.34 E7-28

TABLE 7-A.2 65429.93 18.54 171.20 18.33 65679.93 18.53 171.20 18.31 65929.93 18.52 171.10 18.30 66179.93 18.51 171.00 18.29 66429.93 18.50 170.90 18.28 66679.93 18.49 170.80 18.27 66929.93 18.48 170.80 18.26 67179.93 18.47 170.70 18.25 67429.93 18.46 170.60 18.24 67679.93 18.45 170.50 18.23 67929.93 18.44 170.50 18.22 68179.93 18.43 170.40 18.21 68429.93 18.42 170.30 18.20 68679.93 18.41 170.20 18.19 68929.93 18.40 170.10 18.18 69179.93 18.39 170.10 18.17 69429.93 18.38 170.00 18.16 69679.93 18.37 169.90 18.15 69929.93 18.36 169.80 18.14 70179.93 18.35 169.80 18.13 70429.93 18.34 169.70 18.12 70679.93 18.33 169.60 18.11 70929.93 18.33, 169.60 18.10 71179.93 18.32 169.50 18.09 71429.93 18.31' 169.40 18.08 71679.93 18.30 169.30 18.07 71929.93 18.29 169.30 18.06 72179.93 18.28 169.20 18.05 72429.93 18.27: 169.10 18.04 72679.93 18.26 169.00 18.03 72929.93 18.25 169.00 18.02 73179.93 18.24 168.90 18.01 E7-29

TABLE 7-A.2 73429.93 18.24 168.80 18.00 73679.93 18.23 168.80 17.99 73929.93 18.22 168.70 17.98 74179.93 18.21 168.60 17.97 74429.93 18.20 168.50 17.96 74679.93 18.19 168.50 17.95 74929.93 18.18 168.40 17'.94 75179.93 18.17 168.30 17.93 75429.93 18.16 168.30 17'.92 75679.93 18.16 168.20 17.91 75929.93 18.15 168.10 17'.90 76179.93 18.14 168.10 17.89 76429.93 18.13 168.00 17.88 76679.93 18.12 167.90 17.87 76929.93 18.11 167.90 17.87 77179.93 18.10 167.80 17.86 77429.93 18.10 167.70 17.85 77679.93 18.09 167.60 17.84 77929.93 18.08 167.60 17.83 78179.93 18.07 167.50 17.82 78429.93 18.06 167.40 17.!81 78679.93 18.05 167.40 17.80 78929.93 18.05 167.30 17.79 79179.93 18.04 167.20 17 '78 79429.93 18.03 167.20 171 77 79679.93 18.02 167.10 17.17!77 79929.93 18.01 167.00 17'76 80179.93 18.00 167.00 . l17 175 80429.93 18.00 I 166L90 iI17.i74 80679.93 17.99 166.80: 11173 80929.93 17.98 166.80 17.72 81179.93 17.97 166.70 17.71 E7-30

TABLE 7-A.2 81429.93 17.97 166.70 17.70 81679.93 17.96 166.60 17.70 81929.93 17.95 166.50 17.69 82179.93 17.94 166.50 17.68 82429.93 17.93 166.40 17.67 82679.93 17.93 166.30 17.66 82929.93 17.92 166.30 17.65 83179.93 17.91 166.20 17.64 83429.93 17.90 166.10 17.64 83679.93 17.90 166.10 17.63 83929.93 17.89 166.00 17.62 84179.93 17.88 166.00 17.61 84429.93 17.87 165.90 17.60 84679.93 17.87 165.80 17.59 84929.93 17.86 165.80 17.59 85179.93 17.85 165.70 17.58 85429.93 17.84 165.60 17.57 85679.93 17.84 165.60 17.56 85929.93 17.83 165.50 17.56 86179.93 17.82 165.50 17.55 86400.06 17.82 165.40 17.54 E7-31

ENCLOSURE 8 TENNESSEE VALLEY AUTHORITY BROWNS FERRY NUCLEAR PLANT (BFN)

UNITS 2 AND 3 MkRKUP OF PUSAR SECTION 4.2.5 INDICATING CHANGES ASSOCIATED WITH REVISED NPSH CALCULATION This enclosure provides a markup of the text previously provided in the PUSAR regarding Emergency Core Cooling System (ECCS) net positive suction head (NPSH). The marked changes indicate the impact resulting from the revision to the NPSH calculation as described in the cover letter.

