Document: NUREG-0800
Document ID: 2779d8da-7e49-4277-9495-bf9ec444636f
Document Type: srp
Title: STEAM GENERATOR BLOWDOWN SYSTEM (PWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070602.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.8
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Chemical Engineering Branch (CMEB)Materials and Chemical Engineering Branch (EMCB)1 Secondary - None I. AREAS OF REVIEW At the construction permit (CP) stage, CMEBEMCB reviews the steam generator blowdown 2 system (SGBS), as described in the applicant's safety analysis report (SAR), in the specific areas that follow. At the operating license (OL) stage, the EMCB review consists of confirming the 3 design accepted at the CP stage. 1. 4 CMEBEMCB reviews the SGBS design basis in terms of its ability to remove particulate and 5 dissolved impurities from the steam generator secondary side, thus assisting in maintaining optimum secondary-side water chemistry in steam generators during normal operation, including anticipated operational occurrences (main condenser inleakage and primary-to-secondary leakage). The design basis should include consideration of expected and design flows for all modes of operation (process and process bypass), process design parameters and equipment design capacities, expected and design temperatures for temperature sensitive treatment processes (demineralization and reverse osmosis), and process instrumentation and controls for maintaining operations within established parameter ranges. DRAFT Rev. 3 - April 1996 10.4.8-2 Review Interfaces 1. EMCB performs the following reviews as part of its primary review responsibility under the Standard Review Plan (SRP) sections indicated:6 2.a. Process sampling capabilities of the SGBS is are reviewed by CMEBEMCB as 7 8 9 part of its primary review responsibility for SRP Section 9.3.2. b. CMEBEMCB reviews the secondary coolant chemistry program for steam 10 generator blowdown samples as part of its primary review responsibility for SRP Section 5.4.2.1, BTP MTEB 5-3 (Monitoring of Secondary Side Water Chemistry in PWR Steam Generators).11 2. CMEBEMCB will coordinate evaluations of other branches that interface with the 12 overall review of the steam generator blowdown