ML20147A596

Core Operating Limits Report (COLR) for Cycle 26

ML20147A596
Person / Time
Site:	Summer
Issue date:	05/26/2020
From:	Haselden R Dominion Energy South Carolina
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
20-193
Download: ML20147A596 (28)

Text

V. C. Summer Nuclear Station

~ Dominion Bradham Blvd & Hwy 215, Jenkinsville, SC 29065 Mailing Address:

P.O. Box 88, Jenkinsville, SC 29065 Dominion Energy.com

=--" Energy May 26, 2020 ATTN : Document Control Desk Serial No.20-193 US Nuclear Regulatory Commission LIC/TS/R0 Washington , D.C. 20555-001 Docket No. 50-395 License No. NPF-12 DOMINION ENERGY SOUTH CAROLINA, INC.

VIRGIL C. SUMMER NUCLEAR STATION UNIT 1 CORE OPERATING LIMITS REPORT (COLR) FOR CYCLE 26 In accordance with Section 6.9.1.11 of the Virgil C. Summer Nuclear Station Technical Specifications, Dominion Energy South Carolina, Inc., acting for itself and as an agent for South Carolina Public Service Authority, hereby submits the Core Operating Limits Report for Cycle 26.

Should you have any questions, please call Michael S. Moore at (803) 345-4752 .

Robin R. Haselden General Manager, Organization Effectiveness V. C. Summer Nuclear Station

Enclosure:

Core Operating Limits Report for Cycle 26 Commitments made by this letter: None w/o enclosure unless noted cc: G. J . Lindamood - Santee Cooper L. Dudes - NRG S. A. Williams - NRG NRG Resident Inspector

Serial No.20-193 Docket No. 50-395 VCSNS Core Operating Limits Report (COLR) for Cycle 26 be page 1 of 1 w/o enclosure unless noted be: R. R. Haselden - VCS J. H. Hamilton - VCS J.C. Mellette -VCS C. D. Sly - IN2SE M. S. Moore - VCS J. A Langan - MPS N. Turner - NAPS R. Philpot - SPS James Roth - IN2SE Kathryn Barret - IN2SE W. S. Blair - RS File: RR 5000 PRSF: SN-20-193 (w/ enclosure)

Concurrences:

See Correspondence Routing and Approval CHOP Sheet Action Plan: None Changes to the UFSAR, USAR, QA Topical Report, or ISFSI FSAR: None

DOMINION ENERGY SOUTH CAROLINA VIRGIL C. SUMMER NUCLEAR STATION UNITl CORE OPERATING LIMITS REPORT FOR CYCLE26 REVISION0 APRIL2020

LIST OF EFFECTIVE PAGES PAGE REVISION 0

ii 0 iii 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0

Table of Contents Section 1.0 Core Operating Limits Report 1 2.0 Operating Limits 2 2.1 Moderator Temperature Coefficient (Specification 3.1.1.3) 2 2.2 Shutdown Rod Insertion Limits (Specification 3.1.3.5) 2 2.3 Control Rod Insertion Limits (Specification 3.1.3.6) 3 2.4 Axial Flux Difference (Specification 3.2.1) 3 2.5 Heat Flux Hot Channel Factor - FQ(z) (Specification 3.2.2) 3 2.6 RCS Flow Rate and Nuclear Enthalpy Rise Hot Channel Factor - FfH (Specification 3.2.3) 4 2.7 Power Distribution Measurement Uncertainty (Specifications 3.2.2 and 3.2.3) 5 3.0 References 6 Revision 0

List of Tables Table Page Table 1. RAOC W(z) at 150, 3000, 5000, 8000 MWD/MTU V. C. Summer - Cycle 26 12 Table 2. RAOC W(z) at 10000, 14000, 20000 MWD/MTU V. C. Summer - Cycle 26 13 Table 3. RAOC FQ Margin Decrease in Excess of2% Per 31 EFPD- Cycle 26 14 Table 4. Alternate RAOC W(z) at 150, 3000, 5000, 8000 MWD/MTU V. C. Summer - Cycle 26 15 Table 5. Alternate RAOC W(z) at 10000, 14000, 20000 MWD/MTU V. C. Summer - Cycle 26 16 Table 6. Alternate RAOC FQ Margin Decrease in Excess of2% Per 31 EFPD- Cycle 26 17 Table 7. BASELOAD W(z) at 150, 3000, 5000, 8000 MWD/MTU V. C. Summer - Cycle 26 18 Table 8. BASELOAD W(z) at 10000, 14000, 20000 MWD/MTU V. C. Summer - Cycle 26 19 Table 9. BASELOAD FQ Margin Decrease in Excess of2% Per 31 EFPD- Cycle 26 20 ii Revision 0

List of Figures Figure Figure 1. Moderator Temperature Coefficient Versus Power Level V. C. Summer - Cycle 26 7 Figure 2. Rod Group Insertion Limits Versus Thermal Power for Three Loop Operation V. C. Summer - Cycle 26 8 Figure 3. Axial Flux Difference Limits as a Function of Rated Thermal Power V. C. Summer - Cycle 26 9 Figure 4. K(z) - Normalized FQ(z) as a Function of Core Height V. C. Summer - Cycle 26 10 Figure 5. Axial Flux Difference Limits as a Function of Rated Thermal Power (Alternate RAOC) V. C. Summer - Cycle 26 11 Figure 6. RCS Total Flowrate vs. R for Three Loop Operation V. C. Summer - Cycle 26 21 iii Revision 0

V. C. Summer Cycle 26 APRIL 2020 1.0 Core Operating Limits Report This Core Operating Limits Report (COLR) for V. C. Summer Station Cycle 26 has been prepared in accordance with the requirements of Technical Specification 6.9.1.11.

