مدل سازی برنامه حفاظت و نگهداری پیشگیرانه مبنی بر ریسک به روش FAHP-Delphi در صنعت پتروشیمی

عنوان انگليسی

Risk based maintenance (RBM) modeling of petrochemical industry using FAHP- Delphi techniques

خلاصه انگلیسی

Abstract: The progress of technology has caused operating of many processes and resulted in more complexity of the chemical process industries and one of the main challenges for these companies is to manage the existing assets in the comprehensive and complex infrastructure. Thus, the safe operations of these systems are at least as important as their design. It should be noted; despite of implementing safety programs in today’s industry, accidents still occur, and OSHA believes that all of these accidents follow typical patterns that help analyzers to recognize their root cause and take proper actions. On the other hand, the cost of maintenance is a considerable part of the total life cycle in these industries. Research has shown that some critical components account for most of the downtime in such operations. An improvement of maintenance practices which focused on risk based approach for critical components can improve the reliability and safety; at the same time can reduce maintenance costs. So, in order to reach a comprehensive risk management plan for these processes, we aim to prepare a domestic risk management model for chemical process based on Risk Based Maintenance (RBM) using FAHP technique. The initial steps involve literature review to identify critical assets and equipment. The subsequent interviews will be discussed these issues with experienced practitioners to identify their failures. The Delphi group method has been selected for data collection. Through three rounds of Delphi process experts helped to filter all the information to come up with a series of the most important strategic actions to RBM assessment of t systems. All of the RBM criteria have been localized by expert team and the risk number could be calculated according to these factors. There are several tools to analysis the risks of them. But, the classic approach always comes with great uncertainty. Thus, The FAHP model will be introduced as the most applicable approach for modeling of the risk management to overcome such limitations. However, by applying this technique, it will be anticipated that the safety of system improved, the environmental impacts and maintenance costs reduced, the spare parts allocated where necessary, and finally lead to prioritization of the process’s safety measures according to their risk levels.

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