L-23-125, Cycle 24 Core Operating Limits Report

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Cycle 24 Core Operating Limits Report
ML23137A164
Person / Time
Site: Beaver Valley
Issue date: 05/17/2023
From: Blair B
Energy Harbor Nuclear Corp
To:
Office of Nuclear Reactor Regulation, Document Control Desk
References
L-23-125
Download: ML23137A164 (1)
v • d • e


Text

energy Energy Harbor Nucl ear Corp.

harbor Beaver Valley Pow er Station P. 0. Box4 Shippingport, PA 150 77 Barry N. Blair 724-682-5234 Site Vice President, Beaver Valley Nuclear

May 17, 2023 L-23-125

ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

SUBJECT:

Beaver Valley Power Station, Unit No. 2 Docket No. 50-412, License No. NPF-73 C ycle 24 Core O peratin g Limits Re port

Pursuant to the requirements of Beaver Valley Power Station, Unit No. 2 Technical Specification (TS) 5.6.3, "CORE OPERATING LIMITS REPORT (COLR)," Energy Harbor Nuclear Corp. hereby submits the COLR for Cycle 24. TS 5.6.3.d requires, in part, that the COLR be provided to the Nuclear Regulatory Commission upon issuance for each reload cycle. The Cycle 24 COLR was made effective on April 22, 2023.

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.

Enclosure:

Beaver Valley Power Station, Unit No. 2, Core Operating Limits Report, Cycle 24

cc: NRC Region I Administrator NRC Resident Inspector NRC Project Manager Director BRP/DEP Site BRP/DEP Representative Enclosure L-23-125

Beaver Valley Power Station, Unit No. 2, Core Operating Limits Report, Cycle 24 (17 pages follow)

Licensing Requirements Manual Core Operating Limits Report 5.1

5.0 ADMINISTRATIVE CONTROLS

5.1 Core Operating Limits Report

This Core Operating Limits Report provides the cycle specific parameter limits developed in accordance with the NRC approved methodologies specified in Technical Specification Administrative Control 5.6.3.

5.1.1 SL 2.1.1 Reactor Core Safety Limits See Figure 5.1-1.

5.1.2 SHUTDOWN MARGIN (SDM)

a. In MODES 1, 2, 3, and 4, SHUTDOWN MARGIN shall be 1.77% k/k.(1)
b. Prior to manually blocking the Low Pressurizer Pressure Safety Injection Signal, the Reactor Coolant System shall be borated to the MODE 5 boron concentration and shall remain this boron concentration at all times when this signal is blocked.
c. In MODE 5, SHUTDOWN MARGIN shall be 1.0% k/k.

5.1.3 LCO 3.1.3 Moderator Temperature Coefficient (MTC)

a. Upper Limit - MTC shall be maintained within the acceptable operation limit specified in Technical Specification Figure 3.1.3-1.
b. Lower Limit - MTC shall be maintained less negative than - 4.29 x 10-4 k/k/F at RATED THERMAL POWER.
c. 300 ppm Surveillance Limit: (- 35 pcm/F)
d. The revised predicted near-EOL 300 ppm MTC shall be calculated using Figure 5.1-5 and the following algorithm from Reference 10 :

Revised Predicted MTC = Predicted MTC* + AFD Correction** + Predictive Correction***

where,

  • Predicted MTC is calculated from Figure 5.1-5 at the burnup corresponding to the measurement of 300 ppm at RTP conditions,
    • AFD Correction is the more negative value of :

{0 pcm/F or (AFD

  • AFD Sensitivity)}

where: AFD is the measured AFD minus the predicted AFD from an incore flux map taken at or near the burnup corresponding to 300 ppm.

and AFD Sensitivity = 0.10 pcm/F / AFD

      • Predictive Correction is -3 pcm/F.

(1) The MODE 1 and MODE 2 with keff 1.0 SDM requirements are included to address SDM requirements (e.g., MODE 1 Required Actions to verify SDM) that are not within the applicability of LCO 3.1.1, SHUTDOWN MARGIN (SDM).

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 1 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

5.1 Core Operating Limits Report

If the revised predicted MTC is less negative than the SR 3.1.3.2 limit (COLR 5.1.3.c) and all of the benchmark data contained in the surveillance procedure are met, then an MTC measurement in accordance with SR 3.1.3.2 is not required.

e. 60 ppm Surveillance Limit: (- 40.5 pcm/F) 5.1.4 LCO 3.1.5 Shutdown Bank Insertion Limits The Shutdown Banks shall be withdrawn to at least 225 steps.(2) 5.1.5 LCO 3.1.6 Control Bank Insertion Limits
a. Control Banks A and B shall be withdrawn to at least 225 steps.(2)
b. Control Banks C and D shall be limited in physical insertion as shown in Figure 5.1-2.(2)
c. Sequence Limits - The sequence of withdrawal shall be A, B, C and D bank, in that order.
d. Overlap Limits(2) - Overlap shall be such that step 129 on banks A, B, and C corresponds to step 1 on the following bank. When C bank is fully withdrawn, these limits are verified by confirming D bank is withdrawn at least to a position equal to the all-rods-out position minus 128 steps.

