L-24-254, Cycle 25 Core Operating Limits Report
| ML24320A102 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 11/15/2024 |
| From: | Blair B Vistra Operations Company |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| L-24-254 | |
| Download: ML24320A102 (1) | |
Text
Novemberl5,2024 L-24-254 A 1TN: 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 Cycle 25 Core Operating Limits Report Beaver Valley Power Station Barry N. Blair Site Vice President Vistra Operations Company LLC P.O. Box4 Shippingport, PA 15077 Office: 724.682.5234 Pursuant to the requirements of Beaver Valley Power Station, Unit No. 2 Technical Specification (TS) 5.6.3, "CORE OPERATING LIMITS REPORT (COLR)," Vistra Operations Company LLC hereby submits the COLR for Cycle 25. 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 25 COLR was made effective on October 25, 2024.
There are no regulatory commitments contained in this submittal. If there are any questions, or if additional information is required, please contact Jack Hicks, Senior Manager, Fleet Licensing, at (254) 897-6725 or jack.hicks@vistracorp.com.
Sincerely,
Enclosure:
Beaver Valley Power Station, Unit No. 2, Core Operating Limits Report, Cycle 25 cc:
NRC Region I Administrator NRC Resident Inspector NRR Project Manager Director BRP /DEP Site BRP /DEP Representative
Enclosure L-24-254 Beaver Valley Power Station, Unit No. 2, Core Operating Limits Report, Cycle 25 (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.
[deleted]
(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 25 Beaver Valley Unit 2 5.1 - 1 LRM Revision 107
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:
(Z)
FQ K(Z)
P CFQ
for P > 0.5 (Z)
FQ K(Z) 0.5 CFQ
for P 0.5 Where:
CFQ = 2.40 P =
THERMAL POWER RATED THERMAL POWER K(Z) = the function obtained from Figure 5.1-3.
FQ C(Z)=FQ M(Z)*1.0815$
FQ W(Z)=[FXY(Z)]Surv M
[T(Z)]COLR P
- AXY(Z)*Rj COLRx1.0815$ for P > 0.5 FQ W(Z)=[FXY(Z)]Surv M
[T(Z)]COLR 0.5
- AXY(Z)*Rj COLRx1.0815$ for P 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 25 Beaver Valley Unit 2 5.1 - 2 LRM Revision 107
Licensing Requirements Manual Core Operating Limits Report 5.1 5.1 Core Operating Limits Report
[FXY(Z)]Surv M
is the measured planar radial peaking factor and is equal to the value of FQ M(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 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
- 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 FQ W(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 FQ W(Z) margin improvement.
If ROS2 is implemented and entering LCO 3.2.1 Condition B for FQ W(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 FQ W(Z) margin improvement.
5.1.7 LCO 3.2.2 Nuclear Enthalpy Rise Hot Channel Factor (
N H
F)
P))
(1 PF (1
CF F
H H
N H
Where:
H CF
= 1.62 H
PF
0.3 P
THERMAL POWER RATED 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 25 Beaver Valley Unit 2 5.1 - 3 LRM Revision 107
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 coefficient K2 0.0183/F Overtemperature T reactor trip setpoint pressure coefficient K3 0.001/psia Tavg at RATED THERMAL POWER T' 574.2F(1)
Nominal pressurizer pressure P' 2250 psia Measured reactor vessel T lead/lag time constants
(* The response time is toggled off to meet the analysis value of zero.)
1 = 0 sec*
2 = 0 sec*
Measured reactor vessel T lag time constant 3 6 secs Measured reactor vessel average temperature lead/lag time constants 4 30 secs 5 4 secs Measured reactor vessel average temperature lag time constant 6 2 secs 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 25 Beaver Valley Unit 2 5.1 - 4 LRM Revision 107
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 rate/lag coefficient K5 0.02/F for increasing average temperature K5 = 0/F for decreasing average temperature Overpower T reactor trip setpoint Tavg heatup coefficient K6 0.0021/F for T > T" K6 = 0/F for T T" Tavg at RATED THERMAL POWER T" 574.2F(1)
Measured reactor vessel T lead/lag time constants 1 = 0 sec*
2 = 0 sec*
(* The response time is toggled off to meet the analysis value of zero.)
