ML20246G701
ML20246G701 | |
Person / Time | |
---|---|
Site: | North Anna ![]() |
Issue date: | 03/31/2020 |
From: | Geer J, Lynch D Virginia Electric & Power Co (VEPCO), Westinghouse |
To: | Office of Nuclear Reactor Regulation |
Shared Package | |
ML20246G703 | List: |
References | |
20-115 | |
Download: ML20246G701 (112) | |
Text
Serial No.: 20-115 Docket Nos.: 50-338/339 Enclosure 4 Attachment 3 WCAP-18364-NP, REVISION 1 Virginia Electric and Power Company (Dominion Energy Virginia)
North Anna Power Station Units 1 and 2
I Westinghouse Non-Proprietary Class 3 WCAP-18364-N P March 2020 Revision 1 North Anna Units 1 and 2 Time-Limited Aging Analysis on Reactor Vessel Integrity for Subsequent License Renewal (SLR)
@Westinghouse
- This record was final approved on 3/31/2020 8:40:22 AM. (This statement was added by the PRIME system upon its validation)
Westinghouse Non-Proprietary Class 3 WCAP-18364-NP Revision 1 North Anna Units 1 and 2 Time-Limited Aging Analysis on Reactor Vessel Integrity for Subsequent License Renewal (SLR)
D. Brett Lynch*
RV/CV Design & Analysis Jared L Geer*
Nuclear Operations & Radiation Analysis March 2020 Reviewers: Benjamin E. Mays*
License Renewal, Radiation Analysis, and Nuclear Operations Benjamin W. Amiri*
Nuclear Operations & Radiation Analysis Approved: Lynn A. Patterson*, Manager RV/CV Design & Analysis Laurent P. Houssay*, Manager Nuclear Operations & Radiation Analysis
- Electronically approved records are authenticated in the electronic document management system.
J-Westinghouse Electric Company LLC 1000 Westinghouse Drive Cranberry Township, PA 16066, USA
© 2020 Westinghouse Electric Company LLC All Rights Reserved
- This record was final approved on 3/31/2020 8:40:22 AM. (This statement was added by the PRIME system upon its validation)
Westinghouse Non-Proprietary Class 3 11 RECORD OF REVISION Revision O: Original Issue Revision 1: This revision updates the reference to WCAP-18363-NP to Revision 1, corrects the footnote numbering in Table 2-1, and corrects the description in Section 4.0 of those materials with PTS values which exceed that of North Anna Unit 2, Lower Shell Forging
- 03. Appendix D was added to provide justification for the use of PWROG-17090-NP-A, consistent with the NRC Safety Evaluation.
WCAP-18364-NP March 2020 Revision 1
- This record was final approved on 3/31/2020 8:40:22 AM. (This statement was added by the PRIME system upon its validation)
Westinghouse Non-Proprietary Class 3 iii TABLE OF CONTENTS LIST OF TABLES ....................................................................................................................................... iv LIST OF FIGURES .................................................................................................................................... vii ACRONYMS ............................................................................................................................................. viii EXECUTIVE
SUMMARY
........................................................................................................................... X 1 TIME-LIMITED AGING ANALYSIS ......................................................................................... 1-1 2 CALCULATED FLUENCE ......................................................................................................... 2-1 3 MATERIALPROPERTYINPUT ................................................................................................. 3-1 4 PRESSURIZED THERMAL SHOCK ......................................................................................... 4-1 5 UPPER-SHELF ENERGY ........................................................................................................... 5-1 6 HEATUP AND COOLDOWN PRESSURE-TEMPERATURE LIMIT CURVES ....................... 6-1 6.1 ADJUSTED REFERENCE TEMPERATURES CALCULATION .................................... 6-1 6.2 P-T LIMIT CURVES APPLICABILITY .......................................................................... 6-27 7 SURVEILLANCE CAPSULE WITHDRAWAL SCHEDULES .................................................. 7-1 8 REFERENCES ............................................................................................................................. 8-1 APPENDIX A CREDIBILITY EVALUATION OF THE NORTH ANNA UNITS I AND 2 SURVEILLANCE PROGRAMS .................................................................................... A-1 APPENDIX B EMERGENCY RESPONSE GUIDELINES .................................................................. B-1 APPENDIX C NORTH ANNA UNITS I AND 2 LICENSING BASIS FOR DETERMINING CHEMISTRY FACTOR WHEN SURVEILLANCE DATA IS AVAILABLE ............... C-1 APPENDIX D JUSTIFICATION FOR THE USE OF PWROG-17090-NP-A ...................................... D-1 WCAP-18364-NP March 2020 Revision 1
