ML17244A252

Fuel Cycle 21, Core Operating Limits Report, Revision 34

ML17244A252
Person / Time
Site:	Pilgrim
Issue date:	08/28/2017
From:	Perkins E Entergy Nuclear Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
Shared Package
ML17244A216	List: ML17244A252
References
2.17.059
Download: ML17244A252 (50)

Text

~Entergy Entergy Nuclear Operations, Inc.

Pilgrim Nuclear Power Station 600 Rocky Hill Road Plymouth. MA 02360 August 28, 2017 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

SUBJECT:

Pilgrim Fuel Cycle 21, Core Operating Limits Report, Revision 34 Pilgrim Nuclear Power Station Docket No. 50-293 Renewed License No. DPR-35 LETTER NUMBER 2.17.059

Dear Sir or Madam:

In accordance with Pilgrim Nuclear Power Station (PNPS) Technical Specification 5.6.5, Entergy Nuclear Operations , Inc. submits the attached Fuel Cycle 21 , Core Operating Limits Report, Revision 34, which provides cycle-specific limits for operating PNPS during Cycle 21 .

PNPS requests that Attachment 2 to this letter, which contains Trade Secret Information, be withheld from public disclosure in accordance with 10 CFR 2.390(b )( 1).

If you have any questions or require additional information, please contact me at (508) 830-8323.

There are no regulatory commitments contained in this letter.