5.1.6 LCO 3.2.1 Heat Flux Hot Channel Factor (FQ(Z))

The Heat Flux Hot Channel Factor - (Z)FQ limit is defined by:

FQ (Z) for P > 0.5 CFQ*K(Z)

P

FQ (Z) for P 0.5 CFQ*K(Z)

0.5 Where

CFQ = 2.40 P = THERMAL POWERRATED THERMAL POWER

K(Z) = the function obtained from Figure 5.1-3.

FQC(Z)=FQM(Z)*1.0815$

FQW(Z)=[FXY(Z)]SurvM *[T(Z)]COLR*AXY(Z)*RjCOLRx1.0815$ for P > 0.5 P

FQW(Z)=[FXY(Z)]SurvM *[T(Z)]COLR*AXY(Z)*RjCOLRx1.0815$ for P 0.5 0.5 (2) As indicated by the group demand counter

$ An additional uncertainty is to be applied if the number of measured thimbles for the moveable incore detector system is less than 75% of the total number of thimbles. If there are less than 75% of the total number of thimbles and at least 50% of the total number of thimbles measured, and additional uncertainty of (0.01)*(3-T/12.5) is added to the measurement uncertainty, 1.05, where T is the total number of measured thimbles. This adjusted measurement uncertainty is then multiplied by 1.03 to obtain the total uncertainty to be applied. At least three measured thimbles per core quadrant are also required.

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 2 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

5.1 Core Operating Limits Report

[FXY(Z)]SurvM is the measured planar radial peaking factor and is equal to the value of F QM(Z)/PM(Z), where PM(Z) is the measured core average axial power shape.

The T(Z) values in Tables 5.1-1 and 5.1-2 were generated assuming that they will be used for a full power surveillance, applicable to RAOC Operating Space (ROS)

  1. 1 and #2, respectively. The Rj values in Table 5.1-3 and 5.1-4 were generated to account for the increase in FQ between surveillances, applicable to ROS #1 and
  1. 2, respectively. The AXY(Z) factors adjust the surveillance to the reference conditions assumed in generating the T(Z) factors. AXY(Z) may be assumed to equal 1.0 or may be determined for specific surveillance conditions using the approved methods listed in TS 5.6.3.

Either ROS1 or ROS2 may be implemented at any time during operation.

If ROS1 is implemented and entering LCO 3.2.1 Condition B for FQW(Z) not within limits, EITHER take Action B.1.1 and implement ROS2, OR take Action B.2.1 by using Table 5.1-5 to determine required THERMAL POWER and AFD limits based on Required FQW(Z) margin improvement.

If ROS2 is implemented and entering LCO 3.2.1 Condition B for FQW(Z) not within limits, take Action B.2.1 by using Table 5.1-5 to determine required THERMAL POWER and AFD limits based on Required FQW(Z) margin improvement.

5.1.7 LCO 3.2.2 Nuclear Enthalpy Rise Hot Channel Factor ( NHF)

F HN $CF*(1PF(1P))

H H Where: HCF = 1.62 PF = 0.3 H

P = THERMAL POWERRATED THERMAL POWER 5.1.8 LCO 3.2.3 Axial Flux Difference (AFD)

The AFD acceptable operation limits for both ROS1 and ROS2 are provided in Figure 5.1-4.

$ An additional uncertainty is to be applied if the number of measured thimbles for the moveable incore detector system is less than 75% of the total number of thimbles. If there are less than 75% of the total number of thimbles and at least 50% of the total number of thimbles measured, and additional uncertainty of (0.01)*(3-T/12.5) is added to the standard uncertainty on FNH of 1.04, where T is the total number of measured thimbles. At least three measured thimbles per core quadrant are also required.

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 3 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

5.1 Core Operating Limits Report

5.1.9 LCO 3.3.1 Reactor Trip System Instrumentation - Overtemperature and Overpower T Parameter Values from Table Notations 3 and 4

a. Overtemperature T Setpoint Parameter Values:

Parameter Value

Overtemperature T reactor trip setpoint K1 1.239 Overtemperature T reactor trip setpoint Tavg K2 0.0183/F coefficient Overtemperature T reactor trip setpoint pressure K3 0.001/psia coefficient Tavg at RATED THERMAL POWER T' 574.2F(1)

Nominal pressurizer pressure P' 2250 psia Measured reactor vessel T lead/lag time constants 1 = 0 sec*

(* The response time is toggled off to meet the analysis 2 = 0 sec*

value of zero.)

