ClassNK issues AiP for jointly developed ammonia fuelled bulk carrier

(Posted on 27/01/23)

ClassNK has issued an Approval in Principle (AiP) for a large ammonia fuelled 210,000 DWT bulk carrier jointly developed by Mitsui O.S.K. Lines, Ltd. (MOL) and MITSUI & CO., LTD (MITSUI).

Ammonia is expected to be used as a ship fuel for decarbonization since it does not emit CO2 when combusted. Meanwhile, adequate safety measures are imperative as it has been pointed out that ammonia is toxic to humans and corrosive to materials. ClassNK has been involved in projects aiming for zero-emission ships using ammonia fuel in terms of safety assessment, and has issued its "Guidelines for Ships Using Alternative Fuels” as a necessary standard to minimize the risks related to ammonia-fuelled ships for the ships, crews, and environment by stipulating requirements for installation, controls, and safety devices.

MOL and MITSUI have jointly determined the size and specifications for the vessel, and its design has been entrusted to Mitsubishi Shipbuilding Co., Ltd. ClassNK carried out the review of this jointly developed design in line with Part C of its guidelines and issued the AiP on verifying conformity to the prescribed requirements. In addition, risk assessment (HAZID) will be conducted to confirm that no unacceptable risks exist at the basic design stage and to identify items to be considered in the detailed design.

ClassNK will continue to support those companies as the certification body and will strive to provide appropriate standards for ammonia-fuelled ships through the expertise gained from the collaboration.

Approval in Principle (AiP): At the initial stage of designing or before the specific target ship to be implemented is decided, the design is examined based on the existing regulations such as international conventions and ship classification rules, and an Approval in Principle (AiP) is issued as proof of conformity with requirements. It also prevents rework of regulatory aspects in the post-process, shortens the examination time at the time of class registration, and can be used as a technical basis for external appeal of the design status.

Latest News

INTERCARGO stresses commitment to MARPOL on World Maritime Day

As the global shipping industry today celebrates World Maritime Day with its central theme of &ldquo... Read more

GTMaritime reaches 15,000-vessel milestone

Leading provider of secure maritime data communications software, GTMaritime, has reached 15,000 installations... Read more

Posidonia Masterclass in Shipping now live

Posidonia Exhibitions, organisers of Posidonia, the International Shipping Exhibition, is launching... Read more

NorthStandard identifies future path of P&I as it realizes early consolidation gains

Seven months after its formal launch, NorthStandard is already realizing tangible benefits from combining... Read more

Core Power adds US heavyweights to Global Advisory Board

Maritime nuclear technology company CORE POWER has boosted its Global Advisory Board with four new high... Read more

Foreship makes further commitment to growth in the UK

Foreship has relocated its UK subsidiary to larger premises and appointed Tuur Killaars as Senior Sustainability... Read more

DNV and PCL to expand collaboration in ESG and key operational areas

Classification society DNV has signed a Memorandum of Understanding (MoU) with Singapore-based ship... Read more

ISG partnership with MLS to enhance training for maritime sector

Leading blended learning provider Intelligent Seas Group (ISG) is delighted to announce its collaboration... Read more

Panama Canal water levels to remain exceptionally low for months

Record year-on-year declines in rainfall has been identified as the ‘likely culprit’ for... Read more

Change in MENAS Light Dues to ensure future of Aids to Navigation

After years of keeping a vital navigation service operating on the same income, Middle East Navigation... Read more