Sincerely,

~~~,p~

Everett P. Perkins, Jr.

Manager, Regulatory Assurance EPP/mp This letter contains Proprietary Information -Attachment 2 is withheld from public disclosure per 10 CFR 2.390

Entergy Nuclear Operations , Inc. Letter No. 2.17.059 Pilgrim Nuclear Power Station Page 2 of 2 Attachments:

1. GNF letter,KGO-ENO-HK1-17-081 , Kimberly O'Connor (GNF) to Nela Szwarc (Entergy) , entitled "Pilgrim Nuclear Power Station Cycle 20 Core Operating Limits Report (COLR) Revision 33 and Cycle 21 COLR Revision 34, 35, and 36

- Proprietary and Non-Proprietary Versions," July 28 , 2017.

2. Enclosure 4, KGO-ENO-HK1-17-081 , Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34 , GNF Proprietary Information - Class II (Internal)

3. Enclosure 5, KGO-ENO-HK1-17-081, Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34, Non-Proprietary Information - Class I (Public)

4. Enclosure 6, KGO-ENO-HK1-17-081 , Affidavit for Enclosure 4, Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34, GNF Proprietary Information - Class II (Internal) cc: Mr. Daniel H. Dorman Regional Administrator, Region I U.S. Nuclear Regulatory Commission 2100 Renaissance Boulevard , Suite 100 King of Prussia, PA 19406-2713 Mr. John Lamb, Senior Project Manager Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 8 B1A Washington , DC 20555 NRC Senior Resident Inspector Pilgrim Nuclear Power Station Mr. John Giarrusso Jr.

Planning , Preparedness & Nuclear Section Chief Mass. Emergency Management Agency 400 Worcester Road Framingham , MA 01702 This letter contains Proprietary Information - Attachment 2 is withheld from public disclosure per 10 CFR 2.390

Attachment 1 Letter Number 2.17.059 GNF letter,KGO-ENO-HK1-17-081, Kimberly O'Connor (GNF) to Nela Szwarc (Entergy),

entitled "Pilgrim Nuclear Power Station Cycle 20 Core Operating Limits Report (COLR) Revision 33 and Cycle 21 COLR Revision 34, 35, and 36 - Proprietary and Non-Proprietary Versions,"

July 28, 2017

Proprietary Notice This letter transmits proprietary information in accordance with 10 CFR 2.390. Upon the removal of Enclosures 1, 4, 7, and 10, the balance of the letter may be considered non-proprietary.

GNi= Global Nuclear Fuel A .lninf V11ntur'°' nf r.F TMhiha A Mihlrhi Kimberly O'Connor Global Nuclear Fuel - Americas, LLC GNF Customer Project Manager Castie Hayne Road , Wilmington, NC 28401 KGO-ENO-HKl-17-081 July 28, 2017 Ms. Nela Szwarc cc: Lynn Leatherwood Entergy Nuclear Northeast Gary James 440 Ham ilton Road White Plains, NY 10601

SUBJECT:

Pilgrim Nuclear Power Station Cycle 20 Core Operating Limits Report (COLR) Revision 33 and Cycle 21 COLR Revision 34, 35, and 36 - Proprietary and Non- Proprietary Versions

REFERENCES:

1. Email from Szwarc, Kornelia (Entergy) to O'Connor, Kimberly (GNF),

Subject:

FW: COLR Proprietary/Non-Proprietary Versions - Mail 1 of 4, July 25, 2017, 12:52 pm.

2. Entergy Nuclear Operations, Inc. Fixed Services Agreement No. 50014434 for the Supply of Fuel and Fuel Related Work to PNP with Global Nuclear Fuel , as amended

("Fuel Contract").

Ms. Szwarc, By Reference 1. Global Nuclear Fuel - Americas, LLC (GNF) was requested to review and mark the proprietary content in the Pilgrim Nuclear Power Station (PNPS) Cycle 20 Core Operating Limits Report (COLR), Revision 33 and the PNPS Cycle 21 COLR Revisions 34, 35 , and 36, prepare a corresponding non-proprietary vers ion of each COLR, and provide an affidavit supporting the basis for the proprietary determination for each COLR.

Enclosed are the COLRs marked to indicate the GNF proprietary information, corresponding non-proprietary versions of the COLRs, and affidavits supporting the basis for the proprietary determination.

GNF's review is limited to a proprietary determination. GNF did not review the content of the COLRs for technical accuracy.

Enclosures 1. 4, 7, and 10 of this transmittal contain GNF proprietary information that should be handled in accordance with the proprietary information provisions contained in the Fuel Contract listed above (Reference 2). GNF customarily maintains this information in confidence and withholds it from public disclosure. The affidavits provided in Enclosures 3, 6, 9, and 12 identify that the designated information in Enclosures 1. 4, 7, and 10 have been handled and classified as proprietary to GNF. The designated information is suitable for submittal to the NRC when accompanied by the attached affidavits. GNF hereby requests that the designated information be withheld from public disclosure in accordance with the provisions of 10 CFR 2.390 and 9.17. Non-proprietary versions of the GNF information is provided in Enclosures 2, 5, 8, and 11. respectively.

KGO-ENO-HKl-17-081 Page 2 of 3 GNF requests that any transmittal of this proprietary information to the NRC be accompanied by the enclosed affidavit and proprietary notice. In order to maintain the applicability of the affidavit and to meet the requirements of 10 CFR 2.390, the transmittal to the NRC should:

1) faithfully reproduce the proprietary information,

2) preserve the proprietary annotations. and

3) include, at the top of the transmittal letter or in the subject line. the words similar to "Proprietary Information." If a cover sheet for enclosures is used. then the cover sheet for the enclosu re conta ining the proprietary information shou ld also state "Proprietary Information."

Based on past discussions with the NRC. GNF has been encouraged to request its customers to provide a paragraph simi lar to the fo ll owing paragraph in the customer letter transmitting proprietary information to the NRC in order to clearly indicate the proprietary nature of the information and to document the source of the proprietary information as indicated in the GNF affidavit.

"The enclosed documentation contains proprietary information as defined by 10 CFR 2.390.

GNF, as the owner of the proprietary information. has executed the enclosed affidavit. which identifies that the enclosed proprietary information has been handled and classified as proprietary, is customarily held in confidence, and has been withheld from public disclosure.

The proprietary information was provided to Entergy in a GNF transmitta l that is referenced by the affidavit. The proprietary information has been fa ithful ly reproduced in the enclosed documentation such that the affidavit remains applicable. GNF hereby requests that the enclosed proprietary information be withheld from public disclosure in accordance with the provisions of 10 CFR 2.390 and 9.17. A non-proprietary version of the documentation is also provided."

A signed copy of this letter is included in PLM Specification 004N3963 RO.

All information should be hand led in accordance with the proprietary information provisions contained in the Fuel Contract listed above in Reference 2.

Please let me know if you have questions or comments regarding this transmittal.

Sincerely, Kimberly O'Connor GNF-A Customer Project Manager

Enclosures:

1. Pilgrim Nuclear Power Station Cycle 20- Core Operating Limits Report, Revision 33 -

Proprietary

2. Pilgrim Nuclear Power Station Cycle 20 Core Operating Limits Report, Revision 33 -

Non-Proprietary

KGO-ENO-HKl-17-081 Page 3 of 3

3. Affidavit for Enclosure 1

4. Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34 -

Proprietary

5. Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34 -

Non-Proprietary

6. Affidavit for Enclosure 4

7. Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 35 -

Proprietary

8. Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 35 -

Non-Proprietary

9. Affidavit for Enclosure 7

10. Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 36 -

Proprietary

11. Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 36 -

Non-Proprietary

12. Affidavit for Enclosure 10

Attachment 3 Letter Number 2.17.059 , KGO-ENO-HK1-17-081, Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34, Non-Proprietary Information - Class I (Public)

ENCLOSURE 5 KGO-ENO-HK1-17-081 Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34 Non-Proprietary Information - Class I (Public)

INFORMATION NOTICE This is a non-proprietary version of Enclosure 4 of KGO-ENO-HK1-17-081 , which has the proprietary information removed . Portions of the document that have been removed are indicated by white space inside an open and closed bracket as shown here [[ ]].

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 (CYCLE 21)

LBDCR2015-007 Documents Approvals Information Notice This is a non-proprietary version of the Pilgrim Nuclear Power Station Core Operating Limits Report for Cycle 21 , which has GNF proprietary information removed . Portions of the document that have been removed are indicated by white space inside open and closed bracket as shown here [[ ]] .

Revision 34 Cycle 21 COLR Page 1 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 TABLE OF CONTENTS TITLE & COVER PAGE ............. ....... .... ............... ..... ...... .... ... ..... ..... .. ... ... ... .... ... .... ...... ... ...... ..... 1 TABLE OF CONTENTS .. .................... .. ... .. ... ... .. .. ......... ........ ... ..... .... .. ....... ............ ...... .... ... ....... 2 RECORD OF REVISIONS .. ... ............. ....... .... .. ... ... ..... .... ....... ... ............ ... ... ..... ...... .. ..... ... ..... ... .. 3 LIST OF TABLES ........ ...... ..... ... ....... ...... ..... ....... .. .. .. .. ... ..... .. .... ...... ........ ... .. .. ...... ... .... ... .. ........... 4 LIST OF FIGURES ...... ........ .... .. ..... .. ...... ...... ........... ... ... ........ .. .... .... ... .. .... ... ..... ... .... .... .. ... .......... 5

1.0 INTRODUCTION

.... ...... .... .... ... .... ....... .... ....... ......... ...... ... ....... ... ........ ... .. ............... .. ... .... . 6 1.1 Stability Option 1-D Exclusion Reg ion and Buffer Zone . ..... .. ......... ... ............. ..... ........ ... 6 2.0 INSTRUMENTATION TRIP SETTINGS : .......... ... ... ...... ... ... .. .. .... .... ... ..... ..... .... ... ....... .. .... 7 2.1 APRM Flux Scram Trip Setting (Run Mode) ............ ..... .... .. ...... ... .. ............ ... ....... .. .. ... ... 7 2.2 APRM Rod Block Trip Setting (Run Mode) ......... ..................... ..... ..... ... ... .... ... .... ... ...... 12 2.3 Rod Block Monitor Trip Setting ..... .... .. ... ... .. .... ..... ....... ........ .. .. ... ...... ... ..... ..... ..... ...... ... .. 12 3.0 CORE OPERATING LIMITS ... .. ......... ...... .. ..... ....... ... ... ... ........ ... ..... ... ... ...... .. ..... ... ..... .... 17 3.1 Maximum Average Planar Linear Heat Generation Rate (MAPLHGR) ... ...... .... .. ..... .... 17 3.2 Linear Heat Generation Rate (LHGR) ... ... ... ....... .......... .. ......... ....... ....... ........ ........ .. ..... ll 3.3 Minimum Critical Power Ratio (MCPR) ........ ..... .... .. .... .. .. .. ... ..... ... .................. ............ .. 25 3.4 Power/Flow Relationship During Power Operation .... ... .. ... ... ... .. .. ..... ... ...... ...... ... .. .. ..... . 3.f 4 .0 REACTOR VESSEL CORE DESIGN ... ..... .. ..... ....... ............ ..... ... ..... ... ... ... ...... ....... ... ... . 35

5.0 REFERENCES

..... ....... ......... ....... ......... ..... .... ...... ............ ...... .......... ..... ..... ........ .... .... .... 37 Revision 34 Cycle 21 COLR Page 2 of 37 _ __

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 RECORD OF REVISIONS Revision Effective Date Description 8A Effective date based on issuance of Applicable for use during Cycle 8 Operation license amendment by NRC 9A License amendment by NRC for Applicable for use during Cycle 9 operation ARTS and SAFER/GESTR 10A Effective upon final approval Applicable for use during Cycle 10 Operation 11A Effective upon final approval Applicable for use during Cycle 11 Operation 118 Effective upon final approval Applicable for use during Cycle 11 Operation 11C Effective upon final approval Applicable for use during Cycle 11 Operation 11 D Effective upon final approval Applicable for use during Cycle 11 Operation 12A License amendment by NRC for Applicable for use during Cycle 12 Operation SLMCPR of 1.08 128 Effective upon final approval Renumbered Table 3.3-2 to 3.3-1 , Sh. 2 of 2 and Table 3.3-1 to 3.3-1,Sh . 1 of 2 12C Effective upon final approval Changed Tech Spec section numbers referenced due to Tech Amendment #177 .

