ML18272A006

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Core Operating Limits Report, Cycle 31, Revision 0
ML18272A006
Person / Time
Site: Prairie Island Xcel Energy icon.png
Issue date: 09/28/2018
From: Sharp S
Northern States Power Co, Xcel Energy
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
L-Pl-18-056
Download: ML18272A006 (27)
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Text

1717 Wakonade Drive Welch, MN 55089

~ Xcel Energy*

RESPONSIBLE BY NATURE 800. 895 .4999 xcelenergy.com September 28, 2018 L-Pl-18-056 TS 5.6.5.d ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Prairie Island Nuclear Generating Plant, Unit 1 Docket No. 50-282 Renewed Facility Operating License No. DPR-42 Core Operating Limits Report for the Prairie Island Nuclear Generating Plant Unit 1. Cycle 31, Revision 0 Pursuant to the requirements of Technical Specification 5.6.5.d, Northern States Power Company, a Minnesota corporation (NSPM), doing business as Xcel Energy, hereby submits the Core Operating Limits Report (COLR) for the Prairie Island Nuclear Generating Plant (PINGP) Unit 1, Cycle 31, Revision 0. The COLR provides the cycle-specific values of the limits established using NRC approved methodologies such that the applicable limits of the plant safety analysis are met.

The COLR for PINGP Unit 1, Cycle 31, Revision 0, is enclosed.

Summary of Commitments This letter makes no new commitments and no revisions to existing commitments.

~~~a?

cott Sharp Site Vice President, Prairie Island Nuclear Generating Plant Northern States Power Company - Minnesota Enclosure cc
Administrator, Region Ill, USNRC Project Manager, Prairie Island, USNRC Resident Inspector, Prairie Island, USNRC

ENCLOSURE PRAIRIE ISLAND NUCLEAR GENERATING PLANT CORE OPERATING LIMITS REPORT UNIT 1 - CYCLE 31 REVISION 0 25 pages follow

Core Operating Limits Report Unit 1, Cycle 31 Revision O PRAIRIE ISLAND NUCLEAR GENERATING PLANT CORE OPERATING LIMITS REPORT UNIT 1 - CYCLE 31 REVISIONO Reviewed~)~ Date: 't( r;/1?

Amanda Jepson Manager, Strategic Engineering Date: q / 0 / 2olY Darius Ahrar Supervisor, Nuclear Analysis & Design Approved By: :?t_~;i;,.,,,o Date: q(,/ I/, 8 Nate Bibus Director, Fleet Engineering Note: This report is not part of the Technical Specifications This report is referenced in the Technical Specifications Page 1 of25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 PRAIRIE ISLAND NUCLEAR GENERATING PLANT CORE OPERATING LIMITS REPORT UNIT 1 - CYCLE 31 REVISION 0 This report provides the values of the limits for Unit 1 Cycle 31 as required by Technical Specification 5.6.5. These values have been established using NRC approved methodology and are established such that all applicable limits of the plant safety analysis are met. The Technical Specifications affected by this report are listed below:

1. 2.1.1 Reactor Core Safety Limits
2. 3.1.1 Shutdown Margin Requirements
3. 3.1.3 Isothermal Temperature Coefficient (ITC)
4. 3.1.5 Shutdown Bank Insertion Limits
5. 3.1.6 Control Bank Insertion Limits
6. 3.1.8 Physics Tests Exceptions - MODE 2
7. 3.2.1 Heat Flux Hot Channel Factor (FQ(z))
8. 3.2.2 Nuclear Enthalpy Rise Hot Channel Factor F ( )
9. 3.2.3 Axial Flux Difference (AFD)
10. 3.3.1 Reactor Trip System (RTS) Instrumentation Overtemperature T and Overpower T Parameter Values for Technical Specification Table 3.3.1-1 (Note 1 and Note 2)
11. 3.4.1 RCS Pressure, Temperature, and Flow - Departure from Nucleate Boiling (DNB) Limits
12. 3.9.1 Refueling Boron Concentration
1. 2.1.1 Reactor Core Safety Limits Reactor Core Safety Limits are shown in Figure 1.

Reference Technical Specification 2.1.1.

2. 3.1.1 Shutdown Margin Requirements Minimum Shutdown Margin requirements are shown in Table 1.

Reference Technical Specification 3.1.1.

Page 2 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0

3. 3.1.3 Isothermal Temperature Coefficient (ITC)

ITC Upper limit:

a. < 5 pcm/°F for power levels < 70% RTP; and
b. a line which slopes linearly from
i. 0 pcm/oF at a power level = 70% RTP to ii. -1.5 pcm/oF at a power level = 100% RTP ITC Lower limit:
a. -43.15 pcm/°F Reference Technical Specification 3.1.3.
4. 3.1.5 Shutdown Bank Insertion Limits The shutdown rods shall be fully withdrawn.

Reference Technical Specification 3.1.5.

5. 3.1.6 Control Bank Insertion Limits The control rod banks shall be limited in physical insertion as shown in Figures 2, 3, and 4.

The control rod banks withdrawal sequence shall be Bank A, Bank B, Bank C, and finally Bank D.

The control rod banks shall be withdrawn maintaining 128 step tip-to-tip distance.

Reference Technical Specification 3.1.6.

6. 3.1.8 Physics Tests Exceptions - MODE 2 Minimum Shutdown Margin requirements during physics testing are shown in Table 1.

Reference Technical Specification 3.1.8.

Page 3 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0

7. 3.2.1 Heat Flux Hot Channel Factor (FQ(Z))

The Heat Flux Hot Channel Factor shall be within the following limits:

CFQ = 2.50 K(Z) is a constant value = 1.0 at all elevations.

The HFP W(Z) values are provided in Table 2 and Table 4.

The W(Z) values in Table 2 and Table 4 are applicable to Figure 5.

The data in Tables 2 and 4 should be used independently; cross interpolation or extrapolation between W(Z) sets is prohibited.

The Part Power W(Z) values for 75% P < 85% and Part Power W(Z) values for 85 P < 95% are provided in Table 6.

The W(Z) values in Table 6 are applicable to Figure 5.

The FWQ(Z) Penalty Factors associated with Figure 5 and Table 2 are provided in Table 3.

The FWQ(Z) Penalty Factors associated with Figure 5 and Table 4 are provided in Table 5.

The W(Z) values in Table 4 are based on a steady-state model with perturbed Axial Flux Difference (AFD) that simulates a Delta-Axial-Offset (D-AO) of -4%

for the entire cycle. D-AO is defined as the measured Axial Offset (AO) less the predicted AO from Table 2. The ranges of applicability for the Table 2 and 4 W(z) values are defined below:

1. Table 2 values should be used when D-AO is in the range of +/-3%

of the Table 2 supplied AO.

2. Table 4 values should be used when D-AO is more negative than

-3% and more positive than -7% of the Table 2 supplied AO.

Page 4 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 The HFP W(Z) values are generated assuming that they will be used for full power surveillance. Part power W(Z) values are only required to be used when the part power surveillance is performed using the moveable incore detector system.