The Technical Specifications affected by this report are listed below:

3.1.1.3 Moderator Temperature Coefficient 3.1.3.5 Shutdown Rod Insertion Limits 3.1.3.6 Control Rod Insertion Limits 3.2.1 Axial Flux Difference 3.2.2 Heat Flux Hot Channel Factor - Fq(z) 3.2.3 RCS Flow Rate and Nuclear Enthalpy Rise Hot Channel Factor 3.3.3.11 Power Distribution Monitoring System (PDMS)

Revision 0

V. C. Summer Cycle 26 APRIL 2020 2.0 Operating Limits The cycle-specific parameter limits for the specifications listed in Section 1.0 are presented in the subsections which follow. These limits have been developed using the NRC-approved methodologies specified in Technical Specification 6.9 .1.11.

2.1 Moderator Temperature Coefficient (Specification 3.1.1.3):

2.1.1 The Moderator Temperature Coefficient (MTC) limits are:

The BOL/ARO-MTC shall be less positive than the limits shown in Figure 1.

The EOL/ARO/RTP-MTC shall be less negative than -4.8x10* 4 11k/k/°F (-48 pcm/°F).

where: BOL stands for Beginning of Cycle Life ARO stands for All Rods Out RTP stands for RATED THERMAL POWER EOL stands for End of Cycle Life 2.1.2 The MTC Surveillance limit is:

The 300 ppm/ARO/RTP-MTC should be less negative than or equal to -4. lx10 4 L1k/k/°F

(-41 pcm/°F).

2.1.3 The Revised Predicted near-EOL 300 ppm MTC shall be calculated using the following algorithm from Reference 2:

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

• AFD Correction is 0.05 pcm/°F/%MFD.

• • Predictive Correction is -3 pcm/°F.

If the Revised Predicted MTC is less negative than the SR 4.1.1.3b limit of

-4.lx10 4 L1k/k/°F, and all of the benchmark data contained in the surveillance procedure are met, then an MTC measurement in accordance with SR 4. l .1.3b is not required.

2.2 Shutdown Rod Insertion Limits (Specification 3.1.3.5):

The shutdown rods shall be withdrawn to at least 226 steps. The fully withdrawn position is 226 steps.

2 Revision 0

V. C. Summer Cycle 26 APRIL 2020 2.3 Control Rod Insertion Limits (Specification 3.1.3.6):

Control Bank A and B rods shall be withdrawn to at least 226 steps. Control Bank C and D Rod Insertion Limits are specified by Figure 2. Control rod overlap is 98 steps. The fully withdrawn position is 226 steps.

2.4 Axial Flux Difference (Specification 3.2.1):

2.4.1 The Axial Flux Difference (AFD) Limits for Relaxed Axial Offset Control (RAOC) operation for Cycle 26 are shown in Figure 3.

2.4.2 The Axial Flux Difference (AFD) target band during base load operations for Cycle 26 is:

BOL - EOL (0 - 23,000 MWD/MTU): +/-5% about a measured target value. The base load band will remain inside the RAOC band.

2.4.3 The Axial Flux Difference (AFD) Limits for Alternate Relaxed Axial Offset Control (RAOC) operation for Cycle 26 are shown in Figure 5.

2.4.4 The minimum allowable power level for base load operation, APLNo, is 75% of RA TED THERMAL POWER.

2.5 Heat Flux Hot Channel Factor - FQ(z) (Specification 3.2.2):

for P> 0.5 fRTP FQ (Z) ~ _Q_ x K(Z) forP::;; 0.5 where: p = ThermalPower 0.5 Rated Thermal Power 2.5.1 F&TP =2.45 2.5.2 K(z) is provided in Figure 4.

3 Revision 0

V. C. Summer Cycle 26 APRIL 2020 2.5.3 Elevation dependent W(z) values for RAOC operation at 150, 3000, 5000, 8000, 10000, 14000 and 20000 MWD/MTU are shown in Tables 1 through 2, respectively. This information is sufficient to determine W(z) versus core height in the range of 0 MWD/MTU to EOL bumup through the use of three point interpolation. Table 3 shows FQ margin decreases for RAOC operation that are greater than 2% per 31 Effective Full Power Days (EFPD). These values shall be used to increase FQM(z) as per Surveillance Requirement 4.2.2.2.e. A 2% penalty factor shall be used at all bumups that are outside the range of Table 3.

2.5.4 Elevation dependent W(z) values for Alternate RAOC operation at 150, 3000, 5000, 8000, 10000, 14000 and 20000 MWD/MTU are shown in Tables 4 through 5, respectively.

This information is sufficient to determine W(z) versus core height in the range of 0 MWD/MTU to EOL bumup through the use of three point interpolation. Table 6 shows FQ margin decreases for RAOC operation that are greater than 2% per 31 Effective Full Power Days (EFPD). These values shall be used to increase FQM(z) as per Surveillance Requirement 4.2.2.2.e. A 2% penalty factor shall be used at all bumups that are outside the range of Table 6.

2.5.5 Elevation dependent W(z)sL values for Baseload operation between 75 and 100% ofrated thermal power with the Section 2.4.2 specified target band about a measured target value at 150, 3000, 5000, 8000, 10000, 14000 and 20000 MWD/MTU are shown in Tables 7 through 8, respectively. This information is sufficient to determine W(z)sL versus core height for bumups in the range of0 MWD/MTU to EOL burnup through the use of three point interpolation. Table 9 shows FQ margin decreases for base load operation that are greater than 2% per 31 Effective Full Power Days (EFPD). These values shall be used to increase FQM(z) as per Surveillance Requirement 4.2.2.4.e. A 2% penalty factor shall be used at all bumups that are outside the range of Table 9.