Pages affected : 6, 24 12D Effective upon final approval Incorporated stability log-term solution option 1-A.

13A Effective upon final approval Applicable for use during Cycle 13 Operation 14A Effective upon final approval Applicable for use during Cycle 14 Operation 15A Effective upon final approval Applicable for use during Cycle 15 Operation 158 Effective upon final approval Changed MAPLHGR Limits for GE14 fuel in response to an input error GE corrected .

Applicable for use during Cycle 15 Operation 16A Effective upon final approval Applicable for use during Cycle 16 Operation 168 Effective upon final approval Core Loading Change to replace leaking fuel bundle JLG621 . Clarified P-F Map graphic on P.

36 . Applicable for use during Cycle 16 Operation 25 Effective upon final approval Limits for Single Loop Operation were incorporated . Rev number scheme changed to Merlin Convention 26 Effective upon final approval Applicable for use during Cycle 17 Operation 27 Effective upon final approval Corrected typographical errors on p. 30 , 34 ,38 ,39 per CR-PNP-2008-256 and 285 28 Effective upon final approval Extended Tables 3.1-1to63.5 GWD/ST (70 GWD/MT) , updated Fig . 3.1-1 , section 3.1 &

references , addressed CR-PNP-2009-01066 29 Effective upon final approval Applicable for use during Cycle 18 Operation 30 Effective upon final approval Applicable for use during Cycle 19 Operation 31 Effective upon final approval Corrected typographical error on fig .3.4-1 32 Effective upon final approval MAPLHGR limits were revised to correct errors reported by 2011 -02 and 201 !-03, CR-PNP-20 I 1-02556 33 Effective upon final approval Applicable for use during Cycle 20 Operation 34 Effective upon final approval Applicable for use during Cycle 21 Operation Revision 34 Cycle 21 COLR Page 3 of 37_ __

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 LIST OF TABLES Number Title Page 2.1-1 Formulae for Allowable APRM Flux Scram Trip Settings in 8 Figure 2.1-1 , Two Loop Operation 2.1-2 Formulae for Allowable APRM Flux Scram Trip Settings in 9 Figure 2.1-2, Single Loop Operation 2.2-1 Formulae for Allowable APRM Rod Block Trip Settings in 13 Figure 2.2-1 , Two Loop Operation 2.2-2 Formulae for Allowable APRM Rod Block Trip Settings in 14 Figure 2.2-2 , Single Loop Operation 3.1-1 MAPLHGR Limits for Rated Power and Rated Flow for GNF2 18 Fuel 3.1-i MAPLHGR and LHGR Multipliers for Single Loop Operation ~

3.1.3 Peak Pin LHGR Set Down from LOCA Analysis 19 3.3-1 MCPR Operating Limits At Rated Power and Rated Flow 2§ Revision 34 Cycle 21 COLR Page 4 of 3 7_ __

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4 .02 LIST OF FIGURES Number Title Page 2.1-1 Allowable APRM Flux Scram Trip Settings - TLO 10 (Normal Feedwater Temperature) 2.1-2 Allowable APRM Flux Scram Trip Settings - SLO 11 (Normal Feedwater Temperature) 2.2-1 Allowable APRM Rod Block Trip Settings - TLO 15 (Normal Feed water Temperature) 2.2-2 Allowable APRM Rod Block Trip Settings - SLO 16 (Normal Feed water Temperature) 3.1-1 MAPLHGR Limit 20 3.2-1 Most Limiting LHGR For GNF2 Fuel At Rated Power and R22ated Core Flow 3.2-2 Flow-Dependent LHGR Factor (LHGRFACF) 23 3.2-3 Power-Dependent LHGR Factors 24 3.3-1 Flow-Dependent MCPR Limits (MCPRF) 27 3.3-2 Power-Dependent MCPR Limits (MCPRp) , Turbine Bypass 2§.

Assumed Operable and Normal Feedwater Temperatu re 3.3-3 Power-Dependent MCPR Limits (MCPRp) , Turbine Bypass 29 Assumed Out Of Service and Normal Feedwater Temperature 3.3.4 Feedwater Tempe rature Analytical Bands 30 3.3. 5 Operating Dome Pressure Ana lytical Band 31 3.4-1 Power/Flow Operating Map , Scram and Rod Block Data 3~

Based on Allowable Values - TLO 3.4-2 Power/Flow Operating Map, Scram and Rod Block Data 31_

Based on Allowable Values - SLO 4 .0-1 Reactor Vessel Core Loading Pattern 36 Revision 34 Cycle 21 COLR Page 5 of 37 _ __

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02

1.0 INTRODUCTION

This report provides the cycle-specific limits for operation of the Pilgrim Nuclear Power Station (PNPS) during Cycle 21. In this report, Cycle 21 will be referred to as the present cycle .

Ihe Technical Specifications refer to this report for the applicable values of the following fuel-related parameters:

Reference Technical Specification APRM Flux Scram Trip Setting (Run Mode) Table3 .1.1 APRM Rod Block Trip Setting (Run Mode) Table 3.2.C-2 Rod Block Monitor Trip Setting Table 3.2.C-2 Average Planar Linear Heat Generation Rate 3.11 .A Linear Heat Generation Rate (LHGR) 3.11 .B Minimum Critical Power Ratio (MCPR) 3.11.C Power/Flow Relationship 3.11.D Reactor Vessel Core Design 4.2 If any of the core operating limits in this report is exceeded , actions will be taken as defined in the referenced Technical Specification.

The core operating limits in this report have been established for the present cycle using the NRC-approved methodology provided in the documents listed in Technical Specification 5.6.5. These limits are established such that the applicable limits of the plant safety analysis are met.

1.1 Stability Option 1-D Exclusion Region and Buffer Zone.

The reactor shall not be intentionally operated within the Exclusion Region given in Figure 3.4-1 , for Two Loop Operation (TLO) and Figure 3.4-2 for Single Loop Operation (SLO) . Immediate exit is required for inadvertent entry into the exclusion region.

The reactor shall not be intentionally operated within the Buffer Zone given in Figure 3.4-1 for TLO and Figure 3.4-2 , for SLO when the on-line Stability Monitor is inoperable .

Allowable values for APRM Scram and Rod Block trip set points are defined in Section 2.

Revision 34 Cycle 21 COLR Page 6 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 2.0 INSTRUMENTATION TRIP SETTINGS :

2.1 APRM Flux Scram Trip Setting (Run Mode)

Ref. Technical Specifications: Table 3.1.1 APRM flux scram Allowable Trip Set points (ATSP) for TLO are shown on Figure 2.1-1. The scram set point curve clamps power at 120% of rated core thermal power. Formulae used to develop Figure 2.1-1 are listed in Table 2.1-1.

APRM flux scram Allowable Trip Set points (ATSP) for SLO are shown on Figure 2.1-2 . The scram set point curve clamps power at 120% of rated core thermal power. Formulae used to develop Figure 2.1-2 are listed in Table 2.1 -2.

In accordance with Technical Specification Table 3.1.1, Note 15, for no combination of loop recirculation flow rate and core thermal power shall the APRM flux scram trip setting be allowed to exceed 120% of rated thermal power. Flow clamp feature is not used in Cycle 21.

Drive Flow to Core Flow relationship:

APRM Trip settings use Drive flow to determine the power trip setting for both scrams and rod blocks, as the drive flow is a more reliable flow indication than core flow . The transient analysis uses the stability based trip settings based on Core Flow. Therefore , calibration of Drive flow vs . core flow is important to ensure that transient analysis assumptions for trip settings are implemented correctly.

Drive Flow (Wo) normalization with core flow shall be done such that 100% Drive Flow with Two Loops corresponds to 100% Rated Core Flow of 69 M#/hr.

Source: Reference 5.6, sec. 2.1 Revision 34 Cycle 21 COLR Page 7 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 Table 2.1-1 Formulae For Allowable APRM Flux Scram Trip Settings In Figure 2.1-1 Two Loop Operation Allowable Trip Set Point Drive Flow Range (ATSP) c D

% Rated SLOPE INTERCEPT 0.20 71 .5 0 :::; Wo :::; 22.5 0.71 60.0 22.5 < W 0  :::; 55 .9 0.65 70.6 55 .9 < W 0  :::; 76 0 120.0 76 < Wo :::; 125 Notes:

1. ATSP = C * % W 0 + D , ATSP is in % Power

2. Figure 2.1-1 shows the plot of ATSP vs . Wo.

3. Reference 5.6 , Table 1.a is the basis for the values of constants listed in this Table.

Revision 34 Cycle 21 COLR Page 8 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 Table 2.1-2 Formulae For Allowable APRM Flux Scram Trip Settings In Figure 2.1-2 Single Loop Operation Allowable Trip Set Point Drive Flow Range (ATSP) c D

% Rated SLOPE INTERCEPT 0.20 69 .5 0 ::; Wo ::; 32 .5 0.71 52 .9 32 .5 < Wo ::; 65 .9 0.65 64.1 65.9 < Wo ::; 86 0 120.0 86 < Wo ::; 125 Notes:

1. ATSP = C * % W 0 + D , ATSP is in % Power

2. Figure 2.1-2 shows the plot of ATSP vs . Wo.

3. Reference 5.6, Table 1.b is the basis the values of constants listed in this Table .

Revision 34 Cycle 21 COLR Page 9 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 Figure 2.1-1 Allowable APRM Flux Scram Trip Settings - TLO (Normal Feedwater Temperature) 130.0 ~--~-~----,----~~~-~~--.---,------,

~ ~~-r- -r - -+ - 120.0l_ ~ - * -- -- +*

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/

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~ 100 .0 -t--~-t-~-t---,---t----t----t--:;;#--t---.,...._+---+---1---+----t-___,.----i E r T ~~997 ..

~ 90.0 +---+---+--.- . -

- ~ ~

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~ 80.0 --t---r-~o~~t---+---1---+---+---+----+--f---+--"--1 a:: 71.5 .. .. .. ***

0... 70. 0 . ~---+---f---*- *---+--~--t-----1----+--~-t-- -t---~**-r-***~......-j-*--***- *-~--

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60. 0 - + - - - + - - - - - + - - - + - - - + - - - - + - - - + - - - - - - t - - - + - - - + - - - - + - - - - - ; - '----;

0 10 20 30 40 50 60 70 80 90 100 110 120 W 0 , Drive Flow,%

Revision 34 Cycle 21 COLR Page 10 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 Figure 2.1-2 Allowable APRM Flux Scram Trip Settings - SLO (Normal Feedwater Temperature) 130.0

~

-- ~

120.0 +--

0

.....; 120.0 c ~

- ,/

r 106.9

~ 110.0

-~ 100.0

+

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v 99.7

- - ~

,.... ~

E

~ 90.0 0

~ 80.0

~

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'.-/ - t 0:: 69.5 - 1 a.. 70.0 ~

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j t 60.0 I I 0 10 20 30 40 50 60 70 80 90 100 11 0 120 W 0 , Drive Flow, %

Revision 34 Cycle 21 COLR Page 11 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 2.2 APRM Rod Block Trip Setting (Run Mode)

Reference Technical Specifications: Table 3.2.C-2 , 3.1.B.1 When the mode switch is in the RUN position , the Average Power Range Monitor (APRM) rod block Allowable Trip setting (ATSPRs) as a function of drive flow for Two Loop Operation shall be as given by Figure 2.2-1 . The ATSPRs is clamped at 115% of rated core thermal power. Formulae that form the basis of the Figure 2.2-1 are listed in Table 2.2-1. The flow clamp feature is not used in Cycle 21.

When the mode switch is in the RUN position , the Average Power Range Monitor (APRM) rod block Allowable Trip setting (ATSPRs) as a function of drive flow for Single Loop Operation shall be as given by Figure 2.2-2 . The ATSPRs is clamped at 115% of rated core thermal power. Formulae that form the basis of the Figures 2.2-2 are listed in Table 2.2-2. The flow clamp feature is not used in Cycle 21.

2.3 Rod Block Monitor Trip Setting

References:

Technical Specification Table 3.2.C-2, Ref. 5.15 , Ref. 5.10 Table 4.5 (b)

Allowable values for the power-dependent Rod Block Monitor trip set points shall be :

Reactor Power, P Trip Set point (Allowable Value)

