L-23-049, Core Operating Limits Report for Operating Cycle 20

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Core Operating Limits Report for Operating Cycle 20
ML23090A013
Person / Time
Site: Perry FirstEnergy icon.png
Issue date: 03/30/2023
From: Elliott C
Energy Harbor Nuclear Corp
To:
Office of Nuclear Reactor Regulation, Document Control Desk
References
L-23-049
Download: ML23090A013 (1)
v • d • e


Text

energy Energy Harbor Nuclear Corp.

harbor Perry Nuclear Power Plant 10 Center Road P.O. Box 97 Perry, Ohio 44081 Christopher M. Elliott 440-280-7300 General Plant Manager, Nuclear March 30, 2023 L-23-049 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

SUBJECT:

Perry Nuclear Power Plant Docket No. 50-440, License No. NPF-58 Core Operating Limits Report for Operating Cycle 20 Enclosed is Revision 35 of the Core Operating Limits Report for the Perry Nuclear Power Plant (PNPP). This revision is submitted to the Nuclear Regulatory Commission (NRC) in accordance with PNPP Technical Specification 5.6.5, "Core Operating Limits Report (COLR)." A summary of the revision begins on page 25 of the COLR.

There are no regulatory commitments contained in this submittal. If there are any questions or if additional information is required, please contact Mr. Phil H. Lashley, Manager - Fleet Licensing, at (330) 696-7208.

Sincerely, Ch~ r;;P

Enclosure:

Core Operating Limits Report for the Perry Nuclear Power Plant Unit 1 Cycle 20 (Reload 19), Revision 35 cc: NRC Region Ill Administrator NRC Resident Inspector NRC Project Manager

Enclosure L-23-049 Core Operating Limits Report for the Perry Nuclear Power Plant Unit 1 Cycle 20 (Reload 19)

March 2023 (26 pages follow)

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 1 of 26 CORE OPERATING LIMITS REPORT FOR THE PERRY NUCLEAR POWER PLANT UNIT 1 CYCLE 20 (RELOAD 19)

Functional Location (J11)

Plant Data Book Effective Date: 3-14-23 Preparer: Kyle Kcrmar / 3-12-23_____

Date Approver: Larry Francis Jr. / 3-13-23_____

Date

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 2 of 26 TABLE OF CONTENTS Page

1.0 INTRODUCTION

4

2.0 REFERENCES

5 3.0 T.S. 3.2.1 - AVERAGE PLANAR LINEAR HEAT GENERATION RATE (APLHGR) 7 3.1 MAPLHGR LIMIT 7 3.2 FLOW DEPENDENT AND POWER DEPENDENT MAPFAC -

TWO LOOP OPERATION 8 3.3 FLOW DEPENDENT AND POWER DEPENDENT MAPFAC - 8 SINGLE LOOP OPERATION 4.0 T.S. 3.2.2 - MINIMUM CRITICAL POWER RATIO (MCPR) 10 4.1 Safety Limit MCPR99.9% 10 4.2 OPERATING LIMIT MCPR and MCPR LIMIT ADDER 10 4.3 FLOW DEPENDENT MCPRf 11 4.4 POWER DEPENDENT MCPRp 12 4.5 SINGLE LOOP OPERATION - MCPR LIMITS 13 5.0 T.S. 3.2.3 - LINEAR HEAT GENERATION RATE (LHGR) 19 5.1 LHGR LIMIT 19 5.2 FLOW DEPENDENT LHGRFACf 19 5.3 POWER DEPENDENT LHGRFACp 20 5.4 SINGLE LOOP OPERATION - LHGR LIMITS 21

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 3 of 26 Page 6.0 T.S. 3.3.1.1 - REACTOR PROTECTION SYSTEM 25 INSTRUMENTATION 7.0 T.S. 3.3.1.3 - OSCILLATION POWER RANGE MONITOR 25 (OPRM) INSTRUMENTATION 8.0 SCOPE OF REVISION 25