When a part power surveillance is performed from BOC through 150 MWd/MTU and at a power level specified for Table 6, the W(Z) values provided in Table 6 should be used. When a part power surveillance is performed after 150 MWD/MTU, or at a power level other than those specified for Table 6, the HFP W(Z) values in Table 2 or Table 4 should be used.

W(Z) values should be multiplied by the factor 1/P, when P > 0.5. When P is 0.5, the W(Z) values should be multiplied by the factor 1/(0.5), or 2.0. This is consistent with the adjustment in the FQ(Z) limit at part power conditions.

Reference Technical Specification 3.2.1.

8. 3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (FHN)

The Nuclear Enthalpy Rise Hot Channel Factor shall be within the following limits:

FH 1.77 x [1 + 0.3(1- P)]

where: P is the fraction of RATED THERMAL POWER at which the core is operating.

Reference Technical Specification 3.2.2.

9. 3.2.3 Axial Flux Difference (AFD)

The indicated axial flux difference shall be maintained within the allowed operational space defined by Figure 5.

Reference Technical Specification 3.2.3.

Page 5 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0

10. 3.3.1 Reactor Trip System (RTS) Instrumentation Overtemperature T and Overpower T Parameter Values for Technical Specification Table 3.3.1-1 (Note 1 and Note 2):

Overtemperature T Setpoint Overtemperature T setpoint parameter values:

T0 = Indicated T at RATED THERMAL POWER, %

T = Average temperature, °F T = 560.0 °F P = Pressurizer Pressure, psig P = 2235 psig K1 1.17 K2 = 0.014 /°F K3 = 0.00100 /psi 1 = 30 seconds 2 = 4 seconds f(I) = A function of the indicated difference between top and bottom detectors of the power range nuclear ion chambers. Selected gains are based on measured instrument response during plant startup tests, where qt and qb are the percent power in the top and bottom halves of the core respectively, and qt + qb is total core power in percent of RATED THERMAL POWER, such that (a) For qt - qb within -13, +8 % f(I) = 0 (b) For each percent that the magnitude of qt - qb exceeds +8%

the T trip setpoint shall be automatically reduced by an equivalent of 1.73 % of RATED THERMAL POWER.

(c) For each percent that the magnitude of qt - qb exceeds -13 %

the T trip setpoint shall be automatically reduced by an equivalent of 3.846 % of RATED THERMAL POWER.

Overpower T Setpoint Overpower T setpoint parameter values:

T0 = Indicated T at RATED THERMAL POWER, %

T = Average temperature, °F T = 560.0 °F K4 1.11 K5 = 0.0275/°F for increasing T; 0 for decreasing T K6 = 0.002/°F for T > T ; 0 for T T 3 = 10 seconds Reference Technical Specification 3.3.1.

Page 6 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0

11. 3.4.1 RCS Pressure, Temperature, and Flow - Departure from Nucleate Boiling (DNB)

Limits The DNB Limits are:

Pressurizer pressure limit = 2190 psia RCS average temperature limit = 564°F RCS total flow rate limit = 178,000 gpm Reference Technical Specification 3.4.1.

12. 3.9.1 Refueling Boron Concentration.

The boron concentration of the reactor coolant system and the refueling cavity shall be sufficient to ensure that the more restrictive of the following conditions is met:

a) Keff 0.95 b) 2000 ppm c) The Shutdown Margin specified in Table 1 Reference Technical Specification 3.9.1.

Page 7 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 REFERENCES (NRC Approved Methodologies for COLR Parameters)

1. NSPNAD-8101-A, Qualification of Reactor Physics Methods for Application to Prairie Island, Revision 2, October 2000.
2. NSPNAD-8102-PA, Prairie Island Nuclear Power Plant Reload Safety Evaluation Methods for Application to PI Units, Revision 7, July 1999.
3. NSPNAD-97002-PA, Northern States Power Companys Steam Line Break Methodology, Revision 1, October 2000.
4. WCAP-9272-P-A, Westinghouse Reload Safety Evaluation Methodology, July, 1985.

5.a WCAP-10054-P-A, Westinghouse Small Break ECCS Evaluation Model using the NOTRUMP Code, August, 1985.

5.b WCAP-10054-P-A, Westinghouse Small Break ECCS Evaluation Model using the NOTRUMP Code, Addendum 2 Revision 1, July 1997.

6. WCAP-16045-P-A Addendum 1-A, Qualification of the NEXUS Nuclear Data Methodology, August 2007.
7. WCAP-10924-P-A, Volume 1, Revision 1, and Volume 2, Revision 2, Westinghouse Large Break LOCA Best Estimate Methodology, September 2005.
8. XN-NF-77-57-(A), XN-NF-77-57, Supplement 1 (A), Exxon Nuclear Power Distribution Control for Pressurized Water Reactors Phase II, May 1981.
9. WCAP-13677-P-A, 10 CFR 50.46 Evaluation Model Report: W-COBRA/TRAC 2-Loop Upper Plenum Injection Model Update to Support ZIRLO' Cladding Options, February 1994.
10. NSPNAD-93003-A, Prairie Island Units 1 and 2 Transient Power Distribution Methodology, Revision 0, April 1993.
11. NAD-PI-003, Prairie Island Nuclear Power Plant Required Shutdown Margin During Physics Tests, Revision 0, January 2001.
12. NAD-PI-004, Prairie Island Nuclear Power Plant FWQ(Z) Penalty With Increasing [FCQ(Z) / K(Z)

Trend, Revision 0, January 2001.

13. WCAP-10216-P-A, Revision 1A, Relaxation of Constant Axial Offset Control/ FQ Surveillance Technical Specification, February 1994.

ZIRLO' is a registered trademark of Westinghouse Electric Company LLC, its Affiliates and/or its Subsidiaries in the United States of America and may be registered in other countries throughout the world. All rights reserved. Unauthorized use is strictly prohibited.

Page 8 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0

14. WCAP-8745-P-A, Design Bases for the Thermal Overpower T and Thermal Overtemperature T Trip Functions, September 1986.
15. WCAP-11397-P-A, Revised Thermal Design Procedure, April 1989.
16. WCAP-14483-A, Generic Methodology for Expanded Core Operating Limits Report, January 1999.
17. WCAP-7588 Rev. 1-A, An Evaluation of the Rod Ejection Accident in Westinghouse Pressurized Water Reactors Using Spatial Kinetics Methods, January 1975.
18. WCAP-7908-A, FACTRAN - A FORTRAN IV Code for Thermal Transients in a UO2 Fuel Rod, December 1989.
19. WCAP-7907-P-A, LOFTRAN Code Description, April 1984.
20. WCAP-7979-P-A, TWINKLE - A Multidimensional Neutron Kinetics Computer Code, January 1975.
21. WCAP-10965-P-A, ANC: A Westinghouse Advanced Nodal Computer Code, September 1986.
22. WCAP-11394-P-A, Methodology for the Analysis of the Dropped Rod Event, January 1990.
23. WCAP-16045-P-A, Qualification of the Two-Dimensional Transport Code PARAGON, August 2004.
24. WCAP-12910 Rev. 1-A, Pressurizer Safety Valve Set Pressure Shift, May 1993.
25. WCAP-14565-P-A, VIPRE-01 Modeling and Qualification for Pressurized Water Reactor Non-LOCA Thermal-Hydraulic Safety Analysis, October 1999.
