ML21070A384
| ML21070A384 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 03/11/2021 |
| From: | Haselden R Dominion Energy South Carolina, South Carolina Public Service Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 20-193B | |
| Download: ML21070A384 (27) | |
Text
V.C. Sum m er Nuclear Station Bradh am Blvd & Hwy 215, Jenkinsvil le, SC 29065 Mailing Addres s:
!51e
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Dominion Energy P.O. Box 88, Jenkinsvil le, SC 29065 Domin ion Energy.com March 11, 2021 ATTN: Document Control Desk Serial No.: 20-193B US Nuclear Regulatory Commission VCS LIC/HK: Rev 0 Washington , D.C . 20555-001 Docket No.: 50-395 License No.: NPF-12 DOMINION ENERGY SOUTH CAROLINA (DESC)
VIRGIL C. SUMMER NUCLEAR STATION (VCSNS) UNIT 1 CORE OPERA TING LIMITS REPORT FOR CYCLE 26, REVISION 2 In accordance with Section 6.9.1.11 of the VCSNS Technical Specifications, DESC, acting for itself and as an agent for South Carolina Public Service Authority, hereby submits Revision 2 of the Core Operating Limits Report (COLR) for Cycle 26 . Revision 2 was developed to correct an error in Table 2, RAOC W(z) at 10000, 14000, 20000 MWD/MTU. This report supersedes the letter dated November 2, 2020 (SN-20-193A, ML20311A131 ).
Should you have any questions, please call Michael Moore at (803) 345-4752 .
Robin R. Haselden Director, Nuclear Station Safety and Licensing V.C . Summer Nuclear Station
Enclosure:
Core Operating Limits Report for Cycle 26, Revision 2 Commitments contained in this letter: None cc: (Without Enclosures Unless Indicated)
G. J. Lindamood - Santee Cooper L. Dudes - NRC Thomas Vaughn - NRC NRC Resident Inspector
DOMINION ENERGY SOUTH CAROLINA VIRGIL C. SUMMER NUCLEAR STATION UNITl CORE OPERATING LIMITS REPORT FOR CYCLE26 REVISION2 FEBRUARY 2021
LIST OF EFFECTIVE PAGES PAGE REVISION 1 0 11 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 1 13 2 14 1 15 1 16 1 17 1 18 1 19 1 20 1 21 1
Table of Contents Section Page 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 - Fli-1 (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 of 2 % 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 RevisionO
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 FEBRUARY 2021 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) 1 Revision0
V. C. Summer Cycle 26 FEBRUARY 2021 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 I.
The EOL/ARO/RTP-MTC shall be less negative than -4.8xl0 4 Lik/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 Lik/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. l. l .3b limit of
-4. Ix10* 4 Lik/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 FEBRUARY 2021 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):
forP > 0.5 fRTP FQ (Z) s _Q_ X K(Z) forP::; 0.5 where: p = ThermalPower 0.5 Rated Thermal Power 2.5.1 Ff P =2.45 2.5.2 K(z) is provided in Figure 4.
3 Revision 0
V. C. Summer Cycle 26 FEBRUARY 2021 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 burnup 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)BL 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)BL versus core height for bumups in the range of O 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 burnups that are outside the range of Table 9.
2.6 RCS Flow Rate and Nuclear Enthalpy Rise Hot Channel Factor - F~ (Specification 3.2.3):
where: p = ThermalPower Rated Thermal Power 2.6.1 F:J" = 1.62 2.6.2 PFLili = 0.3 4 Revision 0
V. C. Summer Cycle 26 FEBRUARY 2021 2.6.3 The Acceptable Operation Region from the combination of Reactor Coolant System total flow and R is provided in Figure 6. Total RCS flow rate calculation is presented in Reference 3.
- 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, Up,m, to be applied to the Nuclear Enthalpy Rise Hot Channel Factor pNMI shall be calculated by the following formula:
Ut,.H UFt.H = 1.0 + - -
100.0 where: U t.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 F Q(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 5 Revision 0
V. C. Summer Cycle 26 FEBRUARY 2021 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 FNilH shall be calculated by the following formula:
UFilli = U FLIHm where: U FMim = Base FllH 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 Fq(z) shall be calculated by the following formula:
where: Uqu = Base Fq 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 FEBRUARY 2021 Figure 1. Moderator Temperature Coefficient Versus Power Level V. C. Summer - Cycle 26 1.00 0.90 Unacceptable Operation 0.80 u.
