Document: NUREG-0800
Document ID: 8ebc2326-697f-4c5e-986b-6686da2507d0
Document Type: srp
Title: MINIMUM CONTAINMENT PRESSURE ANALYSIS FOR EMERGENCY CORE
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0636/ML063600405.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.1.5
CFR Part: 
CFR Title: 

Content:
rvatisms to address the uncertainties of post-LOCA plant behavior. Containment minimum pressure directly affects ECCS performance. Calculation and analysis of this parameter, therefore, is part of the ECCS performance evaluation. This regulation assures that, in a LOCA, the ECCS will perform as predicted, limit maximum peak cladding temperature, maximum cladding oxidation, and maximum hydrogen generation; and maintain a coolable geometry. III. REVIEW PROCEDURES The reviewer will select and emphasize material from the procedures described below, as may be appropriate for a particular case. For each area of review specified in Subsection I of this SRP section, the review procedure is identified below. These review procedures are based on the identified SRP acceptance criteria. For deviations from these specific acceptance criteria, the staff should review the applicant’s evaluation of how the proposed alternatives to the SRP criteria provide an acceptable method of complying with the relevant NRC requirements identified in Subsection II. 1. Primary review is of the analyses in the safety analysis report of the minimum containment pressure following a LOCA. The reviewer responsible for SRP Section 6.3 confirms the validity of the applicant's mass and energy release data. The primary 6.2.1.5-5 Revision 3 - March 2007 reviewer evaluates the conservatism of the applicant’s assumptions for the operation of containment heat removal systems and the effectiveness of structural heat sinks by comparing the applicant's calculation approach to either the method outlined in Branch Technical Position 6-2 or RG 1.157, Position C.3.12.1 (consistent with Subsection II of this SRP section). In certain cases, the reviewer may perform confirmatory containment pressure response analyses. In these cases, containment pressure calculated by the primary reviewer is compared to that in the applicant's evaluation of ECCS performance capability for assurance of an appropriately conservative