(%of Rated) (% of Reference Level) p ~ 25 .9 Not applicable (All RBM Trips Bypassed) 25 .9 < p ~ 62 .0 125 62 .0 < p ~ 82 .0 125 82 .0 < p 125 The allowable value for the RBM downscale trip set point shall be ~ 94.0% of the reference level. The RBM downscale trip is bypassed for reactor power ~ 25 .9% of rated (Technical Specification Table 3.2.C-1 , Note 5). The most limiting Analytical Value of Rod Block set point of 125% is justified as the Rod Withdrawal Error is expected to reduce MCPR by 0 . 2~ if this set point is used. Since the minimum OLMCPR value is always greater than 1 . ~ . a reduction of 0.2~ in MCPR, starting with operation at OLMCPR, is expected to lower MCPR to 1.22. This is substantially above the Safety Limit MCPR of 1JQ. Ihe HTSP can be set at 125 % as unblocked rod withdrawal is non-limiting, as justified in the SRLR.

Cycle 21 COLR Revision 34 Page 12 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 Table 2.2-1 Formulae For Allowable APRM Rod Block Settings In Figure 2.2-1 Two Loop Operation APRM Rod Block Allowable Trip Set Drive Flow Range Point (ATSPRs) c D

% Rated SLOPE INTERCEPT 0.20 66 .5 0 :::: Wo :::: 22 .5 0.71 55 .0 22 .5 < Wo :::: 55.9 0.65 63.6 55 .9 < W 0  :::: 79 .1 0 115.0 79 .1 < Wo :::: 125 Notes:

1. ATSP Rs = C * % Wo + D, ATSPRs is in% Power

2. Figure 2.2-1 shows the plot of ATSPRs vs . Wo.

3. Reference 5.6, Table 1.a is the basis for the values of constants listed in this Table.

Revision 34 Cycle 21 COLR Page 13of37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE: G4.02 Table 2.2-2 Formulae For Allowable APRM Rod Block Settings In Figure 2.2-2 Single Loop Operation APRM Rod Block Allowable Trip Set Drive Flow Range Point (ATSPRB) c D

% Rated SLOPE INTERCEPT 0.20 64 .5 0 ::; Wo ::; 32.5 0.71 47.9 32 .5 < Wo ::; 65 .9 0.65 57 .1 65 .9 < Wo ::; 89.1 0 115.0 89.1 < Wo ::; 125 Notes:

1. ATSPRs = C * % Wo + D, ATSPRs is in% Power

2. Figure 2.2-2 shows the plot of ATSPRs vs . Wo.

3. Reference 5.6, Table 1.b is the basis for the values of constants listed in this Table.

Revision 34 Cycle 21 COLR Page 14 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 Figure 2.2-1 Allowable APRM Flux Rod Block Trip Settings - TLO (Normal Feedwater Temperature) 0~

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0:::

a..

60.0 - - - - - - - - - - - - - . - - - - - - - - - _ _ _ , . . . _ - - - - - - - -

0 10 20 30 40 50 60 70 80 90 100 11 0 120 W 0 , Drive Flow, %

Revision 34 Cycle 21 COLR Page 15of37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 Figure 2.2-2 Allowable APRM Flux Rod Block Trip Settings - SLO (Normal Feedwater Temperature) 120.0 I 11 5.0 I

0~

t

....,.. 110.0 /

0.

c:

• -0 a; 100.0 I

j I

99}-

/" I

"'g 90.0

~

t l-/ 94 7 m

"C

~ 80.0

/

v I

~ 70.0

<( . 64~ ~

~

v:

71.0 1

--~*

60.0 I 0 10 20 30 40 50 60 70 80 90 100 110 120 W0 , Drive Flow, %

Revision 34 Cycle 21 COLR Page 16 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 3.0 CORE OPERATING LIMITS 3.1 Maximum Average Planar Linear Heat Generation Rate (MAPLHGR)

Reference Technical Specification : 3.11 .A During power operation , MAPLHGR as a function of axial location and average planar exposure shall not exceed the applicable limiting value . MAPLHGR limits for rated power and flow conditions are given in Tables 3.1-1 . Flow and power dependent multipliers used to be necessary only as a result of applying pin based limit using lattice local peaking factors . Beginning with Cycle 20 , the peak pin LHGR setdown is applied to the pin based LHGR limit. Therefore, there is no need for power and flow dependent multipliers on the MAPLHGR limit (Reference 5.10). Peak pin LHGR limits based on LOCA analysis are listed in Table 3 . 1-~.

MAPLHGR limits for rated power and flow conditions for GNF2 are presented in Figure 3.1-1 . MAPLHGR limits are based on ECCS-LOCA considerations . The MAPLHGR values for rated power and flow conditions are listed in Tables 3.1-1 for GNF2, which are obtained from the Supplemental Reload Licensing Report, Rev~ (Ref. 5.15) . with assumed Lattice Local Peaking factors to arrive at lattice based limits. Licensing basis PCT based on the MAPLHGR Limits in this report for GNF2 is 2150 °F (Ref. 5.15). All PCT determination errors reported under 10CFR50.46 up to 12/31/2011 have been accounted for.

Since the thermal-mechanical LHGR is no longer composited with MAPLHGR limits, there is no power or flow dependent aspect to MAPLHGR limits. The pLHGR limit is applied to LHGR which makes MAPLHGR fuel type dependent, rather than lattice dependent. Therefore the power & flow dependent multipliers only apply to LHGR limits.

When in Single Loop Operation, an SLO Multiplier of 0.89 (Table 3 . 1-~) applies to the Rated MAPLHGR limit.

Revision 34 Cycle 21 COLR Page 17 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4 .02 Table 3.1-1 MAPLHGR Lim its for Rated Power and Rated Flow for GNF2 Fuel Bundle Type(s):

GNF2-P1 ODG28388-6G6.0/7G5.0-1 OOT2-145-T6-3143 (GNF2)

GNF2-P1 ODG28395-6G6.0/9G5.0-1 OOT2-145-T6-3422 (GNF2)

GNF2-P1 ODG28401-6G6.0/8G5.0/1 G4.0-1 OOT2-145-T6-3421 (GNF2)

GNF2-P10DG28389-6G6.0/8G5.0-100T2-145-T6-3141 (GNF2)

GNF2-P1 ODG28407-6G6.0/2G5.0/6G4.0-1 OOT2-145-T6-3642 (GNF2)

GNF2-P1 ODG28406-6G6.0/6G5.0/2G4.0-1 OOT2-145-T6-3641 (GNF2)

GNF2-P1 ODG28401-6G6.0/2G5.0/6G4.0-1 OOT2-145-T6-3640 (GNF2)

GNF2-P1 ODG28389-6G6.0/2G5.0/6G4.0-1 OOT2-145-T6-3142 (GNF2)

GNF2-P1 ODG28375-6G6.0/7G5.0-1 OOT2-145-T6-3434 (GN F2)

GNF2-P1 ODG28406-6G6.0/2G5.0/6G4.0-1 OOT2-145-T6-4171 (GNF2)

GNF2-P1 ODG28398-5G6.0/8G5.0-1 OOT2-145-T6-4172 (GN F2)

GNF2-P1 ODG28389-15G5.0-1OOT2-145-T6-4173 (GNF2)

GNF2-P10DG28375-7G6.0/6G5.0-100T2-145-T6-4174 (GNF2)

GNF2-P1 ODG28387-15G6.0-1 OOT2-145-T6-4308 (GNF2)

. GNF2-P1 ODG28387-12G6.0/4G5.0-1 OOT2-145-T6-4309 (GNF2)

GNF2-P1 ODG28398-14G5.0-1OOT2-145-T6-4310 (GNF2)

GNF2-P1 ODG28387-13G6.0-1 OOT2-145-T6-4311 (GNF2)

Average Planar Exposure MAPLHGR Limit GWd/MT GWd/ST kW/ft 0 0 10.63 40.85 37.06 10.63 67 60.78 6.87 70 63.5 5.5 Revision 34 Cycle 21 COLR Page 18 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4 .02 Table 3.1-£ MAPLHGR and LHGR Multipliers for Single Loop Operation The single loop operation multipliers on LHG R and MAPLHG R and the ECCS-LOCA analytical initial MCPR values applicable to each fue l type in the new cycle core are shown in the fo llowing table.

Fuel Type Single Loop Operation Multiplier on LHGR and MAPLHGR GNF2 0.89 Table 3.1-J.

Peak Pin LHGR Set Down from LOCA Analysis Pilgrim has an ECCS-LOCA set down on Peak Pin LHGR as shown in the Table below. This limit is therefore applied to LHG R which is a pin based lim it.

Fuel Type Peak Pin LHGR, kW/ft GNF2 11.81 Revision 34 Cycle 21 COLR Page 19of37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 Figure 3.1-1 MAPLHGR Limit 12.5 12.0 11 .5 11 .0

~~ [!-2:~

10.5 -

I ....... GNF2 10.0 9.5

"' ' ~

~,

~

.lo::

9.0 0:::

<.!)

c

...J a..

<(

8.5 8.0 ""' "'

7.5 7.0 ' ~"' ~~

~ 6~

6.5 6.0 5.5 5.0

'\-r ,__

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Average Planar Exposure (GWd/sT)

Revision 34 Cycle 21 COLR Page 20 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 3.2 Linear Heat Generation Rate (LHGR)

Reference Technical Specification : 3.11 .B When reactor power is greater than 25% , the LHGR of any rod in any fuel assembly at any axial location shall not exceed the rated power and rated core flow limits presented in Reference 5.17. Figure 3.2-1 represents LHGR curves for GNF2 fuel. Proprietary detailed values are in Reference 5.17. At other than rated power and rated flow conditions, the applicable limiting LHGR value for each fuel type is the smaller of the flow- and power-dependent LHGR limits, LHGRF and LHGRp. The flow-dependent LHGR limit, LHGRF , is the product of the LHGR flow factor, LHGRFACF , shown in Figure 3.2-2 and the LHGR for rated power and flow conditions in Reference 5.1I. The power-dependent LHGR limit, LHGRp , is the product of the LHGR power factor, LHGRFACp , shown in Figure 3.2-3 and the LHGR fo r rated power and flow conditions in Reference 5.17.

LHGR Curves in Figure 3.2-1 are representative curves for U02 fuel rods and Gd containing rods. Reference 5.17 and 5.26 documents the most limiting LHGR limits for Gd containing fuel rods. Reference 5.23 documents the GESTAR II compliance of GNF2 fuel , as amended.1 GESTAR II , Rev. 20 (Reference 5.1) incorporated Prime T-M methods . Cycle 21 LHGR limits are based on using PRIME for U02 fuel rods and Gd rods .

Pbypass is the power level below which more restrictive thermal limits are applied , as Turb ine Stop Valve closure and Turbine Control Valve Fast Closure scrams are assumed to be bypassed . Pbypass can be set anywhere in the range 25 to 45% core thermal power.

Pbypass is set at 32 .5% power in 30 Monicore by default. However. the applicable less restrictive LHGRf ACp limits in the upper curve in Figure 3.2-3 can be used whenever the Turbine Stop Valve closure and the Turbine Control Valve Fast Closure scrams are enabled .

In modeling the Feedwater Level Control Failure with maximum demand Transient, an automatic Reactor Feed pump trip is not assumed because the trip may not occur during the transient. The trip is also not credited in the event of a system malfunction and therefore the results of the integrated plant response assume that the feed pump trip does not occur on high level. For example of a low reactor water level indication on one of the feed water level sensing channels may be present that could be the cause of the maximum Feedwater demand . This becomes important for lower power levels where the Turbine Stop Valve closure and the Turbine Control Valve Fast Closure scrams are bypassed . The off-rated limits in this COLR revision reflect this consideration (Ref. 5.25)

Revision 34 Cycle 21 COLR Page 21 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02

[[

]]

Revision 34 Cycle 21 COLR Page 22 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02

++

Figure 3.2-2 Flow Dependent LHGR Factor 1.05

--+-~ .. -+* * * * *-***-~- - - * *i* * * - * * +1* t- - -t* * - * * * +!* * * - **--+:-- -*-+***-*-*-,****--**-*+:******** *-***!**-- ---+----1 1.00 0 .95

---

~----- ________ 1..............,,................: ... ----~-----t-**----t------t-- __ ---lf---- --=* 1

, -t-- j ss 1 o L--+--****---,i------t--------1-----f 11 2. .o L 1

~

t***************t,-----*******--*****t----**** *-*--***-* *****--*

I t

1/ ~/ i

• • t**-*****-***-**********+**************+1**************t*-************1****************-***********t . ,.... - -----  :'

I I I 0 .90

//~+1____

-+--- --- ----+--~---- ---- . - --t*-***-*****---*-*--t!.............+- I  ! ----+:-------**-+-1** *****--*-****-****+i*********+:.... ----+---- ------ ............. -***** 1---f----+-

i 0 .85 '

( ..)

<(

LL 0.80 .................. .. -

I 1

1 0::

(!)

c +

....I 0 .75 I i I 0 .70

---

***-*******************-7 I I I

I I 1~~-+--+-~~ -~~~+--+--t---t-~--t--+---+---+~---t**~r-+--+-~-+--t--+---+-~-+---t~t--+-~-+-~-+--+--< I 0.65

---t;;v-- -+--- ' I ,  :

-t--***--***------1---t----+---*- ;-*----*-*-* **--*-+------t-**--*-+*--*******************-**t**-**-****+******-***--t-**-: i I

0.60 -+ 130, 06261 I

--1--+---+-*-i!i '

I

1 I

4--+-

I I I

I i

I I'

I I

0 .55 -i-~--r--t---+---+-----r-+---+~t--+--~-t--+---r-~--r---+--r-+---+~~+--+--+-~-i-~-+-~---+~~..----~-t-~~

t I

25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 Core Flow(%)

Revision 34 Cycle 21 COLR Page 23 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4 .02 Figure 3.2-3 Power Dependent LHGR Factors

[Note: Factors listed apply to Normal Feedwater heating with the Turbine bypass In or Out of service condition. P 8 = P-Bypass) 1.05

[J]]

1.00 0 .95 I0.935 1 10.935

~

lo.957 1 i...-- .,....-

0 .90 L...--"

0.830 1 0 .840 l L...--" v 0.85 0 .824:

0.80

~~-- -- --- TSV/TCV Scram ENABLED (All Core Flows)

Solid line : LHGRFACp with P ~ 32 .5 % CTP Dotted line : LHGRFACp with P < 32.5 % CTP 0.75 Q.

0.70 TSV/TCV Scram DISABLED (Core Flows ,; 50% )

0

<(  % CTP 5 P 8 , 45 ~ P 8 ~ 25 % CTP LL 0 .65 a: Dotted line: LHGRFACp with P > 32.5 % CTP

(!) Solid line : LHGRFACp with P 5 32.5 % CTP