Measured reactor vessel T lag time constant 3 6 secs Measured reactor vessel average temperature lag time constant 6 2 secs Measured reactor vessel average temperature rate/lag time constant 7 10 secs (1) T represents the cycle-specific Full Power Tavg value used in core design.
COLR Cycle 25 Beaver Valley Unit 2 5.1 - 5 LRM Revision 107
Licensing Requirements Manual Core Operating Limits Report 5.1 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 25 Beaver Valley Unit 2 5.1 - 6 LRM Revision 107
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-16996-P-A, Revision 1, Realistic LOCA Evaluation Methodology Applied to the Full Spectrum of Break Sizes (FULL SPECTRUM LOCA Methodology), November 2016.
- 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 25 Beaver Valley Unit 2 5.1 - 7 LRM Revision 107
Licensing Requirements Manual Core Operating Limits Report 5.1 Figure 5.1-1 (Page 1 of 1)
REACTOR CORE SAFETY LIMIT THREE LOOP OPERATION (Technical Specification Safety Limit 2.1.1)
COLR Cycle 25 Beaver Valley Unit 2 5.1 - 8 LRM Revision 107 580 590 600 610 620 630 640 650 660 670 0
0.2 0.4 0.6 0.8 1
1.2 1.4 FRACTION OF RATED THERMAL POWER Tavg (Deg F)
UNACCEPTABLE OPERATION 2435 PSIA 2250 PSIA 2000 PSIA 1920 PSIA ACCEPTABLE OPERATION
Licensing Requirements Manual Core Operating Limits Report 5.1 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 25 Beaver Valley Unit 2 5.1 - 9 LRM Revision 107 ROD BANK POSITION (Steps Withdrawn)
Licensing Requirements Manual Core Operating Limits Report 5.1 Figure 5.1-3 (Page 1 of 1)
FQT NORMALIZED OPERATING ENVELOPE, K(Z)
COLR Cycle 25 Beaver Valley Unit 2 5.1 - 10 LRM Revision 107 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0
2 4
6 8
10 12 K(Z)
Core Height (feet) 0.0, 1.00 6.0, 1.00 12.0, 1.00
Licensing Requirements Manual Core Operating Limits Report 5.1 ROS1
(-25%, 50%) (-8%, 100%)
(8%, 100%) (22%, 50%)
ROS2
(-24%, 50%) (-6%, 100%)
(6%, 100%) (21%, 50%)
RA1
(-24%, 50%) (-8.7%, 95%)
(8.4 %, 95%) (21%, 50%)
RA2
(-24%, 50%) (-10.4%, 90%)
(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 25 Beaver Valley Unit 2 5.1 - 11 LRM Revision 107 0
10 20 30 40 50 60 70 80 90 100 110 120
-60
-50
-40
-30
-20
-10 0
10 20 30 40 50 60
% of Rated Thermal Power Axial Flux Difference (Delta I) %
ROS1 ROS2 RA1 RA2 UNACCEPTABLE OPERATION UNACCEPTABLE OPERATION ACCEPTABLE OPERATION
Licensing Requirements Manual Core Operating Limits Report 5.1 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 25 Beaver Valley Unit 2 5.1 - 12 LRM Revision 107
-32.00
-31.00
-30.00
-29.00 14000 15000 16000 17000 18000 MODERATOR TEMPERATURE COEFFICIENT (pcm/°F)
CYCLE BURNUP (MWD/MTU)
CYCLE BURNUP MTC (MWD/MTU) (pcm/°F) 14000
-30.119 18000
-31.349
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 18000 Point (ft)
(MWD/MTU)