26. WCAP-14882-P-A, RETRAN-02 Modeling and Qualification for Westinghouse Pressurized Water Reactor Non-LOCA Safety Analyses, April 1999.
27. WCAP-16009-P-A, "Realistic Large-Break LOCA Evaluation Methodology Using the Automated Statistical Treatment Of Uncertainty Method (ASTRUM)," Revision 0, January 2005.
28. Caldon, Inc. Engineering Report-80P, Improving Thermal Power Accuracy and Plant Safety While Increasing Operating Power Level Using the LEFM ' System, Revision 0, March 1997.
29. Caldon, Inc. Engineering Report-157P, Supplement to Topical Report ER-80P: Basis for a Power Uprate With the LEFM ' Check or CheckPlus' System, Revision 5, October 2001.
30. WCAP-12610-P-A, VANTAGE+ Fuel Assembly Reference Core Report, April 1995.

Page 9 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0

31. WCAP-12610-P-A and CENPD-404-P-A, Addendum 1-A, Optimized ZIRLO', July 2006.
32. Design Equivalent Change 601000000338 Rev.0 1R31 Core Reload IFBA/GAD Optimized ZIRLO' is a trademark of Westinghouse Electric Company LLC, its Affiliates and/or its Subsidiaries in the United States of America and may be registered in other countries throughout the world. All rights reserved. Unauthorized use is strictly prohibited.

Page 10 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 1 Minimum Required Shutdown Margin, %

Number of Charging Pumps Running**

Mode 1*

0-1 Pump 2 Pumps 3 Pumps 0 - 24,500 MWd/MTU - - -

Mode 2*

0-1 Pump 2 Pumps 3 Pumps 0 - 24,500 MWd/MTU 1.7 1.7 1.7 Physics Testing in Mode 2 0-1 Pump 2 Pumps 3 Pumps 0 - 24,500 MWd/MTU 0.5 0.5 0.5 Mode 3 Tave 520°F (Most Reactive Rod Out) 0-1 Pump 2 Pumps 3 Pumps 0 - 24,500 MWd/MTU 2.0 2.0 2.0 Mode 3 350°F Tave < 520°F (Most Reactive Rod Out) 0-1 Pump 2 Pumps 3 Pumps 0 MWd/MTU 2.0 2.0 2.0 6000 MWd/MTU 2.0 2.0 2.0 13,000 MWd/MTU 2.0 2.0 2.0 24,500 MWd/MTU 2.0 2.0 2.0 Operational Mode Definitions, as per TS Table 1.1-1.

  • For Mode 1 and Mode 2 with Keff 1.0, the minimum shutdown margin requirements are provided by the Rod Insertion Limits.
    • Charging pump(s) in service only pertains to steady state operations. It does not include transitory operations. For example, operations such as starting a second charging pump in order to secure the operating pump would fall under the one pump in service column.

Note: Linear interpolation between burnup steps is allowed. Extrapolation is not allowed.

Page 11 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 1, Continued Minimum Required Shutdown Margin, %

Number of Charging Pumps Running**

Mode 4 200°F < Tave < 350°F (Most Reactive Rod Out) 0-1 Pump 2 Pumps 3 Pumps 0 MWd/MTU 2.0 3.5 5.5 6000 MWd/MTU 2.0 3.5 6.0 13,000 MWd/MTU 2.0 3.5 5.0 24,500 MWd/MTU 2.0 2.0 2.5 68°F Tave 200°F (Most Reactive Rod Out)

Mode 5 0-1 Pump 2 Pumps 3 Pumps 0 MWd/MTU*** 2.0 4.0 6.5 6000 MWd/MTU 2.0 4.0 6.5 13,000 MWd/MTU 2.0 4.0 6.0 24,500 MWd/MTU 2.0 2.0 3.0 Mode 6 68°F Tave < 200°F (ARI) 0-1 Pump 2 Pumps 3 Pumps 0 MWd/MTU*** 5.129 5.129 6.0 6000 MWd/MTU 5.129 5.129 6.5 13,000 MWd/MTU 5.129 5.129 5.5 24,500 MWd/MTU 5.129 5.129 5.129 Mode 6 68°F Tave < 200°F (ARO) 0-1 Pump 2 Pumps 3 Pumps 0 MWd/MTU*** 5.129 5.129 8.0 6000 MWd/MTU 5.129 5.5 8.0 13,000 MWd/MTU 5.129 5.129 7.5 24,500 MWd/MTU 5.129 5.129 5.129 Operational Mode Definitions, as per TS Table 1.1-1.

    • Charging pump(s) in service only pertains to steady state operations. It does not include transitory operations. For example, operations such as starting a second charging pump in order to secure the operating pump would fall under the one pump in service column.
      • These values are also applicable for the Unit 1 Cycle 30 end of cycle.

Note: Linear interpolation between burnup steps is allowed. Extrapolation is not allowed.

Page 12 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 2 - W(z) Values associated with Figure 5 (Top 10% and Bottom 8% excluded)*

Height BU [MWd/MTU]

[ft] 150 1000 3000 4000 5000 6000 7000 8000 9000 10000 AO = AO = AO = AO = AO = AO = AO = AO = AO = AO =

0.38% 0.73% 0.61% 0.29% -0.18% -0.65% -1.12% -1.57% -1.92% -2.19%

[BOTTOM]