Measured reactor vessel T lag time constant 3 6 secs Measured reactor vessel average temperature lead/lag 4 30 secs time constants 5 4 secs Measured reactor vessel average temperature lag time 6 2 secs constant f (I) is a function of the indicated difference between top and bottom detectors of the power-range nuclear ion chambers, with gains to be selected based on measured instrument response during plant startup tests such that:

(i) For qt - qb between -37% and +15%, f1(I) = 0, where qt and qb are percent RATED THERMAL POWER in the top and bottom halves of the core respectively, and qt + qb is total THERMAL POWER in percent of RATED THERMAL POWER.

(ii) For each percent that the magnitude of (qt - qb) exceeds -37%, the T trip setpoint shall be automatically reduced by 2.52% of its value at RATED THERMAL POWER.

(iii) For each percent that the magnitude of (qt - qb) exceeds +15%, the T trip setpoint shall be automatically reduced by 1.47% of its value at RATED THERMAL POWER.

(1) T' represents the cycle-specific Full Power Tavg value used in core design.

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 4 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

5.1 Core Operating Limits Report

b. Overpower T Setpoint Parameter Values:

Parameter Value

Overpower T reactor trip setpoint K4 1.094 Overpower T reactor trip setpoint Tavg K5 0.02/F for increasing rate/lag coefficient average temperature K5 = 0/F for decreasing average temperature Overpower T reactor trip setpoint Tavg K6  )IRU7!7

heatup coefficient.   F for T T" Tavg at RATED THERMAL POWER T"  )(1)

Measured reactor vessel T lead/lag 1 = 0 sec*

time constants 2 = 0 sec*

(* The response time is toggled off to meet the analysis value of zero.)

Measured reactor vessel T lag time 3 6 secs constant Measured reactor vessel average 6 2 secs temperature lag time constant Measured reactor vessel average 7 10 secs temperature rate/lag time constant

(1) T represents the cycle-specific Full Power Tavg value used in core design.

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5.1 Core Operating Limits Report

5.1.10 LCO 3.4.1, RCS Pressure, Temperature, and Flow Departure from Nucleate Boiling (DNB) Limits

Parameter Indicated Value

Reactor Coolant System Tavg Tavg 577.8F(1)

Pressurizer Pressure Pressure 2214 psia(2)

Reactor Coolant System Total Flow Rate Flow 267,483 gpm(3)

5.1.11 LCO 3.9.1 Boron Concentration (MODE 6)

The boron concentration of the Reactor Coolant System, the refueling canal, and the refueling cavity shall be maintained 2400 ppm. This value includes a 50 ppm conservative allowance for uncertainties.

(1) The Reactor Coolant System (RCS) indicated Tavg value is determined by adding the appropriate allowances for rod control operation and verification via control board indication (3.6F) to the cycle specific full power Tavg used in the core design.

(2) The pressurizer pressure value includes allowances for pressurizer pressure control operation and verification via control board indication.

(3) The RCS total flow rate includes allowances for normalization of the cold leg elbow taps with a beginning of cycle precision RCS flow calorimetric measurement and verification on a periodic basis via control board indication.

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 6 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

5.1 Core Operating Limits Report

5.1.12 References

1. WCAP-9272-P-A, "WESTINGHOUSE RELOAD SAFETY EVALUATION METHODOLOGY," July 1985 (Westinghouse Proprietary).
2. WCAP-8745-P-A, "Design Bases for the Thermal Overpower T and Thermal Overtemperature T Trip Functions," September 1986.
3. WCAP-12945-P-A, Volume 1 (Revision 2) and Volumes 2 through 5 (Revision 1), "Code Qualification Document for Best Estimate LOCA Analysis," March 1998 (Westinghouse Proprietary).
4. WCAP-10216-P-A, Revision 1A, "Relaxation of Constant Axial Offset Control-FQ Surveillance Technical Specification," February 1994.
5. WCAP-14565-P-A, "VIPRE-01 Modeling and Qualification for Pressurized Water Reactor Non-LOCA Thermal-Hydraulic Safety Analysis,"

October 1999.

6. WCAP-12610-P-A, "VANTAGE+ Fuel Assembly Reference Core Report,"

April 1995 (Westinghouse Proprietary).

7. WCAP-15025-P-A, "Modified WRB-2 Correlation, WRB-2M, for Predicting Critical Heat Flux in 17x17 Rod Bundles with Modified LPD Mixing Vane Grids," April 1999.
8. Caldon, Inc. Engineering Report-80P, "Improving Thermal Power Accuracy and Plant Safety While Increasing Operating Power Level Using the LEFMTM System," Revision 0, March 1997.
9. Caldon, Inc. Engineering Report-160P, "Supplement to Topical Report ER-80P: Basis for a Power Uprate With the LEFMTM System," Revision 0, May 2000.
10. WCAP-13749-P-A, Safety Evaluation Supporting the Conditional Exemption of the Most Negative EOL Moderator Temperature Coefficient Measurement, March 1997 (Westinghouse Proprietary).
11. WCAP-16045-P-A, Qualification of the Two-Dimensional Transport Code PARAGON, August 2004.
12. WCAP-16045-P-A, Addendum 1-A, Qualification of the NEXUS Nuclear Data Methodology, August 2007.
13. WCAP-12610-P-A & CENPD-404-P-A, Addendum 1-A Optimized ZIRLOTM, July 2006.
14. WCAP-17661-P-A, Revision 1, Improved RAOC and CAOC FQ Surveillance Technical Specifications, February 2019.

