Document: NUREG-0800
Document ID: c8e356de-6353-4224-8b1c-72f7e218597d
Document Type: srp
Title: MAIN CONDENSERS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070510077.pdf
Revision Date: 2023-06
Chapter: 10
Section ID: 10.4.1
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of power conversion systems Secondary - None I. AREAS OF REVIEW The main condenser (MC) system is designed to condense and deaerate the exhaust steam from the main turbine and provide a heat sink for the turbine bypass system. For new BWRs without a main steam isolation valve leakage control system (MSIVLCS), the MC may also serve an accident mitigation function to act as a holdup volume for the plateout of fission products leaking through the main steam isolation valves following core damage. The review will be focused on the design features incorporated to control release of radioactive material to the environment. The specific areas of review are as follows: 1. The design, design objectives, capacity, method of operation, and factors that influence gaseous radioactive material handling, e.g., system interfaces and potential bypass routes. The review includes the system piping and instrumentation diagrams (P&IDs). 2. The means to prevent corrosion and/or erosion of condenser tubes, and detect, control and facilitate correction of the leakage of cooling water into the condensate. 10.4.1-2 Revision 3 - March 2007 3. The means to detect radioactive leakage into or out of the system; and to preclude accidental releases of radioactive materials to the environment in amounts in excess of established limits. 4. Instrumentation and control features that determine and verify that the MC is operating in a correct mode. 5. The means provided to deal with flooding from a complete failure of the MC and to preclude damage to safety-related equipment from the flooding. 6. The capability of the MC to withstand the blowdown effects of steam from the turbine bypass system. 7. If the potential for explosive mixtures exist, design features to preclude the possibility of an explosion which could cause a release of radioactive material to the environment. 8. Inspections, Tests, Analyses, and Acceptance Criteria