1 0.00 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 2 0.20 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 3 0.40 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 4 0.60 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 5 0.80 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 6 1.00 1.2605 1.2590 1.2674 1.2696 1.2586 1.2355 1.2369 1.2221 1.2106 1.2022 7 1.20 1.2524 1.2509 1.2590 1.2611 1.2503 1.2276 1.2289 1.2146 1.2031 1.1951 8 1.40 1.2427 1.2412 1.2487 1.2508 1.2400 1.2178 1.2190 1.2052 1.1938 1.1860 9 1.60 1.2317 1.2303 1.2370 1.2390 1.2284 1.2066 1.2078 1.1945 1.1833 1.1759 10 1.80 1.2198 1.2185 1.2242 1.2262 1.2158 1.1946 1.1958 1.1832 1.1722 1.1653 11 2.00 1.2068 1.2059 1.2105 1.2124 1.2022 1.1817 1.1830 1.1711 1.1605 1.1541 12 2.20 1.1936 1.1931 1.1965 1.1983 1.1884 1.1686 1.1699 1.1589 1.1485 1.1427 13 2.40 1.1803 1.1803 1.1822 1.1840 1.1744 1.1551 1.1566 1.1462 1.1362 1.1308 14 2.60 1.1670 1.1680 1.1695 1.1701 1.1607 1.1417 1.1435 1.1344 1.1243 1.1192 15 2.80 1.1548 1.1551 1.1564 1.1556 1.1469 1.1296 1.1306 1.1226 1.1131 1.1087 16 3.00 1.1453 1.1451 1.1458 1.1443 1.1371 1.1217 1.1220 1.1143 1.1060 1.1023 17 3.20 1.1386 1.1415 1.1421 1.1390 1.1343 1.1187 1.1201 1.1129 1.1047 1.1012 18 3.40 1.1324 1.1379 1.1395 1.1328 1.1312 1.1154 1.1178 1.1111 1.1037 1.1004 19 3.60 1.1283 1.1338 1.1372 1.1258 1.1276 1.1135 1.1151 1.1096 1.1037 1.1007 20 3.80 1.1248 1.1294 1.1347 1.1216 1.1237 1.1123 1.1120 1.1087 1.1040 1.1013 21 4.00 1.1200 1.1242 1.1316 1.1196 1.1191 1.1102 1.1085 1.1076 1.1038 1.1015 22 4.20 1.1148 1.1189 1.1279 1.1164 1.1139 1.1078 1.1044 1.1062 1.1032 1.1013 23 4.40 1.1113 1.1155 1.1238 1.1129 1.1083 1.1051 1.0999 1.1044 1.1024 1.1009 24 4.60 1.1081 1.1119 1.1194 1.1091 1.1045 1.1019 1.0969 1.1021 1.1008 1.0996 25 4.80 1.1047 1.1084 1.1149 1.1053 1.1013 1.0985 1.0957 1.0996 1.0991 1.0981 26 5.00 1.1016 1.1034 1.1101 1.1003 1.0969 1.0949 1.0942 1.0963 1.0964 1.0958 27 5.20 1.1015 1.1008 1.1041 1.0975 1.0947 1.0933 1.0934 1.0945 1.0951 1.0948 28 5.40 1.1049 1.1037 1.0990 1.0982 1.0957 1.0941 1.0951 1.0950 1.0967 1.0969 29 5.60 1.1074 1.1057 1.1011 1.1001 1.0984 1.0965 1.0969 1.0973 1.0978 1.0985 30 5.80 1.1108 1.1098 1.1049 1.1039 1.1020 1.1003 1.1012 1.1011 1.1019 1.1014 31 6.00 1.1152 1.1152 1.1097 1.1089 1.1059 1.1045 1.1066 1.1052 1.1070 1.1060 32 6.20 1.1204 1.1195 1.1144 1.1136 1.1094 1.1083 1.1115 1.1088 1.1114 1.1111 33 6.40 1.1263 1.1235 1.1183 1.1177 1.1124 1.1116 1.1159 1.1120 1.1154 1.1161 34 6.61 1.1323 1.1289 1.1220 1.1215 1.1153 1.1150 1.1204 1.1154 1.1197 1.1227 35 6.81 1.1372 1.1336 1.1266 1.1245 1.1189 1.1189 1.1254 1.1192 1.1242 1.1277 36 7.01 1.1416 1.1376 1.1309 1.1284 1.1221 1.1224 1.1298 1.1225 1.1282 1.1319 37 7.21 1.1453 1.1410 1.1344 1.1323 1.1245 1.1252 1.1339 1.1248 1.1314 1.1361 38 7.41 1.1484 1.1438 1.1375 1.1356 1.1275 1.1286 1.1375 1.1291 1.1361 1.1423 39 7.61 1.1508 1.1460 1.1401 1.1384 1.1319 1.1336 1.1406 1.1371 1.1435 1.1504 40 7.81 1.1519 1.1470 1.1416 1.1401 1.1360 1.1382 1.1426 1.1448 1.1500 1.1571 41 8.01 1.1519 1.1469 1.1420 1.1408 1.1394 1.1418 1.1436 1.1518 1.1555 1.1628 42 8.21 1.1502 1.1450 1.1408 1.1400 1.1423 1.1458 1.1474 1.1579 1.1600 1.1674 43 8.41 1.1478 1.1426 1.1391 1.1390 1.1452 1.1499 1.1528 1.1630 1.1633 1.1707 44 8.61 1.1466 1.1416 1.1389 1.1390 1.1482 1.1526 1.1564 1.1670 1.1651 1.1725 45 8.81 1.1465 1.1419 1.1403 1.1404 1.1503 1.1546 1.1594 1.1703 1.1658 1.1732 46 9.01 1.1483 1.1429 1.1437 1.1439 1.1532 1.1584 1.1660 1.1732 1.1691 1.1761 47 9.21 1.1535 1.1474 1.1529 1.1532 1.1617 1.1682 1.1711 1.1743 1.1777 1.1849 48 9.41 1.1578 1.1509 1.1625 1.1630 1.1707 1.1783 1.1801 1.1785 1.1868 1.1940 49 9.61 1.1623 1.1550 1.1738 1.1742 1.1810 1.1899 1.1913 1.1875 1.1975 1.2044 50 9.81 1.1678 1.1620 1.1890 1.1893 1.1950 1.2051 1.2024 1.1990 1.2114 1.2181 51 10.01 1.1704 1.1684 1.2028 1.2030 1.2074 1.2189 1.2182 1.2113 1.2234 1.2297 52 10.21 1.1752 1.1779 1.2170 1.2154 1.2204 1.2334 1.2319 1.2245 1.2362 1.2421 53 10.41 1.1797 1.1900 1.2266 1.2217 1.2298 1.2436 1.2450 1.2326 1.2450 1.2507 54 10.61 1.1875 1.2062 1.2359 1.2311 1.2387 1.2526 1.2581 1.2432 1.2533 1.2586 55 10.81 1.1983 1.2161 1.2411 1.2393 1.2428 1.2562 1.2618 1.2573 1.2569 1.2622 56 11.01 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 57 11.21 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 58 11.41 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 59 11.61 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 60 11.81 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

[TOP] 61 12.01 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

  • Linear extrapolation based on a line between 20,000 MWD/MTU and 22,000 MWD/MTU is adequate for addressing burnups beyond 22,000 MWD/MTU.