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 4 of 26

1.0 INTRODUCTION

This Core Operating Limits Report (COLR) for the Perry Nuclear Power Plant (PNPP) Unit 1 is prepared in accordance with the requirements of PNPP Technical Specification Administrative Control 5.6.5. The core operating limits presented herein were determined using NRC-approved methods (Obligation 1 and Obligation 2). The core operating limits for the Global Nuclear Fuel (GNF) fuel in PNPP Unit 1 for Cycle 20 are documented in Obligations 3, 4, 5, 14, 16, 17, and 20 and summarized herein for the following PNPP Unit 1 Technical Specifications:

1. Average Planar Linear Heat Generation Rate (APLHGR) Limits for each fuel/lattice type, including the power and flow dependent MAPFAC multipliers with the single loop MAPLHGR reduction factor. (Technical Specification 3.2.1)
2. Minimum Critical Power Ratio Limit including the Operating Limit MCPR along with the power and flow dependent MCPR curves. (Technical Specification 3.2.2)

Power dependent MCPR Limit curves are provided for operation with equipment in service (EIS), one pressure regulator out of service (PROOS), and power load unbalance out of service (PLUOOS).

3. Linear Heat Generation Rate (LHGR) Limits for each fuel/lattice type, including the power and flow dependent LHGRFAC curves with the single loop LHGRFAC reduction factor. (Technical Specification 3.2.3)

Power dependent LHGRFAC curves are provided for operation with equipment in service (EIS), one pressure regulator out of service (PROOS), and power load unbalance out of service (PLUOOS).

4. The simulated thermal power time constant. (Technical Specification 3.3.1.1, SR 3.3.1.1.14)
5. Oscillation Power Range Monitor (OPRM) Instrumentation. (Technical Specification 3.3.1.3)

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 5 of 26 The oscillation power range monitor setpoint methods have been changed to NEDE-33766P-A, GEH Simplified Stability Solution (GS3). The GS3 methods are a generic approach to establishing the OPRM period - based detection algorithm setpoints. This generic approach assumes feedwater temperature reductions are limited to 120F anytime during the cycle.

Cycle 20 (Reload 19) core design was developed assuming feedwater temperature reductions of 100F during the cycle and 170F beyond the end of the normal fuel cycle. Plant operations will be limited to 100F during the cycle to account for the assumptions of the core design and 120F beyond the end of the normal fuel cycle to account for the GS3 limitation.

Calculation FM-075, Support for the Core Operating Limits Report, details the development of the various graphs contained within this COLR.

2.0 REFERENCES

2.1 Discretionary None 2.2 Obligations

1. General Electric Standard Application for Reactor Fuel, NEDE-24011-P-A-31, November 2020; and the US Supplement, NEDE-24011-P-A-31-US, November 2020
2. Reactor Stability Detect and Suppress Solutions Licensing Basis Methodology for Reload Applications, Licensing Topical Report, NEDO-32465-A, August 1996
3. Supplemental Reload Licensing Report for Perry 1 Reload 19 Cycle 20, GNF Document 006N9287, Revision 0, January 2023
4. Fuel Bundle Information Report for Perry 1 Reload 19 Cycle 20, GNF Document 006N9288 Revision 0, November 2022
5. Calculation FM-012, OPRM Device Settings and Setpoints, Revision 5
6. Technical Specification 2.1.1.2, Safety Limit MCPR, Amendment No. 188

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 6 of 26

7. Technical Specification 3.2.1, Average Planar Linear Heat Generation Rate, Amendment No. 171
8. Technical Specification 3.2.2, Minimum Critical Power Ratio, Amendment No. 171
9. Technical Specification 3.2.3, Linear Heat Generation Rate, Amendment No. 171
10. Technical Specification 3.3.1.1, Reactor Protection System Instrumentation (SR 3.3.1.1.14), Amendment No. 171
11. Technical Specification 3.3.1.3, OPRM Instrumentation (SR 3.3.1.3.3),

Amendment 118 and 171

12. Technical Specification 5.6.5, Core Operating Limits Report, Amendment No. 188
13. Neutron Monitoring System Design Specification, 22A3739, Revision 6
14. Calculation FM-075, Support for the Core Operating Limits Report, Revision 11
15. FTI-B0012, Single Loop Operation
16. GEH Safety Communication SC 16-02 R0, February 22, 2016, Clarification of Updates to EOR Exposure for 3DM Databanks
17. Tables B-1 (UO2) and B-2 (U,GdO2) of GNF2 Advantage Generic Compliance with NEDE-24011-P-A, (GESTAR II), NEDC-33270P, Revision 11, August 2020.
18. Condition Report 2015-06018 - Use of GNF Provided Proprietary Information
19. NEDE-33766P-A, Revision 1 March 2015, GEH Simplified Stability Solution (GS3)
20. 000N0605 Revision 4, January 2023, GNF2 Fuel Design Cycle-Independent Analyses for Perry Nuclear Power Plant