- This record was final approved on 3/31/2020 8:40:22 AM. (This statement was added by the PRIME system upon its validation)
Westinghouse Non-Proprietary Class 3 iv LIST OF TABLES Table 1-1 Evaluation of Time-Limited Aging Analyses Per the Criteria of 10 CFR 54.3 ............... 1-2 Table 2-1 Calculated Fast Neutron (E > 1.0 MeV) Fluence at the Surveillance Capsule Center for North Anna Unit l ............................................................................................................ 2-4 Table 2-2 Calculated Fast Neutron (E > 1.0 MeV) Fluence at the Surveillance Capsule Center for North Anna Unit 2 ............................................................................................................ 2-5 Table 2-3 North Anna Unit 1 - Maximum Fast Neutron (E > 1.0 Me V) Fluence Experienced by the Pressure Vessel Materials in the Beltline and Extended Beltline Regions ....................... 2-6 Table 2-4 North Anna Unit 2 - Maximum Fast Neutron (E > 1.0 Me V) Fluence Experienced by the Pressure Vessel Materials in the Beltline and Extended Beltline Regions ....................... 2-8 Table 3-1 Best-Estimate Cu and Ni Weight Percent Values, Initial RTNnT Values, and Initial USE Values for the North Anna Unit 1 RPV Beltline and Ext~hded Beltline Materials .......... 3-5 Table 3-2 Best-Estimate Cu and Ni Weight Percent Values, Initial RTNnT Values, and Initial USE Values for the North Anna Unit 2 RPV Beltline and Extended Beltline Materials .......... 3-6 Table 3-3 Initial RTNDT Values for the North Anna Units 1 and 2 Replacement Reactor Vessel Closure Head and Vessel Flange Materials ................................................................................... 3-8 Table 3-4 Calculation of Position 2.1 CF Values for North Anna Unit 1 Surveillance Materials .... 3-8 Table 3-5 Calculation of Position 2.1 CF Values for North Anna Units 1 and 2 Welds with Data from Other Plant Surveillance Programs .................................................................................. 3-9 Table 3-6 Calculation of Position 2.1 CF Values for North Anna Unit 2 Surveillance Materials
.................................. '. .................................................................................................... 3-10 Table 3-7 Summary of the North Anna Unit 1 RPV Beltline, Extended Beltline, and Surveillance Material CF Values based on Regulatory Guide 1.99, Revision 2, Position 1.1 and Position 2.1 .................................................................................................................... 3-11 Table 3-8 Summary of the North Anna Unit 2 RPV Beltline, Extended Beltline, and Surveillance Material CF Values based on Regulatory Guide 1.99, Revision 2, Position 1.1 and Position 2.1 .................................................................................................................... 3-12 Table 4-1 Calculation ofNorthAnna Unit 1 RTPTs Values for 72 EFPY (SLR) at the Clad/Base Metal Interface ........................................................................................................................... 4-3 Table 4-2 Calculation ofNorthAnna Unit 2 RTPTS Values for 72 EFPY (SLR) at the Clad/Base Metal Interface ........................................................................................................................... 4-6 Table 5-1 Predicted USE Values at 72 EFPY (SLR) for North Anna Unit 1 ................................... 5-3 Table 5-2 Predicted USE Values at 72 EFPY (SLR) for North Anna Unit 2 ................................... 5-5 Table 6.1-1 Calculation of the North Anna Unit 1 ART Values at the 1/4T Location for the Reactor Vessel Beltline Materials at 50.3 EFPY ........................................................................... 6-3 WCAP-18364-NP March2020 Revision 1
- This record was final approved on 3/31/2020 8:40:22 AM. (This statement was added by the PRIME system upon its validation)
Westinghouse Non-Proprietary Class 3 V Table 6.1-2 Calculation of the North Anna Unit 1 ART Values at the 3/4T Location for the Reactor Vessel Beltline Materials at 50.3 EFPY ........................................................................... 6-5 Table 6.1-3 Calculation of the North Anna Unit 1 ART Values for the Reactor Vessel Extended Beltline Materials at 50.3 EFPY .................................................................................................... 6-7 Table 6.1-4 Calculation of the North Anna Unit 2 ART Values at the 1/4T Location for the Reactor Vessel Beltline Materials at 52.3 EFPY ........................................................................... 6-9 Table 6.1-5 Calculation of the North Anna Unit 2 ART Values at the 3/4T Location for the Reactor Vessel Beltline Materials at 52.3 EFPY ......................................................................... 