0
- ii:
- ii: 0.70
<l
"'o C
Cl>
- c:;
ii=Cl>
0.60 Acceptable
\
Operation 0
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0.50
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E 0.40
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I-s..
0
'ECl> 0.30 "C
0 0.20 \
0.10 \
0.00 0 10 20 30 40 50 60 70 80 90
\100 Percent of Rated Thermal Power 7 Revision 0
V. C. Summer Cycle 26 FEBRUARY 2021 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
,ij I (0.53, 226) I 220 210
,, - I I
,ij II" IA 200 ~ I
~ I (1.0, 194) -
190 ,,,~ "-
180 170
, ,ij BANKC ,
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80 , ,ij 70 II" BANKO 1 ..
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10
," (0.048, 0) I
"' I 0 "' I I I 0.0 0.1 0.2 0.3 OA 0.5 0.6 0.7 0.8 0.9 1.0 Fraction Of Rated Thermal Power 8 Revision 0
V. C. Summer Cycle 26 FEBRUARY 2021 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
, \,
J J Unacceptable J I \ Unacceptable J Q) 80 I \
~ I \
a.
iii E
Q) I J I Acceptable I '\
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0
(-22, 50)
I (+20, 50) I Q)
- a. 40 20 0
-40 -30 -20 -10 0 10 20 30 40 Axial Flux Difference (% L'll) 9 Revision 0
V. C. Summer Cycle 26 FEBRUARY 2021 Figure 4. K(z) - Normalized FQ(Z) as a Function of Core Height V. C. Summer - Cycle 26 1.10 .....--..--..--..--.....-.......-.......--,--~--.----.-~--,.--...,........,,........,~---..--.......--~
I'i .il i.1 1
! 1 i
0 .90 l---i--+--+-+-+--+--+--+--+--+---+--+--+--+~----1----lf---+--+--+-+-+--+---I 0.80 l-----+--+--+---l---+---+-----l--+---+--+-----J..--+-+----l----lf-----+---+---1--.......--1
-..J w
0.70 a.
-IC I-
- a
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JI,..
0 z
~
N 0.40 0.30 t---t---t---!---t---t----t-----+--t--t-----t---t-----t--t----t--11---J---t-----!---t----;----!
0.20 l--+--+--+-+-+--+--+--+--+--+---+--+--+--+~----lf---f---+--+--+-+-+--i-----1 0.10 1-----'--......---1---1--...--4---'----l--+---.-_;_--1----'--+-+----lf---'---...--+---l---l---+---I
- 0. 00 ,...._....__,__....._........._.___,___,__~.........---i...___..___.__.,___._____.____...,___..,___,.___....__..___....._.........-'---'
0 2 4 6 8 10 12 Bottom Core Height (Feet) Top 10 Revision 0
V. C. Summer Cycle 26 FEBRUARY 2021 Figure 5. Axial Flux Difference Limit as a Function of Rated Thermal Power (Alternate RAOC)
V. C. Summer - Cycle 26 120 I (-6, 1oo) I I (+4, 100)1 100 I ~
~ Unacceptable
~
l,..
(l,)
~
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= 80 I
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c+16 so!
