Document: NUREG-0800
Document ID: eb117be6-f688-40f6-97a8-c91b8e9f8e74
Document Type: srp
Title: CONTAINMENT HEAT REMOVAL SYSTEMS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070457.pdf
Revision Date: 2023-06
Chapter: 6
Section ID: 6.2.2
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Containment Systems Branch (CSB)and Severe Accident Branch (SCSB)1 Secondary - None I. AREAS OF REVIEW The CSBSCSB reviews the information in the applicant's safety analysis report (SAR) 2 concerning containment heat removal under post-accident conditions to assureensure3 conformance with the requirements of General Design Criteria 38, 39, and 40 (Ref. 1, 2 and 3). 4 The types of systems provided to remove heat from the containment include fan cooler systems, spray systems, and residual heat removal systems. These systems remove heat from the containment atmosphere and the containment sump water, or the water in the containment wetwell. The CSBSCSB review includes the following analyses and aspects of containment 5 heat removal system designs: 1. Analyses of the consequences of single component malfunctions. 2. Analyses of the available net positive suction head (NPSH) to the containment heat removal system pumps. 3. Analyses of the heat removal capability of the spray water system. 4. Analyses of the heat removal capability of fan cooler heat exchangers. DRAFT Rev. 5 - April 1996 6.2.2-2 5. The potential for surface fouling of fan cooler, recirculation, and residual heat removal heat exchangers, and the effect on heat exchanger performance. 6. The design provisions and proposed program for periodic inservice inspection and operability testing of each system or component. 7. The design of sumps and water sources for emergency core cooling and containment spray systems, including an assessment for potential loss of long-term cooling capability due to loss-of-coolant accident (LOCA) generated debris effects such as debris screen 6 blockage and pump seal failure. 8. The effects of debris such as thermal insulation on recirculating fluid systems. Review Interfaces7 The CSBSCSB will coordinate other branch evaluations that interface with the overall review of 8 the containment heat removal systems as follows: A. the Auxiliary Systems