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 7 of 26

21. Condition Report 2017-08501, Core Operating Limits Report - Single Loop Power Dependent MCPRp Calculation is Conservative
22. Condition Report 2021-04775, Safety Communication SC 21-04, Revision 1, Fuel Support Side Entry Orifice Meta-Stable Flow for 2 Beam Locations in the BWR/6 Reactors Commitments addressed in this document:

None 3.0 T.S. 3.2.1 - AVERAGE PLANAR LINEAR HEAT GENERATION RATE (APLHR)

All Average Planar Linear Heat Generation Rates (APLHGRs) shall be less than or equal to the result obtained from multiplying the applicable MAPLHGR limit by the smaller of either the flow dependent APLHGR factor (MAPFACf) or the power dependent APLHGR factor (MAPFACp).

MAXIMUM APLHGR LIMIT = MAPLHGR LIMIT

  • smaller (MAPFACf or MAPFACp)

MAPLHGR Limits and MAPFACf and MAPFACp are defined in Obligation 3.

3.1 MAPLHGR LIMIT Maximum Average Planar Linear Heat Generation Rates (MAPLHGRs) Limits for the GNF2 fuel types are depicted in the following figure:

Figure 3.2.1-1 MAPLHGR Versus Average Planar Exposure The MAPLHGR Limits are independent of the selected Flexibility Option (Equipment In Service, Pressure Regulator Out Of Service, and Power Load Unbalance Out Of Service).

3.2 FLOW DEPENDENT AND POWER DEPENDENT MAPFAC - TWO LOOP OPERATION The Flow Dependent MAPLHGR Factor (MAPFACf) and the Power Dependent APLHGR Factor (MAPFACp) are set equal to 1.0.

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 8 of 26 3.3 FLOW DEPENDENT AND POWER DEPENDENT MAPFAC - SINGLE LOOP OPERATION For Single Loop Operation, the Flow Dependent MAPLHGR Factor (MAPFACf) and Power Dependent APLHGR Factor (MAPFACp) are set equal to 0.8.

The Single Loop Operation limits take effect when reset for single loop operation per LCO 3.4.1,"Recirculation Loops Operating. This is consistent with note (b) to Table 3.3.1.1-1 of the Technical Specifications.

The 3DMONICORE computer software will automatically shift between 2 LOOPS ON and 1 LOOP ON modes of operation on transfer to Single Loop Operation.

The change in MAPFACf and MAPFACp will occur automatically. Guidance in FTI-B0012 can be used to verify proper functioning of the 3DMONICORE System. If the 3DMONICORE System is not functioning properly, FTI-B0012 will implement administrative limits until 3DMONICORE is properly calculating MAPLHGR Limits.

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 9 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 10 of 26 4.0 T.S. 3.2.2 - MINIMUM CRITICAL POWER RATIO (MCPR)

All Minimum Critical Power Ratios (MCPRs) shall be greater than or equal to the MCPR Limit. The MCPR Limit is equal to the higher of the Operating Limit MCPR, the Flow Dependent MCPR (MCPRf), and the Power Dependent MCPR (MCPRp) plus the MCPR Limit Adder.

MCPR Limit = maximum (Operating Limit MCPR, MCPRf, MCPRp) +

MCPR Limit Adder Operating Limit MCPR along with MCPRf, MCPRp, and MCPR Limit Adder are defined in Obligation 3 and Obligation 20.

4.1 Safety Limit MCPR99.9%

For Cycle 20 (Reload 19) the calculated value of Two Loop - Safety Limit MCPR99.9% is 1.07 and the calculated value of Single Loop - Safety Limit MCPR99.9% is 1.09.