Page 13 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 2 (cont.) - W(z) Values associated with Figure 5 (Top 10% and Bottom 8% excluded)*

Height BU [MWd/MTU]

[ft] 11000 12000 13000 14000 15000 16000 18000 19000 20000 22000 AO = AO = AO = AO = AO = AO = AO = AO = AO = AO =

-2.24% -2.01% -1.71% -1.30% -1.09% -0.96% -1.14% -1.27% -1.33% -1.54%

[BOTTOM]

0.00 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1

2 0.20 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 3 0.40 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 4 0.60 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 5 0.80 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 6 1.00 1.2205 1.1985 1.2054 1.2143 1.2013 1.2035 1.1983 1.1905 1.2011 1.2133 7 1.20 1.2127 1.1914 1.1984 1.2073 1.1947 1.1970 1.1917 1.1839 1.1941 1.2055 8 1.40 1.2030 1.1824 1.1895 1.1984 1.1862 1.1887 1.1835 1.1757 1.1856 1.1961 9 1.60 1.1920 1.1723 1.1796 1.1885 1.1769 1.1796 1.1746 1.1669 1.1765 1.1861 10 1.80 1.1805 1.1618 1.1694 1.1783 1.1674 1.1705 1.1659 1.1583 1.1678 1.1765 11 2.00 1.1683 1.1508 1.1588 1.1677 1.1575 1.1612 1.1571 1.1498 1.1592 1.1670 12 2.20 1.1558 1.1395 1.1479 1.1567 1.1473 1.1516 1.1479 1.1409 1.1503 1.1571 13 2.40 1.1429 1.1277 1.1363 1.1449 1.1363 1.1412 1.1376 1.1308 1.1401 1.1458 14 2.60 1.1296 1.1154 1.1247 1.1327 1.1247 1.1317 1.1268 1.1202 1.1298 1.1337 15 2.80 1.1186 1.1059 1.1143 1.1225 1.1152 1.1220 1.1174 1.1111 1.1195 1.1230 16 3.00 1.1123 1.1009 1.1082 1.1162 1.1095 1.1157 1.1121 1.1071 1.1141 1.1139 17 3.20 1.1093 1.0988 1.1073 1.1133 1.1074 1.1157 1.1121 1.1074 1.1140 1.1080 18 3.40 1.1058 1.0963 1.1066 1.1115 1.1076 1.1147 1.1138 1.1099 1.1136 1.1107 19 3.60 1.1013 1.0961 1.1069 1.1107 1.1078 1.1146 1.1153 1.1122 1.1128 1.1136 20 3.80 1.0996 1.0961 1.1075 1.1099 1.1077 1.1151 1.1164 1.1142 1.1110 1.1171 21 4.00 1.0999 1.0962 1.1076 1.1088 1.1074 1.1152 1.1172 1.1158 1.1104 1.1217 22 4.20 1.1004 1.0975 1.1075 1.1075 1.1069 1.1150 1.1177 1.1171 1.1133 1.1256 23 4.40 1.1006 1.0990 1.1069 1.1061 1.1063 1.1143 1.1175 1.1178 1.1153 1.1287 24 4.60 1.0999 1.0995 1.1054 1.1051 1.1061 1.1139 1.1159 1.1168 1.1156 1.1298 25 4.80 1.0988 1.0995 1.1034 1.1038 1.1051 1.1145 1.1134 1.1149 1.1148 1.1298 26 5.00 1.0972 1.0991 1.1010 1.1021 1.1056 1.1152 1.1115 1.1135 1.1146 1.1292 27 5.20 1.0963 1.0985 1.0997 1.1014 1.1075 1.1152 1.1098 1.1124 1.1147 1.1284 28 5.40 1.0967 1.0980 1.0998 1.1018 1.1085 1.1149 1.1085 1.1115 1.1148 1.1269 29 5.60 1.0988 1.0992 1.1017 1.1025 1.1089 1.1150 1.1126 1.1134 1.1153 1.1244 30 5.80 1.1026 1.1033 1.1045 1.1059 1.1115 1.1159 1.1201 1.1188 1.1202 1.1260 31 6.00 1.1065 1.1085 1.1105 1.1116 1.1173 1.1215 1.1279 1.1243 1.1289 1.1341 32 6.20 1.1098 1.1136 1.1186 1.1178 1.1243 1.1299 1.1348 1.1312 1.1391 1.1452 33 6.40 1.1136 1.1202 1.1257 1.1233 1.1304 1.1371 1.1414 1.1421 1.1509 1.1554 34 6.61 1.1185 1.1262 1.1324 1.1283 1.1368 1.1439 1.1472 1.1519 1.1618 1.1649 35 6.81 1.1219 1.1305 1.1373 1.1354 1.1458 1.1485 1.1517 1.1591 1.1701 1.1716 36 7.01 1.1308 1.1347 1.1412 1.1432 1.1542 1.1517 1.1570 1.1651 1.1769 1.1769 37 7.21 1.1413 1.1415 1.1450 1.1503 1.1616 1.1563 1.1629 1.1713 1.1830 1.1823 38 7.41 1.1501 1.1495 1.1492 1.1565 1.1681 1.1617 1.1685 1.1772 1.1878 1.1873 39 7.61 1.1583 1.1561 1.1540 1.1616 1.1734 1.1656 1.1727 1.1817 1.1913 1.1908 40 7.81 1.1655 1.1616 1.1594 1.1655 1.1773 1.1682 1.1756 1.1848 1.1930 1.1927 41 8.01 1.1715 1.1660 1.1638 1.1680 1.1797 1.1692 1.1770 1.1863 1.1930 1.1929 42 8.21 1.1763 1.1691 1.1669 1.1691 1.1806 1.1689 1.1771 1.1863 1.1912 1.1914 43 8.41 1.1797 1.1708 1.1688 1.1686 1.1797 1.1666 1.1750 1.1846 1.1873 1.1883 44 8.61 1.1817 1.1708 1.1692 1.1664 1.1773 1.1631 1.1725 1.1815 1.1828 1.1846 45 8.81 1.1825 1.1696 1.1689 1.1638 1.1732 1.1610 1.1734 1.1767 1.1797 1.1803 46 9.01 1.1821 1.1715 1.1724 1.1637 1.1657 1.1599 1.1720 1.1684 1.1726 1.1722 47 9.21 1.1861 1.1784 1.1745 1.1675 1.1643 1.1629 1.1683 1.1661 1.1677 1.1674 48 9.41 1.1911 1.1856 1.1792 1.1709 1.1661 1.1670 1.1669 1.1662 1.1650 1.1669 49 9.61 1.1968 1.1943 1.1856 1.1750 1.1692 1.1692 1.1672 1.1667 1.1629 1.1685 50 9.81 1.2073 1.2063 1.1919 1.1812 1.1720 1.1711 1.1702 1.1671 1.1619 1.1728 51 10.01 1.2213 1.2166 1.2019 1.1863 1.1774 1.1751 1.1751 1.1733 1.1629 1.1763 52 10.21 1.2327 1.2281 1.2096 1.1947 1.1798 1.1826 1.1796 1.1807 1.1649 1.1793 53 10.41 1.2438 1.2361 1.2175 1.2033 1.1827 1.1904 1.1860 1.1877 1.1672 1.1819 54 10.61 1.2551 1.2429 1.2278 1.2120 1.1885 1.1983 1.1948 1.1956 1.1720 1.1874 55 10.81 1.2585 1.2483 1.2320 1.2184 1.1932 1.2045 1.2014 1.2019 1.1792 1.1942 56 11.01 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 57 11.21 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 58 11.41 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 59 11.61 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 60 11.81 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

[TOP] 61 12.01 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

  • Linear extrapolation based on a line between 20,000 MWD/MTU and 22,000 MWD/MTU is adequate for addressing burnups beyond 22,000 MWD/MTU.

Page 14 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 3 FWQ(Z) Penalty Factor associated with Figure 5 and Table 2**

Cycle Burnup (MWD/MTU) FQ(z) Penalty Factor 0 1.0200 9711 1.0200 9848 1.0212 9985 1.0233 10121 1.0227 10258 1.0213 10394 1.0200 24500 1.0200

    • Linear interpolation is adequate for intermediate cycle burnups.

