Optimal test interval modeling of nuclear safety system using the inherent unavailability and human error = 고유이용불능도와 인간 실수를 고려한 원자력 안전계통의 최적테스트 주기모델링

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A standby safety system in nuclear power plant is periodically tested to detect a failure in the system. The unavailability due to periodical testing dominently contributes to the system unavailability. Therefore, determination of test interval is an important problem in the aspect of system availability. In current state of system availability modeling, the system has been assumed to return to a good-as-new state (i.e., turn to a perfect component) after test and repair. But we can not obtain the practical result of optimal test interval by this modeling. This paper deals with a constant unavailability which consists of the unavailability due to human error and the inherent unavailability for the modeling of optimal test interval. Inherent unavailability is summation of the inherent unavailability on demand and the unavailability of a support system. And it is defined as the unavailability, which is caused by an inherent undetectability. Consideration of the constant unavailability makes it possible to determine the rational optimal test interval of the redundant component system. The results show that the optimal test interval in redundant component system dominently depends on the constant unavailability. As a result, the developed modeling makes it possible to determine the more exact and practical test interval in redundant component system and gives the more improved prediction of system availability.
Advisors
Chang, Soon-Heungresearcher장순흥researcher
Description
한국과학기술원 : 핵공학과,
Publisher
한국과학기술원
Issue Date
1986
Identifier
65463/325007 / 000841248
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 핵공학과, 1986.2, [ iii, 47 p. ]

URI
http://hdl.handle.net/10203/49129
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=65463&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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