Hazard identification by extended multilevel flow modelling with function roles.

Jing Wu*, Laibin Zhang, Sten Bay Jørgensen, Gürkan Sin, Zia Ullah Khokhar, Morten Lind

*Corresponding author for this work

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HAZOP studies are widely accepted in chemical and petroleum industries as the method for conducting process hazard analysis related to design, maintenance and operation of th e systems. In this paper, a HAZOP reasoning method based on function-oriented modelling, multilevel flow modelling (MFM) is extended with functi on roles to complete HAZOP studies in principle. A graphical MFM editor, which is combined with the reasoning engine (MFM Workbench) developed by DTU is applied to automate HAZOP studies. The method is proposed to suppor t the ‘brain-storming’ sessions in traditional HAZOP analysis. As a case study, the extended MFM-based HAZOP methodology is applied to an o ffshore three-phase separation process. The results show that the cause-consequence analysis in MFM can infer the cause and effect of a deviation used in HAZOP and used to fill HAZOP worksheet. This paper is the first pa per discussing and demonstrating the potential of the roles concept in MFM to supplement the completeness of HAZOP analysis in theory
Original languageEnglish
JournalInternational Journal of Process Systems Engineering
Issue number3
Pages (from-to)203-220
Publication statusPublished - 2014


  • Hazard identification
  • Multilevel Flow Modelling
  • MFM
  • Automated HAZOP
  • Oil and Gas Industry

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