ML24348A031
| ML24348A031 | |
| Person / Time | |
|---|---|
| Site: | 05200050 |
| Issue date: | 12/13/2024 |
| From: | NuScale |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML24348A006 | List:
|
| References | |
| LO-176318 | |
| Download: ML24348A031 (1) | |
Text
Response to NuScale Topical Report Audit Question Question Number: A-NonLOCA.LTR-25 Receipt Date: 04/15/2024 Question:
(( 2(a),(c) Provide markup to the non-LOCA topical report.
Response
((
}}2(a),(c)
NuScale Nonproprietary NuScale Nonproprietary
(( }}2(a),(c)
Applicability analyses have been performed, as described in the response to audit question A-NonLOCA.LTR-3, comparing the NuScale Power Module (NPM) for the US460 (i.e., NPM-20) to the NPM for the US600 (i.e., NPM-160) and confirm the EM is applicable to the US460.
The phenomena identification and ranking table (PIRT) performed supporting the EM has been reviewed and it has been confirmed that there are no new additional phenomena applicable for the US460, as described in the response to audit question A-NonLOCA.LTR-16. In addition, Section 5.1.4 of the topical report identifies that NRELAP5 assessments against SIET data (TF-1 and TF-2) were used to validate heat transfer through the SG as part of the DHRS loop for non-LOCA transients, with details provided in Section 5.3.5. The discussion in Section 5.3.5 identifies that the detailed validation is provided in Section 7.4 of the LOCA topical report (TR-0516-49422-P, Revision 3). ((
}}2(a),(c) The conclusions based on the results in EC-153070 are consistent with the conclusions discussed in the bulleted list above.
((
}}2(a),(c)
NuScale Nonproprietary NuScale Nonproprietary
(( }}2(a),(c) Therefore, no new analyses are required. No changes to the SDAA are necessary. NuScale Nonproprietary NuScale Nonproprietary}}