Hazard identification (HAZID) of LNG dual-fueled ships operating between the Korean port of Busan and the Iranian port of Bandar Abbas
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This study investigates the scope of hazard identification (HAZID), focusing in particular on analysis of the causes and consequences of hazardous scenarios for overall LNG fuel systems. The main categories of hazard scenarios are: fire and explosion initiating from LNG systems, fire and explosion not LNG-initiated, dropped objects, collisions, grounding, foundering, and occupational accidents. The main goals of this study are: identifying potential hazards to be addressed in further concept risk analysis assessment; providing input on possible solutions to be assessed in the vessel concept development work; and providing input to external communication from the vessel/project, clearly describing how potential risk should be identified and addressed through the vessel/project. The purpose of the HAZID in our study is to identify safety hazards that may represent risks to crew and third parties, e.g., maintenance personnel, yard workers, and other ships during operation. We identified 34 hazards and made 18 recommendations with a comprehensive summary in terms of design and operation, which covered a wide-range of design and operation topics with the division in high prioritization. The main result from the HAZID shows that the estimated HAZID increase is mainly due to the presence of the LNG tank and its effect on the risk from fire/explosions due to ship collision. The HAZID results confirm that there are no major HSE showstoppers to perform construction and conversion on vessels using dual-fuel. The main selection criterion is the potential design, worst-case scenario for location of LNG tank below accommodation, and technical and operational capabilities in conducting such a HAZID study and investigations. Several significant gaps in mandatory regulations, standards, guidelines, or of relevant organizations beyond mandatory regulations were identified and addressed.
Abstract
This study investigates the scope of hazard identification (HAZID), focusing in particular on analysis of the causes and consequences of hazardous scenarios for overall LNG fuel systems. The main categories of hazard scenarios are: fire and explosion initiating from LNG systems, fire and explosion not LNG-initiated, dropped objects, collisions, grounding, foundering, and occupational accidents. The main goals of this study are: identifying potential hazards to be addressed in further concept risk analysis assessment; providing input on possible solutions to be assessed in the vessel concept development work; and providing input to external communication from the vessel/project, clearly describing how potential risk should be identified and addressed through the vessel/project. The purpose of the HAZID in our study is to identify safety hazards that may represent risks to crew and third parties, e.g., maintenance personnel, yard workers, and other ships during operation. We identified 34 hazards and made 18 recommendations with a comprehensive summary in terms of design and operation, which covered a wide-range of design and operation topics with the division in high prioritization. The main result from the HAZID shows that the estimated HAZID increase is mainly due to the presence of the LNG tank and its effect on the risk from fire/explosions due to ship collision. The HAZID results confirm that there are no major HSE showstoppers to perform construction and conversion on vessels using dual-fuel. The main selection criterion is the potential design, worst-case scenario for location of LNG tank below accommodation, and technical and operational capabilities in conducting such a HAZID study and investigations. Several significant gaps in mandatory regulations, standards, guidelines, or of relevant organizations beyond mandatory regulations were identified and addressed.
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