. COLR Cycle 24 Beaver Valley Unit 2 5.1 - 7 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

670

660 2435 PSIA UNACCEPTABLE OPERATION

650

2250 PSIA

640

630 2000 PSIA

620

1920 PSIA

610

600 ACCEPTABLE OPERATION

590

580 00.20.40.60.811.21.4 FRACTION OF RATED THERMAL POWER

Figure 5.1-1 (Page 1 of 1)

REACTOR CORE SAFETY LIMIT THREE LOOP OPERATION

(Technical Specification Safety Limit 2.1.1)

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 8 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

225 (54.53, 225)

200 BANK C (100, 187)

175

150

125

(0, 114) BANK D 100

75

50

25

(8, 0)

020400 60801001030507090 PERCENT OF RATED THERMAL POWER

Figure 5.1-2 (Page 1 of 1)

CONTROL ROD INSERTION LIMITS AS A

FUNCTION OF RATED POWER LEVEL

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 9 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

1.2

0.0, 1.00 6.0, 1.00 1.0 12.0, 0.925

0.8

0.6

0.4

0.2

0.0 024681012 Core Height (feet)

Figure 5.1-3 (Page 1 of 1)

FQT NORMALIZED OPERATING ENVELOPE, K(Z)

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 10 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

ROS1 ROS2 RA1 RA2

120

110

100

90 UNACCEPTABLE UNACCEPTABLE OPERATION OPERATION 80

70 ACCEPTABLE OPERATION

60

50

40

30

20

10

0 50-40-30-20-100102030405060 Axial Flux Difference (Delta I) %

ROS1 ROS2

(-25%, 50%) (-8%, 100%) (-24%, 50%) (-6%, 100%)

(8%, 100%) (22%, 50%) (6%, 100%) (21%, 50%)

RA1 RA2

(-24%, 50%) (-8.7%, 95%) (-24%, 50%) (-10.4%, 90%)

(8.4 %, 95%) (21%, 50%) (9.8%, 90%) (21%, 50%)

Figure 5.1-4 (Page 1 of 1)

AXIAL FLUX DIFFERENCE LIMITS AS A FUNCTION OF

PERCENT OF RATED THERMAL POWER FOR RAOC

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 11 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

-29.00 CYCLE BURNUPMTC (MWD/MTU) (pcm/°F) 14000-30.139 18000-31.358

-30.00

-31.00

-32.00 1400015000160001700018000 CYCLE BURNUP (MWD/MTU)

Figure 5.1-5 (Page 1 of 1)

HOT FULL POWER PREDICTED

MODERATOR TEMPERATURE COEFFICIENT

AS A FUNCTION OF CYCLE BURNUP

WHEN 300 PPM IS ACHIEVED

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 12 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

Table 5.1-1 (Page 1 of 1)