Page 15 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 4 -Negative Delta AO W(z) Values associated with Figure 5 (Top 10% and Bottom 8% excluded)*

Height BU [MWd/MTU]

[ft] 150 1000 3000 4000 5000 6000 7000 8000 9000 10000 AO = AO = AO = AO = AO = AO = AO = AO = AO = AO =

-3.62% -3.27% -3.39% -3.71% -4.18% -4.65% -5.12% -5.57% -5.92% -6.19%

[BOTTOM] 1 0.00 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 2 0.20 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 3 0.40 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 4 0.60 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 5 0.80 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 6 1.00 1.1785 1.1916 1.1856 1.1836 1.1783 1.1635 1.1693 1.1486 1.1335 1.1242 7 1.20 1.1719 1.1844 1.1786 1.1765 1.1714 1.1567 1.1624 1.1423 1.1273 1.1183 8 1.40 1.1639 1.1757 1.1700 1.1677 1.1628 1.1483 1.1537 1.1342 1.1194 1.1108 9 1.60 1.1549 1.1659 1.1603 1.1578 1.1531 1.1389 1.1439 1.1253 1.1106 1.1024 10 1.80 1.1454 1.1555 1.1500 1.1473 1.1429 1.1289 1.1336 1.1160 1.1015 1.0938 11 2.00 1.1353 1.1443 1.1391 1.1362 1.1320 1.1184 1.1228 1.1063 1.0921 1.0850 12 2.20 1.1250 1.1330 1.1281 1.1249 1.1211 1.1077 1.1118 1.0966 1.0826 1.0761 13 2.40 1.1149 1.1218 1.1170 1.1136 1.1100 1.0969 1.1006 1.0866 1.0728 1.0669 14 2.60 1.1047 1.1106 1.1062 1.1028 1.0994 1.0862 1.0895 1.0768 1.0629 1.0574 15 2.80 1.0960 1.1006 1.0963 1.0924 1.0886 1.0769 1.0799 1.0681 1.0554 1.0505 16 3.00 1.0908 1.0945 1.0903 1.0859 1.0826 1.0725 1.0747 1.0639 1.0528 1.0480 17 3.20 1.0891 1.0932 1.0898 1.0856 1.0824 1.0721 1.0742 1.0642 1.0532 1.0484 18 3.40 1.0876 1.0927 1.0910 1.0867 1.0825 1.0722 1.0731 1.0677 1.0559 1.0519 19 3.60 1.0870 1.0938 1.0925 1.0884 1.0823 1.0739 1.0724 1.0717 1.0600 1.0565 20 3.80 1.0862 1.0958 1.0939 1.0901 1.0821 1.0764 1.0737 1.0756 1.0643 1.0611 21 4.00 1.0859 1.0969 1.0948 1.0913 1.0810 1.0780 1.0778 1.0791 1.0683 1.0655 22 4.20 1.0883 1.0975 1.0952 1.0922 1.0802 1.0797 1.0810 1.0823 1.0720 1.0697 23 4.40 1.0912 1.0979 1.0955 1.0928 1.0835 1.0829 1.0841 1.0853 1.0757 1.0738 24 4.60 1.0936 1.0980 1.0952 1.0929 1.0863 1.0854 1.0864 1.0874 1.0798 1.0784 25 4.80 1.0958 1.0978 1.0949 1.0929 1.0886 1.0875 1.0883 1.0891 1.0837 1.0827 26 5.00 1.0975 1.0974 1.0937 1.0920 1.0907 1.0891 1.0897 1.0906 1.0872 1.0866 27 5.20 1.0996 1.0979 1.0937 1.0922 1.0921 1.0909 1.0914 1.0916 1.0903 1.0902 28 5.40 1.1025 1.1009 1.0964 1.0952 1.0934 1.0939 1.0944 1.0926 1.0932 1.0934 29 5.60 1.1054 1.1034 1.0985 1.0976 1.0960 1.0967 1.0971 1.0952 1.0959 1.0967 30 5.80 1.1105 1.1085 1.1033 1.1027 1.1016 1.1006 1.1010 1.1008 1.0995 1.1011 31 6.00 1.1162 1.1143 1.1090 1.1088 1.1080 1.1060 1.1064 1.1072 1.1050 1.1055 32 6.20 1.1207 1.1188 1.1137 1.1139 1.1135 1.1117 1.1120 1.1126 1.1120 1.1096 33 6.40 1.1250 1.1233 1.1179 1.1186 1.1186 1.1168 1.1172 1.1177 1.1195 1.1142 34 6.61 1.1309 1.1293 1.1223 1.1235 1.1240 1.1224 1.1228 1.1235 1.1267 1.1199 35 6.81 1.1359 1.1343 1.1272 1.1288 1.1297 1.1282 1.1286 1.1293 1.1325 1.1307 36 7.01 1.1403 1.1386 1.1318 1.1337 1.1349 1.1335 1.1336 1.1340 1.1368 1.1415 37 7.21 1.1438 1.1424 1.1355 1.1379 1.1396 1.1379 1.1392 1.1407 1.1447 1.1521 38 7.41 1.1486 1.1466 1.1401 1.1426 1.1447 1.1441 1.1472 1.1501 1.1555 1.1628 39 7.61 1.1566 1.1528 1.1472 1.1493 1.1519 1.1536 1.1575 1.1600 1.1650 1.1728 40 7.81 1.1644 1.1610 1.1558 1.1581 1.1611 1.1631 1.1666 1.1690 1.1737 1.1819 41 8.01 1.1715 1.1687 1.1638 1.1667 1.1701 1.1718 1.1749 1.1771 1.1815 1.1899 42 8.21 1.1775 1.1753 1.1708 1.1743 1.1782 1.1797 1.1823 1.1842 1.1882 1.1968 43 8.41 1.1822 1.1807 1.1768 1.1810 1.1853 1.1864 1.1884 1.1901 1.1935 1.2022 44 8.61 1.1852 1.1846 1.1813 1.1862 1.1911 1.1932 1.1944 1.1958 1.1985 1.2071 45 8.81 1.1874 1.1878 1.1852 1.1908 1.1962 1.2028 1.2035 1.2044 1.2064 1.2154 46 9.01 1.1928 1.1941 1.1929 1.1988 1.2041 1.2106 1.2162 1.2163 1.2176 1.2266 47 9.21 1.1966 1.1992 1.1990 1.2053 1.2107 1.2178 1.2287 1.2279 1.2297 1.2376 48 9.41 1.2035 1.2056 1.2091 1.2157 1.2214 1.2241 1.2403 1.2393 1.2432 1.2473 49 9.61 1.2141 1.2131 1.2215 1.2284 1.2341 1.2319 1.2499 1.2513 1.2572 1.2558 50 9.81 1.2248 1.2207 1.2337 1.2410 1.2466 1.2448 1.2593 1.2634 1.2701 1.2647 51 10.01 1.2346 1.2320 1.2511 1.2585 1.2641 1.2617 1.2743 1.2745 1.2822 1.2762 52 10.21 1.2431 1.2449 1.2663 1.2725 1.2792 1.2764 1.2896 1.2847 1.2935 1.2894 53 10.41 1.2523 1.2570 1.2802 1.2835 1.2935 1.2903 1.3026 1.2956 1.3015 1.3017 54 10.61 1.2634 1.2730 1.2947 1.2975 1.3071 1.3036 1.3175 1.3102 1.3132 1.3140 55 10.81 1.2717 1.2834 1.2995 1.3057 1.3106 1.3069 1.3310 1.3231 1.3278 1.3236 56 11.01 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 57 11.21 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 58 11.41 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 59 11.61 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 60 11.81 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

[TOP] 61 12.01 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

  • Linear extrapolation based on a line between 20,000 MWD/MTU and 22,000 MWD/MTU is adequate for addressing burnups beyond 22,000 MWD/MTU.