I: 0.60 10.557

...J P8 =power level below which TSV/TCV scram s are DISABLED 0.55 Io.49o _...... ... .... ... ... ... ... . ...

This Figure depicts solid & dotted line with P8 = 32 .5% CTP 0.50 ... ... 10.537 0.3791

/ ...... ~ ...

TSV/TCV Scram DISABLED (90% ~ Core Flows > 50% )

0.45 0.40 /

vL ~

... -  % CTP s P 8 , 45 ~ P 8 ~ 25 % CTP Dotted line : LHGRFACp with P > 32.5 % CTP

~

(/ v I 0.435 Solid line: LHGRFACp with P 5 32 .5 % CTP PB= power level below which TSV/TCV scram s are DISABLED 0.35

~ r This Figure depicts solid & dotted line with PB= 32 .5% CTP 0.30 ~ 0 .340 0 .25 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105

%CTP Revision 34 Cycle 21 COLR Page 24 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4 .02 3.3 Minimum Critical Power Ratio (MCPR)

Reference Technical Specification: 3.11.C During power operation , the MCPR shall be greater than or equal to the Operating Limit MCPR (OLMCPR) . The operating limit MCPR is the greater of the flow- and power-dependent MCPR operating limits, MCPRF and MCPRp. The flow-dependent MCPR operating limit, MCPRF, is provided in Figure 3.3-1. For power level less than Pbypass. the MCPRp is independent of the fuel type and can be directly read from Figure 3.3-2, when Turbine Bypass is operable and from Figure 3.3-3 , when Turbine Bypass is out of service .

Above PBY.pass* MCPRp is the product of the rated power and flow MCPR operating limit presented in Table 3.3-1, and the Kp factor presented in Figure 3.3-2, when Turbine Bypass is in service and from Figure 3.3-3 , when Turbine Bypass is out of service. The rated power and flow MCPR operating limits presented in Tables 3.3-1 are functions of 't.

Both Figures 3.3-2 and 3.3-3 include normal and reduced feed water temperature operating modes. For SLO MCPRp and MCPRF are raised by 0 . 0~ compared to TLO values shown in Figures 3.3-2 and 3.3-3.

The value of -r in Table 3.3-1 shall be equal to 1.0, unless it is calculated from the results of the surveillance testing of Technical Specification 4 .3.C. TS 4.11 .C defines 't.

Pbypass is the power level below which 30 Monicore applies more restrictive thermal limits, as Turbine Stop Valve Closure and Turbine Control Valve Fast Closure scrams are assumed to be bypassed . Pbypass can be set anywhere in the range 25% to 45% core thermal power. Jn 30 Monicore. Pbypass is set at 32.5% by default in 30 Monicore. However, the less restrictive MCPRp limits (the lower curve) in Figures 3.3-2 & 3.3-3 can be applied whenever the Turbine Stop Valve closure and the Turbine Control Valve Fast Closure scrams are enabled .

Transient Analysis assumes that the transient initiates from operation within the Feedwater temperature vs. Reactor Power band (Figure 3.3-4). Transient Analysis also assumes that the transient initiates from operation at a Reactor Pressure within the upper & lower limit curves defined by Figure 3.3-5 ._ If operating at or above 95% power and Reactor pressure between 1015 psig and 1025 psig corresponding to the lower pressure band in Figure 3.3-5, an OLMCPR penalty of 0.01 must be applied (Reference 5.22) . To operate above the lower pressure bound curve at any power level (not including the flat portion of the curve at 1015 psig above 95% power) in Figure 3.3-5, there is no OLMCPR penalty.

In modeling the Feedwater Level Control Failure with maximum demand Transient, an automatic Reactor Feed pump trip is not assumed because the trip may not occur during the transient. The trip is also not credited in the event of a system malfunction and therefore the results of the integrated plant response assume that the feed pump trip does not occur on high level. For example of a low reactor water level indication on one of the feed water level sensing channels may be present that could be the cause of the maximum Feedwater demand. This becomes important for lower power levels where the Turbine Stop Valve closure and the Turbine Control Valve Fast Closure scrams are bypassed . The off-rated limits in this COLR revision reflect this consideration (Ref. 5.25)

Revision 34 Cycle 21 COLR Page 25 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 Table 3.3-1 MCPR Operating Limits At Rated Power and Rated Flow The MCPR Operatin g Limit for Two Loop Operation (OLMCPRrLO) is a function of fue l type ,

exposure , and T , which is derived from scram timing measurements.

OLMCPR For GNF2 Fuel Two Tau Loo12 012eration From To BOC to MOC MOC to EOC 0.0 1.51 1.57 0.0 0.1 1.52 1.58 0.1 0.2 1.53 1.59 0.2 0.3 1.54 1.60 0.3 0.4 1.55 1.61 0.4 0.5 1.56 1.62 0.5 0.6 1.57 1.63 0.6 0.7 1.58 1.64 0.7 0.8 1.59 1.65 0.8 0.9 1.60 1.66 0.9 1.0 1.61 1.67 BOC= Beginning Of Cycle MOC = Middle of Cycle= End Of Rated Power Operation At Rated Flow (EOR) - 1.935 GWd/ST EOC = End Of Cycle Note: The rated OLMCPR Limits given above apply to both normal and reduced Feedwater Temperatu re as well as Turbine Bypass Valve OOS and Turbine bypass Va lves in service . Off rated MCPR limits are given in Figures 3.3-1, 3.3-2 and 3.3-3 as taken from the Supplemental Reload Licensing Report (Reference 5.15).

Single Loop Operation OLMCPR SLO = o.o_g + OLMCPR TLO ' where OLMCPR TLO is selected from the Tab le above .

Revision 34 Cycle 21 COLR Page 26 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 Figure 3.3-1 Flow Dependent MCPR Limits 1.65

-I 30, 1.61 1.60

~~

1.55 "" '-- ~ .....

~

1.50 1.45

~,

J SLO MCPRf = TLO MCPRf + 0.02, for all values. I

"" ~

0:: 1.40

~ .....

a..

(.)

~

!:1.35

~

1.30 1.25

~ .....

1.20

"" ..._ 192 .7 , 1.22 1

...112,- 1.23.J 1.15 1.10 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 Core Flow(%)

Cycle 21 COLR Revision 34 Page 27 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE: G4.02 Figure 3.3-2 Power Dependent MCPR Limits (MCPRp I Kp)

[Note 1: Turbine Bypass is Assumed Operable for both Normal and Reduced Feedwater Temperature]

[Note 2: The Kp multiplier is applied to the rated MCPR when %CTP > Pe , where Pe = P-Bypass, TSC/TCV Scram enabled]

4.50 TSV/TCV Scram DISABLED (Core Flows > 5 0 %, s 90% )

4.25 25% S % CTP s Pa 5 45% -

Dotted line : MCPRp with 45 ~ P > 32 .5 % CTP , % CTP s P 8 4 .00 Solid line: MCPRp with P 5 32.5 % CTP 1--

P6 =power level below which TSV/TCV scrams are DISABLED 3.75 This Figure depicts solid & dotted line with Pa = 32.5% CTP 1--

3.50

-~

I I I I I TSV/TCV Scram DISABLED (Core Flows s 50% )

3.25 1--

%CTP 5 Pa . 45 ~ Pa ~ 25 %CTP

@ " ~ ~IJ 0..

..::: 3.00 .... ...... ...... _ Dotted line: MCPRp with 45 ~ P > 32.5 % CTP , % CTP :5 P 8 1--

"~

Solid line: MCPRp with P 5 32.5 % CTP Pa = power level below which TSV/TCV scrams are DISABLED Cl.

0::: 2 .75 ...... ...... J 1--

a.. -2.40 This Figure depicts solid & dotted line with Pa= 32.5%

(.)

~ ~ f2.s81 I I I I I I I

ii: 2 .50

• ~~ .... ..._

2 .25 .- ........... [~

1--

2 .00

...... ~

TSV/TCV Scram ENABLED (All Core Flows)

Solid line : Kp with P ~ 32 .5 % CTP 1--

Dotted line : Kp with P < 32.5 % CTP 1.75 1--

1.50 I

.._!+/-8~

1.25 *~- --

1.253 !

l ~ [ 1.196 I

~

~

1.00 ... GQJ 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

%CTP WHEN IN Single Loop Operation (SLO):

For P :5 Pbypass MCPRp is raised by 0.02 compared to TLO values .

For P > Pbypass , the rated OLMCPR is raised by 0.02 before multiplying by Kp to calculate MCPRp.

Revision 34 Cycle 21 COLR Page 28 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE: G4.02 Figure 3.3-3 Power Dependent MCPR Limits (MCPRp I Kp)

[Note 1: Turbine Bypass is Assumed Out of Service for both Normal and Reduced Feedwater Temperature]

[Note 2: The Kp multiplier is applied to the rated MCPR when %CTP >Pe. where Pe = P-Bypass, TSC/TCV Scram enabled]

4 .50 J ci 4 .48 t TSVfTC v Scram DISABLED (C ore Flows > 50%. $ 90%)

~

~

4.25 25% s %CTP s Pa s 45%

Dotted line : MCPRp with 45 ~ P > 32 .5 %CTP , %CTP s P8 4.00

'I\. II Solid line : MCPRp with P s 32.5 %CTP, % CTP s PB -

\

Pa= power level below which TSV/TCV scrams are DISABLED 3.75 3.50

'~ - . ,

~

~~

Th is Figure depicts solid & dotted line w ith Pa= 32 .5% CTP I I

' I TSVfTCV Scram DISABLED (Core Flows s 50%}

25 % s %CTP => Pa => 45%

3.25 I 3.00

~ .... Dotted line : MCPRp with 45 ~ P > 32 .5 %CTP , %CTP s P8

~

3.00

' .l I Solid line : MCPRp with P :> 32.5 %CTP, %CTP :> PB -

c..

0:: 2.75 r--...... r::-:-

~3 I

'* ~ I Pa= power level below which TSV/TCV scra ms are DISABLED a.. "i *.... ~ I This Figure dep icts solid & dotted line with P8 = 32 .5% CTP

'1

~~

u

E 2.50 -- "' ...... I I I I 2.25 I "" ...... -

-J .. 2 .20 TSVfTCV Scram ENABLED (All Core Flows}

2.00 Solid line: Kp with P ~ 32 .5 %CTP Dotted line : Kp with P < 32.5 %CTP 1.75 -

I 1.50 I I

-- -- ~ ~

I

..2.3._82]

f1.2061 I 1.25 1.066 1.00 T T -l 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

%CTP WHEN IN Single Loop Operation (SLO):

For P $ Pbypass MCPRp is raised by 0.02 compared to TLO values.

For P > Pbypass , the rated OLMCPR is raised by 0 .02 before multiplying by Kp to calculate MCPRp.

Revis ion 34 Cycle 21 COLR Page 29 of 37 L

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 Figure 3.3-4, Feedwater Temperature vs. Core Thermal Power (Analytical Bands) 375 ......

1 ~i..-

............ i....""' _..

365 _..... ....... ... ...

355

, _... ....... c... loo" i..o""'

i.....loo" L..o ...

345 i... ...

i,...

i...-

1....

i...iio'

,,, .... --""' i..-""'"'

335 i... i...""' JI.,.- ... .........

,..,. i...""' _... .......

-... ~ ..... ,,,.. ....

325 U:::-

0 -1....

Q)

..... ~~ i...ii..-""" .... ,,,.. ....

s 315 ,,,,,.,,.. _....... i... i...""'

n:J Q) J .... ""'

""' i..oli,,.. ,..,. i...""'

c.. 305

..... ~ _,,

E --~ - Nominal Feedwater Temperatu re

~

,. ..... ... ~

i,...o

~ ....

+/- 10 Deg. F (Feedwater Temp Analytical Limits)

Q) n:J 295

,. ~ ... ""'

I I I 3:: /' ~

~,,

.......... II Operation outside of the+/- 10 Deg .F Feedwater

"'O Q)

Q) 285

/

~

.. ~' ,,,,,...... Temperature Analytical Limits is prohibited .

LL

,,/' -""~ ,. ....

n:J c:

275

// ~~ ,.

u:

265 ~' ~~ / /

~' / /

255

//

245 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

%CTP Revision 34 Cycle 21 COLR Page 30 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTY PE: G4.02 Figure 3.3-5 Reactor Dome Pressure Operating Domain 1060 1050 1040 i

103 0 l ' I I

- - Nominal Reactor Dome Pressure I

/

v 1020 - Analysis Upper Pressure Bound (1046 psig)

- - (-10) psi Lower Pressure Bound

/

/

L v

1010

...v ~ /

2> - -

• Cycle Independent Lower Pressure Bound

. . . v , / I/

.=:: ' ......,. ., .Y /

~ 1000 _.....,.,,

s

"'"'~ '

~ /

,,,, ,..,..v I

/

v 990 a.. I I ... v ../' /

Cl>

E I I ...,,,.. .....- ~ /

0 980 0

... I V" ~_.,,,,,... //

0 CV Cl>

0:::

970 I

~

/

~

.,,, v /

/

v

/ /

960 /

/ ~ An additional pena lty of 0 .01 must be applied to OLMCPR in r-

........ order to operate in the highlighted triangular region . This region is 950

......... ......... .........! /

/ defined by reactor power ;,, 95 % CTP and dome pressure between ,

and including , 1015 to 1025 psig .

r-

~~--

940

.,.,....- l..---""

..... Operation in the normal band outs ide of the triangular reg ion does not require this penalty.

~

930

__... ..... ~ ......... --

~

........-- I 920 910 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

%CTP Revision 34 Cycle 21 COLR Page 31 of 37

1 PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 3.4 Power/Flow Relationship During Power Operation Reference Technical Specification : 3.11 .D The Cycle 21 stability analysis does not credit the flow clamp feature of the FCTR cards. The dominance of Core Wide Oscillations was demonstrated without the use of the flow clamp. APRM Flux scram and Rod Block curves without the flow clamp are therefore applicable to Cycle 21.

The power/flow relationship shall not exceed the limiting values shown on the Power/Flow Operating Maps in Figures 3.4-1 when in Two Loop Operation and 3.4-2 when in Single Loop Operation .