FQ Surveillance T(Z) Function versus Burnup at 100% RTP for ROS1

Axial Elevation 150 1000 2000 3000 4000 6000 8000 10000 12000 14000 16000 Point (feet) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) 1* 12.0720 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 2* 11.8708 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 3* 11.6696 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 4* 11.4684 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 5* 11.2672 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 6* 11.0660 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 7* 10.8648 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 8 10.6636 1.1282 1.1016 1.0767 1.0765 1.0803 1.1268 1.1436 1.1629 1.1787 1.1825 1.1898 9 10.4624 1.2146 1.1912 1.1722 1.1735 1.1741 1.2209 1.2353 1.2508 1.2620 1.2600 1.2581 10 10.2612 1.2351 1.2165 1.2045 1.2074 1.2054 1.2501 1.2621 1.2741 1.2812 1.2788 1.2708 11 10.0600 1.1904 1.1774 1.1727 1.1773 1.1759 1.2154 1.2261 1.2391 1.2407 1.2406 1.2314 12 9.8588 1.1996 1.1957 1.1915 1.1969 1.2016 1.2286 1.2365 1.2490 1.2441 1.2466 1.2326 13 9.6576 1.2771 1.2762 1.2662 1.2684 1.2766 1.2987 1.3000 1.3045 1.2986 1.3014 1.2862 14 9.4564 1.2904 1.2926 1.2849 1.2881 1.2980 1.3140 1.3114 1.3075 1.3072 1.3033 1.2938 15 9.2552 1.2445 1.2492 1.2444 1.2488 1.2575 1.2715 1.2684 1.2624 1.2642 1.2553 1.2571 16 9.0540 1.2209 1.2277 1.2252 1.2301 1.2389 1.2516 1.2483 1.2374 1.2452 1.2262 1.2396 17 8.8528 1.2860 1.2936 1.2920 1.2964 1.3102 1.3146 1.3100 1.2925 1.2973 1.2698 1.2893 18 8.6516 1.3379 1.3459 1.3453 1.3495 1.3683 1.3654 1.3596 1.3342 1.3346 1.3029 1.3186 19 8.4504 1.3189 1.3288 1.3303 1.3352 1.3520 1.3500 1.3423 1.3168 1.3174 1.2864 1.2972 20 8.2492 1.2732 1.2846 1.2883 1.2940 1.3101 1.3086 1.3007 1.2739 1.2752 1.2505 1.2601 21 8.0480 1.3296 1.3420 1.3466 1.3518 1.3662 1.3617 1.3496 1.3211 1.3199 1.2922 1.3016 22 7.8468 1.3781 1.3914 1.3967 1.4014 1.4140 1.4065 1.3904 1.3587 1.3551 1.3261 1.3346 23 7.6456 1.3499 1.3640 1.3709 1.3759 1.3871 1.3794 1.3624 1.3317 1.3280 1.3006 1.3105 24 7.4444 1.2860 1.3008 1.3093 1.3149 1.3250 1.3182 1.3020 1.2743 1.2716 1.2472 1.2597 25 7.2432 1.3023 1.3178 1.3273 1.3327 1.3410 1.3322 1.3133 1.2847 1.2805 1.2544 1.2686 26 7.0420 1.3621 1.3782 1.3884 1.3930 1.3988 1.3855 1.3621 1.3310 1.3233 1.2938 1.3086 27 6.8408 1.3657 1.3823 1.3935 1.3978 1.4018 1.3861 1.3608 1.3308 1.3208 1.2930 1.3075 28 6.6396 1.2992 1.3161 1.3286 1.3337 1.3369 1.3220 1.2984 1.2731 1.2632 1.2407 1.2559 29 6.4384 1.2736 1.2908 1.3041 1.3094 1.3112 1.2956 1.2716 1.2489 1.2376 1.2184 1.2332 30 6.2372 1.3275 1.3448 1.3585 1.3627 1.3617 1.3417 1.3137 1.2899 1.2739 1.2548 1.2670 31 6.0360 1.3252 1.3423 1.3566 1.3608 1.3581 1.3365 1.3072 1.2850 1.2665 1.2496 1.2601 32 5.8348 1.2584 1.2772 1.2921 1.2948 1.2915 1.2717 1.2451 1.2274 1.2090 1.1970 1.2068 33 5.6336 1.2083 1.2295 1.2415 1.2474 1.2419 1.2251 1.1988 1.1823 1.1663 1.1555 1.1659 34 5.4324 1.2505 1.2717 1.2879 1.2937 1.2893 1.2644 1.2362 1.2166 1.1975 1.1861 1.1905 35 5.2312 1.2849 1.3046 1.3216 1.3214 1.3172 1.2968 1.2627 1.2396 1.2201 1.2103 1.2147 36 5.0300 1.2734 1.2931 1.3106 1.3106 1.3049 1.2878 1.2551 1.2300 1.2120 1.2037 1.2067 37 4.8288 1.2617 1.2810 1.2989 1.2996 1.2922 1.2799 1.2480 1.2226 1.2057 1.1980 1.1986 38 4.6276 1.2634 1.2822 1.3004 1.3015 1.2925 1.2816 1.2506 1.2245 1.2077 1.2001 1.1999 39 4.4264 1.2725 1.2907 1.3089 1.3106 1.3016 1.2917 1.2624 1.2361 1.2174 1.2095 1.2066 40 4.2252 1.2553 1.2726 1.2908 1.2932 1.2857 1.2772 1.2515 1.2264 1.2072 1.1997 1.1952 41 4.0240 1.1940 1.2102 1.2279 1.2318 1.2275 1.2216 1.2019 1.1805 1.1627 1.1576 1.1527 42 3.8228 1.1891 1.2042 1.2221 1.2273 1.2267 1.2192 1.2033 1.1834 1.1686 1.1599 1.1544 43 3.6216 1.2365 1.2512 1.2691 1.2752 1.2765 1.2666 1.2513 1.2304 1.2196 1.2042 1.1989 44 3.4204 1.2419 1.2551 1.2742 1.2808 1.2831 1.2763 1.2602 1.2440 1.2359 1.2207 1.2137 45 3.2192 1.2204 1.2337 1.2523 1.2595 1.2631 1.2622 1.2503 1.2378 1.2325 1.2206 1.2110 46 3.0180 1.2160 1.2278 1.2461 1.2523 1.2549 1.2574 1.2486 1.2387 1.2332 1.2238 1.2123 47 2.8168 1.2251 1.2402 1.2580 1.2614 1.2654 1.2688 1.2615 1.2567 1.2530 1.2463 1.2345 48 2.6156 1.2375 1.2628 1.2786 1.2779 1.2868 1.2918 1.2854 1.2817 1.2828 1.2772 1.2668 49 2.4144 1.2191 1.2473 1.2612 1.2568 1.2699 1.2788 1.2740 1.2746 1.2812 1.2779 1.2702 50 2.2132 1.1715 1.1977 1.2088 1.2011 1.2183 1.2312 1.2298 1.2358 1.2495 1.2507 1.2525 51 2.0120 1.1971 1.2218 1.2297 1.2171 1.2378 1.2531 1.2528 1.2624 1.2818 1.2856 1.2848 52 1.8108 1.2480 1.2707 1.2744 1.2554 1.2791 1.2954 1.2950 1.3073 1.3323 1.3385 1.3399 53 1.6096 1.2424 1.2612 1.2601 1.2377 1.2616 1.2791 1.2805 1.2974 1.3294 1.3408 1.3473 54 1.4084 1.2080 1.2223 1.2163 1.1918 1.2143 1.2327 1.2363 1.2579 1.2969 1.3143 1.3269 55* 1.2072 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 56* 1.0060 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 57* 0.8048 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 58* 0.6036 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 59* 0.4024 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 60* 0.2012 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 61* 0.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