40 20 0
-40 -30 -20 -10 0 10 20 30 40 Axial Flux Difference(% ~I) 11 RevisionO
V. C. Summer Cycle 26 FEBRUARY 2021 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 1.276 1.404 1.405 1.299 6.177 1.139 1.108 1.104 1.107 0.141 1.278 1.406 1.406 1.301 6.317 1.145 1.112 1.108 1.116 0.281 1.281 1.407 1.407 1.302 6.458 1.150 1.115 1.113 1.125 0.422 1.290 1.413 1.412 1.308 6.597 1.155 1.119 1.118 1.133 0.561 1.305 1.423 1.422 1.318 6.738 1.159 1.121 1.123 1.140 0.702 1.308 1.422 1.420 1.318 6.878 1.163 1.124 1.128 1.148 0.842 1.303 1.413 1.411 1.311 7.019 1.166 1.126 1.133 1.154 0.983 1.297 1.403 1.402 1.303 7.159 1.169 1.127 1.137 1.161 1.123 1.289 1.392 1.390 1.294 7.300 1.171 1.128 1.141 1.167 1.264 1.281 1.378 1.376 1.282 7.439 1.172 1.129 1.144 1.172 1.403 1.271 1.363 1.361 1.269 7.580 1.173 1.129 1.146 1.176 1.544 1.261 1.347 1.344 1.256 7.720 1.173 1.128 1.148 1.179 1.684 1.250 1.329 1.327 1.241 7.861 1.172 1.127 1.150 1.182 1.825 1.238 1.311 1.308 1.226 8.001 1.170 1.125 1.150 1.184 1.965 1.226 1.292 1.289 1.210 8.142 1.168 1.122 1.151 1.186 2.106 1.213 1.273 1.269 1.194 8.282 1.165 1.119 1.150 1.187 2.246 1.200 1.253 1.249 1.177 8.422 1.161 1.116 1.149 1.187 2.386 1.187 1.234 1.229 1.161 8.563 1.156 1.112 1.147 1.186 2.527 1.175 1.214 1.210 1.145 8.703 1.150 1.107 1.145 1.185 2.667 1.162 1.197 1.191 1.129 8.844 1.147 1.108 1.143 1.185 2.808 1.150 1.183 1.172 1.113 8.984 1.146 1.112 1.141 1.186 2.948 1.142 1.174 1.154 1.099 9.124 1.146 1.117 1.138 1.187 3.088 1.139 1.167 1.145 1.095 9.264 1.144 1.122 1.135 1.186 3.228 1.137 1.162 1.141 1.094 9.405 1.141 1.127 1.140 1.184 3.369 1.134 1.159 1.138 1.093 9.545 1.137 1.132 1.148 1.186 3.509 1.131 1.155 1.135 1.091 9.686 1.134 1.136 1.156 1.194 3.650 1.128 1.151 1.131 1.090 9.826 1.137 1.140 1.163 1.202 3.790 1.124 1.147 1.127 1.089 9.966 1.141 1.142 1.171 1.210 3.930 1.121 1.142 1.123 1.089 10.106 1.146 1.144 1.177 1.218 4.070 1.117 1.137 1.119 1.089 10.247 1.150 1.144 1.184 1.225 4.211 1.116 1.132 1.114 1.088 10.388 1.154 1.145 1.189 1.231 4.352 1.115 1.127 1.109 1.088 10.528 1.158 1.148 1.194 1.236 4.492 1.115 1.121 1.105 1.088 10.669 1.161 1.152 1.197 1.240 4.633 1.114 1.115 1.102 1.087 10.808 1.164 1.156 1.200 1.243 4.772 1.113 1.110 1.101 1.086 10.949 1.165 1.159 1.200 1.243 4.913 1.112 1.107 1.098 1.085 11.089 1.166 1.161 1.202 1.245 5.053 1.113 1.104 1.096 1.085 11.230 1.167 1.162 1.202 1.245 5.194 1.114 1.101 1.094 1.084 11.370 1.166 1.162 1.197 1.242 5.334 1.114 1.098 1.090 1.082 11.511 1.158 1.156 1.184 1.234 5.475 1.114 1.094 1.088 1.081 11.650 1.140 1.141 1.166 1.220 5.614 1.115 1.093 1.089 1.082 11.791 1.124 1.127 1.152 1.205 5.755 1.119 1.095 1.091 1.083 11.931 1.113 1.117 1.142 1.195 5.895 1.127 1.099 1.095 1.089 12.072 1.102 1.107 1.132 1.184 6.036 1.133 1.104 1.099 1.098 12 Revision 1