2.6 RCS Flow Rate and Nuclear Enthalpy Rise Hot Channel Factor - Fli1 (Specification 3.2.3):

R= FfH where: p= ThermalPower FfJP x (1 + PF,tk x (1- P)) Rated ThermalPower 2.6.1 F~p = 1.62 2.6.2 PF,IB = 0.3 4 Revision 0

V. C. Summer Cycle 26 APRIL 2020 2.6.3 The Acceptable Operation Region from the combination of Reactor Coolant System total flow and R is provided in Figure 6.

2.7 Power Distribution Measurement Uncertainty (Specifications 3.2.2 and 3.2.3):

If the Power Distribution Monitoring System (PDMS) is OPERABLE, as defined in Technical Specification 3.3.3.11, the uncertainty, UFm, to be applied to the Nuclear Enthalpy Rise Hot Channel Factor FNm shall be calculated by the following formula:

u,lli UF,lli =l.0+--

100.0 where: U ~H = Uncertainty for enthalpy rise as defined in equation (5-19) in Reference 1 or 4.0, whichever is larger.

If the Power Distribution Monitoring System is OPERABLE, as defined in Technical Specification 3.3.3.11, the uncertainty, UFQ, to be applied to the Heat Flux Hot Channel Factor Fq(z) shall be calculated by the following formula:

UFQ = (1.0 + ~100.0

)

• ue where: U Q = Uncertainty for Fq(z) = 5.0 when confirming Fq(z) for RAOC or Base Load operation, or as defined in equation (5-19) in Reference 1 for all other purposes.

Ue = Engineering uncertainty factor.

= 1.03 If the Power Distribution Monitoring System is INOPERABLE, as defined in Technical Specification 3.3.3.11, the uncertainty, UFm, to be applied to the Nuclear Enthalpy Rise Hot Channel Factor FNm shall be calculated by the following formula:

5 Revision 0

V. C. Summer Cycle 26 APRIL 2020 UFMf = UFMim where: U FAHm = Base F,m measurement uncertainty.

= 1.04 If the Power Distribution Monitoring System is INOPERABLE, as defined in Technical Specification 3.3.3.11, the uncertainty, UFQ, to be applied to the Heat Flux Hot Channel Factor F0 (z) shall be calculated by the following formula:

where: U qu = Base Fo measurement uncertainty.

= 1.05 Ue = Engineering uncertainty factor.

= 1.03 3.0 References The analytical methods used to determine the core operating limits shall be those previously reviewed and approved by the NRC. These methods are listed in Technical Specification Section 6.9.1.11.

1) WCAP-12472-P-A, "BEACON Core Monitoring and Operations Support System," August, 1994, (W Proprietary)

WCAP-12472-P-A, Addendum 1-A, "BEACON Core Monitoring and Operations Support System," January 2000, (W Proprietary).

2) WCAP-13749-P-A, "Safety Evaluation Supporting the Conditional Exemption of the Most Negative EOL Moderator Temperature Coefficient," March 1997, (W Proprietary).

6 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Figure 1. Moderator Temperature Coefficient Versus Power Level V. C. Summer - Cycle 26 1.00 0.90 Unacceptable Operation 0.80 11.

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V. C. Summer Cycle 26 APRIL 2020 Figure 2. Rod Group Insertion Limits Versus Thermal Power for Three Loop Operation V. C. Summer - Cycle 26 230 I I I I I I I I I I I I

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V. C. Summer Cycle 26 APRIL 2020 Figure 3. Axial Flux Difference Limits as a Function of Rated Thermal Power V. C. Summer - Cycle 26 120 I (-8, 100) I (+8, 100) 100 I \,

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V. C. Summer Cycle 26 APRIL 2020 Figure 4. K(z) - Normalized FQ(z) as a Function of Core Height V. C. Summer - Cycle 26 1.1 0 .....-..---.----.-,--"T---.-.---r--.--....---.--.--..---.---.---,-.----r--.---,--~-.----.---.----.

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0. 00 ,....__.___...__.....__,__.....____.____.___.__,___,_..._____...__................__.____...______.___._....._..__...___.

0 2 4 6 8 10 12 Bottom Core Height (Feet) Top Revision 0

V. C. Summer Cycle 26 APRIL 2020 Figure 5. Axial Flux Difference Limit as a Function of Rated Thermal Power (Alternate RAOC)

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11 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 1. RAOC W(z) at 150, 3000, 5000, 8000 MWD/MTU V. C. Summer - Cycle 26 W(z) W(z) W(z) W(z) W(z) W(z) W(z) W(z)

Core Core 150 3000 5000 8000 150 3000 5000 8000 Height Height MWd/ MWd/ MWd/ MWd/ MWd/ MWd/ MWd/ MWd/

(ft) (ft)