Changes are shown as follows:

• Deleted material is bold and is struck through. (deleted)

• New material is bold and double underlined.

PUSAR MARKUP 4.2.5 ECCS Net Positive Suction Head Following a LOCA, the RHR and CS pumps operate to provide the required core and containment cooling. Adequate margin (NPSH available minus NPSH required) is required during this period to ensure the essential pump operation. The limiting NPSH conditions occur during either short-term or long-term post-LOCA pump operation and depend on the total pump flow rates, debris loading on the suction strainers, and suppression pool temperature.

TVA previously requested containment overpressure credit for Browns Ferry Units 2 and 3 (Reference 16). In Reference 16, TVA indicated that the need for containment overpressure credit in the short term was based on RHR requirements, and in the long term was based on CS requirements. The pre-EPU analysis indicates that up to 3 psi of overpressure credit (considering whole number value) is required for the short-term case for RI-R pump operation to maintain adequate NPSH. One (1) psi of overpressure credit is currently required and approved for the long-term case for CS pump adequate NPSH.

E8-1

For both the pre-EPU and the EPU analyses, a maximized suppression pool temperature and a minimized containment pressure were assumed. EPU RTP operation increases the reactor decay heat, which increases the heat addition to the suppression pool following a LOCA. Therefore, changes in vapor pressure corresponding to the increase in suppression pool temperatures affect the NPSH margin. After 10 minutes, operation of the RHR pumps for containment cooling in the containment spray mode with continued operation of a CS loop for ECCS injection is also assumed.

The NPSH margins were calculated based on conservatively assuming RHR maximum flow rates and CS design flow rates during the short-term, and RHR and CS design flow rates during the long-term. The system flow rates for the short-term case are 42,000 gpm total RHR flow and 12,500 gpm total CS flow. The system flow rates for the long-term case are 13,000 gpm total RHR flow and 6,250 gpm total CS flow. The methodology used to determine the amount of debris generated and transported to the ECCS strainers is generally based on NEDO-32686, the BWROG Utility Resolution Guidance for ECCS Suction Strainer Blockage.

The minimum quantity of paint chips recommended by this guidance is 85 lbs. Browns Ferry has identified a maximum surface area of 157 ft2 for unqualified coatings within the primary containment which represents an additional 18 lbs. Therefore, a total of 103 lbs of strainer paint debris was used for sizing the strainers. This quantity did not change with EPU. Because the ECCS pump flow rates were unchanged for EPU, strainer approach velocities were not affected. Therefore, the debris loading on the suction strainers for EPU is the same as the pre-EPU condition. The assumptions in the ECCS NPSH calculations for friction loss, static head, strainer loss, flow, and NPSH required have not been changed since the issuance of the amendment related to NRC GL 97-04 (Reference 15).

The short-term EPU NPSH analysis (0 to 600 seconds) indicates that with a containment overpressure (suppression chamber air space pressure) credit of 3 psi the RHR pumps have adequate NPSH margin. The short-term analysis also indicates that greater than 3 psi of overpressure is available from the beginning of the event until approximately 350 seconds. From 350 seconds to 600 seconds, the short-term analysis (using inputs that conservatively maximized suppression pool temperature and minimized containment pressure) indicates an available overpressure of less than 3 psig. For the brief time that the sbeft.-term analysis indicates that less then 3 psi is &v ilablre the FIM o~nly require 2.5 psi. Adeallate margin existsa batmAren the

