ML23067A216

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NRR E-mail Capture - RAI for North Anna, 1 & 2, Surry 1 & 2, Millstone, 2 & 3, Request for Approval of App. F Fleet Report DOM-NAF-2-P, Qual of the Framatome ORFEO-GAIA and ORFEO-NMGRID CHF Correlations in the Dominion VIPRE-D Computer Code
ML23067A216
Person / Time
Site: Millstone, Surry, North Anna  Dominion icon.png
Issue date: 03/07/2023
From: Ed Miller
NRC/NRR/DORL/LPL2-1
To: Ed Miller
NRC/NRR/DORL/LPL2-1
References
Download: ML23067A216 (3)


Text

From:

Ed Miller Sent:

Tuesday, March 7, 2023 3:55 PM To:

Ed Miller

Subject:

RAI for DOM-NAF-2-P, Appendix F Attachments:

Draft RAI for VIPRE Code Appendix F Review R2.docx

Shayan, By letter dated December 19, 2022 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML22353A620) Dominion Energy submitted to the U.S. Nuclear Regulatory Commission (NRC), a request for review and approval of Appendix F to Fleet Report DOM-NAF-2-P. Appendix F addresses Qualificaiton of the Framatome ORFEO-GAIA and ORFEO-NMGRID CHF Correlations in the Dominion Energy VIPRE-D Computer Code.

The NRC staff has reviewed the information submitted and needs additional information to complete its review and approval of the licensees submittal. These requests for additional (RAIs) are attached to this email and are released formally with a 30-day response period (March 10, 2023) requested.

Ed Miller (301) 415-2481

Hearing Identifier:

NRR_DRMA Email Number:

1987 Mail Envelope Properties (SA1PR09MB7487DB6E96B320F10F1458C1E9B79)

Subject:

RAI for DOM-NAF-2-P, Appendix F Sent Date:

3/7/2023 3:54:53 PM Received Date:

3/7/2023 3:54:00 PM From:

Ed Miller Created By:

Ed.Miller@nrc.gov Recipients:

"Ed Miller" <Ed.Miller@nrc.gov>

Tracking Status: None Post Office:

SA1PR09MB7487.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 771 3/7/2023 3:54:00 PM Draft RAI for VIPRE Code Appendix F Review R2.docx 18816 Options Priority:

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DRAFT REQUEST FOR ADDITIONAL INFORMATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION APPENDIX F TO FLEET REPORT COM-NAF-2-P VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2 SURRY POWER STATION UNITS 1 AND 2 MILLSTONE POWER STATION UNITS 2 AND 3 EPID: L-2022-LLT-0003 By letter dated December 19, 2022, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML22353A620), Dominion Energy (the licensee), submitted a request for review and approval of Appendix F to Fleet Report DOM-NAF-2-P to the U.S. Nuclear Regulatory Commission (NRC). The appendix addresses qualification of the Framatome ORFEO-GAIA and ORFEO-NMGRID critical heat flux correlations.

The NRC has determined that the following additional information is necessary to complete its review and make a regulatory decision.

1. To enable the NRC staff to independently verify the data evaluations that were performed to benchmark and qualify the VIPRE-D/ORFEO-GAIA and VIPRE-D/ORFEO-NMGRID code/correlation pairs in the Appendix F to the TR, please provide the dataset that was used to perform the benchmark for the Framatome ORFEO-GAIA and ORFEO-NMGRID Critical Heat Flux (CHF) correlations.