MTU MTU MTU MTU MTU MTU MTU MTU 0.000 1.273 1.434 1.369 1.297 6.177 1.141 1.108 1.102 1.109 0.141 1.275 1.435 1.370 1.298 6.317 1.146 1.112 1.107 1.117 0.281 1.278 1.436 1.371 1.299 6.458 1.151 1.115 1.113 1.126 0.422 1.287 1.442 1.376 1.305 6.597 1.155 1.118 1.119 1.134 0.561 1.302 1.451 1.385 1.315 6.738 1.158 1.121 1.124 1.141 0.702 1.304 1.449 1.383 1.315 6.878 1.161 1.123 1.129 1.148 0.842 1.298 1.440 1.375 1.308 7.019 1.164 1.124 1.133 1.155 0.983 1.292 1.429 1.365 1.300 7.159 1.166 1.125 1.137 1.161 1.123 1.284 1.416 1.353 1.290 7.300 1.167 1.126 1.141 1.167 1.264 1.275 1.401 1.339 1.279 7.439 1.168 1.127 1.144 1.172 1.403 1.265 1.385 1.325 1.266 7.580 1.168 1.126 1.146 1.175 1.544 1.254 1.368 1.310 1.252 7.720 1.167 1.125 1.147 1.178 1.684 1.242 1.350 1.295 1.238 7.861 1.166 1.124 1.148 1.181 1.825 1.230 1.330 1.280 1.222 8.001 1.163 1.121 1.149 1.183 1.965 1.217 1.310 1.263 1.206 8.142 1.161 1.119 1.149 1.184 2.106 1.204 1.290 1.247 1.190 8.282 1.157 1.116 1.148 1.185 2.246 1.191 1.269 1.230 1.173 8.422 1.153 1.112 1.147 1.185 2.386 1.178 1.248 1.213 1.157 8.563 1.147 1.108 1.145 1.184 2.527 1.165 1.228 1.196 1.141 8.703 1.143 1.104 1.143 1.182 2.667 1.151 1.209 1.180 1.126 8.844 1.143 1.107 1.142 1.183 2.808 1.142 1.188 1.163 1.110 8.984 1.145 1.112 1.141 1.184 2.948 1.140 1.171 1.149 1.099 9.124 1.145 1.117 1.139 1.185 3.088 1.137 1.166 1.144 1.095 9.264 1.144 1.121 1.135 1.183 3.228 1.134 1.163 1.141 1.094 9.405 1.142 1.126 1.138 1.181 3.369 1.131 1.158 1.138 1.093 9.545 1.139 1.130 1.146 1.183 3.509 1.127 1.153 1.134 1.091 9.686 1.136 1.134 1.153 1.193 3.650 1.124 1.149 1.130 1.090 9.826 1.131 1.137 1.160 1.201 3.790 1.119 1.143 1.126 1.089 9.966 1.127 1.139 1.167 1.209 3.930 1.115 1.138 1.122 1.089 10.106 1.128 1.140 1.173 1.216 4.070 1.114 1.133 1.117 1.089 10.247 1.131 1.140 1.179 1.223 4.211 1.114 1.127 1.112 1.088 10.388 1.134 1.142 1.184 1.229 4.352 1.113 1.121 1.108 1.088 10.528 1.136 1.146 1.188 1.234 4.492 1.112 1.115 1.104 1.087 10.669 1.138 1.151 1.192 1.238 4.633 1.110 1.111 1.101 1.087 10.808 1.140 1.154 1.194 1.241 4.772 1.109 1.108 1.099 1.086 10.949 1.141 1.157 1.194 1.241 4.913 1.107 1.104 1.097 1.085 11.089 1.142 1.159 1.195 1.243 5.053 1.107 1.101 1.094 1.084 11.230 1.142 1.160 1.195 1.243 5.194 1.107 1.097 1.091 1.083 11.370 1.142 1.159 1.190 1.237 5.334 1.107 1.094 1.088 1.082 11.511 1.135 1.154 1.177 1.226 5.475 1.110 1.093 1.086 1.081 11.650 1.118 1.139 1.159 1.211 5.614 1.117 1.093 1.088 1.082 11.791 1.103 1.125 1.145 1.196 5.755 1.124 1.096 1.092 1.085 11.931 1.092 1.115 1.135 1.186 5.895 6.036 1.130 1.136 1.100 1.104 1.095 1.098 1.092 1.100 12.072 1.081 1.104 I

1.125 1.175 12 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 2. RAOC W(z) at 10000, 14000, 20000 MWD/MTU V. C. Summer - Cycle 26 W(z) W(z) W(z) W(z) W(z) W(z)

Core Core 10000 14000 20000 10000 14000 20000 Height Height MWd/ MWd/ MWd/ MWd/ MWd/ MWd/

(ft) (ft)

