TSUNEISHI SHIPBUILDING Co., Ltd. announced that it has received the AiP*1 from Nippon Kaiji Kyodai (‘ClassNK’) on 25 December 2024 for a methanol dual-fuel vessel design for retrofitting existing heavy oil vessels (the ‘Project’), which was led and studied jointly with the Maersk Mc-Kinney Møller Center for Zero Carbon Shipping.
The design for which AiP was obtained was based on the standard design of KAMSARMAX, a medium-sized bulk carrier that is TSUNEISHI SHIPBUILDING’s flagship product. The most significant issue in the conversion was determining the location of the new methanol fuel tanks, which were studied in detail.
After comparing several layout ideas, including aft, bottom and central tank arrangements, and fully assessing the impact on hull strength, cruising range and the amount of work required for the conversion, it was decided to place the tanks in the cargo hold.
The technical review of the design based on this arrangement by ClassNK and a HAZID*2 were carried out and the technical feasibility and safety of the design were confirmed, leading to the AiP.
Bulk carriers currently account for approximately 20% of
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