Attempt to evaluate functional diversity employed in a reactor protection system

Jorgen Christmansson, Zbigniew Kalbarczyk, Jan Torin

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The ability of functional diversity to reduce the probability of common cause failures is evaluated. An emergency core cooling system (ECCS) in a reactor protection system is used. The evaluation is conducted by the comparison of three different system architectures: configuration 0, ECCS without functional diversity; configuration 1, ECCS with functional diversity, although without functional separation; and configuration 2, with functional diversity and separation. The failure logic of each configuration is presented as a fault tree. The results of the analysis indicate that the functional diversity has a potential to reduce the probability of a system failure, provided that the proportion of common cause failures is the same for all configurations.

Original languageEnglish (US)
Title of host publicationDoktorsavhandlingar vid Chalmers Tekniska Hogskola
PublisherChalmers Tekniska Hogskola
Edition1362
StatePublished - Jan 1 1998
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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