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2020•Algerian Journal of Signals and SystemsOpen access

Risk Analysis Using HAZOP -Fault Tree - Event Tree Methodology Case Study: Naphta Stabilizer-A Reflux Drum (LPG separation) in RA1K

Seif El Islam Bouasla, Youcef Zennir, El-Arkam Mechhoud

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Abstract

The purpose of this work is the risk assessment of a stabilizer reflux drum using HAZOP - Fault tree - Event tree approach. This risk assessment approach aims first of all to identify potential accident scenarios using Hazard an Operability study (HAZOP), these scenarios need more detailed frequencies estimation, it is performed thanks to fault tree analysis. Then, to analyze events issuing after success or fail of safety barriers, the event tree is used. Finally, in order to better appreciate accident scenarios, ALOHA is utilized to simulate them.

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What this paper is about

The purpose of this work is the risk assessment of a stabilizer reflux drum using HAZOP - Fault tree - Event tree approach. This risk assessment approach aims first of all to identify potential accident scenarios using Hazard an Operability study (HAZOP), these scenarios need more detailed frequencies estimation, it is performed thanks to fault tree analysis. Then, to analyze events issuing after success or fail of safety barriers, the event tree is used. Finally, in order to better appreciate accident scenarios, ALOHA is utilized to simulate them.

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Available abstract

The purpose of this work is the risk assessment of a stabilizer reflux drum using HAZOP - Fault tree - Event tree approach. This risk assessment approach aims first of all to identify potential accident scenarios using Hazard an Operability study (HAZOP), these scenarios need more detailed frequencies estimation, it is performed thanks to fault tree analysis. Then, to analyze events issuing after success or fail of safety barriers, the event tree is used. Finally, in order to better appreciate accident scenarios, ALOHA is utilized to simulate them.

Key concepts: Hazard and operability study, Fault tree analysis, Event tree, Event tree analysis, Event (particle physics), Operability, Computer science, Reliability engineering

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Risk Analysis Using HAZOP -Fault Tree - Event Tree Methodology Case Study: Naphta Stabilizer-A Reflux Drum (LPG separation) in RA1K — Research Paper | ScholarLens