e-Repository BATAN

Advanced Search

A fuzzy-based reliability approach to evaluate basic events of fault tree analysis for nuclear power plant probabilistic safety assessment

Julwan Hendry Purba, JHP (2014) A fuzzy-based reliability approach to evaluate basic events of fault tree analysis for nuclear power plant probabilistic safety assessment. A fuzzy-based reliability approach to evaluate basic events of fault tree analysis for nuclear power plant probabilistic safety assessment, 70. pp. 21-29.

Full text not available from this repository.

Abstract

ABSTACK Fault tree analysis has been widely utilized as a tool for nuclear power plant probabilistic safety assess- ment. This analysis can be completed only if all basic events of the system fault tree have their quanti- tative failure rates or failure probabilities. However, it is difficult to obtain those failure data due to insufficient data, environment changing or new components. This study proposes a fuzzy-based reliabil- ity approach to evaluate basic events of system fault trees whose failure precise probability distributions of their lifetime to failures are not available. It applies the concept of failure possibilities to qualitatively evaluate basic events and the concept of fuzzy sets to quantitatively represent the corresponding failure possibilities. To demonstrate the feasibility and the effectiveness of the proposed approach, the actual basic event failure probabilities collected from the operational experiences of the David–Besse design of the Babcock and Wilcox reactor protection system fault tree are used to benchmark the failure prob- abilities generated by the proposed approach. The results confirm that the proposed fuzzy-based reliabil- ity approach arises as a suitable alternative for the conventional probabilistic reliability approach when basic events do not have the corresponding quantitative historical failure data for determining their reli- ability characteristics. Hence, it overcomes the limitation of the conventional fault tree analysis for nuclear power plant probabilistic safety assessment.

Item Type: Article
Subjects: Keselamatan dan Keamanan Nuklir
Divisions: Pusat Teknologi dan Keselamatan Reaktor Nuklir
Depositing User: USER PTKRN BATAN
Date Deposited: 21 Aug 2018 07:46
Last Modified: 21 Aug 2018 07:46
URI: http://repo-nkm.batan.go.id/id/eprint/3750

Actions (login required)

View Item View Item