V. C. Summer Cycle 26 FEBRUARY 2021 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 1.247 1.195 1.206 6.177 1.113 1.128 1.194 0.141 1.249 1.197 1.208 6.317 1.121 1.135 1.202 0.281 1.251 1.200 1.210 6.458 1.129 1.142 1.209 0.422 1.257 1.208 1.218 6.597 1.136 1.148 1.216 0.561 1.268 1.222 1.232 6.738 1.143 1.154 1.221 0.702 1.269 1.225 1.236 6.878 1.150 1.159 1.226 0.842 1.264 1.222 1.232 7.019 1.156 1.164 1.230 0.983 1.258 1.218 1.228 7.159 1.161 1.168 1.232 1.123 1.250 1.213 1.222 7.300 1.166 1.172 1.235 1.264 1.240 1.206 1.214 7.439 1.171 1.175 1.236 1.403 1.229 1.198 1.205 7.580 1.173 1.176 1.234 1.544 1.217 1.189 1.196 7.720 1.176 1.177 1.233 1.684 1.204 1.180 1.186 7.861 1.178 1.178 1.230 1.825 1.191 1.170 1.176 8.001 1.179 1.177 1.227 1.965 1.177 1.160 1.166 8.142 1.180 1.176 1.222 2.106 1.163 1.150 1.155 8.282 1.180 1.175 1.217 2.246 1.149 1.140 1.144 8.422 1.179 1.172 1.210 2.386 1.135 1.128 1.132 8.563 1.178 1.169 1.203 2.527 1.121 1.118 1.121 8.703 1.175 1.167 1.196 2.667 1.107 1.107 1.109 8.844 1.175 1.169 1.187 2.808 1.094 1.097 1.098 8.984 1.178 1.173 1.179 2.948 1.084 1.089 1.089 9.124 1.184 1.176 1.175 3.088 1.081 1.089 1.091 9.264 1.192 1.179 1.175 3.228 1.080 1.090 1.096 9.405 1.200 1.183 1.175 3.369 1.079 1.090 1.100 9.545 1.209 1.188 1.176 3.509 1.079 1.090 1.104 9.686 1.218 1.192 1.181 3.650 1.080 1.091 1.108 9.826 1.226 1.197 1.187 3.790 1.081 1.091 1.112 9.966 1.234 1.201 1.193 3.930 1.082 1.091 1.116 10.106 1.241 1.205 1.199 4.070 1.082 1.092 1.118 10.247 1.247 1.208 1.204 4.211 1.082 1.093 1.120 10.388 1.254 1.214 1.209 4.352 1.083 1.096 1.124 10.528 1.258 1.220 1.214 4.492 1.083 1.098 1.130 10.669 1.262 1.225 1.218 4.633 1.083 1.100 1.136 10.808 1.265 1.229 1.222 4.772 1.083 1.102 1.141 10.949 1.265 1.232 1.224 4.913 1.083 1.104 1.145 11.089 1.266 1.234 1.224 5.053 1.083 1.106 1.149 11.230 1.266 1.234 1.223 5.194 1.083 1.107 1.153 11.370 1.260 1.233 1.221 5.334 1.082 1.108 1.156 11.511 1.247 1.226 1.213 5.475 1.082 1.108 1.158 11.650 1.231 1.209 1.194 5.614 1.082 1.109 1.161 11.791 1.217 1.194 1.177 5.755 1.087 1.110 1.166 11.931 1.206 1.183 1.165 5.895 1.096 1.114 1.175 12.072 1.195 1.172 1.152 6.036 1.105 1.120 1.185 13 Revision2
V. C. Summer Cycle 26 FEBRUARY 2021 Table 3. RAOC FQ Margin Decrease in Excess o f23/40 P er 31 EFPD - C*v cle 26 Cycle Burnup Maximum Decrease (MWD/MTU) in FQ Margin 1009 1.0200 1224 1.0347 1439 1.0490 1654 1.0508 1868 1.0541 2083 1.0520 2298 1.0580 2513 1.0674 2728 1.0695 2942 1.0703 3157 1.0677 3372 1.0619 3587 1.0465 3801 1.0356 4016 1.0259 4231 1.0200 5305 1.0200 5520 1.0204 5735 1.0218 5949 1.0222 6164 1.0222 6379 1.0218 6594 1.0210 6809 1.0200 11319 1.0200 11534 1.0250 11749 1.0298 11964 1.0323 12178 1.0338 12393 1.0354 12608 1.0359 12823 1.0359 13038 1.0288 13252 1.0276 13467 1.0320 13682 1.0302 13897 1.0280 14112 1.0253 14326 1.0221 14541 1.0200 Note: All cycle burnups 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.