Page 16 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 4 (cont.) -Negative Delta AO W(z) Values associated with Figure 5 (Top 10% and Bottom 8% excluded)*

Height BU [MWd/MTU]

[ft] 11000 12000 13000 14000 15000 16000 18000 19000 20000 22000 AO = AO = AO = AO = AO = AO = AO = AO = AO = AO =

-6.24% -6.01% -5.71% -5.30% -5.09% -4.96% -5.14% -5.27% -5.33% -5.54%

[BOTTOM] 1 0.00 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 2 0.20 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 3 0.40 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 4 0.60 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 5 0.80 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 6 1.00 1.1284 1.1424 1.1299 1.1300 1.1336 1.1392 1.1124 1.1251 1.1127 1.1302 7 1.20 1.1227 1.1363 1.1247 1.1248 1.1287 1.1339 1.1079 1.1205 1.1083 1.1250 8 1.40 1.1155 1.1285 1.1180 1.1180 1.1222 1.1271 1.1021 1.1146 1.1027 1.1185 9 1.60 1.1076 1.1198 1.1107 1.1106 1.1153 1.1198 1.0960 1.1085 1.0970 1.1119 10 1.80 1.0995 1.1110 1.1033 1.1033 1.1085 1.1127 1.0904 1.1031 1.0921 1.1061 11 2.00 1.0912 1.1019 1.0959 1.0958 1.1019 1.1056 1.0851 1.0980 1.0877 1.1009 12 2.20 1.0829 1.0926 1.0884 1.0882 1.0950 1.0983 1.0797 1.0929 1.0833 1.0955 13 2.40 1.0742 1.0829 1.0803 1.0799 1.0874 1.0900 1.0732 1.0866 1.0777 1.0887 14 2.60 1.0655 1.0729 1.0722 1.0714 1.0798 1.0818 1.0664 1.0801 1.0719 1.0815 15 2.80 1.0581 1.0649 1.0646 1.0642 1.0721 1.0734 1.0607 1.0740 1.0663 1.0750 16 3.00 1.0550 1.0609 1.0611 1.0608 1.0683 1.0692 1.0582 1.0684 1.0622 1.0679 17 3.20 1.0560 1.0609 1.0619 1.0608 1.0690 1.0696 1.0585 1.0631 1.0622 1.0620 18 3.40 1.0604 1.0629 1.0630 1.0647 1.0697 1.0700 1.0635 1.0607 1.0652 1.0660 19 3.60 1.0655 1.0664 1.0639 1.0688 1.0699 1.0705 1.0688 1.0643 1.0685 1.0717 20 3.80 1.0703 1.0701 1.0647 1.0728 1.0709 1.0742 1.0738 1.0715 1.0709 1.0789 21 4.00 1.0750 1.0734 1.0670 1.0766 1.0741 1.0802 1.0789 1.0776 1.0751 1.0871 22 4.20 1.0795 1.0768 1.0722 1.0804 1.0791 1.0857 1.0840 1.0841 1.0829 1.0952 23 4.40 1.0837 1.0818 1.0768 1.0842 1.0835 1.0908 1.0887 1.0901 1.0900 1.1027 24 4.60 1.0868 1.0858 1.0802 1.0882 1.0867 1.0945 1.0918 1.0944 1.0951 1.1082 25 4.80 1.0894 1.0891 1.0844 1.0919 1.0906 1.0975 1.0956 1.0977 1.0992 1.1124 26 5.00 1.0917 1.0922 1.0888 1.0951 1.0947 1.1002 1.0998 1.1014 1.1037 1.1164 27 5.20 1.0936 1.0949 1.0927 1.0980 1.0982 1.1025 1.1032 1.1059 1.1089 1.1197 28 5.40 1.0953 1.0973 1.0964 1.1005 1.1015 1.1044 1.1066 1.1098 1.1136 1.1228 29 5.60 1.0974 1.1000 1.1001 1.1033 1.1051 1.1068 1.1117 1.1126 1.1187 1.1291 30 5.80 1.1021 1.1031 1.1050 1.1076 1.1097 1.1127 1.1189 1.1225 1.1311 1.1429 31 6.00 1.1074 1.1085 1.1093 1.1142 1.1167 1.1230 1.1292 1.1355 1.1456 1.1584 32 6.20 1.1119 1.1155 1.1167 1.1232 1.1277 1.1369 1.1412 1.1477 1.1584 1.1723 33 6.40 1.1173 1.1231 1.1318 1.1342 1.1417 1.1521 1.1523 1.1597 1.1711 1.1860 34 6.61 1.1258 1.1344 1.1480 1.1467 1.1550 1.1666 1.1629 1.1710 1.1829 1.1987 35 6.81 1.1375 1.1471 1.1620 1.1570 1.1659 1.1787 1.1709 1.1795 1.1917 1.2081 36 7.01 1.1488 1.1590 1.1750 1.1661 1.1756 1.1895 1.1777 1.1867 1.1991 1.2158 37 7.21 1.1600 1.1709 1.1874 1.1754 1.1855 1.1994 1.1845 1.1939 1.2064 1.2233 38 7.41 1.1714 1.1828 1.1987 1.1846 1.1951 1.2081 1.1909 1.2006 1.2131 1.2302 39 7.61 1.1819 1.1939 1.2087 1.1924 1.2035 1.2154 1.1958 1.2057 1.2181 1.2353 40 7.81 1.1914 1.2038 1.2174 1.1990 1.2104 1.2210 1.1992 1.2092 1.2214 1.2385 41 8.01 1.1997 1.2125 1.2245 1.2042 1.2159 1.2249 1.2011 1.2112 1.2231 1.2399 42 8.21 1.2069 1.2199 1.2300 1.2080 1.2199 1.2271 1.2012 1.2111 1.2223 1.2386 43 8.41 1.2127 1.2257 1.2334 1.2099 1.2217 1.2266 1.2006 1.2109 1.2220 1.2378 44 8.61 1.2169 1.2300 1.2351 1.2114 1.2226 1.2252 1.2013 1.2127 1.2254 1.2401 45 8.81 1.2201 1.2335 1.2363 1.2155 1.2261 1.2279 1.2095 1.2193 1.2290 1.2406 46 9.01 1.2254 1.2386 1.2363 1.2170 1.2287 1.2275 1.2146 1.2228 1.2286 1.2369 47 9.21 1.2292 1.2418 1.2404 1.2172 1.2291 1.2298 1.2182 1.2250 1.2254 1.2305 48 9.41 1.2368 1.2481 1.2440 1.2191 1.2317 1.2316 1.2206 1.2255 1.2241 1.2257 49 9.61 1.2487 1.2561 1.2483 1.2224 1.2350 1.2333 1.2227 1.2268 1.2233 1.2263 50 9.81 1.2608 1.2638 1.2551 1.2259 1.2376 1.2362 1.2260 1.2321 1.2210 1.2310 51 10.01 1.2724 1.2760 1.2596 1.2325 1.2446 1.2357 1.2301 1.2395 1.2212 1.2342 52 10.21 1.2835 1.2855 1.2659 1.2363 1.2512 1.2368 1.2371 1.2467 1.2238 1.2369 53 10.41 1.2935 1.2944 1.2696 1.2401 1.2549 1.2370 1.2442 1.2532 1.2253 1.2380 54 10.61 1.3037 1.3035 1.2747 1.2482 1.2618 1.2378 1.2516 1.2604 1.2294 1.2419 55 10.81 1.3106 1.3094 1.2828 1.2564 1.2712 1.2414 1.2574 1.2660 1.2357 1.2480 56 11.01 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 57 11.21 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 58 11.41 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 59 11.61 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 60 11.81 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

[TOP] 61 12.01 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

  • Linear extrapolation based on a line between 20,000 MWd/MTU and 22,000 MWd/MTU is adequate for addressing burnups beyond 22,000 MWd/MTU.

