FMEA for CNS Facility and Cause Analysis of Shutdown Events to Improve Reactor Availability 


Vol. 35,  No. 5, pp. 115-120, Oct.  2020
10.14346/JKOSOS.2020.35.5.115


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  Abstract

From 2009 when the CNS facility was installed, the number of reactor failures due to abnormal CNS facility system has increased significantly. Of the total of 19 nuclear reactor shutdowns over the six years from 2009 to 2019, there were 10 nuclear reactor shutdowns associated with the CNS facility, which are very numerous. Therefore, this report intends to analyze the history of nuclear reactor shutdowns due to CNS facility system failure in detail, and to present the root cause and solution to problems. As a result of FMEA implementation of CNS facility system, a total of 76 SPVs were selected. In addition, 10 cases of reactor shutdown history due to CNS facility system abnormalities were analyzed in detailed, and improvement plans for solving the root cause and problem were suggested for each trip history. The results of this study are expected to be able to operate the domestic research reactor and CNS facilities more stably by providing effective measures to prevent recurrence of CNS facilities and reactor trips.

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  Cite this article

[IEEE Style]

이윤환 and 황정식, "FMEA for CNS Facility and Cause Analysis of Shutdown Events to Improve Reactor Availability," Journal of the Korean Society of Safety, vol. 35, no. 5, pp. 115-120, 2020. DOI: 10.14346/JKOSOS.2020.35.5.115.

[ACM Style]

이윤환 and 황정식. 2020. FMEA for CNS Facility and Cause Analysis of Shutdown Events to Improve Reactor Availability. Journal of the Korean Society of Safety, 35, 5, (2020), 115-120. DOI: 10.14346/JKOSOS.2020.35.5.115.

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