14 Revision 1
V. C. Summer Cycle 26 FEBRUARY 2021 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 1.202 1.369 1.346 1.238 6.177 1.123 1.103 1.101 1.099 0.141 1.205 1.370 1.347 1.239 6.317 1.125 1.105 1.104 1.104 0.281 1.207 1.372 1.348 1.241 6.458 1.127 1.107 1.106 1.108 0.422 1.217 1.378 1.354 1.247 6.597 1.128 1.109 1.109 1.113 0.561 1.232 1.388 1.363 1.257 6.738 1.129 1.110 1.110 1.117 0.702 1.236 1.387 1.362 1.257 6.878 1.129 1.110 1.112 1.120 0.842 1.232 1.379 1.354 1.251 7.019 1.129 1.111 1.113 1.123 0.983 1.227 1.370 1.345 1.244 7.159 1.129 1.111 1.113 1.126 1.123 1.221 1.359 1.334 1.236 7.300 1.128 1.110 1.114 1.129 1.264 1.214 1.346 1.321 1.225 7.439 1.126 1.109 1.113 1.130 1.403 1.206 1.332 1.307 1.214 7.580 1.124 1.108 1.112 1.131 1.544 1.197 1.316 1.291 1.201 7.720 1.122 1.106 1.111 1.131 1.684 1.188 1.300 1.275 1.188 7.861 1.118 1.103 1.109 1.131 1.825 1.179 1.282 1.258 1.174 8.001 1.115 1.100 1.106 1.131 1.965 1.171 1.265 1.240 1.160 8.142 1.110 1.097 1.103 1.130 2.106 1.162 1.246 1.222 1.145 8.282 1.105 1.093 1.100 1.128 2.246 1.153 1.228 1.203 1.130 8.422 1.099 1.089 1.096 1.126 2.386 1.144 1.210 1.185 1.115 8.563 1.093 1.083 1.091 1.123 2.527 1.136 1.192 1.167 1.101 8.703 1.086 1.078 1.086 1.120 2.667 1.128 1.174 1.150 1.088 8.844 1.079 1.076 1.085 1.116 2.808 1.119 1.157 1.132 1.075 8.984 1.077 1.076 1.087 1.118 2.948 1.112 1.142 1.116 1.065 9.124 1.079 1.079 1.091 1.123 3.088 1.112 1.135 1.111 1.061 9.264 1.079 1.081 1.093 1.126 3.228 1.113 1.132 1.110 1.061 9.405 1.078 1.082 1.096 1.131 3.369 1.113 1.131 1.108 1.061 9.545 1.078 1.082 1.100 1.138 3.509 1.114 1.130 1.106 1.062 9.686 1.076 1.082 1.103 1.145 3.650 1.115 1.128 1.104 1.063 9.826 1.074 1.080 1.106 1.151 3.790 1.115 1.126 1.102 1.065 9.966 1.075 1.078 1.108 1.157 3.930 1.115 1.124 1.100 1.068 10.106 1.078 1.079 1.116 1.163 4.070 1.116 1.122 1.097 1.069 10.247 1.082 1.087 1.123 1.168 4.211 1.116 1.120 1.094 1.071 10.388 1.087 1.094 1.129 1.173 4.352 1.115 1.118 1.091 1.072 10.528 1.091 1.100 1.135 1.177 4.492 1.115 1.115 1.088 1.074 10.669 1.095 1.106 1.141 1.179 4.633 1.114 1.113 1.086 1.075 10.808 1.098 1.111 1.146 1.182 4.772 1.113 1.110 1.084 1.076 10.949 1.100 1.115 1.150 1.181 4.913 1.112 1.107 1.084 1.078 11.089 1.102 1.118 1.153 1.182 5.053 1.113 1.104 1.084 1.079 11.230 1.103 1.121 1.154 1.185 5.194 1.114 1.101 1.085 1.080 11.370 1.103 1.122 1.155 1.187 5.334 1.114 1.098 1.086 1.081 11.511 1.096 1.117 1.151 1.184 5.475 1.114 1.094 1.087 1.081 11.650 1.080 1.104 1.137 1.172 5.614 1.115 1.093 1.089 1.082 11.791 1.065 1.091 1.125 1.160 5.755 1.116 1.094 1.092 1.084 11.931 1.055 1.082 1.116 1.151 5.895 1.118 1.098 1.095 1.088 12.072 1.044 1.073 1.107 1.142 6.036 1.120 1.101 1.098 1.094 15 Revision 1