Page 17 of 26

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 5 Negative Delta AO FWQ(Z) Penalty Factor associated with Figure 5 and Table 4**

Cycle Burnup (MWD/MTU) FQ(z) Penalty Factor 0 1.0200 9985 1.0200 10121 1.0201 10258 1.0212 10394 1.0223 10531 1.0229 10668 1.0232 10804 1.0236 10941 1.0235 11077 1.0222 11214 1.0208 11351 1.0200 24500 1.0200

    • Linear interpolation is adequate for intermediate cycle burnups.

Page 18 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 6 - W(z) Values Associated with Figure 5 for Part Power Surveillances*

(Top 10% and Bottom 8% excluded)

Height Part Power W(z) Functions (% of Hot Full Power) 80 90 D-Bank @ 198 Steps D-Bank @ 206 Steps

[ft] HFP AO = 0.38% HFP AO = 0.38%

[BOTTOM]

1 0.00 1.0000 1.0000 2 0.20 1.0000 1.0000 3 0.40 1.0000 1.0000 4 0.60 1.0000 1.0000 5 0.80 1.0000 1.0000 6 1.00 1.2971 1.2828 7 1.20 1.2855 1.2719 8 1.40 1.2725 1.2613 9 1.60 1.2578 1.2487 10 1.80 1.2429 1.2348 11 2.00 1.2263 1.2200 12 2.20 1.2094 1.2043 13 2.40 1.1938 1.1908 14 2.60 1.1778 1.1757 15 2.80 1.1633 1.1626 16 3.00 1.1509 1.1509 17 3.20 1.1420 1.1434 18 3.40 1.1324 1.1351 19 3.60 1.1263 1.1303 20 3.80 1.1194 1.1248 21 4.00 1.1120 1.1187 22 4.20 1.1048 1.1128 23 4.40 1.0983 1.1077 24 4.60 1.0928 1.1027 25 4.80 1.0878 1.0988 26 5.00 1.0829 1.0944 27 5.20 1.0808 1.0937 28 5.40 1.0823 1.0957 29 5.60 1.0828 1.0975 30 5.80 1.0835 1.0989

  • W(z) values only valid for core average burnups 150 MWd/MTU

80% of full power W(z) values are applicable for powers 75% P < 85%

90% of full power W(z) values are applicable for powers 85% P < 95%

Rod insertion is given as a target value. Use control rods as necessary to control to target AO Page 19 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Table 6 (cont.) - W(z) Values Associated with Figure 5 for Part Power Surveillances*

(Top 10% and Bottom 8% excluded)

Height Part Power W(z) Functions (% of Hot Full Power) 80 90 D-Bank @ 198 Steps D-Bank @ 206 Steps

[ft] HFP AO = 0.38% HFP AO = 0.38%

31 6.00 1.0865 1.1026 32 6.20 1.0895 1.1071 33 6.40 1.0936 1.1114 34 6.61 1.0979 1.1167 35 6.81 1.1005 1.1199 36 7.01 1.1053 1.1245 37 7.21 1.1075 1.1274 38 7.41 1.1096 1.1297 39 7.61 1.1119 1.1320 40 7.81 1.1127 1.1323 41 8.01 1.1140 1.1322 42 8.21 1.1142 1.1312 43 8.41 1.1130 1.1301 44 8.61 1.1155 1.1308 45 8.81 1.1185 1.1331 46 9.01 1.1236 1.1366 47 9.21 1.1339 1.1454 48 9.41 1.1431 1.1526 49 9.61 1.1533 1.1608 50 9.81 1.1655 1.1709 51 10.01 1.1751 1.1783 52 10.21 1.1873 1.1881 53 10.41 1.1980 1.1972 54 10.61 1.2127 1.2101 55 10.81 1.2297 1.2260 56 11.01 1.0000 1.0000 57 11.21 1.0000 1.0000 58 11.41 1.0000 1.0000 59 11.61 1.0000 1.0000 60 11.81 1.0000 1.0000

[TOP] 61 12.01 1.0000 1.0000

  • W(z) values only valid for core average burnups 150 MWd/MTU

80% of full power W(z) values are applicable for powers 75% P < 85%

90% of full power W(z) values are applicable for powers 85% P < 95%

Rod insertion is given as a target value. Use control rods as necessary to control to target AO Page 20 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Figure 1 Reactor Core Safety Limits 680 2425 psia 660 2250 psia Unacceptable 640 1850 psia RCS Tavg (°F) 620 600 Acceptable 580 560 540 0 0.2 0.4 0.6 0.8 1 1.2 1.4 Fraction of 1677 MWt Rated Thermal Power Page 21 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Figure 2 Rod Insertion Limit, 128 Step Tip-to-Tip Bank B 200 150 Bank Position, Steps Bank C 100 Bank D 50 0

0 20 40 60 80 100 Power Level, % of Rated Thermal Power Bank Positions Given By:

  • Bank D = (150 / 63) * (P - 100) + 185
  • Bank C = (150 / 63) * (P - 100) + 185 + 128
  • Bank B = (150 / 63) * (P - 100) + 185 + 128 + 128 NOTE: The top of the active fuel height corresponds to 224 steps.

Page 22 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Figure 3 Rod Insertion Limit, 128 Step Tip-to-Tip, One Bottomed Rod (Technical Specification 3.1.4, Condition B) 224 200 Bank C 150 Operation Bank Position, Steps Forbidden in this Region 100 Bank D 50 0

0 20 40 60 80 100 Power Level, % of Rated Thermal Power Bank Positions Given By:

  • Bank D = (150 / 63) * (P - 90) + 224
  • Bank C = (150 / 63) * (P - 90) + 224 + 128 NOTE: The top of the active fuel height corresponds to 224 steps.

Page 23 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Figure 4 Rod Insertion Limit, 128 Step Tip-to-Tip, One Inoperable Rod (Technical Specification 3.1.4, Condition A) 224 200 Bank C 150 Bank Position, Steps Operation Forbidden in this Region Bank D 100 50 0

0 20 40 60 80 100 Power Level, % of Rated Thermal Power Bank Positions Given By:

  • Bank D = (150 / 63) * (P - 70) + 224
  • Bank C = (150 / 63) * (P - 70) + 224 + 128 NOTE: The top of the active fuel height corresponds to 224 steps.

Page 24 of 25

Core Operating Limits Report Unit 1, Cycle 31 Revision 0 Figure 5 Flux Difference Operating Envelope associated with Table 2, Table 4, and Table 6 110

-9 8 100 Unacceptable Unacceptable 90 80 Acceptable 70 60

% Power 50

-22 21 40 30 20 10 0

-25 -20 -15 -10 -5 0 5 10 15 20 25 I %

Page 25 of 25

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