MTU MTU MTU MTU MTU MTU 0.000 1.258 1.194 1.206 6.177 1.119 1.128 1.194 0.141 1.260 1.197 1.207 6.317 1.128 1.135 1.202 0.281 1.261 1.199 1.209 6.458 1.138 1.142 1.209 0.422 1.268 1.207 1.217 6.597 1.147 1.148 1.216 0.561 1.279 1.221 1.232 6.738 1.155 1.154 1.221 0.702 1.279 1.224 1.235 6.878 1.163 1.159 1.226 0.842 1.274 1.221 1.232 7.019 1.170 1.164 1.230 0.983 1.268 1.217 1.227 7.159 1.177 1.168 1.232 1.123 1.259 1.212 1.221 7.300 1.184 1.172 1.235 1.264 1.249 1.205 1.213 7.439 1.189 1.175 1.236 1.403 1.238 1.197 1.205 7.580 1.193 1.176 1.234 1.544 1.226 1.188 1.196 7.720 1.197 1.177 1.232 1.684 1.213 1.179 1.186 7.861 1.200 1.177 1.230 1.825 1.199 1.169 1.176 8.001 1.202 1.177 1.226 1.965 1.185 1.159 1.165 8.142 1.203 1.176 1.222 2.106 1.171 1.149 1.155 8.282 1.204 1.174 1.216 2.246 1.156 1.138 1.144 8.422 1.204 1.172 1.210 2.386 1.141 1.127 1.132 8.563 1.203 1.169 1.203 2.527 1.127 1.117 1.120 8.703 1.202 1.167 1.195 2.667 1.113 1.106 1.109 8.844 1.199 1.169 1.187 2.808 1.100 1.096 1.098 8.984 1.196 1.172 1.178 2.948 1.090 1.089 1.089 9.124 1.192 1.176 1.175 3.088 1.088 1.089 1.091 9.264 1.185 1.179 1.175 3.228 1.087 1.090 1.096 9.405 1.189 1.182 1.175 3.369 1.085 1.090 1.100 9.545 1.198 1.187 1.176 3.509 1.084 1.090 1.104 9.686 1.205 1.192 1.181 3.650 1.083 1.091 1.108 9.826 1.213 1.196 1.187 3.790 1.081 1.091 1.112 9.966 1.220 1.200 1.193 3.930 1.080 1.091 1.116 10.106 1.227 1.204 1.199 4.070 1.078 1.091 1.118 10.247 1.233 1.207 1.204 4.211 1.076 1.093 1.120 10.388 1.239 1.213 1.209 4.352 1.074 1.096 1.124 10.528 1.243 1.219 1.213 4.492 1.071 1.098 1.130 10.669 1.246 1.224 1.217 4.633 1.072 1.100 1.136 10.808 1.249 1.229 1.222 4.772 1.073 1.102 1.141 10.949 1.249 1.231 1.223 4.913 1.075 1.104 1.145 11.089 1.250 1.233 1.224 5.053 1.076 1.105 1.149 11.230 1.249 1.233 1.223 5.194 1.078 1.107 1.153 11.370 1.244 1.232 1.221 5.334 1.079 1.108 1.156 11.511 1.234 1.225 1.212 5.475 1.080 1.108 1.158 11.650 1.220 1.208 1.193 5.614 1.082 1.108 1.161 11.791 1.206 1.193 1.176 5.755 1.089 1.110 1.166 11.931 1.195 1.182 1.164 5.895 1.099 1.114 1.175 12.072 1.184 1.171 1.152 6.036 1.109 1.120 1.185 13 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 3. RAOC FQ Margin Decrease in Excess of2% Per 31 EFPD-Cycle 26 Cycle Burnup Maximum Decrease IMWD/MTU) in FQ Ma rain 1009 1.0200 1224 1.0261 1439 1.0353 1654 1.0485 1868 1.0539 2083 1.0516 2298 1.0605 2513 1.0658 2728 1.0683 2942 1.0672 2728 1.0683 2942 1.0672 3157 1.0663 3372 1.0642 3587 1.0527 3801 1.0455 4016 1.0382 4231 1.0318 4446 1.0283 4661 1.0271 4875 1.0239 5090 1.0200 11104 1.0200 11319 1.0219 11534 1.0262 11749 1.0298 11964 1.0324 12178 1.0343 12393 1.0363 12608 1.0370 12823 1.0371 13038 1.0290 13252 1.0278 13467 1.0322 13682 1.0304 13897 1.0281 14112 1.0254 14326 1.0222 14541 1.0200 Note: All cycle bumups outside the range of this table shall use a 1.020 decrease in margin for compliance with Specification 4.2.2.2.e.

Linear interpolation is adequate for intermediate cycle bumups.

14 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 4. Alternate RAOC W(z) at 150, 3000, 5000, 8000 MWD/MTU V. C. Summer-Cycle 26 W(z) W(z) W(z) W(z) W(z) W(z) W(z) W(z)

Core Core 150 3000 5000 8000 150 3000 5000 8000 Height Height MWd/ MWd/ MWd/ MWd/ MWd/ MWd/ MWd/ MWd/

(ft) (ft)

MTU MTU MTU MTU MTU MTU MTU MTU 0.000 1.250 1.400 1.369 1.273 6.177 1.121 1.102 1.101 1.101 0.141 1.252 1.401 1.370 1.274 6.317 1.122 1.104 1.104 1.106 0.281 1.254 1.403 1.371 1.276 6.458 1.123 1.106 1.106 1.111 0.422 1.263 1.408 1.376 1.281 6.597 1.124 1.107 1.108 1.115 0.561 1.278 1.418 1.385 1.292 6.738 1.125 1.108 1.109 1.119 0.702 1.281 1.417 1.383 1.291 6.878 1.125 1.108 1.111 1.122 0.842 1.276 1.408 1.375 1.285 7.019 1.124 1.109 1.112 1.125 0.983 1.269 1.397 1.365 1.278 7.159 1.123 1.108 1.112 1.127 1.123 1.262 1.385 1.353 1.268 7.300 1.122 1.108 1.112 1.130 1.264 1.254 1.371 1.340 1.257 7.439 1.120 1.107 1.112 1.131 1.403 1.245 1.356 1.325 1.245 7.580 1.118 1.105 1.110 1.132 1.544 1.234 1.339 1.309 1.231 7.720 1.115 1.103 1.109 1.132 1.684 1.224 1.322 1.291 1.217 7.861 1.112 1.100 1.107 1.132 1.825 1.213 1.303 1.273 1.202 8.001 1.108 1.097 1.104 1.131 1.965 1.201 1.284 1.255 1.187 8.142 1.103 1.093 1.101 1.129 2.106 1.189 1.264 1.236 1.171 8.282 1.098 1.089 1.098 1.128 2.246 1.177 1.244 1.217 1.155 8.422 1.092 1.085 1.094 1.125 2.386 1.165 1.225 1.198 1.139 8.563 1.086 1.080 1.089 1.122 2.527 1.154 1.205 1.179 1.124 8.703 1.079 1.074 1.084 1.118 2.667 1.142 1.186 1.161 1.109 8.844 1.077 1.074 1.084 1.117 2.808 1.130 1.168 1.143 1.094 8.984 1.077 1.074 1.088 1.118 2.948 1.119 1.151 1.127 1.081 9.124 1.078 1.074 1.091 1.123 3.088 1.112 1.139 1.115 1.067 9.264 1.077 1.073 1.093 1.126 3.228 1.111 1.133 1.109 1.062 9.405 1.077 1.072 1.096 1.131 3.369 1.110 1.132 1.108 1.062 9.545 1.076 1.070 1.099 1.138 3.509 1.110 1.130 1.106 1.063 9.686 1.074 1.069 1.101 1.144 3.650 1.109 1.128 1.104 1.064 9.826 1.073 1.070 1.103 1.150 3.790 1.108 1.126 1.102 1.066 9.966 1.075 1.076 1.110 1.157 3.930 1.107 1.124 1.099 1.068 10.106 1.081 1.084 1.117 1.162 4.070 1.106 1.121 1.096 1.070 10.247 1.085 1.091 1.124 1.167 4.211 1.105 1.119 1.093 1.071 10.388 1.090 1.098 1.130 1.172 4.352 1.104 1.116 1.090 1.073 10.528 1.094 1.104 1.136 1.176 4.492 1.104 1.114 1.087 1.074 10.669 1.098 1.110 1.142 1.178 4.633 1.105 1.111 1.085 1.075 10.808 1.101 1.115 1.147 1.181 4.772 1.106 1.108 1.084 1.077 10.949 1.103 1.119 1.151 1.180 4.913 1.107 1.104 1.083 1.078 11.089 1.105 1.123 1.154 1.183 5.053 1.107 1.101 1.084 1.079 11.230 1.106 1.125 1.155 1.187 5.194 1.107 1.097 1.085 1.080 11.370 1.106 1.126 1.156 1.189 5.334 1.107 1.094 1.086 1.080 11.511 1.099 1.122 1.152 1.185 5.475 1.107 1.093 1.086 1.081 11.650 1.083 1.108 1.138 1.173 5.614 1.111 1.093 1.089 1.081 11.791 1.068 1.096 1.126 1.162 5.755 1.114 1.095 1.092 1.085 11.931 1.057 1.086 1.116 1.153 5.895 1.116 1.098 1.095 1.091 12.072 1.047 1.077 1.107 1.144 6.036 1.119 1.100 1.098 1.096 15 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 5. Alternate RAOC W(z) at 10000, 14000, 20000 MWD/MTU V. C. Summer - Cycle 26 W(z) W(z) W(z) W(z) W(z) W(z)

