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Dynamical reliability analysis for ECCS of pressurized water reactor considering the large break LOCA by GO-FLOW methodology HASHIM Muhammad, MATSUOKA Takeshi, YOSHIKAWA Hidekazu, and MING Yang
College of Nuclear Science and Technology, Harbin Engineering University, Harbin, China (hashimsajid@yahoo.com)
Abstract: Reliability is the ability of a system or component to perform its required functions under a certain prescribed conditions for a specified period of time. It is a probability of failure or a measure of availability. The GO-FLOW methodology, which is a success-oriented system analysis technique, is able to evaluate the system reliability and availability. The analysis is made on phased mission problem in which system configuration is altered such that the failure logic model changes one or more times. In this paper, an exemplar of dynamical reliability analysis is conducted by GO-FLOW for ECCS of four-loop PWR that undergoes phased mission problem by considering the behavior of an ECCS component in case of a large break LOCA. The GO-FLOW methodology has proved to be a suitable tool for dynamical reliability analysis of phased mission problem
Keyword:dynamical reliability; GO-FLOW;phased mission problem;large breakLOCA; PWR |
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