Cycle 21 operation is not fully analyzed for reduced feedwater temperature for issues other than thermal limits. The SRLR (Reference 5.15) contains only the thermal limit analysis results for reduced feed water temperature mode .

The exclusion and the buffer regions shown in Figures 3.4-1 and 3.4-2 are based on Stability Solution 1-D (references 5.4, 5.12, 5.15 and 5.20). Cycle 21 Stability Analysis summarized in the SRLR (Reference 5.15, Section 15) utilizes ODYSY LTR (Reference 5.24) that removed the decay ratio adder of 0.15.Figures 3.4-1 and 3.4-2 show APRM Scram and Rod Block lines using Allowable values as a function of Core Flow.

Exclusion and Buffer Region boundaries specified in the SRLR are slightly smaller than those in the P-F Map Reference 5.14. The current P-F Map is therefore conservative for buffer and exclusion regions and was not revised for Cycle 21 , other than the core flow restriction to 90% core flow for power below Pbypass of 32 .5% .

Single Loop Analysis limits maximum Core Flow to 52% of Rated Core Flow and maximum Power to 65% of Rated due to SLO vessel internal vibration (Ref. 5.7 , p. 1-2).

Various lines on the Power to flow map are described in Ref. 5.14.

Revis ion 34 Cycle 21 COLR Page 32 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 FIGURE 3.4-1 PILGRIM POWER I FLOW MAP - Two Loop Operation Scram and Rod Block Data based on Allowable Values CORE FLOW, MLB/HR 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 125 2535 120 - 2434 115 -F-"---__,;,,,.----""..,;;;;--...;;;;..;;;;...;;.;.......:;;;.;,;;_,- , 2332 2231 105 2129 2028 1927 1-1825  ;:

... 1724 :IE 1622 ffi 1521 ~

ICF CORE FLO 1420 ~

REGION 1318 ..J 1217 ~

OPERATION 1115 0::

PROHIBITED 1014 ~

913 1-LOWER BOUND 811 ~

~* NATCIRC LINE 710 0(.,)

20 Revision 34 Cycle 21 COLR Page 33 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 FIGURE 3.4-2 PILGRIM POWER I FLOW MAP - Single Loop Operation Scram and Rod Block Data based on Allowable Value Setpoint CORE FLOW, MLB/HR 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 120 125 115 .

110

. . . . ~~1 2535 I APRM SCRA M CLAMP AT 120%

APRM RODBLOCKCLA MPAT115% .

~

2434 2332 2231 105 ..;.. 2129 cw

~

100 .g*I~

95 90 SLOANALYSIS 1927 2028 ~

1825 3:

~ 85 BOUNDARY 1724 :E

'cf!. 80 1622 a:ft w

a:ft 75 1521 03:

~ 70 1420 Q.

0 65 1318 _,

~ 60 1217 ~

~ 55 OPERATION 1115 a:W

.::: PROHIBITED ffi 50 1014 ~

c 45 913 w

~

w 40 811 a:

0 a: 35 710 (.)

608 25 507 20 406 15 10 ._l~_~_i_ ___.I- .. SLO (est) MIN PU MP SPEED (26%)

304 203 5 101 0 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 CORE FLOW, MLB/HR Revision 34 Cycle 21 COLR Page 34 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4.02 4 .0 REACTOR VESSEL CORE DESIGN Reference Technical Specification : 4 .2 T he reactor vessel core for the present cycle consists of 580 fue l assemb lies of the types listed below. The core load ing pattern (Ref. 5.15) for each type of fuel is shown fo r the present cycle in Figure 4 .0-1.

1. of Cycle Bund i Load Irradiated Bundles es ed GNF2-P1 ODG2B388-6G6 .0/7G5.0-1OOT2-145-T6-3143 21 18 GNF2-P1 ODG2B388-6G6 .0/7G5 .0-1OOT2-145-T6-3143 5 18 GNF2-P1 ODG2B395-6G6.0/9G5 .0-1OOT2-145-T6-3422 16 19 GNF2-P1 ODG2B401 -6G6 .0/8G5.0/1 G4 .0-100T2-145-T6-3421 24 19 GNF2-P1 ODG2B389-6G6 .0/8G5.0-1 OOT2-145-T6-3141 14 18 GNF2-P1 ODG2B407-6G6.0/2G5 .0/6G4 .0-1OOT2-145-T6-3642 44 19 GNF2-P1 ODG2B401-6G6.0/2G5 .0/6G4 .0-1OOT2-145-T6-3640 28 19 GNF2-P1 ODG2B406-6G6.0/6G5 .0/2G4 .0-1 OOT2-145-T6-3641 16 19 GNF2-P1 ODG2B401 -6G6.0/2G5 .0/6G4 .0-1 OOT2-145-T6-3640 8 19 GNF2-P1 ODG2B389-6G6.0/2G5.0/6G4 .0-1 OOT2-145-T6-3142 92 18 GNF2-P1 ODG2B375-6G6 .0/7G5 .0-1OOT2-145-T6-3434 16 19 GNF2-P1 ODG2B406-6G6 .0/2G5 .0/6G4 .0-1OOT2-145-T6-4171 56 20 GNF2-P1 ODG2B398-5G6 .0/8G5 .0-1OOT2-145-T6-4172 24 20 GNF2-P1 ODG2B389-15G5.0-1OOT2-145-T6-4173 40 20 GNF2-P1 ODG2B375-7G6 .0/6G5 .0-1OOT2-145-T6-4 174 32 20 New Bundles for Cycle 21 GNF2-P1 ODG2B387-15G6.0-1OOT2-145-T6-4308 24 21 GNF2-P1 ODG2B387-12G6.0/4G5 .0-1OOT2-145-T6-4309 30 21 GNF2-P1 ODG2B398-14G5.0-1OOT2-145-T6-4310 28 21 GNF2-P1 ODG2B387-13G6.0-1OOT2-145-T6-4311 16 21 GNF2-P1 ODG2B387-15G6.0-1OOT2-145-T6-4308 8 21 GNF2-P1 ODG2B387-12G6.0/4G5.0-1OOT2-145-T6-4309 10 21 GNF2-P1 ODG2B398- 14G5.0-1OOT2-145-T6-4310 20 21 GNF2-P1 ODG2B387-13G6.0-1OOT2-145-T6-4311 8 21 Total 580 Revision 34 Cycle 21 COLR Page 35 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERA TING LIMITS REPORT RTYPE : G4 .02 FIGURE 4.0-1 Reactor Vessel Core Loading Pattern 3 7 GNF 1

4 19 19 ,, 10 19 11 5

12 13 19 5 14 19 15 5

16 19 17 5

18 11 19 19 20 19 21 22 23 24 25 26 GNF 2 19 19 19 19 7 12 8 8 12 7 19 19 19 19 19 19 11 20 21 23 21 15 22 22 15 21 23 21 20 11 19 19 4 19 19 11 21 21 27 31 31 27 21 31 31 27 27 21 21 5 19 4 5 6 11 5 7 13 31 12 23 13 23 8 8 23 13 23 12 31 13 7 19 6 19 5 6 19 19 7 12 21 26 21 12 23 25 24 24 25 23 12 21 26 21 12 1 5 19 11 19 19 21 13 21 30 21 30 24 29 24 26 21' 24 29 24 30 21 26 21 13 21 19 19 19 19 5 20 21 31 26 21 26 23 26 2* 25 8 8 25 24 26 23 26 21 26 31 21 20 19 19 19 19 21 27 21 23 16 12 20 13 13 20 25 12 16 23 21 27 21 5 19 10 19 19 23 27 12 23 12 30 24 26 12 16 25 22 32 22 22 32 22 16 12 26 30 24 12 "

23 27 23 19 11 10 11 5 7 21 31 13 23 29 24 25 n 28 15 28 28 15 28 22 25 24 29 23 13 31 21 7 5 11 12 19 12 15 27 23 25 24 25 20 32 15 28 12 12 28 15 32 20 25 24 25 23 27 15 12 19 u 13 19 8 22 27 8 24 26 a 13 22 28 13 12 12 13 28 22 13 8 26 24 8 27 22 8 5 13 14 5 8 22 27 8 24 26 8 13 22 28 20 12 12 20 28 n 13 8 26 24 8 21 22 8 19 14 15 19 12 15 27 23 25 24 25 13 32 15 28 12 12 28 15 32 20 25 24 25 23 27 15 12 19 15 16 19 7 21 31 13 23 29 24 25 22 28 15 28 2S 15 28 22 25 24 29 23 13 31 21 7 5 16 17 19 19 23 27 23 12 24 26 12 16 n 32 22 22 32 22 16 12 26 24 12 23 27 23 6 11 17 18 19 19 21 27 12 21 30 23 16 12 25 13 13 13 20 25 12 16 23 30 21 12 27 21 5 19 18 19 6 19 20 21 31 26 21 26 23 26 24 25 8 8 25 24 26 23 26 21 28 31 21 20 19 19 19 20 19 8 19 21 13 21 30 21 30 24 29 24 26 24 26 24 29 23 24 30 21 21 26 21 12 13 7

21 19 5

19 19 19 20 21 22 19 19 19 ,,

7 12 7

21 13 26 31 21 12 12 23 23 13 25 23 8 24 8

25 23 13 12 23 12 26 31 21 13 7 19 19 5 21 22 23 19 19 21 21 27 27 31 31 27 27 31 31 27 27 21 21 19 19 23 24 19 19 19 20 21 23 21 15 22 22 15 21 23 21 20 11 19 19 24 25 19 19 19 19 7 12 8 8 12 7 19 19 19 19 25 26 19 19 11 19 5 5 19 19 5 5 19 11 11 19 26 GNF 3 4 7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 GNF

1. of Cy de IAT Bundle Description Bundles Loaded 5 GNF2-P10DG2B388-6G6.0/7G5.G- 100T2-145-T6-3143 21 18 6 GNFZ.-P1 ODG2B388-6G6.0/7G5.G-1 OOT2- 145-T6-3143 5 18 7 GN F2-P1 ODG2B395-6G6.0/9G5.G-1 OOT2- 145-T6-3422 16 19 8 GNF2-P1 ODG2B401-6G6.0/8G5.011 G4.G-1 OOT2-145-T6-3421 24 19 11 GNFZ.-P1 ODG2B389-6G6.018G5.G-100T2-145-T6-3141 14 18 12 GNFZ.-P10DG29407-6G6.012G5.0/6G4 .G-100T2-145-T6-3642 44 19 13 GNF2-P1 ODG2B401-6G6.012G5.0/6G4 .G-1 OOT2-145-T6-3640 28 19 15 GNF2-P10DG2B406-6G6.0/6G5.0/2G4 .G-100T2-145-T6-3641 16 19 16 GN F2-P 1ODG2B401-6G6.0/2G5.0/6G4.G-1 OOT2-145-T6-3640 8 19 19 GNFZ.-P10DG2B389-6G6.012G5.016G4.G-100T2-145-T6-3142 92 18 20 GN F2-P1 ODG2B375-6G6.0/7G5.G- 1OOT2-145-T6-3434 16 19 21 GNF2-P10DG29406-6G6.0/2G5.0/6G4 .G-1 OOT2-145-T6-4171 56 20 22 GNFZ.-P10DG2B398-5G6.0/8G5.G-100T2- 145-T6-4172 24 20 23 GNFZ.-P10DG2B389-15G5.G-100T2* 145-T6-4173 40 20 24 GNF2-P 10DG29375-7G6.0/6G5.G-1 OOT2- 145-T6-4174 32 20 25 GNFZ.-P10DG2B387-15G6.G-100T2-145-T6-4308 24 21 26 GNF2-P10DG2B387-12G6.014G5.G-100TZ.-145-T6-4309 30 21 27 GNF2-P1 ODG2B398-14G5.G-100T2- 145-T6-4310 28 21 28 GNF2-P1 ODG2B387- 13G6.G-100T2-145-T6-4311 16 21 29 GNF2-P1 ODG2B387- 15G6.G- 100T2-145-T6-4308 8 21 30 GNF2-P1 ODG2B387-12G6.014G5.G-100TZ.-145-T6-4309 10 21 31 GNF2-P1ODG2B398-14G5.G-100T2- 145-T6-4310 20 21 32 GNFZ.-P1 ODG2B387-13G6.G-100T2- 145-T6-4311 8 21 Total 580 Revision 34 Cycle 21 COLR Page 36 of 37

PILGRIM NUCLEAR POWER STATION PNPS CORE OPERATING LIMITS REPORT RTYPE : G4.02 5.a REFERENCES 5.1 NEDE-24a11-P-A-2a and NEDE-24a11-P-A-2a-US. "General Electric Standard Application for Reactor Fuel". December 2a13. eB record : KGO-ENO-GEN-14-a39 .

5.2. EC47669 , Cycle 21 Reload Core Design .

5.3 . NEDC-31852-P, rev. 4, "Pilgrim Nuclear Power Station SAFER/GESTR-LOCA Loss-of-Coolant Accident Analysis for PNPS", January 2aa8.

5.4 . NEDC-33155P , Rev.a, Application of Stability Long-Term Solution Option 1-D To Pilgrim Nuclear Power Station , October 2aa4 .

5.5. Letter 2.14 .a76 , License Amendment Request for Cycle £1_SLMCPR.

5.6 . GE-NE-GENE-aaaa-aa33-6871-a1 , Rev. a, Pilgrim Option 1-D APRM Flow Biased Set points, October 2aa4 .

5.7. GE-NE-aaaa-aa27-53a1 , Rev 2, Pilgrim Nuclear Power Station Single Loop Operation ,

April 2aa6.

5.8. S&SA-186 , % ().W 0 for use with Stability Option 1-D for Pilgrim (applicable to SLO) .

5.9. SUDDS/RF 94-42 , NEDC-323a6P , "Maximum Extended Load Line Limit Analyses,

March 1994.

5.1a . SUDDS/RF 88-16a , NEDC-31312-P, "ARTS Improvement Program Analysis for Pilgrim Nuclear Power Station", September 4, 1987.

5.11. A22-aa1 a9-aa MAPLHGR set down process explanation for Pilgrim , November 2aa1 .

5.12. ECH-NE-a9-aaa19, R2 , GNF2NFI , GEH-aaaa-aa85-9a69-R2 , GNF2 Fuel Design Cycle Independent Analyses for Entergy PNPS , March 2a11.

5.13. ER a311 a96a , Stability 1-D implementation .

5.14. PNPS-RPT-a3-aaaa1 , Rev. Z. "Pilgrim Power To Flow Map Report."(EC56a46) 5.15. ECH-NE-15-aaaa8, "Supplemental Reload Licensing Report, Reload 2a , Cycle 21.

February 2a1§, aaaN9841-SRLR Rev.a (EC56a46).

5.16. ECH-NE-1§-aaaa6, EC55561 , PNPS Cycle 21 OPL-3 Form .

5.17. ECH-NE-15-aaaa9, aaaN9842-FBIR Rev.a , January 2a1§, "PNPS Cycle 21 Fuel Bundle Information Report (FBIR)" (EC56a46).

5.18. SUDDS/RF 02-86 , GNF SER issued by NRC approving elimination of Upper Bound PCT limit requirement.

5.19 . EC7933 documents OPL-4 & 5 LOCA Inputs .

5.2a . NED0-32465A, Licensing Topical report "Stability Detect and Suppress Solutions Licensing Basis Methodology for Reload Application, August 1996.

5.21 . ECH-NE-a9-aaa18, PNPS GNF2 ECCS-LOCA Evaluation .

5.22 . ECH-NE-2a13-aaa26 , "Increased Operating Dome Pressure Band For Pilgrim.

5.23 . NEDE-3327aP , GNF2 Advantage Generic Compliance with GESTAR II) , Revision§, May 2a13 (This reference is also known as Amendment 22 report for GNF2) . (record in eB:

KGO-ENO-JB1 a85) 5.24 . NEDE-33213, ODYSY Application for Stability Licensing Calculations Including Option 1-D and II Long Term Solutions, April 2aa9 5.25. CR-PNP-2a14-59a4. Inappropriate Use of Reactor Feed Pump Trip in transient analysis 5.26 . EC47669-7.010, 002N3765-00, GNF2-B36-P3-HK1-18PDN Limits Tables Revision 34 Cycle 21 COLR Page 37 of 37

Attachment 4 Letter Number 2.17.059 , KGO-ENO-HK1-17-081 , Affidavit for Enclosure 4, Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34 , GNF Proprietary Information - Class II (Internal)

ENCLOSURE 6 KGO-ENO-HK1-17-081 Affidavit for Enclosure 4

Global Nuclear Fuel - Americas AFFIDAVIT I, Brian R. Moore, state as follows :

(1) I am General Manager, Core & Fuel Engineering, Global Nuclear Fuel - Americas, LLC (GNF-A), and have been delegated the function of reviewing the information described in paragraph (2) which is sought to be withheld, and have been authorized to apply for its withholding.

(2) The information sought to be withheld is contained in Enclosure 4 of GNF ' s letter, KGO-ENO-HKl-17-081 , Kimberly O' Connor (GNF) to Neta Szwarc (Entergy), entitled "Pilgrim Nuclear Power Station Cycle 20 Core Operating Limits Report (COLR) Revision 33 and Cycle 21 COLR Revision 34, 35 , and 36 - Proprietary and Non-Proprietary Versions," July 28, 2017. GNF proprietary information in Enclosure 4, which is entitled "Pilgrim Nuclear Power Station Cycle 21 Core Operating Limits Report, Revision 34," is identified by a dotted underline inside double square brackets. [[Ih.i.~--~-~n~-~Df~_.!~---~n

