Assessing the reliability of dynamic systems for safety units recovering flare gas, considering covariates

Journal of Industrial Engineering International

دوره 18، شماره 4، اسفند 2022، صفحه 115-129   

نوع مقاله: Original Article

شناسه دیجیتال (DOI): 10.30495/jiei.2023.1989424.1312

نویسندگان

Abolghasem Nobakhti¹؛ Sadigh Raissi^{* 2}؛ Kaveh Khalili Damghani³؛ Roya Soltani⁴

¹Department of Industrial Engineering, College of Engineering, South Tehran Branch, Islamic Azad University

²Department of Industrial Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.

³Department of Industrial Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

⁴Department of Industrial Engineering Khatam University, Tehran, Iran

چکیده

The Flare Gas Recovery System (GR) is a critical component in preventing the release of pollutants into the atmosphere. However, these systems are expensive to install and maintain, so ensuring their reliability and effectiveness during operation is critical task. Two safety system technologies have been developed for GR, the fast opening and closing valve system (OVS) and the closed drum system (CDS), but the dynamic operating conditions and lack of historical data make reliability estimates as a crucial complicated task. To address this issue, we propose a novel approach to develop a system reliability as a response surface based on multiple operating pressure and temperature using a hybrid fault tree and a fuzzy inference system. The result reveals an average 22.4% improvement in reliability for OVS compared to CDS in various operational scenarios. Our proposed method provides an operative technique to assess the reliability of GR security systems considering various operating conditions. Results also can help decision-makers to choose the security technology that best fits their particular application needs, ultimately reducing maintenance of costs while ensuring optimal performance over the long term.

کلیدواژه‌ها

Reliability assessment؛ Flare gas recovery system؛ Fault tree analysis؛ Fuzzy inference system؛ Expert elicitation

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