Core Core 10000 14000 20000 10000 14000 20000 Height Height MWd/ MWd/ MWd/ MWd/ MWd/ MWd/

(ft) (ft)

MTU MTU MTU MTU MTU MTU 0.000 1.195 1.155 1.164 6.177 1.105 1.126 1.178 0.141 1.197 1.158 1.166 6.317 1.111 1.130 1.181 0.281 1.199 1.160 1.168 6.458 1.116 1.135 1.183 0.422 1.206 1.168 1.176 6.597 1.121 1.139 1.184 0.561 1.217 1.182 1.191 6.738 1.126 1.142 1.185 0.702 1.218 1.185 1.195 6.878 1.130 1.145 1.185 0.842 1.213 1.183 1.192 7.019 1.133 1.147 1.184 0.983 1.208 1.180 1.188 7.159 1.136 1.149 1.182 1.123 1.200 1.175 1.183 7.300 1.140 1.151 1.180 1.264 1.191 1.168 1.175 7.439 1.142 1.152 1.176 1.403 1.181 1.161 1.167 7.580 1.142 1.150 1.171 1.544 1.170 1.153 1.159 7.720 1.143 1.150 1.165 1.684 1.159 1.145 1.150 7.861 1.143 1.148 1.159 1.825 1.147 1.136 1.141 8.001 1.143 1.146 1.152 1.965 1.135 1.127 1.131 8.142 1.142 1.143 1.145 2.106 1.123 1.118 1.122 8.282 1.140 1.140 1.137 2.246 1.110 1.108 1.111 8.422 1.138 1.136 1.128 2.386 1.098 1.098 1.100 8.563 1.135 1.131 1.124 2.527 1.086 1.089 1.090 8.703 1.132 1.126 1.124 2.667 1.075 1.080 1.079 8.844 1.129 1.126 1.123 2.808 1.063 1.071 1.070 8.984 1.129 1.129 1.123 2.948 1.053 1.064 1.067 9.124 1.134 1.131 1.123 3.088 1.053 1.065 1.069 9.264 1.137 1.133 1.123 3.228 1.054 1.068 1.072 9.405 1.141 1.135 1.127 3.369 1.055 1.069 1.075 9.545 1.145 1.136 1.133 3.509 1.056 1.072 1.080 9.686 1.150 1.139 1.140 3.650 1.058 1.073 1.088 9.826 1.155 1.147 1.147 3.790 1.061 1.075 1.096 9.966 1.160 1.155 1.153 3.930 1.063 1.077 1.105 10.106 1.165 1.162 1.159 4.070 1.065 1.078 1.111 10.247 1.169 1.169 1.165 4.211 1.066 1.079 1.118 10.388 1.172 1.175 1.171 4.352 1.068 1.080 1.124 10.528 1.174 1.181 1.176 4.492 1.070 1.080 1.130 10.669 1.177 1.186 1.181 4.633 1.072 1.083 1.136 10.808 1.182 1.191 1.185 4.772 1.073 1.087 1.141 10.949 1.187 1.194 1.188 4.913 1.075 1.091 1.145 11.089 1.191 1.196 1.189 5.053 1.076 1.095 1.149 11.230 1.194 1.197 1.188 5.194 1.078 1.098 1.153 11.370 1.195 1.196 1.186 5.334 1.079 1.101 1.156 11.511 1.191 1.190 1.179 5.475 1.080 1.104 1.158 11.650 1.179 1.174 1.160 5.614 1.082 1.107 1.161 11. 791 1.167 1.160 1.144 5.755 1.087 1.110 1.165 11.931 1.157 1.149 1.133 5.895 1.094 1.114 1.170 12.072 1.148 1.138 1.121 6.036 1.100 1.120 1.174 16 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 6. Alternate RAOC FQ Margin Decrease in Excess of2% Per 31 EFPD-Cycle 26 Cycle Burnup Maximum Decrease (MWD/MTU) in FQ Margin 1009 1.0200 1224 1.0365 1439 1.0515 1654 1.0600 1868 1.0574 2083 1.0523 2298 1.0473 2513 1.0491 2728 1.0500 2942 1.0501 3157 1.0490 3372 1.0467 3587 1.0433 3801 1.0388 4016 1.0327 4231 1.0269 4446 1.0209 4661 1.0200 10460 1.0200 10675 1.0244 10890 1.0295 11104 1.0307 11319 1.0316 11534 1.0309 11749 1.0300 11964 1.0289 12178 1.0200 Note: All cycle burn ups outside the range of this table shall use a 1. 020 decrease in margin for compliance with Specification 4.2.2.2.e.

