ML25034A064
| ML25034A064 | |
| Person / Time | |
|---|---|
| Site: | 99902041, PROJ0728 |
| Issue date: | 02/12/2025 |
| From: | Licensing Processes Branch |
| To: | |
| Otto N, NRR/DORL/LLPB | |
| Shared Package | |
| ML25031A415 | List: |
| References | |
| EPID L-2024-NTR-0000 ANP-10354P, Rev. 0 | |
| Download: ML25034A064 (1) | |
Text
OFFICIAL USE ONLY - PROPRIETARY INFORMATION OFFICIAL USE ONLY - PROPRIETARY INFORMATION REGULATORY AUDIT REPORT FOR FRAMATOME INC.
TOPICAL REPORT ANP-10354P, REVISION 0, SINGLE-PHASE COMPUTATIONAL FLUID DYNAMICS FOR FUEL ASSEMBLY CHARACTERIZATION PROJECT NO. 728 (EPID L-2024-NTR-0000)
1.0 BACKGROUND
By letter dated May 22, 2024 (Agencywide Documents Access and Management System (ADAMS) Package Accession No. ML24143A171), Framatome Inc. (Framatome) submitted Topical Report (TR) ANP-10354P, Single-phase Computational Fluid Dynamics (CFD) for Fuel Assembly Characterization, to the U.S. Nuclear Regulatory Commission (NRC) for review and approval. The NRC staff proposed an audit to increase efficiency in the review.
2.0 REGULATORY AUDIT OBJECTIVES The objectives of the audits were to increase review process efficiency through direct interaction with Framatomes technical experts. More specifically, the audits allowed the NRC staff to have extended discussions on the TRs, examine supportive documentation, and identify those areas of the review that need additional focus.
The NRC and Framatome audit participants are provided below.
NRC Participants Name Affiliation Noushin Amini NRC Joshua Kaizer NRC Demetrius Murray NRC Ngola Otto NRC Framatome Participants Name Affiliation Jerald Holm Framatome Kenneth Greene Framatome Anca Hatman Framatome Philippe Bellanger Framatome Maxime Bezard Framatome Michelle Guzzardo Framatome Camila Freitas Matozinhos Framatome
OFFICIAL USE ONLY - PROPRIETARY INFORMATION OFFICIAL USE ONLY - PROPRIETARY INFORMATION Name Affiliation Elodie Mery De Montigny Framatome Markus Rehm Framatome Gabriel Tomaz Framatome 3.0 REGULATORY AUDIT BASES Regulatory guidance for the review of fuel system materials and designs and adherence to Title 10 of the Code of Federal Regulations, Appendix A to Part 50, General Design Criteria 10, Reactor Design, is provided in NUREG-0800, Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants (SRP), Section 4.4, Thermal and Hydraulic Design. In accordance with SRP Section 4.4, the objectives of the thermal and hydraulic designs safety review are to provide reasonable assurance that there should be a 95-percent probability at the 95-percent confidence level that a hot fuel rod in the reactor core will not experience a departure from nucleate boiling or a transition condition during normal operation or anticipated operational occurrences.
4.0 DISCUSSION The NRC conducted an in-person audit at the Framatome facilities in Lynchburg, VA beginning on October 21 and exiting on October 24, 2024. The audit focused on ensuring the NRC staff had the appropriate understanding of the material presented in the TR. No regulatory decisions were made. Any information exchanged that the NRC staff believed was necessary to achieve the regulatory conclusion will be formally requested in a Request for Additional Information (RAI).
During the audit, Framatome staff provided and overview of the TR and clarifications regarding the questions asked by NRC staff. The NRC staff were also provided access to and reviewed several documents during the audit. Throughout the 4-day audit, both sides engaged in dialogue and discussion of topics covered in the TR. The audit concluded in the afternoon of October 24, 2024, with an exit meeting, in which action items and expected RAI questions, and potential limitations and conditions for TR ANP-10354P were discussed.
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OFFICIAL USE ONLY - PROPRIETARY INFORMATION OFFICIAL USE ONLY - PROPRIETARY INFORMATION
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5.0 CONCLUSION
The audit accomplished the objectives listed in Section 2.0 by allowing direct interaction with Framatomes technical experts. The NRC staff participants were able to obtain clarification on multiple questions and examine calculation notes and supporting documentation.