-~ecaured and the cantainment- n~reasre excent for theRX E8-2

in-c~tia ino th broen rc~i113lat-ion system niuinc

~yau the latt-er nortion of the DB& itoca short-Term analv~~

On aion of the HEEB nMnIM2 Mith a Aafna necratimre MESH marci (anwcox~imat-elv I n~il foir a short neriod of time L< IP imintes) will not-c~ause sianifirant damnace to the RH~Rn iniep~tiner into 1-he lbroken xercircrl~at~ion svstem Mining- -In add&ition, historica1 Hijggxica plant testing has demonstrated that the RHR pumps are capable of operating for short periods of time at NPSH values less than (approximately 9 feet) the manufacturer's required NPSH without degradation or substantial loss of flow. Therefore, RHR pump operation is not adversely affected by containment pressure less than 3 psi. This was previously presented for pre-EPU conditions and approved by the NRC in Reference 15. In Reference 15, the NRC stated that ""the use of 3 psi of containment overpressure above the initial airspace pressure is acceptable for the first 10 minutes after a LOCA." Reference 15 also concludes that CS pump operation is not affected by this lower containment overpressure during the!

short term.

The long-term EPU NPSH analysis (0 until the end of the event) indicates that up to -2 2, psi (considering~whole number valu +

containment overpressure credit is require'l otimn

~~re~uxe rcredt is reauirec¶ when the suppression pool temperature exceeds 46- =O to obtain adequate NPSH margin for the long-term operation of the CS pumps. This is an increase from the 1 psi of overpressure credit currently approved for pre-EPU conditions. The long-term analysis demonstrates that greater than 4 psi of containment overpressure is available during this period.

Tables 4-2 and 4-3 provide the results of the short-term and long-term containment response. Table 4-4 provides the suppression pool temperature and the required containment overpressure to maintain NPSH margins during the DBA LOCA for EPU conditions.

Based on the above, Browns Ferry is requesting approval of 3 psi of overpressure credit to meet both the short-term and long-tErm NPSH requirements. A single containment overpressure credit value is requested both to account for potential future contingencies and to provide consistency between the inputs tc the short- and long-term analyses. Other means to increase the NPSH margin were found unfeasible.

ene-MRm Vmp ip req~uired to operate~Oneatin of BEE~nis-A rzeA for NP2SI caonsideration= during the SBO-AW.ac em-en I Appendix R fire event. EPU RTP operation increases the reactor E8-3

decay heat, which increases the heat addition to the suppression pool following these events (see Sections 6.7.1_..3.1. and 9.3.2). As a result, the long-term peak suppression pool water temperature and peak containment pressure increase. The NPSH evaluation at these peak pool temperatures shows adequate NPSE margins during the SBO,_AMWS. and the-Appendix R events with containment overpressures of-E 2 psi 2.s.7nai and 10 psi, respectively.

The HPCI system primary function is to provide reactor inventory makeup water and assist in depressurizing the reactor during an intermediate or small break LOCA. The HPCI system can operate with suction from the suppression pool at a temperature below 1400 F during the first 10 minutes after initiation of the event.

EPU has an insignificant effect on the time for the suppression pool temperature to reach 140 0F. If the HPCI pump operates beyond the first 10 minutes following the event, the reactor operator may terminate HPCI pump operation when the suppression pool temperature reaches 140 0F. The HPCI pump NPSH margin remains adequate as long as the suppression pool temperature does not exceed 1400 F during HPCI operation.

HPCI system operation is credited during ATWS, tppendiw R, and SBO events. The suppression pool temperature does not affect the NPSH margin, because the HPCI pump takes suction from the CST during these events.

E8-4

Table 4-4 I

Browns Ferry EPU DEA-LOCA NPSH Margins and Containment Overpressure Credit 600 155. 4 2.46 Short-term analysis.

A.75 Overpressure required to meet RHR NPSH requirements 601 1:52.4 0 :956S Long-term analysis 44,95.O:7.8 0 6.20 Greater than 0psi of L~fl .~a £..~.overpressure required for long-term for CS pumps uoad to 7h-0909818 G63 0 greaterhhe 1 psi of overpressure reqeired1 for

___ ___ _ _ ___ ___ _ l n ; t enn- C pum p s es 14,700 48. 1.063 0 Peak Suppression Pool

_____________ fitemperature 37,00a :0. -- 6320- Less than-4-jQpsi of Ag~.L. overpressure required for 11 71 4long-term for CS pumps

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