  • Top and Bottom 10% Excluded

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 13 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

Table 5.1-2 (Page 1 of 1)

FQ Surveillance T(Z) Function versus Burnup at 100% RTP for ROS2

Axial Elevation 150 1000 2000 3000 4000 6000 8000 10000 12000 14000 16000 Point (feet) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) (MWD/MTU) 1* 12.0720 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 2* 11.8708 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 3* 11.6696 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 4* 11.4684 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 5* 11.2672 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 6* 11.0660 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 7* 10.8648 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 8 10.6636 1.0937 1.0734 1.0513 1.0364 1.0515 1.0791 1.1071 1.1198 1.1514 1.1806 1.1848 9 10.4624 1.1777 1.1605 1.1401 1.1268 1.1437 1.1704 1.1986 1.2065 1.2337 1.2576 1.2566 10 10.2612 1.1979 1.1849 1.1676 1.1617 1.1753 1.1999 1.2288 1.2330 1.2537 1.2725 1.2682 11 10.0600 1.1550 1.1497 1.1362 1.1413 1.1459 1.1683 1.1972 1.1993 1.2153 1.2303 1.2251 12 9.8588 1.1645 1.1663 1.1623 1.1679 1.1642 1.1825 1.2107 1.2090 1.2200 1.2302 1.2230 13 9.6576 1.2360 1.2349 1.2380 1.2433 1.2320 1.2584 1.2704 1.2705 1.2685 1.2728 1.2617 14 9.4564 1.2509 1.2525 1.2539 1.2593 1.2556 1.2751 1.2735 1.2817 1.2646 1.2648 1.2618 15 9.2552 1.2087 1.2128 1.2112 1.2169 1.2193 1.2368 1.2331 1.2405 1.2147 1.2104 1.2263 16 9.0540 1.1880 1.1942 1.1914 1.1964 1.2089 1.2175 1.2139 1.2223 1.1894 1.1874 1.2074 17 8.8528 1.2549 1.2619 1.2604 1.2645 1.2828 1.2804 1.2748 1.2796 1.2402 1.2376 1.2539 18 8.6516 1.3087 1.3163 1.3159 1.3197 1.3374 1.3312 1.3237 1.3240 1.2777 1.2704 1.2814 19 8.4504 1.2912 1.3006 1.3026 1.3067 1.3235 1.3162 1.3071 1.3082 1.2644 1.2521 1.2619 20 8.2492 1.2479 1.2589 1.2632 1.2679 1.2838 1.2765 1.2671 1.2690 1.2278 1.2129 1.2295 21 8.0480 1.3049 1.3168 1.3223 1.3262 1.3405 1.3292 1.3157 1.3154 1.2704 1.2529 1.2705 22 7.8468 1.3543 1.3670 1.3737 1.3767 1.3892 1.3742 1.3567 1.3542 1.3053 1.2850 1.3049 23 7.6456 1.3283 1.3424 1.3504 1.3535 1.3647 1.3492 1.3309 1.3285 1.2800 1.2623 1.2837 24 7.4444 1.2673 1.2829 1.2917 1.2955 1.3055 1.2910 1.2735 1.2723 1.2263 1.2135 1.2362 25 7.2432 1.2853 1.3012 1.3117 1.3150 1.3232 1.3066 1.2866 1.2839 1.2350 1.2251 1.2476 26 7.0420 1.3465 1.3624 1.3745 1.3767 1.3826 1.3618 1.3370 1.3309 1.2763 1.2684 1.2897 27 6.8408 1.3524 1.3687 1.3820 1.3839 1.3879 1.3657 1.3391 1.3308 1.2736 1.2704 1.2912 28 6.6396 1.2887 1.3054 1.3201 1.3227 1.3260 1.3059 1.2810 1.2731 1.2218 1.2220 1.2430 29 6.4384 1.2657 1.2827 1.2983 1.3010 1.3029 1.2832 1.2582 1.2489 1.2049 1.2032 1.2234 30 6.2372 1.3218 1.3389 