(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 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 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 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 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 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 1.0000 7
10.8648 1.0552 1.0383 1.0094 1.0003 1.0058 1.0316 1.0728 1.0917 1.1104 1.1294 1.1458 1.1703 8
10.6636 1.1121 1.0996 1.0808 1.0746 1.0828 1.1098 1.1476 1.1638 1.1788 1.1930 1.2033 1.2225 9
10.4624 1.1986 1.1890 1.1768 1.1718 1.1812 1.2075 1.2401 1.2522 1.2644 1.2706 1.2774 1.2906 10 10.2612 1.2205 1.2141 1.2092 1.2059 1.2163 1.2406 1.2674 1.2759 1.2882 1.2854 1.2907 1.2989 11 10.0600 1.1779 1.1751 1.1773 1.1763 1.1878 1.2097 1.2315 1.2377 1.2513 1.2449 1.2486 1.2540 12 9.8588 1.1939 1.1887 1.1988 1.1965 1.2122 1.2261 1.2434 1.2480 1.2579 1.2503 1.2479 1.2531 13 9.6576 1.2691 1.2572 1.2800 1.2782 1.2920 1.2926 1.3096 1.3109 1.3088 1.3045 1.2900 1.2925 14 9.4564 1.2824 1.2733 1.2967 1.2954 1.3084 1.3049 1.3172 1.3164 1.3078 1.3058 1.2942 1.2925 15 9.2552 1.2323 1.2338 1.2550 1.2551 1.2669 1.2640 1.2681 1.2734 1.2652 1.2573 1.2587 1.2531 16 9.0540 1.2101 1.2216 1.2347 1.2357 1.2460 1.2425 1.2487 1.2504 1.2487 1.2363 1.2400 1.2380 17 8.8528 1.2772 1.2951 1.3011 1.3017 1.3098 1.3047 1.3136 1.3038 1.3037 1.2949 1.2883 1.2867 18 8.6516 1.3315 1.3487 1.3535 1.3539 1.3605 1.3554 1.3557 1.3428 1.3414 1.3324 1.3172 1.3156 19 8.4504 1.3129 1.3306 1.3379 1.3390 1.3453 1.3405 1.3320 1.3226 1.3219 1.3125 1.2963 1.2953 20 8.2492 1.2678 1.2856 1.2950 1.2971 1.3033 1.2998 1.2827 1.2768 1.2777 1.2705 1.2588 1.2639 21 8.0480 1.3246 1.3425 1.3530 1.3544 1.3591 1.3529 1.3283 1.3212 1.3203 1.3114 1.2997 1.3056 22 7.8468 1.3735 1.3913 1.4027 1.4035 1.4066 1.3977 1.3677 1.3558 1.3535 1.3434 1.3321 1.3405 23 7.6456 1.3454 1.3632 1.3760 1.3774 1.3800 1.3714 1.3407 1.3265 1.3250 1.3164 1.3081 1.3204 24 7.4444 1.2815 1.2992 1.3133 1.3157 1.3183 1.3111 1.2819 1.2672 1.2675 1.2617 1.2575 1.2740 25 7.2432 1.2979 1.3155 1.3306 1.3329 1.3344 1.3257 1.2941 1.2754 1.2751 1.2692 1.2665 1.2853 26 7.0420 1.3571 1.3760 1.3918 1.3932 1.3929 1.3793 1.3438 1.3188 1.3164 1.3090 1.3064 1.3263 27 6.8408 1.3600 1.3801 1.3967 1.3981 1.3969 1.3806 1.3456 1.3157 1.3130 1.3072 1.3060 1.3267 28 6.6396 1.2928 1.3138 1.3313 1.3340 1.3332 1.3177 1.2872 1.2563 1.2553 1.2535 1.2559 1.2775 29 6.4384 1.2666 1.2884 1.3064 1.3096 1.3085 1.2921 1.2639 1.2330 1.2293 1.2299 1.2345 1.2558 30 6.2372 1.3198 1.3424 1.3606 1.3630 1.3600 1.3388 1.3090 1.2777 1.2657 1.2651 1.2694 1.2884 31 6.0360 1.3166 1.3399 1.3584 1.3609 1.3574 1.3349 1.3059 1.2768 1.2635 1.2585 1.2639 1.2812 32 5.8348 1.2533 1.2747 1.2933 1.2968 1.2917 1.2728 1.2474 1.2239 1.2122 1.2044 1.2121 1.2288 33 5.6336 1.2034 1.2239 