6-11 Table 6.1-6 Calculation of the North Anna Unit 2 ART Values for the Reactor Vessel Extended Beltline Materials at 52.3 EFPY .................................................................................................. 6-13 Table 6.1-7 Calculation of the North Anna Unit 1 ART Values at the 1/4T Location for the Reactor Vessel Beltline Materials at 72 EFPY ............................................................................ 6-15 Table 6.1-8 Calculation of the North Anna Unit 1 ART Values at the 3/4T Location for the Reactor Vessel Beltline Materials at 72 EFPY ............................................................................ 6-17 Table 6.1-9 Calculation of the North Anna Unit 1 ART Values for the Reactor Vessel Extended Beltline Materials at 72 EFPY .................................... :................................................................ 6-19 Table 6.1-10 Calculation of the North Anna Unit 2 ART Values at the 1/4T Location for the Reactor Vessel Beltline Materials at 72 EFPY ............................................ :............................... 6-2 l Table 6.1-11 Calculation of the North Anna Unit 2 ART Values at the 3/4T Location for the Reactor Vessel Beltline Materials at 72 EFPY ............................................................................ 6-23 Table 6.1-12 Calculation of the North Anna Unit 2 ART Values for the Reactor Vessel Extended Beltline Materials at 72 EFPY ..................................................................................................... 6-25 Table 6.2-1 Summary of the Limiting ART Values ........................................................................... 6-27 Table 7-1 North Anna Unit 1 Recommended Surveillance Capsule Withdrawal Schedule ............. 7-3 Table 7-2 North Anna Unit 2 Recommended Surveillance Capsule Withdrawal Schedule ............. 7-5 Table 7-3 Comparison of the North Anna Unit 1 Capsule Withdrawal Schedule withASTM E185-82 and the GALL Reports ..................................................................................................... 7-7 Table 7-4 Comparison of the North Anna Unit 2 Capsule Withdrawal Schedule,withASTM E185-82 and the GALL Reports ..................................................................................................... 7-9 Table A-1 Regulatory Guide 1.99, Revision 2, Credibility Criteria ....................... :........................ A-1 Table A.1-1 North Anna Unit 1 Surveillance Capsule Data Scatter about the Best-Fit Line Using All Available Surveillance Data ............................................................................................ A-3 Table A.2-1 North Anna Unit 2 Surveillance Capsule Data Scatter about the Best-Fit Line Using All Available Surveillance Data ............................................................................................ A-6 Table B-1 Evaluation of North Anna Units 1 and 2 ERG Limit Category ...................................... B-1 Table C-1 North Anna Units 1 and 2 Chemistry Factor Licensing Basis History .......................... C-2 WCAP-18364-NP March 2020 Revision 1
- This record was final approved on 3/31/2020 8:40:22 AM. (This statement was added by the PRIME system upon its validation)
Westinghouse Non-Proprietary Class 3 vi Table C-2 Conservatism Check for Position 1.1 for Non-Credible North Anna Unit 1 Surveillance Data ................................................................................................................................. C-4 Table C-3 Conservatism Check for Position 1.1 for Non-Credible North Anna Unit 2 Surveillance Data ................................................................................................................................. C-5 Table D-1 North Anna Units 1 and 2 Reactor Vessel Material which Use PWROG-17090-NP-A Generic Values ................................................................................................................ D-2 WCAP-18364-NP March 2020 Revision 1
- This record was final approved on 3/31/2020 8:40:22 AM. {This statement was added by the PRIME system upon its validation)
Westinghouse Non-Proprietary Class 3 vii LIST OF FIGURES Figure 2-1 North Anna Unit 1 - Axial Boundary of the LOE+ 17 n/cm2 Fast Neutron (E > 1.0 MeV)
Fluence Threshold in the +Z Direction (at 50.3 EFPYand 72 EFPY) ............................ 2-7 Figure2-2 North Anna Unit 2 -Axial Boundary of the l.OE+17 n/cm2 Fast Neutron (E> l.OMeV)
Fluence Threshold in the +Z Direction (at 52.3 EFPY and 72 EFPY) ............................ 2-9 Figure 3-1 RPV Base Metal Material Identifications for North Anna Units 1 and 2 ........................ 3-4 Figure 5-1 Regulatory Guide 1.99, Revision 2, Position 1.2 Predicted Decrease in Upper-Shelf Energy as a Function of Copper and Fluence for North Anna Unit 1 at SLR (72 EFPY)