1.3551 1.3567 1.3558 1.3327 1.3037 1.2899 1.2489 1.2426 1.2599 31 6.0360 1.3221 1.3392 1.3561 1.3574 1.3548 1.3313 1.3011 1.2850 1.2504 1.2410 1.2561 32 5.8348 1.2580 1.2753 1.2922 1.2946 1.2911 1.2706 1.2432 1.2274 1.2022 1.1920 1.2060 33 5.6336 1.2083 1.2263 1.2416 1.2473 1.2419 1.2251 1.1986 1.1823 1.1625 1.1536 1.1659 34 5.4324 1.2487 1.2706 1.2868 1.2940 1.2894 1.2629 1.2349 1.2167 1.1976 1.1805 1.1884 35 5.2312 1.2747 1.2967 1.3133 1.3201 1.3172 1.2881 1.2606 1.2394 1.2199 1.2004 1.2036 36 5.0300 1.2580 1.2786 1.2958 1.3032 1.3042 1.2763 1.2496 1.2277 1.2105 1.1917 1.1934 37 4.8288 1.2447 1.2637 1.2816 1.2875 1.2903 1.2650 1.2383 1.2156 1.2008 1.1826 1.1821 38 4.6276 1.2442 1.2629 1.2809 1.2843 1.2892 1.2658 1.2389 1.2158 1.2019 1.1836 1.1804 39 4.4264 1.2514 1.2691 1.2874 1.2883 1.2949 1.2736 1.2464 1.2249 1.2094 1.1906 1.1843 40 4.2252 1.2326 1.2502 1.2676 1.2684 1.2752 1.2573 1.2315 1.2126 1.1971 1.1791 1.1704 41 4.0240 1.1717 1.1908 1.2049 1.2083 1.2130 1.2007 1.1788 1.1649 1.1514 1.1360 1.1265 42 3.8228 1.1694 1.1879 1.1986 1.2025 1.2049 1.1966 1.1767 1.1653 1.1512 1.1395 1.1256 43 3.6216 1.2189 1.2362 1.2429 1.2483 1.2496 1.2400 1.2257 1.2089 1.1979 1.1847 1.1661 44 3.4204 1.2255 1.2411 1.2451 1.2519 1.2540 1.2434 1.2391 1.2176 1.2137 1.1981 1.1785 45 3.2192 1.2058 1.2198 1.2220 1.2292 1.2320 1.2267 1.2298 1.2051 1.2096 1.1936 1.1765 46 3.0180 1.1988 1.2056 1.2123 1.2189 1.2241 1.2206 1.2270 1.2029 1.2100 1.1932 1.1816 47 2.8168 1.2058 1.2087 1.2206 1.2268 1.2337 1.2298 1.2383 1.2191 1.2280 1.2122 1.2028 48 2.6156 1.2196 1.2234 1.2393 1.2453 1.2523 1.2503 1.2601 1.2396 1.2547 1.2404 1.2288 49 2.4144 1.1982 1.2071 1.2208 1.2266 1.2343 1.2362 1.2480 1.2324 1.2509 1.2395 1.2275 50 2.2132 1.1481 1.1576 1.1689 1.1743 1.1827 1.1889 1.2037 1.1976 1.2179 1.2116 1.2089 51 2.0120 1.1728 1.1797 1.1878 1.1919 1.2002 1.2088 1.2253 1.2255 1.2473 1.2438 1.2402 52 1.8108 1.2222 1.2257 1.2297 1.2316 1.2391 1.2484 1.2655 1.2711 1.2944 1.2935 1.2936 53 1.6096 1.2162 1.2155 1.2149 1.2145 1.2210 1.2317 1.2506 1.2632 1.2899 1.2945 1.3007 54 1.4084 1.1821 1.1771 1.1718 1.1690 1.1745 1.1861 1.2067 1.2262 1.2568 1.2679 1.2810 55* 1.2072 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 56* 1.0060 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 57* 0.8048 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 58* 0.6036 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 59* 0.4024 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 60* 0.2012 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 61* 0.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000 1.0000

  • Top and Bottom 10% Excluded

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 14 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

Table 5.1-3 (Page 1 of 1)