4.2 OPERATING LIMIT MCPR and MCPR LIMIT ADDER For Cycle 20, the Operating Limit MCPR is a function of the fuel type and exposure. Middle of Cycle (MOC) exposure point is defined as End of Rated (EOR) exposure point minus the Cycle Delta Exposure. For Cycle 20, the EOR exposure is defined in the Cycle 20 Cycle Management Report. For Cycle 20, the Cycle Delta Exposure is set to 2916 MWd/ST. Thus, MOC is equal to EOR -

2916 MWd/ST.

The End of Rated (EOR) is defined as the cycle exposure corresponding to all rods out, 100% power / 100% flow, and rated feedwater temperature. As such, the EOR is a projection based on various assumptions such as how the previous cycle operated, current cycle operations, core loading changes during the refueling outage, inoperable control rods, suppressed fuel defects, etc. The projected EOR exposure point may have to be updated during the cycle to ensure the appropriate MCPR limits applied (Obligation 16). The changes in the EOR value are documented in supplements or revisions to the Cycle Management Report.

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 11 of 26 SC 21-04 Revision 1 discusses an issue with how 3DMONICORE calculates flow through fuel bundles in what are called the two beam locations. This potential problem could cause 3DMONICORE to overestimate bundle critical power ratio.

To account for this issue Operating Limit MCPRs are being raised by the following formula:

Operating Limit MCPR (SC 21-04) = A

  • OL MCPR - B Where A = 1.106 and B = 0.074 The Operating Limit MCPR is additionally defined by the selected Flexibility Option:

Equipment In Service (EIS)

Pressure Regulator Out Of Service (PROOS)

Power Load Unbalance Out of Service (PLUOOS)

Cycle 20 Operating Limit MCPR (SC 21-04) is defined as:

Operating Limit EIS/PROOS MCPR (SC 21-04) /PLUOOS BOC to < MOC 1.37 MOC to EOC 1.43 For Cycle 20, the MCPR Limit Adder is equal to 0.00.

For Cycle 20, no change to MCPR limits is required for planned reduction of feedwater temperature to as low as 325.5F. Final feedwater temperature may be reduced to 305.5F after all control rods are withdrawn at the end of cycle if the OPRMs are OPERABLE.

The 3DMONICORE computer software will automatically shift the Operating Limit MCPR based on the MOC exposure point.

4.3 FLOW DEPENDENT MCPRf The Flow Dependent MCPR Limit (MCPRf) is independent of fuel type, exposure, and the selected Flexibility Option (Equipment In Service, Pressure Regulator Out Of Service, and Power Load Unbalance Out Of Service).

MCPRf values were adjusted as required by SC 21-04 Revision 1.

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 12 of 26 The Flow Dependent MCPR Limit is depicted in the following figure:

Figure 3.2.2-1, Flow Dependent MCPR Limit (MCPRf) 4.4 POWER DEPENDENT MCPRp The Power Dependent MCPR Limit (MCPRp) is independent of the fuel type and exposure but is dependent on the Flexibility Option selected. MCPRp figures are provided for Equipment In Service (EIS) and Pressure Regulator Out Of Service /

Power Load Unbalance Out Of Service.

When operating below or equal to 38% RTP, MCPRp is independent of fuel type, exposure, and flexibility option.

When above 38% RTP, the power dependent MCPRp is dependent on the fuel type, exposure, flexibility option, and the variable Kp.

MCPRp = Kp

  • Operating Limit MCPR (fuel type, exposure, flexibility option)

MCPRp (below or equal to 38% RTP) values were adjusted as required by SC 21-04 Revision 1.

The Kp values were adjusted as required by SC 21-04 Revision 1.

The Power Dependent MCPR Limit is depicted in the following figures:

Figure 3.2.2-2 Power Dependent MCPR Limit (MCPRp)

Equipment in Service Figure 3.2.2-3 Power Dependent MCPR Limit (MCPRp)

Pressure Regulator Out of Service Figure 3.2.2-4 Power Dependent MCPR Limit (MCPRp)

Power Load Unbalance Out of Service The 3DMONICORE computer software will not automatically shift to the Pressure Regulator Out of Service Thermal Limits. The 3DMONICORE databank will be manually changed using a software change request. Until the 3DMONICORE databank is updated for the Pressure Regulator Out of Service Thermal Limits, an MFLCPR Administrative Limit will be issued to Operations. Reactor

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 13 of 26 Engineering will ratio the calculated MCPRp Multipliers to establish the MFLCPR Administrative Limit.

