Ouache, Rachid and M. Nomani, Kabir (2016) Models of Probability of Failure on Demand for Safety Instrumented System using Atmospheric Elements. Safety Science, 87 (Aug.). pp. 38-46. ISSN 0925-7535. (Published)
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Abstract
Safety instrumented system (SIS) is an essential device to protect the industries from dangerous situations. Reliability of SIS is measured by the analysis of probability of failure on demand (PFD) which is an integral part in quantitative risk and safety assessment to determine the risk and safety integrity level. PFD varies from location to location due to atmospheric effects. In this paper, new mathematical models are proposed to compute the failure probability of the equipment due to corrosion considering three atmospheric factors: temperature, humidity and wind speed. The models are solved by least squares methods using standard data to identify the parameters involved in the models. Finally, comparison between the two proposed models is made to select the better model for computing the failure probability. The models provide good correlation with reference data. These models can be used to compute the PFD at any geographical location.
| Item Type: | Article |
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| Uncontrolled Keywords: | Safety instrumented system; Probability of failure on demand; Atmospheric elements; Reliability; Linear and nonlinear least squares |
| Subjects: | Q Science > Q Science (General) |
| Faculty/Division: | Faculty of Computer System And Software Engineering |
| Depositing User: | Dr. Muhammad Nomani Kabir |
| Date Deposited: | 30 Mar 2016 04:01 |
| Last Modified: | 25 Sep 2018 08:42 |
| URI: | http://umpir.ump.edu.my/id/eprint/12484 |
| Download Statistic: | View Download Statistics |
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