~~~mP. ! ~, '.~}.]] A " [[" marking at the beginning of a table, figure , or paragraph closed with a

"]] marking at the end of the table, figure or paragraph is used to indicate that the entire content between the double brackets is proprietary. In each case, the superscript notation l 3 l refers to Paragraph (3) of this affidavit, which provides the basis for the proprietary determination.

(3) Jn making this application for withholding of proprietary information of which it is the owner or licensee, GNF-A relies upon the exemption from disclosure set forth in the Freedom of Information Act ("FOIA"), 5 USC Sec. 552(b)(4), and the Trade Secrets Act, 18 USC Sec. 1905 , and NRC regulations I 0 CFR 9.17(a)(4), and 2.390(a)(4) for "trade secrets" (Exemption 4). The material for which exemption from disclosure is here sought also qualify under the narrower definition of "trade secret", within the meanings assigned to those terms for purposes of FOIA Exemption 4 in, respectively, Critical Mass Energy Project v. Nuclear Regulatory Commission, 975F2d871 (DC Cir. 1992), and Public Citizen Health Research Group v. FDA, 704F2d 1280 (DC Cir. 1983).

(4) Some examples of categories of information which fit into the definition of proprietary information are:

a. Information that discloses a process, method, or apparatus, including supporting data and analyses, where prevention of its use by GNF-A's competitors without license from GNF-A constitutes a competitive economic advantage over other companies;

