Document: NUREG-0800
Document ID: 243e1ce7-857c-48e4-9eb7-6125311da9be
Document Type: srp
Title: RESIDUAL HEAT REMOVAL (RHR) SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070437.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.7
CFR Part: 
CFR Title: 

Content:
e is discussed below. The residual heat removal (RHR) system removes core decay heat and provides long-term core cooling following the initial phase of reactor cooldown. The scope of review of the RHR system for the plant included piping and instrumentation diagrams, equipment layout drawings, failure modes and effects analysis, and design performance specifications for essential components. The review has included the applicant's proposed design criteria DRAFT Rev. 4 - April 1996 5.4.7-16 and design bases for the RHR system and histhe analysis of the adequacy of those 123 criteria and bases and the conformance of the design to these criteria and bases. The staff concludes that the design of the Rresidual Hheat Rremoval Ssystem is 124 acceptable and meets the requirements of General Design Criteria 2, 4, 5, 19, and 34 and 10 CFR 50.34(f)(2)(xxvi) . This conclusion is based on the following: 125 (1) The applicant has met the General Design Criterion 2 with respect to position C-2 of Regulatory Guide 1.29 concerning the seismic design of systems, structures and components (SSCs) whose failure could cause an unacceptable reduction in 126 the capability of the residual heat removal system. (2) The applicant has met the General Design Criterion 4 with respect to dynamic effects associated flow instabilities and loads (e.g., water hammer). (3) The applicant has met the requirements of General Design Criterion 5 with respect to sharing of structure, systems and componentsSSCs by demonstrating 127 that such sharing does not significantly impair the ability of the Rresidual Hheat Rremoval Ssystem to perform its safety function including, in the event of an 128 129 accident to one unit, an orderly shutdown and cooldown of the remaining units. (4) The applicant has met General Design Criterion 19 with respect to the main control room requirements for normal operations and shutdown and General Design Criterion 34 which specifies requirements for the residual heat removal system