FQ Surveillance Rj Factor versus Burnup at 100% RTP for ROS1

Cycle Rj Penalty Cycle Rj Penalty Cycle Rj Penalty Burnup Multiplier Burnup Multiplier Burnup Multiplier (MWD/MTU) (MWD/MTU) (MWD/MTU) 150 1.028 6800 1.000 13449 1.000 346 1.028 6995 1.000 13645 1.000 541 1.027 7191 1.000 13841 1.001 737 1.026 7386 1.000 14036 1.001 932 1.023 7582 1.000 14232 1.001 1128 1.020 7778 1.000 14427 1.002 1323 1.021 7973 1.000 1519 1.023 8169 1.000 1715 1.023 8364 1.000 1910 1.024 8560 1.000 2106 1.026 8756 1.000 2301 1.026 8951 1.000 2497 1.025 9147 1.000 2693 1.025 9342 1.000 2888 1.023 9538 1.000 3084 1.021 9733 1.000 3279 1.021 9929 1.000 3475 1.019 10125 1.000 3670 1.013 10320 1.001 3866 1.010 10516 1.002 4062 1.007 10711 1.003 4257 1.005 10907 1.004 4453 1.003 11102 1.000 4648 1.001 11298 1.000 4844 1.000 11494 1.000 5039 1.001 11689 1.000 5235 1.001 11885 1.000 5431 1.000 12080 1.000 5626 1.000 12276 1.000 5822 1.000 12472 1.000 6017 1.000 12667 1.000 6213 1.000 12863 1.000 6409 1.000 13058 1.000 6604 1.000 13254 1.000

Note: The Burnup Dependent Transient FQ Margin Decrease Factor Rj, to be applied to FQ(Z) in accordance with Technical Specification Surveillance Requirement (SR) 3.2.1.2, is the amount by which FQ(Z) is calculated to increase over a 39 Effective Full Power Day (EFPD) interval (surveillance interval of 31 EFPD plus the maximum allowable extension not to exceed 25% of the surveillance interval per Technical Specification SR 3.0.2) starting from the burnup at which the FQ(Z) was determined. Values may be interpolated to the surveillance cycle burnup.

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 15 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

Table 5.1-4 (Page 1 of 1)

FQ Surveillance Rj Factor versus Burnup at 100% RTP for ROS2

Cycle Rj Penalty Cycle Rj Penalty Cycle Rj Penalty Burnup Multiplier Burnup Multiplier Burnup Multiplier (MWD/MTU) (MWD/MTU) (MWD/MTU) 150 1.037 6800 1.000 13449 1.000 346 1.037 6995 1.000 13645 1.000 541 1.034 7191 1.000 13841 1.000 737 1.029 7386 1.000 14036 1.000 932 1.025 7582 1.001 14232 1.001 1128 1.020 7778 1.002 14427 1.002 1323 1.021 7973 1.002 1519 1.022 8169 1.003 1715 1.022 8364 1.004 1910 1.022 8560 1.004 2106 1.025 8756 1.005 2301 1.025 8951 1.006 2497 1.024 9147 1.000 2693 1.024 9342 1.000 2888 1.023 9538 1.000 3084 1.020 9733 1.000 3279 1.017 9929 1.000 3475 1.014 10125 1.000 3670 1.011 10320 1.000 3866 1.009 10516 1.000 4062 1.006 10711 1.000 4257 1.004 10907 1.000 4453 1.002 11102 1.000 4648 1.001 11298 1.000 4844 1.000 11494 1.000 5039 1.000 11689 1.000 5235 1.000 11885 1.000 5431 1.000 12080 1.000 5626 1.000 12276 1.000 5822 1.000 12472 1.000 6017 1.000 12667 1.000 6213 1.000 12863 1.000 6409 1.000 13058 1.000 6604 1.000 13254 1.000

Note: The Burnup Dependent Transient FQ Margin Decrease Factor Rj, to be applied to FQ(Z) in accordance with Technical Specification Surveillance Requirement (SR) 3.2.1.2, is the amount by which FQ(Z) is calculated to increase over a 39 Effective Full Power Day (EFPD) interval (surveillance interval of 31 EFPD plus the maximum allowable extension not to exceed 25% of the surveillance interval per Technical Specification SR 3.0.2) starting from the burnup at which the FQ(Z) was determined. Values may be interpolated to the surveillance cycle burnup.

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 16 LRM Revision 102 Licensing Requirements Manual Core Operating Limits Report 5.1

Table 5.1-5 (Page 1 of 1)

Required Thermal Power Limits and AFD Reductions

Required Action B.2.1 AFD Power Percent Space Reduction Reduction Margin ROS1 RA1 2.00% 5% 1.91%

RA2 2.00% 10% 5.34%

< 50% RTP ROS2 RA1 0.00% 5% 0.76%

RA2 0.00% 10% 3.72%

< 50% RTP

COLR Cycle 24 Beaver Valley Unit 2 5.1 - 17 LRM Revision 102

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