V. C. Summer Cycle 26 FEBRUARY 2021 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 1.223 1.156 1.165 6.177 1.106 1.125 1.178 0.141 1.225 1.158 1.167 6.317 1.112 1.130 1.181 0.281 1.227 1.161 1.169 6.458 1.118 1.135 1.183 0.422 1.234 1.169 1.177 6.597 1.124 1.139 1.184 0.561 1.245 1.183 1.191 6.738 1.129 1.142 1.185 0.702 1.246 1.186 1.195 6.878 1.133 1.145 1.185 0.842 1.241 1.184 1.192 7.019 1.137 1.148 1.184 0.983 1.235 1.181 1.188 7.159 1.141 1.149 1.182 1.123 1.228 1.176 1.183 7.300 1.144 1.151 1.180 1.264 1.218 1.169 1.176 7.439 1.147 1.152 1.177 1.403 1.207 1.162 1.168 7.580 1.148 1.151 1.171 1.544 1.196 1.154 1.159 7.720 1.149 1.150 1.166 1.684 1.184 1.146 1.150 7.861 1.150 1.149 1.160 1.825 1.171 1.137 1.141 8.001 1.150 1.146 1.153 1.965 1.158 1.128 1.131 8.142 1.149 1.144 1.145 2.106 1.144 1.119 1.122 8.282 1.148 1.140 1.137 2.246 1.130 1.109 1.112 8.422 1.146 1.137 1.128 2.386 1.116 1.099 1.101 8.563 1.144 1.132 1.124 2.527 1.103 1.090 1.090 8.703 1.141 1.127 1.124 2.667 1.090 1.081 1.079 8.844 1.137 1.127 1.123 2.808 1.077 1.071 1.070 8.984 1.137 1.129 1.123 2.948 1.065 1.064 1.067 9.124 1.142 1.131 1.123 3.088 1.052 1.065 1.069 9.264 1.147 1.133 1.123 3.228 1.048 1.068 1.072 9.405 1.151 1.136 1.127 3.369 1.048 1.069 1.075 9.545 1.155 1.137 1.133 3.509 1.050 1.071 1.080 9.686 1.159 1.139 1.140 3.650 1.052 1.073 1.087 9.826 1.162 1.147 1.147 3.790 1.055 1.075 1.096 9.966 1.164 1.155 1.153 3.930 1.058 1.077 1.105 10.106 1.165 1.162 1.159 4.070 1.060 1.078 1.111 10.247 1.167 1.169 1.165 4.211 1.062 1.079 1.118 10.388 1.172 1.175 1.171 4.352 1.064 1.080 1.124 10.528 1.178 1.181 1.176 4.492 1.066 1.080 1.130 10.669 1.183 1.186 1.181 4.633 1.069 1.083 1.136 10.808 1.187 1.192 1.185 4.772 1.071 1.087 1.141 10.949 1.191 1.195 1.188 4.913 1.073 1.091 1.145 11.089 1.195 1.197 1.189 5.053 1.075 1.095 1.149 11.230 1.198 1.197 1.188 5.194 1.077 1.098 1.153 11.370 1.199 1.197 1.187 5.334 1.078 1.101 1.156 11.511 1.196 1.190 1.179 5.475 1.080 1.104 1.158 11.650 1.183 1.175 1.161 5.614 1.081 1.107 1.161 11. 791 1.170 1.160 1.144 5.755 1.087 1.110 1.165 11.931 1.161 1.149 1.133 5.895 1.093 1.114 1.170 12.072 1.152 1.139 1.121 6.036 1.100 1.120 1.174 16 Revision 1
V. C. Summer Cycle 26 FEBRUARY 2021 Table 6. Alternate RAOC FQ Margin Decrease in Excess of2% Per 31 EFPD-Cycle 26 Maximum Cycle Burnup Decrease (MWD/MTU) in FQ MarAin 580 1.0200 794 1.0304 1009 1.0469 1224 1.0555 1439 1.0586 1654 1.0588 1868 1.0563 2083 1.0512 2298 1.0465 2513 1.0483 2728 1.0493 2942 1.0494 3157 1.0483 3372 1.0460 3587 1.0425 3801 1.0380 4016 1.0317 4231 1.0258 4446 1.0200 10031 1.0200 10245 1.0215 10460 1.0202 10675 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 l
