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A study on importance measures and a quantification algorithm in a fire PRA model

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  • Kim, Kilyoo
  • Han, Sanghoon

Abstract

In the current quantification of fire probabilistic risk assessment (PRA), when components are damaged by a fire, the basic event values of the components become ‘true’ or one (1), which removes the basic events related to the components from the minimal cut sets, and which makes it difficult to calculate accurate component importance measures. A new method to accurately calculate an importance measure such as Fussell–Vesely in fire PRA is introduced in this paper. Also, a new quantification algorithm in the fire PRA model is proposed to support the new calculation method of the importance measures. The effectiveness of the new method in finding the importance measures is illustrated with an example of evaluating cables’ importance.

Suggested Citation

  • Kim, Kilyoo & Han, Sanghoon, 2009. "A study on importance measures and a quantification algorithm in a fire PRA model," Reliability Engineering and System Safety, Elsevier, vol. 94(5), pages 969-972.
    • Handle: RePEc:eee:reensy:v:94:y:2009:i:5:p:969-972
    DOI: 10.1016/j.ress.2008.11.002
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