Improvement of Pressurizer PROV System through Micro - Computer and PRA마이크로 컴퓨터와 확률론적 리스크 평가를 통한 가압기 보호계통의 설계 개선

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Small break LOCA caused by a stuck-open PORV is one of the important contributors to nuclear power plant risk. This paper deals with the design of a pressurizer surveillance system using micro-computer to prevent the malfunction of system and has assessed the effect of this improvement through Probabilistic Risk Assessment (PRA) method. Micro-computer diagnoses the malfunction of system by a process checking method and performs automatically backup action related to each malfunction. Owing to this improvement, we can correctly diagnose "Spurious Opening", "Fail to Reclose" and "Small break LOCA" which are difficult for operator to diagnose quickly and correctly and reduce the probability of a human error by an automatic backup action.
Publisher
한국원자력학외
Issue Date
1985
Language
English
Citation

NUCLEAR ENGINEERING AND TECHNOLOGY , v.17, no.4, pp.302 - 316

ISSN
0372-7327
URI
http://hdl.handle.net/10203/67115
Appears in Collection
NE-Journal Papers(저널논문)
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