Document: NUREG-0800
Document ID: 1a3364df-d783-4da3-9f56-b8a667f8cf50
Document Type: srp
Title: CHEMICAL AND VOLUME CONTROL SYSTEM (PWR)
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052350555.pdf
Revision Date: 2023-06
Chapter: 9
Section ID: 9.3.4
CFR Part: 
CFR Title: 

Content:
(INCLUDING BORON RECOVERY SYSTEM) REVIEW RESPONSIBILITIES Primary - Chemical Engineering Branch (CMEB) Secondary - None I. AREAS OF REVIEW Pressurized water reactor (PWR) plants include a chemical and volume control sys- tem (CVCS) and boron recovery system (BRS). These systems maintain the required water inventory and quality in the reactor coolant system (RCS), provide seal-water flow to the reactor coolant pumps and pressurizer auxiliary spray, control the boron neutron absorber concentration in the reactor coolant, and control the primary water chemistry and reduce coolant radioactivity level. Further, the system provides recycled coolant for demineralized water makeup for normal opera- tion and the design may also provide high pressure injection flow to the emergency core cooling system (ECCS) in the event of postulated accidents. The review is performed to assure conformance with the requirements of General Design Criteria (GDC) 1, 2, 5, 14, 29, 33, 35, 60, and 61. A. The CMEB reviews the systems from the letdown line of the primary system to the charging lines that provide makeup to the primary system and the reactor coolant pump seal-water system. The system is reviewed to the interfaces with the demineralized water makeup system and radioactive waste system and includes the following considerations: 1. The safety-related functional performance characteristics of CVCS com- ponents and the effects of adverse'environmental occurrences, abnormal operational requirements, or accident conditions such as those due to a loss-of-coolant accident (LOCA). 2. The determination that a malfunction, a single failure of an active component, or the loss of a cooling source will not reduce the safety- related functional performance capabilities of the system. Rev. 2 - July 1981 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applications to construct and operate