Linear interpolation is adequate for intermediate cycle burnups.

17 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 7. Baseload W(z) at 150, 3000, 5000, 8000 MWD/MTU V. C. Summer - Cycle 26 W(z) W(z) W(z) W(z) W(z) W(z) W(z) W(z)

Core Core 150 3000 5000 8000 150 3000 5000 8000 Height Height MWd/ MWd/ MWd/ MWd/ MWd/ MWd/ MWd/ MWd/

(ft) (ft)

MTU MTU MTU MTU MTU MTU MTU MTU 0.000 1.130 1.113 1.110 1.113 6.177 1.054 1.052 1.051 1.052 0.141 1.130 1.113 1.110 1.113 6.317 1.054 1.051 1.050 1.051 0.281 1.130 1.114 1.110 1.114 6.458 1.056 1.050 1.050 1.051 0.422 1.131 1.115 1.111 1.115 6.597 1.058 1.050 1.050 1.050 0.561 1.132 1.116 1.113 1.117 6.738 1.061 1.050 1.049 1.050 0.702 1.132 1.116 1.113 1.117 6.878 1.063 1.050 1.049 1.051 0.842 1.131 1.116 1.113 1.117 7.019 1.065 1.051 1.049 1.053 0.983 1.129 1.116 1.113 1.117 7.159 1.067 1.053 1.051 1.056 1.123 1.128 1.115 1.113 1.117 7.300 1.069 1.056 1.054 1.058 1.264 1.126 1.115 1.112 1.116 7.439 1.071 1.058 1.056 1.060 1.403 1.124 1.114 1.112 1.115 7.580 1.073 1.060 1.058 1.062 1.544 1.122 1.113 1.111 1.114 7.720 1.074 1.062 1.060 1.063 1.684 1.120 1.112 1.110 1.113 7.861 1.076 1.064 1.062 1.065 1.825 1.117 1.111 1.109 1.112 8.001 1.077 1.066 1.064 1.067 1.965 1.114 1.109 1.108 1.110 8.142 1.079 1.068 1.066 1.069 2.106 1.111 1.108 1.107 1.109 8.282 1.080 1.070 1.068 1.070 2.246 1.108 1.106 1.105 1.107 8.422 1.081 1.072 1.070 1.072 2.386 1.105 1.104 1.104 1.105 8.563 1.082 1.074 1.072 1.073 2.527 1.102 1.103 1.102 1.103 8.703 1.083 1.076 1.074 1.075 2.667 1.099 1.101 1.100 1.101 8.844 1.084 1.077 1.075 1.076 2.808 1.095 1.098 1.098 1.098 8.984 1.085 1.079 1.077 1.077 2.948 1.092 1.096 1.096 1.096 9.124 1.086 1.081 1.079 1.079 3.088 1.088 1.094 1.094 1.093 9.264 1.087 1.082 1.080 1.080 3.228 1.085 1.091 1.092 1.090 9.405 1.087 1.084 1.082 1.081 3.369 1.082 1.089 1.089 1.087 9.545 1.088 1.085 1.083 1.082 3.509 1.080 1.086 1.087 1.084 9.686 1.089 1.086 1.084 1.083 3.650 1.077 1.084 1.084 1.082 9.826 1.090 1.088 1.086 1.084 3.790 1.075 1.082 1.082 1.080 9.966 1.090 1.089 1.087 1.085 3.930 1.074 1.080 1.080 1.079 10.106 1.091 1.091 1.089 1.086 4.070 1.072 1.078 1.079 1.077 10.247 1.091 1.092 1.090 1.087 4.211 1.071 1.076 1.077 1.076 10.388 1.092 1.093 1.091 1.088 4.352 1.069 1.074 1.075 1.074 10.528 1.093 1.094 1.092 1.089 4.492 1.068 1.072 1.073 1.073 10.669 1.093 1.096 1.094 1.090 4.633 1.066 1.071 1.071 1.071 10.808 1.094 1.097 1.095 1.092 4.772 1.064 1.069 1.069 1.070 10.949 1.094 1.098 1.096 1.092 4.913 1.063 1.068 1.067 1.068 11.089 1.095 1.099 1.097 1.093 5.053 1.061 1.066 1.066 1.066 11.230 1.095 1.099 1.098 1.094 5.194 1.059 1.065 1.064 1.065 11.370 1.095 1.100 1.098 1.095 5.334 1.058 1.063 1.062 1.063 11.511 1.095 1.100 1.099 1.095 5.475 1.056 1.061 1.060 1.061 11.650 1.095 1.100 1.098 1.094 5.614 1.054 1.060 1.058 1.059 11.791 1.094 1.100 1.098 1.094 5.755 1.053 1.058 1.056 1.057 11.931 1.094 1.100 1.099 1.095 5.895 1.052 1.056 1.055 1.055 12.072 1.094 1.100 1.099 1.095 6.036 1.053 1.054 1.053 1.053 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 8. Baseload W(z) at 10000, 14000, 20000 MWD/MTU V. C. Summer - Cycle 26 W(z) W(z) W(z) W(z) W(z) W(z)

