Modeling for evaluation of safety instrumented systems with heterogeneous components

Baoping Cai, Wenchao Li, Yiliu Liu, Xiaoyan Shao, Yanping Zhang, Yi Zhao, Zengkai Liu, Renjie Ji and Yonghong Liu

Reliability Engineering and System Safety, 2021, vol. 215, issue C

Abstract: A novel methodology for evaluation of safety instrumented systems (SISs) with heterogeneous components based on multi-stage dynamic Bayesian networks (MDBNs) is proposed. The unified evaluation model for M-out-of-N architectures based on MDBNs is constructed. An automatic modeling method of conditional probability tables for time-slice and inter-slice transitions is established. Average probability of failure on demand (PFDavg) and probability of failing safety (PFS) of the structure can be calculated by the established model. A method for calculating the life-cycle cost of SISs is presented by using the results of system evaluation and specific cost details. A high-integrity pressure protection system (HIPPS) is adopted to demonstrate the application of the proposed approach. A MDBNs-based evaluation and cost analysis software of heterogeneous redundant structure is developed by using MATLAB graphical user interface. The analysis of system evaluation results and life-cycle cost can help the designer determine the configuration of the heterogeneous redundant structure.

Keywords: Safety instrumented systems; Dynamic Bayesian networks; Heterogeneous redundant; Life-cycle cost (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:215:y:2021:i:c:s0951832021003446

DOI: 10.1016/j.ress.2021.107823

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