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A cascaded fuzzy-LOPA risk assessment model applied in natural gas industry |
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| Authors: | M Khalil MA Abdou MS Mansour HA Farag ME Ossman |
| Institution: | 1. Chem Eng Dept., Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt;2. Informatic Research Institute (IRI), City for Scientific Research and Technology Application (MuCSAT), Alexandria, Egypt;3. Petrochemical Engineering Department, Faculty of Engineering, Pharos University, (PUA), Alexandria, Egypt;1. Carroll School of Management, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, USA;2. David A. Tepper School of Business, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213-3890, USA;1. Department of Health, Safety & Environment (HSE), School of Environment, College of Engineering, University of Tehran, Tehran, Iran;2. Mechanical and Industrial Engineering Department, Ryerson University, Toronto, ON, Canada;3. School of Occupational and Public Health, Ryerson University, Toronto, ON, Canada |
| Abstract: | Natural gas plants demand high amount of energy provided through immense fuel gas units that may suffer risk hazards. Implementing a safety management system is the most efficient way of allocating resources for safety. This paper adopts The Layer of Protection Analysis (LOPA) risk Management associated with Fuzzy Logic methodology to prevent or limit industrial accidents. We provide an innovative cascaded fuzzy-LOPA model for certain hazardous scenarios and at different frequencies of occurrence. The introduced model is tested at moderate and high risk levels controlled in its practical limits through the use of Safety Integrity Functions (SIF). Obtained results show how this fuzzy-LOPA achieves better results to maintain the Safety Integrity Level (SIL) rating to acceptable limits. |
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