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ClassNK has issued an Approval in Principle (AiP) for an ammonia-fuelled ammonia bunkering vessel. This vessel is jointly developed by Nippon Yusen Kabushiki Kaisha (NYK Line) and LMG Marin AS (a member of the Seatrium Group).

As ammonia fuel utilization is expected in shipping for decarbonization, bunkering vessels that supply fuel to ships and related equipment will play an essential role in the supply chain.

Fuel engines from IHI Power Systems

Additionally, a safety verification was conducted through HAZID involving relevant stakeholders

This vessel is being developed jointly by NYK Line, advancing the development of ammonia-fueled vessels, and Seatrium, the largest shipyard in Singapore, with the goal of introducing it to Singapore, one of the world’s pioneering bunkering ports.

This vessel is mainly designed by LMG Marin AS. It features ammonia fuel dual-fuel engines from IHI Power Systems and a bunkering boom from TB Global Technology, allowing for safe and reliable ammonia bunkering operations. Additionally, a safety verification was conducted through HAZID involving relevant stakeholders.

New technology development and social implementation

ClassNK carried out a review of the conceptual design of the ship based on its ‘Part N; Ships carrying liquefied gases in bulk ‘ of the Class Rules and ‘Part C-2; Guidelines for the Safety of Liquefied Gas Carriers Using Ammonia as Fuel (Edition 3.0.2) which is part of ‘Guidelines for Ship Using Alternative Fuels (Edition 3.0) and examined the result of required assessment. Upon confirming they comply with the prescribed requirements, ClassNK issued the AiP.

Moreover, the latest ‘INTERIUM GUIDELINES FOR THE SAFETY OF SHIPS USING AMMONIA AS FUEL’ approved at MSC 109 last December are referred to in this AiP. ClassNK will continue to contribute to new technology development and social implementation, including safety assessments.

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