V. C. Summer Cycle 26 FEBRUARY 2021 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 1.125 1.109 1.106 1.111 6.177 1.055 1.053 1.054 1.053 0.141 1.125 1.109 1.107 1.111 6.317 1.054 1.052 1.052 1.052 0.281 1.126 1.110 1.107 1.112 6.458 1.053 1.051 1.051 1.051 0.422 1.127 1.111 1.108 1.113 6.597 1.053 1.050 1.050 1.050 0.561 1.128 1.112 1.110 1.114 6.738 1.054 1.050 1.049 1.049 0.702 1.128 1.112 1.110 1.115 6.878 1.056 1.048 1.048 1.049 0.842 1.127 1.112 1.110 1.115 7.019 1.058 1.048 1.047 1.052 0.983 1.126 1.112 1.110 1.115 7.159 1.060 1.049 1.049 1.054 1.123 1.125 1.112 1.110 1.115 7.300 1.062 1.052 1.051 1.056 1.264 1.123 1.112 1.110 1.114 7.439 1.064 1.054 1.053 1.058 1.403 1.122 1.111 1.109 1.114 7.580 1.065 1.056 1.055 1.060 1.544 1.120 1.110 1.109 1.113 7.720 1.067 1.058 1.057 1.062 1.684 1.118 1.109 1.108 1.112 7.861 1.069 1.060 1.059 1.064 1.825 1.116 1.108 1.107 1.111 8.001 1.070 1.062 1.061 1.065 1.965 1.113 1.107 1.106 1.109 8.142 1.072 1.064 1.063 1.067 2.106 1.111 1.106 1.105 1.108 8.282 1.073 1.066 1.065 1.069 2.246 1.108 1.104 1.104 1.106 8.422 1.074 1.068 1.067 1.070 2.386 1.105 1.103 1.102 1.104 8.563 1.075 1.069 1.069 1.072 2.527 1.102 1.101 1.101 1.102 8.703 1.077 1.071 1.070 1.073 2.667 1.099 1.099 1.099 1.100 8.844 1.078 1.073 1.072 1.074 2.808 1.096 1.098 1.098 1.098 8.984 1.079 1.075 1.074 1.076 2.948 1.092 1.095 1.096 1.096 9.124 1.080 1.076 1.076 1.077 3.088 1.089 1.093 1.094 1.093 9.264 1.081 1.078 1.077 1.078 3.228 1.086 1.091 1.091 1.090 9.405 1.082 1.079 1.079 1.080 3.369 1.083 1.089 1.089 1.088 9.545 1.083 1.081 1.080 1.081 3.509 1.082 1.087 1.087 1.085 9.686 1.083 1.082 1.082 1.082 3.650 1.080 1.084 1.085 1.082 9.826 1.084 1.084 1.083 1.083 3.790 1.079 1.082 1.082 1.081 9.966 1.085 1.085 1.084 1.084 3.930 1.077 1.081 1.081 1.079 10.106 1.086 1.086 1.086 1.085 4.070 1.076 1.079 1.079 1.078 10.247 1.086 1.088 1.087 1.086 4.211 1.075 1.078 1.078 1.076 10.388 1.087 1.089 1.088 1.087 4.352 1.073 1.077 1.076 1.075 10.528 1.088 1.090 1.090 1.089 4.492 1.072 1.075 1.075 1.073 10.669 1.088 1.091 1.091 1.090 4.633 1.071 1.074 1.073 1.072 10.808 1.089 1.092 1.092 1.091 4.772 1.069 1.072 1.071 1.071 10.949 1.090 1.093 1.093 1.092 4.913 1.068 1.071 1.070 1.069 11.089 1.090 1.094 1.094 1.092 5.053 1.066 1.069 1.068 1.067 11.230 1.090 1.095 1.095 1.093 5.194 1.065 1.067 1.067 1.066 11.370 1.091 1.096 1.096 1.094 5.334 1.063 1.065 1.065 1.064 11.511 1.091 1.096 1.096 1.094 5.475 1.061 1.063 1.063 1.062 11.650 1.090 1.096 1.096 1.094 5.614 1.059 1.061 1.061 1.060 11.791 1.090 1.096 1.096 1.094 5.755 1.058 1.059 1.059 1.058 11.931 1.090 1.096 1.096 1.094 5.895 1.056 1.058 1.058 1.056 12.072 1.090 1.096 1.096 1.094 6.036 1.055 1.055 1.056 1.054 18 Revision 1
