Abstract
Safety instrumented systems (SISs) are used in many application areas to reduce the likelihood of hazardous events and/or to mitigate the consequences of such events. A typical SIS has three subsystems, each with redundant channels that are vulnerable to common cause failures. This paper deals with the reliability importance of the channels of a SIS. Five different importance measures are determined with the average probability of failure on demand as reliability performance measure. A Markov method is used to link the failure rates of channels and the system unavailability. Common cause failures are also taken into account. An illustrative example is provided to describe the calculation process of the reliability importance of the channels.
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Liu, Y., Lundteigen, M.A. (2015). Reliability Importance of the Channels in Safety Instrumented Systems. In: Gen, M., Kim, K., Huang, X., Hiroshi, Y. (eds) Industrial Engineering, Management Science and Applications 2015. Lecture Notes in Electrical Engineering, vol 349. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-47200-2_108
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DOI: https://doi.org/10.1007/978-3-662-47200-2_108
Publisher Name: Springer, Berlin, Heidelberg
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