1.2428 1.2470 1.2446 1.2270 1.1996 1.1798 1.1720 1.1610 1.1704 1.1858 34 5.4324 1.2505 1.2705 1.2897 1.2939 1.2922 1.2682 1.2412 1.2182 1.2039 1.1883 1.1945 1.2050 35 5.2312 1.2829 1.2984 1.3178 1.3214 1.3217 1.3006 1.2669 1.2431 1.2272 1.2131 1.2192 1.2227 36 5.0300 1.2721 1.2873 1.3070 1.3095 1.3082 1.2913 1.2596 1.2357 1.2196 1.2050 1.2124 1.2146 37 4.8288 1.2607 1.2751 1.2946 1.2983 1.2952 1.2831 1.2527 1.2293 1.2137 1.1999 1.2063 1.2052 38 4.6276 1.2628 1.2764 1.2955 1.2999 1.2952 1.2844 1.2551 1.2317 1.2162 1.2029 1.2074 1.2045 39 4.4264 1.2725 1.2849 1.3034 1.3085 1.3029 1.2940 1.2657 1.2422 1.2262 1.2130 1.2150 1.2085 40 4.2252 1.2557 1.2670 1.2846 1.2910 1.2860 1.2791 1.2535 1.2312 1.2160 1.2040 1.2041 1.1949 41 4.0240 1.1945 1.2046 1.2218 1.2305 1.2267 1.2228 1.2025 1.1841 1.1716 1.1625 1.1621 1.1539 42 3.8228 1.1904 1.1996 1.2166 1.2265 1.2250 1.2201 1.2028 1.1855 1.1734 1.1656 1.1625 1.1557 43 3.6216 1.2383 1.2479 1.2650 1.2759 1.2751 1.2652 1.2488 1.2350 1.2207 1.2083 1.2041 1.1937 44 3.4204 1.2457 1.2537 1.2704 1.2819 1.2818 1.2733 1.2596 1.2515 1.2372 1.2236 1.2182 1.2034 45 3.2192 1.2279 1.2337 1.2481 1.2601 1.2617 1.2584 1.2504 1.2471 1.2343 1.2233 1.2155 1.1970 46 3.0180 1.2233 1.2278 1.2415 1.2528 1.2541 1.2546 1.2499 1.2469 1.2354 1.2260 1.2164 1.2066 47 2.8168 1.2330 1.2401 1.2529 1.2619 1.2632 1.2683 1.2651 1.2668 1.2550 1.2487 1.2361 1.2371 48 2.6156 1.2488 1.2626 1.2734 1.2786 1.2825 1.2917 1.2912 1.2947 1.2843 1.2807 1.2670 1.2689 49 2.4144 1.2312 1.2470 1.2558 1.2576 1.2649 1.2780 1.2825 1.2880 1.2826 1.2823 1.2711 1.2757 50 2.2132 1.1828 1.1971 1.2035 1.2019 1.2125 1.2300 1.2408 1.2496 1.2507 1.2612 1.2538 1.2626 51 2.0120 1.2094 1.2217 1.2244 1.2181 1.2312 1.2514 1.2666 1.2770 1.2828 1.2917 1.2862 1.2979 52 1.8108 1.2621 1.2712 1.2693 1.2569 1.2717 1.2932 1.3116 1.3228 1.3327 1.3453 1.3415 1.3558 53 1.6096 1.2577 1.2624 1.2554 1.2378 1.2537 1.2765 1.2991 1.3131 1.3294 1.3481 1.3491 1.3686 54 1.4084 1.2249 1.2243 1.2122 1.1900 1.2063 1.2298 1.2560 1.2732 1.2965 1.3218 1.3289 1.3544 55 1.2072 1.1989 1.1908 1.1724 1.1459 1.1595 1.1811 1.2086 1.2278 1.2566 1.2882 1.3012 1.3328 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 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 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 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 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 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 1.0000
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 18000 Point (ft)
(MWD/MTU)
(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 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 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 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 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 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 1.0000 7
