Determination of bunkering safety zones for ammonia-fueled ship
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초록
This study was proposed to determine the safety zones for ammonia bunkering for a 30 G/T class ammonia fuel cell propul-sion ship which is currently under a design process and is expected to be launched in 2023. Because the case ship is the first ammonia-fueled ship for the South Korean coastal service, the brevity of safety records is not able to determine the safety of bunkering, which may pose various potential risks associated with the accidental release of ammonia during bunkering. Hence, the study adopts a novel quantitative risk assessment method to establish proper levels of safety zones for ammonia bunkering using a combination of population independent and dependent assessment methods. The analysis results suggest that the safe zone of the case ship can be established within 10 m if the 5.0 × 10-5/year safety criterion is applied, 57 m in the 1.0 × 10-5/year safety criterion, and 373 m in the 5.0 × 10-6/year criterion. Because the potential risks of using ammonia as a marine fuel are not elucidated, this study offers step-by-step guidelines in determining proper safety zones and provides insights into the risk levels of ammonia fuels in the maritime sector.
Abstract
This study was proposed to determine the safety zones for ammonia bunkering for a 30 G/T class ammonia fuel cell propul-sion ship which is currently under a design process and is expected to be launched in 2023. Because the case ship is the first ammonia-fueled ship for the South Korean coastal service, the brevity of safety records is not able to determine the safety of bunkering, which may pose various potential risks associated with the accidental release of ammonia during bunkering. Hence, the study adopts a novel quantitative risk assessment method to establish proper levels of safety zones for ammonia bunkering using a combination of population independent and dependent assessment methods. The analysis results suggest that the safe zone of the case ship can be established within 10 m if the 5.0 × 10-5/year safety criterion is applied, 57 m in the 1.0 × 10-5/year safety criterion, and 373 m in the 5.0 × 10-6/year criterion. Because the potential risks of using ammonia as a marine fuel are not elucidated, this study offers step-by-step guidelines in determining proper safety zones and provides insights into the risk levels of ammonia fuels in the maritime sector.
참고문헌 (18)
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