Core Core 10000 14000 20000 10000 14000 20000 Height Height MWd/ MWd/ MWd/ MWd/ MWd/ MWd/

(ft) (ft)

MTU MTU MTU MTU MTU MTU 0.000 1.118 1.129 1.155 6.177 1.053 1.054 1.069 0.141 1.119 1.129 1.156 6.317 1.052 1.056 1.071 0.281 1.119 1.130 1.156 6.458 1.051 1.058 1.073 0.422 1.120 1.131 1.157 6.597 1.051 1.060 1.075 0.561 1.122 1.132 1.158 6.738 1.053 1.062 1.076 0.702 1.122 1.132 1.158 6.878 1.056 1.064 1.077 0.842 1.122 1.132 1.157 7.019 1.058 1.066 1.078 0.983 1.122 1.132 1.155 7.159 1.060 1.067 1.079 1.123 1.121 1.131 1.153 7.300 1.062 1.069 1.080 1.264 1.121 1.130 1.151 7.439 1.064 1.071 1.080 1.403 1.120 1.128 1.148 7.580 1.065 1.072 1.081 1.544 1.118 1.127 1.145 7.720 1.067 1.073 1.081 1.684 1.117 1.125 1.142 7.861 1.068 1.074 1.081 1.825 1.115 1.122 1.138 8.001 1.070 1.074 1.081 1.965 1.114 1.120 1.134 8.142 1.071 1.075 1.080 2.106 1.111 1.117 1.129 8.282 1.073 1.076 1.080 2.246 1.109 1.114 1.124 8.422 1.074 1.077 1.080 2.386 1.107 1.111 1.118 8.563 1.075 1.077 1.079 2.527 1.105 1.107 1.113 8.703 1.076 1.078 1.079 2.667 1.102 1.104 1.108 8.844 1.077 1.078 1.078 2.808 1.099 1.100 1.102 8.984 1.078 1.078 1.078 2.948 1.096 1.096 1.096 9.124 1.079 1.079 1.077 3.088 1.093 1.092 1.090 9.264 1.080 1.079 1.077 3.228 1.089 1.087 1.085 9.405 1.081 1.079 1.079 3.369 1.086 1.083 1.082 9.545 1.082 1.079 1.082 3.509 1.083 1.081 1.080 9.686 1.083 1.080 1.085 3.650 1.081 1.080 1.078 9.826 1.083 1.080 1.088 3.790 1.079 1.079 1.075 9.966 1.084 1.080 1.090 3.930 1.078 1.077 1.073 10.106 1.085 1.081 1.092 4.070 1.076 1.076 1.071 10.247 1.086 1.082 1.094 4.211 1.075 1.075 1.068 10.388 1.087 1.084 1.096 4.352 1.074 1.073 1.066 10.528 1.088 1.084 1.097 4.492 1.072 1.072 1.063 10.669 1.088 1.085 1.098 4.633 1.071 1.070 1.063 10.808 1.089 1.086 1.100 4.772 1.069 1.068 1.063 10.949 1.090 1.086 1.100 4.913 1.068 1.066 1.063 11.089 1.091 1.086 1.101 5.053 1.066 1.065 1.063 11.230 1.091 1.087 1.101 5.194 1.064 1.063 1.063 11.370 1.092 1.086 1.102 5.334 1.062 1.061 1.062 11.511 1.092 1.087 1.108 5.475 1.060 1.059 1.062 11.650 1.092 1.089 1.113 5.614 1.058 1.057 1.061 11. 791 1.092 1.090 1.112 5.755 1.056 1.056 1.062 11.931 1.092 1.090 1.106 5.895 1.054 1.056 1.064 12.072 1.092 1.091 1.100 6.036 1.054 1.055 1.067 19 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Table 9. BASELOAD FQ Margin Decrease in Excess of 2 % Per 31 EFPD - Cycle 26 Cycle Burnup Maximum Decrease (MWD/MTU) in FQ Mari:iin 794 1.0200 1009 1.0333 1224 1.0432 1439 1.0514 1654 1.0569 1868 1.0595 2083 1.0592 2298 1.0538 2513 1.0496 2728 1.0509 2942 1.0503 3157 1.0474 3372 1.0425 3587 1.0364 3801 1.0297 4016 1.0228 4231 1.0200 Note: All cycle bum ups outside the range of this table shall use a 1. 020 decrease in margin for compliance with Specification 4.2.2.4.e.

Linear interpolation is adequate for intermediate cycle bumups.

20 Revision 0

V. C. Summer Cycle 26 APRIL 2020 Figure 6. RCS Total Flowrate vs. R for Three Loop Operation V. C. Summer - Cycle 26 30.0 29.8 29.6 29.4

~

D..

(.!)

29.2

""'0w Cl)

'E ' ' I

~ 29.0 Acceptable Operation Unacceptable Operation ii: Region

-- Region ni

~

(/)

u 0:::

28.8 28.6 28.4

! i  ! I I i  !  ! i 28.2 J (1.00, 28.36)

I I I I l  !

28.0 0.90 0.95 1.00 1.05 1.10 R = FN-delta-H/1.62[1.0 + 0.3(1.0 - P)]

Measurement Uncertainty of 2.1% for Flow (includes 0.1 % for feedwater venturi fouling) is included in this figure.

21 Revision 0