V. C. Summer Cycle 26 FEBRUARY 2021 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 1.117 1.128 1.155 6.177 1.054 1.054 1.069 0.141 1.118 1.129 1.155 6.317 1.053 1.055 1.071 0.281 1.118 1.129 1.156 6.458 1.052 1.058 1.073 0.422 1.119 1.130 1.157 6.597 1.051 1.060 1.074 0.561 1.121 1.132 1.158 6.738 1.052 1.062 1.076 0.702 1.121 1.132 1.157 6.878 1.054 1.063 1.077 0.842 1.121 1.132 1.156 7.019 1.056 1.065 1.078 0.983 1.121 1.131 1.155 7.159 1.058 1.067 1.079 1.123 1.120 1.130 1.153 7.300 1.061 1.068 1.080 1.264 1.120 1.129 1.151 7.439 1.062 1.070 1.080 1.403 1.119 1.128 1.148 7.580 1.064 1.071 1.080 1.544 1.118 1.126 1.145 7.720 1.066 1.072 1.080 1.684 1.117 1.125 1.142 7.861 1.067 1.073 1.080 1.825 1.115 1.122 1.138 8.001 1.069 1.074 1.080 1.965 1.113 1.120 1.133 8.142 1.070 1.075 1.080 2.106 1.111 1.117 1.129 8.282 1.071 1.075 1.080 2.246 1.109 1.114 1.124 8.422 1.073 1.076 1.079 2.386 1.107 1.111 1.118 8.563 1.074 1.077 1.079 2.527 1.104 1.107 1.113 8.703 1.075 1.077 1.079 2.667 1.102 1.104 1.108 8.844 1.076 1.078 1.078 2.808 1.099 1.100 1.102 8.984 1.077 1.078 1.078 2.948 1.096 1.096 1.096 9.124 1.078 1.078 1.077 3.088 1.093 1.092 1.090 9.264 1.079 1.079 1.077 3.228 1.090 1.088 1.085 9.405 1.080 1.079 1.080 3.369 1.086 1.084 1.082 9.545 1.081 1.079 1.083 3.509 1.083 1.082 1.080 9.686 1.082 1.079 1.086 3.650 1.081 1.080 1.078 9.826 1.083 1.080 1.088 3.790 1.080 1.079 1.075 9.966 1.084 1.080 1.091 3.930 1.078 1.077 1.073 10.106 1.084 1.082 1.093 4.070 1.077 1.076 1.070 10.247 1.085 1.083 1.095 4.211 1.076 1.075 1.068 10.388 1.086 1.084 1.096 4.352 1.074 1.073 1.065 10.528 1.087 1.085 1.098 4.492 1.073 1.072 1.064 10.669 1.088 1.086 1.099 4.633 1.071 1.070 1.064 10.808 1.089 1.087 1.100 4.772 1.070 1.069 1.063 10.949 1.089 1.087 1.101 4.913 1.068 1.067 1.063 11.089 1.090 1.087 1.101 5.053 1.066 1.065 1.063 11.230 1.091 1.087 1.102 5.194 1.065 1.063 1.063 11.370 1.091 1.087 1.103 5.334 1.063 1.061 1.063 11.511 1.092 1.087 1.108 5.475 1.061 1.059 1.062 11.650 1.091 1.087 1.113 5.614 1.058 1.058 1.061 11.791 1.091 1.091 1.112 5.755 1.056 1.057 1.062 11.931 1.091 1.092 1.108 5.895 1.055 1.056 1.064 12.072 1.092 1.092 1.103 6.036 1.055 1.056 1.067 19 Revision 1
V. C. Summer Cycle 26 FEBRUARY 2021 Table 9. BASELOAD FQ Margin Decrease in Excess of 2 % Per 31 EFPD - Cycle 26 Maximum Cycle Burnup Decrease (MWD/MTU) in FQ Margin 580 1.0200 794 1.0257 1009 1.0416 1224 1.0514 1439 1.0594 1654 1.0648 1868 1.0667 2083 1.0608 2298 1.0538 2513 1.0508 2728 1.0522 2942 1.0506 3157 1.0467 3372 1.0434 3587 1.0374 3801 1.0307 4016 1.0238 4231 1.0200 Note: All cycle burnups 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 burnups.
20 Revision 1
V. C. Summer Cycle 26 FEBRUARY 2021 Figure 6. RCS Total Flowrate vs. R for Three Loop Operation V. C. Summer - Cycle 26 30.00 29.80 29.60 29.40
~
Q.
(!)
-.:I' 29.20 w
0
~
Q)
~
- = 29.00 Acceptable Unacceptable
..2 Operation Region Operation Region LL iii 0
~ 28.80 0
0::
28.60 28.40 I I I (1.00, 28.38) I 28.20 28.00 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 21 Revision I