10.8648 1.0476 1.0148 0.9905 0.9698 0.9845 1.0094 1.0317 1.0561 1.0837 1.1203 1.1353 1.1314 8
10.6636 1.1025 1.0742 1.0540 1.0393 1.0574 1.0830 1.1042 1.1275 1.1513 1.1835 1.1906 1.1788 9
10.4624 1.1864 1.1611 1.1433 1.1296 1.1506 1.1753 1.1939 1.2149 1.2339 1.2607 1.2622 1.2433 10 10.2612 1.2060 1.1851 1.1711 1.1663 1.1826 1.2054 1.2236 1.2398 1.2541 1.2756 1.2732 1.2535 11 10.0600 1.1618 1.1483 1.1372 1.1438 1.1533 1.1740 1.1937 1.2051 1.2160 1.2332 1.2294 1.2142 12 9.8588 1.1711 1.1655 1.1577 1.1705 1.1717 1.1890 1.2085 1.2144 1.2208 1.2329 1.2263 1.2134 13 9.6576 1.2338 1.2416 1.2382 1.2482 1.2436 1.2509 1.2692 1.2682 1.2689 1.2749 1.2640 1.2518 14 9.4564 1.2429 1.2578 1.2565 1.2701 1.2630 1.2615 1.2736 1.2731 1.2701 1.2663 1.2624 1.2566 15 9.2552 1.1966 1.2169 1.2183 1.2298 1.2245 1.2176 1.2246 1.2273 1.2362 1.2114 1.2262 1.2177 16 9.0540 1.1773 1.1974 1.2009 1.2140 1.2091 1.1942 1.1974 1.2008 1.2197 1.1855 1.2065 1.2023 17 8.8528 1.2462 1.2649 1.2692 1.2833 1.2779 1.2573 1.2557 1.2534 1.2740 1.2373 1.2521 1.2499 18 8.6516 1.3025 1.3187 1.3240 1.3397 1.3340 1.3088 1.2970 1.2940 1.3103 1.2699 1.2799 1.2863 19 8.4504 1.2857 1.3023 1.3101 1.3270 1.3216 1.2943 1.2793 1.2776 1.2904 1.2521 1.2613 1.2746 20 8.2492 1.2432 1.2597 1.2698 1.2877 1.2832 1.2559 1.2399 1.2387 1.2468 1.2177 1.2279 1.2434 21 8.0480 1.3009 1.3171 1.3286 1.3468 1.3410 1.3087 1.2885 1.2836 1.2885 1.2590 1.2679 1.2838 22 7.8468 1.3509 1.3668 1.3795 1.3977 1.3907 1.3538 1.3298 1.3213 1.3212 1.2928 1.3015 1.3178 23 7.6456 1.3254 1.3411 1.3555 1.3736 1.3671 1.3304 1.3062 1.2968 1.2940 1.2694 1.2802 1.2980 24 7.4444 1.2645 1.2800 1.2957 1.3136 1.3083 1.2742 1.2517 1.2429 1.2387 1.2189 1.2324 1.2527 25 7.2432 1.2829 1.2981 1.3151 1.3325 1.3269 1.2911 1.2667 1.2555 1.2474 1.2280 1.2436 1.2642 26 7.0420 1.3438 1.3599 1.3779 1.3931 1.3862 1.3472 1.3184 1.3029 1.2893 1.2680 1.2852 1.3053 27 6.8408 1.3491 1.3663 1.3852 1.3980 1.3911 1.3534 1.3234 1.3061 1.2889 1.2667 1.2869 1.3070 28 6.6396 1.2848 1.3030 1.3228 1.3339 1.3287 1.2965 1.2694 1.2532 1.2357 1.2193 1.2400 1.2610 29 6.4384 1.2612 1.2802 1.3006 1.3096 1.3051 1.2763 1.2499 1.2332 1.2138 1.2015 1.2215 1.2422 30 6.2372 1.3167 1.3364 1.3572 1.3629 1.3575 1.3280 1.2984 1.2776 1.2525 1.2416 1.2589 1.2775 31 6.0360 1.3163 1.3367 1.3578 1.3610 1.3560 1.3290 1.2992 1.2768 1.2541 1.2410 1.2563 1.2732 32 5.8348 1.2533 1.2725 1.2933 1.2948 1.2914 1.2710 1.2448 1.2238 1.2071 1.1932 1.2077 1.2240 33 5.6336 1.2030 1.2240 1.2428 1.2472 1.2446 1.2266 1.1997 1.1826 1.1681 1.1559 1.1689 1.1840 34 5.4324 1.2461 1.2707 1.2900 1.2939 1.2922 1.2649 1.2412 1.2175 1.2041 1.1850 1.1925 1.2040 35 5.2312 1.2708 1.2970 1.3161 1.3210 1.3218 1.2920 1.2656 1.2413 1.2271 1.2066 