Optimization of Safety Instrumented System Configuration based on Simplex Algorithm

doi:10.23940/ijpe.21.02.p3.191199

Abstract

Abstract: The probability of failure on demand or per hour (PFD or PFH) of safety instrumented systems (SIS) depends on the configuration of its subsystems due to different devices' characteristics. Minimizing the probability of failure results in a high level of optimum safety integrity. This paper presents an approach whose objective is to determine an SIS architecture using the Simplex method based on PFH, failure rate, required safety integrity level (SIL) and the cost associated to the various prevention devices. A case study (tandem Arcelor Mittal in Algeria) is proposed to validate the model.

Key words: safety instrumented system, architecture, probability of failure, optimization

Fatma Zohra Labadlia, Elias Hadjadj Aoul, Brahim Hamaidi, and Mohammed Bougofa. Optimization of Safety Instrumented System Configuration based on Simplex Algorithm [J]. Int J Performability Eng, 2021, 17(2): 191-199.

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