b. Information which, if used by a competitor, would reduce his expenditure of resources or i'!lprove his competitive position in the design, manufacture, shipment, installation, assurance of quality, or licensing of a similar product;

c. Information which reveals aspects of past, present, or future GNF-A customer-funded development plans and programs, resulting in potential products to GNF-A; KGO-ENO-HKI-17-081 Enclosure 4 Affidavit Page I of 3

d. Information which discloses patentable subject matter for which it may be desirable to obtain patent protection.

The information sought to be withheld is considered to be proprietary for the reasons set forth in paragraphs (4)a. and (4)b. above.

(5) To address 10 CFR 2.390 (b) (4), the information sought to be withheld is being submitted to NRC in confidence. The information is of a sort customarily held in confidence by GNF-A, and is in fact so held. The information sought to be withheld has, to the best of my knowledge and belief, consistently been held in confidence by GNF-A , no public disclosure has been made, and it is not available in public sources. All disclosures to third parties including any required transmittals to NRC, have been made, or must be made, pursuant to regulatory provisions or proprietary agreements which provide for maintenance of the information in confidence. Its initial designation as proprietary information, and the subsequent steps taken to prevent its unauthorized disclosure, are as set forth in paragraphs (6) and (7) following.

(6) Initial approval of proprietary treatment of a document is made by the manager of the originating component, the person most likely to be acquainted with the value and sensitivity of the information in relation to industry knowledge, or subject to the terms under which it was licensed to GNF-A .

(7) The procedure for approval of external release of such a document typically requires review by the staff manager, project manager, principal scientist or other equivalent authority, by the manager of the cognizant marketing function (or his delegate), and by the Legal Operation, for technical content, competitive effect, and determination of the accuracy of the proprietary designation. Disclosures outside GNF-A are limited to regulatory bodies, customers, and potential customers, and their agents, suppliers, and licensees, and others with a legitimate need for the information, and then only in accordance with appropriate regulatory provi sions or proprietary agreements .

(8) The information identified in paragraph (2) is classified as proprietary because it contains details of GNF-A ' s fuel design and licensing methodology . The development of thi s methodology, along with the testing, development and approval was achieved at a significant cost to GNF-A.

The development of the fuel design and licensing methodology along with the interpretation and application of the analytical results is derived from an extensive experience database that constitutes a major GNF-A asset.

(9) Public disclosure of the information sought to be withheld is likely to cause substantial harm to GNF-A's competitive position and foreclose or reduce the avai lability of profit-making opportunities. The information is part of GNF-A's comprehensive BWR safety and technology base, and its commercial value extends beyond the original development cost.

The value of the technology base goes beyond the extensive physical database and KGO-ENO-HKl-17-081Enclosure4 Affidavit Page 2 of 3

analytical methodology and includes development of the expertise to determine and apply the appropriate evaluation process. In addition, the technology base includes the value derived from providing analyses done with NRC-approved methods.

The research, development, engineering, analytical, and NRC review costs comprise a substantial investment of time and money by GNF-A.

The precise value of the expertise to devise an evaluation process and apply the correct analytical methodology is difficult to quantify, but it clearly is substantial.

GNF-A's competitive advantage will be lost if its competitors are able to use the results of the GNF-A experience to normalize or verify their own process or if they are able to claim an equivalent understanding by demonstrating that they can arrive at the same or similar conclusions.

The value of this information to GNF-A would be lost if the information were disclosed to the public. Making such information available to competitors without their having been required to undertake a similar expenditure of resources would unfairly provide competitors with a windfall, and deprive GNF-A of the opportunity to exercise its competitive advantage to seek an adequate return on its large investment in developing and obtaining these very valuable analytical tools.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on this 28th day of July 2017.

Brian R. Moore General Manager, Core & Fuel Engineering Global Nuclear Fuel - Americas, LLC 3901 Castle Hayne Road Wilmington, NC 28401 Brian.Moore@ge.com KGO-ENO-HKl-17-081Enclosure4 Affidavit Page 3 of 3