Lloyd’s Register (LR) and HD Hyundai Heavy Industries (HHI) have signed an approval in principle (AiP) for a 15,300 TEU Class ammonia powered dual-fuel container ship, as part of a joint development project (JDP).
Under the agreement, HHI has developed a twin skeg design for an ultra large container ship (ULCS). The 365-metre vessel features two small bore engines that are currently available on the market and ammonia fuel tanks positioned ahead of the engine room, far from the deckhouse, helping ensure safe fuel supply operations and better crew habitability.
It is the first design to offer ammonia-powered dual fuel engines for ULCS, as there is currently no large ammonia powered dual fuel big bore engine technically available. It hopes to address concerns from ship owners who are hesitant to adopt ammonia dual fuel systems until they are proven with applicable engine types for ULCSs.
Moreover, Lloyd’s Register (LR) and HD Hyundai Heavy Industries (HHI) stated that as the shipping industry strives to reduce its environmental impact, the potential of ammonia as fuel in shipping has emerged as a potential low-carbon option due to its zero carbon emissions when burned.
However, challenges remain, particularly due to the inherent toxicity of ammonia, which has slowed its widespread adoption as a dual-fuel option in various ship types.
There is a growing demand for container vessels that incorporate innovative technologies to comply with stringent regulations and environmental standards for zero carbon.
…said Kim, Young-Doo, GTSO Representative for Korea, Lloyd’s Register.
The project aims to complete a full safety review that involves a feasibility assessment for ammonia fuel tanks constructed with low temperature steel and an evaluation of the structural integrity of the ship against sloshing loads.
Additionally, it will review the fuel gas supply system, helping ensure safety and compatibility with ammonia.
LR has reviewed the design to ensure it meets applicable standards of safety and operational efficiency relating to the usage of ammonia as a marine fuel and provide technical advice for further design development.
