Document: NUREG-0800
Document ID: 73148264-0cb4-4b1b-8586-3105a0a46c78
Document Type: srp
Title: REACTOR WATER CLEANUP SYSTEM (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0631/ML063190009.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.8
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of chemical engineering issues Secondary - None I. AREAS OF REVIEW At the construction permit (CP), standard design certification, or combined license (COL) stage of review, the information in the applicant's safety analysis report (SAR) is reviewed in the following specific areas. At the operating license (OL) or COL stage of review, the review consists of confirming the design accepted at the CP or standard design certification stage and evaluating the adequacy of the applicant's technical specifications. The specific areas of review are as follows: 1. The design of components, design features that influence system availability and reliability, and interconnections with the reactor primary coolant and radwaste systems are reviewed. Removal of chemical impurities and fission products by the reactor water cleanup system (RWCS) is considered. The means for isolating the RWCS from the reactor system following liquid poison injection, holding filter and demineralizer beds in place if system flow is decreased, straining resins from return flows to the primary system, component venting, and resin transfer are reviewed. 5.4.8-2 Revision 3 - March 2007 2. The component design parameters for flow, temperature, pressure, heat removal capability, and impurity removal capability are reviewed to ensure the system capacity will meet the reactor coolant specifications. 3. The quality group and seismic design classification are reviewed. 4. The instrumentation and process controls are reviewed to ensure proper system operation and system isolation, when necessary. The review will include instrumentation for (a) automatic system isolation to prevent removal of liquid poison in the event of standby liquid control system actuation and to prevent damage to the filter/demineralizer resins, and (b) monitoring impurity removal (conductivity measurements), differential pressure across pressure-sensitive components,