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A holistic risk identification approach for LPG storage systems using a combination of HAZOP, fuzzy FTA, ETA, and FMECA methods.

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Title: A holistic risk identification approach for LPG storage systems using a combination of HAZOP, fuzzy FTA, ETA, and FMECA methods.
Authors: Chakhrit, Ammar1 (AUTHOR) a.chakhrit@univ-soukahras.dz, Benharkat, Nour El Houda2 (AUTHOR), Wadi, Mohammed3 (AUTHOR)
Source: Process Safety Progress. Jun2026, Vol. 45 Issue 2, p149-159. 11p.
Subjects: Risk assessment, Liquefied petroleum gas, Fault trees (Reliability engineering), Safety, Failure mode & effects analysis
Geographic Terms: Algeria
Abstract: The safe operation of liquefied petroleum gas (LPG) storage systems is critical due to the potential hazards. This paper develops a comprehensive risk assessment framework to improve the safety evaluation of LPG storage systems in Algeria. First, hazard and operability study (HAZOP) identifies possible hazards and consequences, which are then assigned as top events in the fuzzy fault tree analysis (FFTA) in order to address the inherent uncertainties. Subsequently, event tree analysis (ETA) evaluates different accident scenarios and consequence pathways. Finally, the results are transformed into a failure mode, effects, and criticality analysis (FMECA) framework, where basic events are assessed to prioritize risks and recommend mitigation measures. By combining HAZOP's systematic hazard identification, FFTA's uncertainty handling, ETA's consequence mapping, and FMECA's risk prioritization, the proposed framework offers a holistic approach that is both robust and adaptable. The proposed methodology is applied to an Algerian LPG storage facility, demonstrating its effectiveness in identifying high‐risk and providing actionable safety improvements. A comparison with a standard FTA/ETA methodology is applied to validate the approach. [ABSTRACT FROM AUTHOR]
Copyright of Process Safety Progress is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: A holistic risk identification approach for LPG storage systems using a combination of HAZOP, fuzzy FTA, ETA, and FMECA methods.
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  Data: <searchLink fieldCode="DE" term="%22Risk+assessment%22">Risk assessment</searchLink><br /><searchLink fieldCode="DE" term="%22Liquefied+petroleum+gas%22">Liquefied petroleum gas</searchLink><br /><searchLink fieldCode="DE" term="%22Fault+trees+%28Reliability+engineering%29%22">Fault trees (Reliability engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Safety%22">Safety</searchLink><br /><searchLink fieldCode="DE" term="%22Failure+mode+%26+effects+analysis%22">Failure mode & effects analysis</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Algeria%22">Algeria</searchLink>
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  Data: The safe operation of liquefied petroleum gas (LPG) storage systems is critical due to the potential hazards. This paper develops a comprehensive risk assessment framework to improve the safety evaluation of LPG storage systems in Algeria. First, hazard and operability study (HAZOP) identifies possible hazards and consequences, which are then assigned as top events in the fuzzy fault tree analysis (FFTA) in order to address the inherent uncertainties. Subsequently, event tree analysis (ETA) evaluates different accident scenarios and consequence pathways. Finally, the results are transformed into a failure mode, effects, and criticality analysis (FMECA) framework, where basic events are assessed to prioritize risks and recommend mitigation measures. By combining HAZOP's systematic hazard identification, FFTA's uncertainty handling, ETA's consequence mapping, and FMECA's risk prioritization, the proposed framework offers a holistic approach that is both robust and adaptable. The proposed methodology is applied to an Algerian LPG storage facility, demonstrating its effectiveness in identifying high‐risk and providing actionable safety improvements. A comparison with a standard FTA/ETA methodology is applied to validate the approach. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Process Safety Progress is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/prs.70060
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 149
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      – SubjectFull: Risk assessment
        Type: general
      – SubjectFull: Liquefied petroleum gas
        Type: general
      – SubjectFull: Fault trees (Reliability engineering)
        Type: general
      – SubjectFull: Safety
        Type: general
      – SubjectFull: Failure mode & effects analysis
        Type: general
      – SubjectFull: Algeria
        Type: general
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      – TitleFull: A holistic risk identification approach for LPG storage systems using a combination of HAZOP, fuzzy FTA, ETA, and FMECA methods.
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            NameFull: Chakhrit, Ammar
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            NameFull: Benharkat, Nour El Houda
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            NameFull: Wadi, Mohammed
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            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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