ML24348A029

Response to NuScale Topical Report Audit Question Number A-NonLOCA.LTR-24

ML24348A029
Person / Time
Site:	05200050
Issue date:	12/13/2024
From:	NuScale
To:	Office of Nuclear Reactor Regulation
Shared Package
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References
LO-176318
Download: ML24348A029 (1)

Text

Response to NuScale Topical Report Audit Question Question Number: A-NonLOCA.LTR-24 Receipt Date: 04/01/2024 Question:

In its response to audit question A-NonLOCA.LTR-7, the applicant indicates that the DHRS scaling analysis is provided in EE-107403. (( 2(a),(c),ECI Please make available for audit (( }} 2(a),(c),ECI for the staff to compare and determine the similarity between the test facility (NIST-2) and NPM-20.

Response

As stated in the response to audit question A-NonLOCA.LTR-7, scaling analysis performed for decay heat removal system (DHRS) testing at the NIST-2 facility is provided in ER-126485, Revision 0, NRELAP5 Applicability to NPM-20 Non-LOCA Analysis. ER-126485 was previously provided in the electronic reading room (eRR) for the non-LOCA topical report. ((

}}2(a),(c),ECI This scaling analysis (( 
}}2(a),(c),ECI is summarized in Section 5.3.7.2.2 of the non-LOCA topical report, as described in response to RSI-17 and provided in markups to the non-LOCA topical report in response to RSI-15 (submitted by NuScale letter LO-145424 dated July 14, 2023 and available in ADAMS at ML23195A091).

In audit question A-NonLOCA.LTR-7, the NRC requested additional information to better understand the scaling analysis in ER-126485. ((

}}2(a),(c),ECI EE-107403 was NuScale Nonproprietary NuScale Nonproprietary

made available in the eRR for the non-LOCA topical report as part of the response to audit question A-NonLOCA.LTR-7. EE-107403 and ER-126485 together provide the scaling analysis (( }}2(a),(c),ECI) results that NuScale has performed for the non-LOCA testing performed at the NIST-2 facility. These two documents remain available in the eRR for the non-LOCA topical report. No changes to the SDAA are necessary. NuScale Nonproprietary NuScale Nonproprietary}}