The 3DMONICORE computer software will not automatically shift to the Power Load Unbalance Out of Service Thermal Limits. The 3DMONICORE databank will be manually changed using a software change request. Until the 3DMONICORE databank is updated for the Power Load Unbalance Out of Service Thermal Limits, an MFLCPR Administrative Limit will be issued to Operations. Reactor Engineering will ratio the calculated MCPRp Multipliers to establish the MFLCPR Administrative Limit.

4.5 SINGLE LOOP OPERATION - MCPR LIMITS For Cycle 20 (Reload 19) the difference between the Two Loop - Safety Limit MCPR99.9% and the Single Loop - Safety Limit MCPR99.9% is 0.02.

For Cycle 20, in order to effect the Safety Limit MCPR99.9% change in Single Loop Operations, the MCPR Limit Adder will be set to 0.03 based on SC 21-04 Revision 1 and OPL-7, 3DMonicore Databank Input. This will provide a small level of additional margin when considering MCPR in Single Loop Operations and any of the operating modes (EIS, PLUOOS, PROOS).

Planned reduction of rated feedwater temperature from nominal rated feedwater temperature is not permitted during plant operation with the reactor recirculation system in Single Loop Operation.

The Single Loop Operation limits take effect when reset for single loop operation per LCO 3.4.1,"Recirculation Loops Operating. This is consistent with note (b) to Table 3.3.1.1-1 of the Technical Specifications.

The 3DMONICORE computer software will automatically shift between 2 LOOPS ON and 1 LOOP ON modes of operation on transfer to Single Loop Operation.

The change in the MCPR Limit Adder will occur automatically. The guidance in FTI-B0012 can be used to verify proper functioning of the 3DMONICORE System. If the 3DMONICORE System is not functioning properly, FTI-B0012 will implement administrative limits until 3DMONICORE is properly calculating MCPR values.

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 14 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 15 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 16 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 17 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 18 of 26 5.0 T.S. 3.2.3 - LINEAR HEAT GENERATION RATE (LHGR)

All Linear Heat Generation Rates (LHGRs) shall be less than or equal to the result obtained from multiplying the applicable LHGR limit by the smaller of either the flow dependent LHGR factor (LHGRFACf) or the power dependent LHGR factor (LHGRFACp).

MAXIMUM LHGR LIMIT = LHGR LIMIT

  • smaller (LHGRFACf or LHGRFACp)

LHGR Limits and LHGRFACf and LHGRFACp are defined in Obligations 3, 4, 16, 17, and 20.

5.1 LHGR LIMIT Linear Heat Generation Rates (LHGRs) Limits for the GNF2 Uranium only fuel pins and Gadolinia bearing fuel pins are listed in:

Tables B-1 (UO2) and B-2 (U,GdO2) of GNF2 Advantage Generic Compliance with NEDE-24011-P-A, (GESTAR II), NEDC-33270P, Revision 10, March 2020.

For GNF2 Gadolinia bearing fuel pins, the maximum Gadolinia content of a fuel pin is 7 wt-% Gd2O3.

The LHGR Limits are independent of the selected Flexibility Option (Equipment in Service, Pressure Regulator Out of Service, and Power Load Unbalance Out of Service).

5.2 FLOW DEPENDENT LHGRFACf The Flow Dependent LHGR Factor (LHGRFACf) is independent of fuel type, exposure, and the selected Flexibility Option (Equipment in Service, Pressure Regulator Out of Service, and Power Load Unbalance Out of Service).

The Flow Dependent LHGRFACf is depicted in the following figure:

Figure 3.2.3-1 Flow Dependent LHGR Factor (LHGRFACf)

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 19 of 26 5.3 POWER DEPENDENT LHGRFACp The Power Dependent LHGR Factor (LHGRFACp) is independent of fuel type and exposure but dependent on the selected Flexibility Option (Equipment in Service, Pressure Regulator Out of Service, and Power Load Unbalance Out of Service).

A separate LHGRFACp curve is provided for Equipment in Service, Pressure Regulator Out of Service, and Power Load Unbalance Out of Service operating conditions.