1.2084 1.2157 36 5.0300 1.2572 1.2781 1.2971 1.3061 1.3079 1.2784 1.2543 1.2309 1.2183 1.1957 1.1993 1.2047 37 4.8288 1.2438 1.2593 1.2782 1.2900 1.2934 1.2645 1.2432 1.2202 1.2091 1.1848 1.1891 1.1919 38 4.6276 1.2439 1.2567 1.2757 1.2869 1.2914 1.2638 1.2438 1.2206 1.2106 1.1844 1.1883 1.1883 39 4.4264 1.2514 1.2634 1.2817 1.2905 1.2964 1.2709 1.2513 1.2283 1.2185 1.1914 1.1929 1.1911 40 4.2252 1.2332 1.2464 1.2623 1.2697 1.2755 1.2538 1.2363 1.2166 1.2063 1.1801 1.1793 1.1770 41 4.0240 1.1717 1.1885 1.2001 1.2089 1.2134 1.1972 1.1832 1.1692 1.1602 1.1374 1.1370 1.1337 42 3.8228 1.1662 1.1858 1.1932 1.2024 1.2092 1.1971 1.1815 1.1699 1.1603 1.1415 1.1394 1.1333 43 3.6216 1.2121 1.2346 1.2378 1.2483 1.2549 1.2462 1.2284 1.2140 1.2022 1.1867 1.1791 1.1714 44 3.4204 1.2178 1.2399 1.2409 1.2521 1.2579 1.2547 1.2396 1.2225 1.2158 1.2001 1.1892 1.1811 45 3.2192 1.1986 1.2190 1.2177 1.2295 1.2362 1.2390 1.2300 1.2122 1.2122 1.1957 1.1820 1.1739 46 3.0180 1.1924 1.2054 1.2083 1.2192 1.2179 1.2334 1.2269 1.2114 1.2123 1.1953 1.1824 1.1815 47 2.8168 1.2040 1.2080 1.2161 1.2270 1.2247 1.2450 1.2401 1.2282 1.2300 1.2139 1.2015 1.2063 48 2.6156 1.2260 1.2227 1.2338 1.2451 1.2428 1.2670 1.2655 1.2537 1.2567 1.2415 1.2275 1.2356 49 2.4144 1.2112 1.2067 1.2154 1.2261 1.2240 1.2525 1.2560 1.2490 1.2533 1.2400 1.2267 1.2408 50 2.2132 1.1635 1.1570 1.1634 1.1735 1.1721 1.2046 1.2141 1.2128 1.2205 1.2116 1.2086 1.2266 51 2.0120 1.1898 1.1794 1.1824 1.1909 1.1889 1.2248 1.2383 1.2407 1.2501 1.2431 1.2394 1.2593 52 1.8108 1.2416 1.2260 1.2245 1.2306 1.2268 1.2649 1.2812 1.2864 1.2972 1.2918 1.2918 1.3139 53 1.6096 1.2372 1.2165 1.2101 1.2134 1.2085 1.2479 1.2681 1.2781 1.2926 1.2920 1.2984 1.3250 54 1.4084 1.2045 1.1788 1.1676 1.1681 1.1620 1.2016 1.2253 1.2404 1.2593 1.2648 1.2782 1.3100 55 1.2072 1.1785 1.1459 1.1285 1.1247 1.1163 1.1535 1.1784 1.1971 1.2195 1.2307 1.2508 1.2880 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 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 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 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 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 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 1.0000
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 Burnup (MWD/MTU)
Rj Penalty Multiplier Cycle Burnup (MWD/MTU)
Rj Penalty Multiplier Cycle Burnup (MWD/MTU)
