Alternative Fuels

ABS concludes risk assessment of ammonia-fuelled LNG carrier

October 22, 2024

Classification society ABS has completed a safety evaluation of ammonia dispersion onboard an ammonia-fuelled LNG carrier design from Hanwha Ocean.

PHOTO: Getty Images


ABS, in partnership with Hanwha Ocean, conducted fluid dynamics simulations to model different ammonia leak scenarios from the engine room, pipeline, and bunkering stations.

The study confirmed that the system met ABS rules for ammonia toxicity and gas accumulation risks. The findings will aid Hanwha Ocean in improving ventilation, vent mast placement, gas release speeds, and air intake locations, to minimise risks during the design stage.

Additionally, ABS’ subsidiary, ABSG Consulting, performed a quantitative risk assessment, offering insights into incident likelihood and threats, allowing Hanwha Ocean to enhance its mitigation strategies.

By Tuhin Roy

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