The Power Dependent LHGRFACp are depicted in the following figures:

Figure 3.2.3-2 Power Dependent LHGR Factor (LHGRFACp)

Equipment in Service Figure 3.2.3-3 Power Dependent LHGR Factor (LHGRFACp)

Pressure Regulator Out of Service Figure 3.2.3-4 Power Dependent LHGR Factor (LHGRFACp)

Power Load Unbalance Out of Service The 3DMONICORE computer software will not automatically shift to the Pressure Regulator Out of Service or Power Load Unbalance Out of Service Thermal Limits. The 3DMONICORE databank will be manually changed using a software change request. Until the 3DMONICORE databank is updated for the Pressure Regulator Out of Service or Power Load Unbalance Out of Service Thermal Limits, an MFLPD Administrative Limit will be issued to Operations. Reactor Engineering will ratio the calculated LHGRFACp Multipliers to establish the MFLPD Administrative Limit.

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 20 of 26 5.4 SINGLE LOOP OPERATION - LHGR LIMITS For Single Loop Operation, LHGRFACf and LHGRFACp shall not exceed 0.8.

The Single Loop Operation limits take effect when reset for single loop operation per LCO 3.4.1,"Recirculation Loops Operating. This is consistent with note (b) to Table 3.3.1.1-1 of the Technical Specifications.

The 3DMONICORE computer software will automatically shift between 2 LOOPS ON and 1 LOOP ON modes of operation on transfer to Single Loop Operation.

The change in LHGRFACf and LHGRFACp will occur automatically. Guidance in FTI-B0012 can be used to verify proper functioning of the 3DMONICORE System. If the 3DMONICORE System is not functioning properly, FTI-B0012 will implement administrative limits until 3DMONICORE is properly calculating LHGR Limits.

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 21 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 22 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 23 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 24 of 26

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 25 of 26 6.0 T.S. 3.3.1.1 - REACTOR PROTECTION SYSTEM INSTRUMENTATION The simulated thermal power time constant shall be 6 +/-0.6 seconds (Obligation 13).

7.0 T.S. 3.3.1.3 - OSCILLATION POWER RANGE MONITOR (OPRM)

INSTRUMENTATION OPRM setpoints for operable OPRMs:

1. Confirmation Count Setpoint (Np = N2): 16
2. Amplitude Setpoint (Sp): 1.15 (Obligation 3) 8.0 SCOPE OF REVISION Rev. 35 - Updated to incorporate Operating Limits for Cycle 20:
1. Revised Figure 3.2.2-2, Power Dependent MCPR Limit (MCPRp) Equipment in Service
2. Revised Figure 3.2.2-3, Power Dependent MCPR Limit (MCPRp) Pressure Regulator Out of Service
3. Revised Figure 3.2.2-4, Power Dependent MCPR Limit (MCPRp) Power Load Unbalance Out of Service
4. Revised Figure 3.2.3-2, Power Dependent LHGR Factor (LHGRFACp)

Equipment in Service

5. Revised Figure 3.2.3-3, Power Dependent LHGR Factor (LHGRFACp)

Pressure Regulator Out of Service

6. Revised Figure 3.2.3-4, Power Dependent LHGR Factor (LHGRFACp)

Power Load Unbalance Out of Service

7. Updated Obligations 1, 3, 4, 14, 17, and 20 for Cycle 20.
8. Deleted Obligations 23, 24, and 25 as they were only applicable to Cycle 19 operation.
9. Updated the Operating Limit MCPR Delta Energy from 3068 MWD/sT to 2916 MWD/sT.
10. Updated Operating Limit MCPR for MOC-EOC from 1.44 to 1.43.

PERRY NUCLEAR POWER PLANT Procedure Number:

PDB-F0001

Title:

Use Category:

Core Operating Limits Report for the Perry Nuclear In-Field Reference Power Plant Unit 1 Cycle 20 (Reload 19) Revision: Page:

35 26 of 26

11. Updated to remove the allowance of operation with reduced feedwater temperatures while in single loop operation (SLO) as this prior allowance was specific to Cycle 19 operation and requires cycle specific confirmation.

There are no other changes in Revision 35 compared to Revision 34 other than changes in references for Cycle 19 to Cycle 20.

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