Rj Penalty Multiplier 150 1.0439 7972 1.0081 15794 1.0002 346 1.0363 8168 1.0074 15990 1.0013 541 1.0293 8363 1.0067 16185 1.0024 737 1.0231 8559 1.0081 16381 1.0036 932 1.0178 8754 1.0072 16576 1.0043 1128 1.0131 8950 1.0064 16772 1.0047 1323 1.0096 9145 1.0062 16967 1.0050 1519 1.0078 9341 1.0056 17163 1.0052 1714 1.0073 9536 1.0046 17358 1.0053 1910 1.0076 9732 1.0040 17554 1.0053 2106 1.0091 9928 1.0035 17750 1.0052 2301 1.0101 10123 1.0031 17945 1.0049 2497 1.0110 10319 1.0027 18141 1.0050 2692 1.0127 10514 1.0023 18336 1.0052 2888 1.0126 10710 1.0019 3083 1.0117 10905 1.0016 3279 1.0100 11101 1.0017 3474 1.0081 11296 1.0014 3670 1.0054 11492 1.0029 3865 1.0036 11687 1.0026 4061 1.0022 11883 1.0024 4257 1.0011 12079 1.0022 4452 1.0004 12274 1.0021 4648 1.0000 12470 1.0020 4843 1.0000 12665 1.0019 5039 1.0000 12861 1.0018 5234 1.0000 13056 1.0000 5430 1.0000 13252 1.0000 5625 1.0000 13447 1.0000 5821 1.0000 13643 1.0000 6017 1.0000 13839 1.0000 6212 1.0000 14034 1.0000 6408 1.0000 14230 1.0000 6603 1.0000 14425 1.0000 6799 1.0000 14621 1.0000 6994 1.0000 14816 1.0000 7190 1.0018 15012 1.0000 7385 1.0051 15207 1.0000 7581 1.0076 15403 1.0000 7776 1.0088 15598 1.0000 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 maximum factor by which FQ(Z) is expected 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 25 Beaver Valley Unit 2 5.1 - 15 LRM Revision 107
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 Burnup (MWD/MTU)
Rj Penalty Multiplier Cycle Burnup (MWD/MTU)
Rj Penalty Multiplier Cycle Burnup (MWD/MTU)
Rj Penalty Multiplier 150 1.0411 7972 1.0043 15794 1.0045 346 1.0374 8168 1.0034 15990 1.0058 541 1.0338 8363 1.0051 16185 1.0070 737 1.0302 8559 1.0044 16381 1.0083 932 1.0264 8754 1.0038 16576 1.0091 1128 1.0247 8950 1.0033 16772 1.0095 1323 1.0229 9145 1.0047 16967 1.0098 1519 1.0227 9341 1.0044 17163 1.0100 1714 1.0209 9536 1.0063 17358 1.0101 1910 1.0181 9732 1.0060 17554 1.0100 2106 1.0150 9928 1.0055 17750 1.0098 2301 1.0124 10123 1.0050 17945 1.0094 2497 1.0102 10319 1.0044 18141 1.0095 2692 1.0065 10514 1.0039 18336 1.0097 2888 1.0043 10710 1.0034 3083 1.0025 10905 1.0029 3279 1.0010 11101 1.0004 3474 1.0000 11296 1.0001 3670 1.0003 11492 1.0000 3865 1.0000 11687 1.0000 4061 1.0000 11883 1.0000 4257 1.0000 12079 1.0000 4452 1.0000 12274 1.0000 4648 1.0000 12470 1.0000 4843 1.0000 12665 1.0000 5039 1.0000 12861 1.0000 5234 1.0000 13056 1.0000 5430 1.0000 13252 1.0000 5625 1.0000 13447 1.0000 5821 1.0000 13643 1.0000 6017 1.0000 13839 1.0000 6212 1.0000 14034 1.0000 6408 1.0000 14230 1.0000 6603 1.0000 14425 1.0000 6799 1.0000 14621 1.0000 6994 1.0022 14816 1.0000 7190 1.0050 15012 1.0000 7385 1.0071 15207 1.0010 7581 1.0069 15403 1.0022 7776 1.0055 15598 1.0033 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 maximum factor by which FQ(Z) is expected 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 25 Beaver Valley Unit 2 5.1 - 16 LRM Revision 107
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 Space AFD Reduction Power Reduction Percent Margin ROS1 RA1 RA2
< 50% RTP 2.00%
2.00%
5%
10%
3.44%
5.87%
ROS2 RA1 RA2
< 50% RTP 0.00%
0.00%
5%
10%
0.78%
3.19%
COLR Cycle 25 Beaver Valley Unit 2 5.1 - 17 LRM Revision 107