Document: NUREG-0800
Document ID: 577b52cf-90e2-467e-8165-a1ce02957947
Document Type: srp
Title: REACTOR WATER CLEANUP SYSTEM (BWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070438.pdf
Revision Date: 2023-06
Chapter: 5
Section ID: 5.4.8
CFR Part: 
CFR Title: 

Content:
egenerative heat exchanger effluent temperature exceeds the resin operating temperature limits. c. Provisions for automatically maintaining flow through filter/ demineralizer units in the event system flow decreases to a point where the bed may drop from the septum. d. Provisions for monitoring resin transfers to assure ensure transfers are complete and design considerations are incorporated to eliminate resin traps. e. Provisions for venting cleanup system components during drain, fill, and air- mixing operations. f. Provisions for removing resin particles from cleanup system product water to prevent resins from entering the reactor system. 2. CMEBEMCB reviews the system capacity and processing flexibility and considers the 62 following: a. The process equipment, resin types, and bed volumes compared to with those for similar reactors and the RWCS capability compared towith the guidelines of 63 Regulatory Guide 1.56 (reference 3).64 b. The design flows and temperatures through the system to assure ensure that criteria for outlet temperature relative to resin temperature are met. DRAFT Rev. 3 - April 1996 5.4.8-10 c. The RWCS capability to process surplus refueling water prior to storage in the refueling water storage tanks or the condensate storage tanks. d. Redundant or parallel components which will permit cleanup, if required, during periods of equipment downtime or single active component failure. 3. CMEBThe EMCB coordinates with MEBthe EMEB in the review of the quality group 65 66 and seismic design classification of the system and compares the design to the guidelines of Regulatory Guides 1.26 (reference 1) and 1.29 (reference 2) to assure ensure 67 68 conformance with Acceptance Criterion II.3, above. 4. CMEBThe EMCB reviews the instrumentation and controls for the reactor water 69 cleanup system to assure ensure that monitors are provided for: a. Conductivity of demineralizer effluent. b. Temperature and conductivity of demineralizer influent. c.