J-ENG plans October delivery for first ammonia marine engine

The ammonia dual-fuel two-stroke engine will be delivered to a shipyard in October for installation on an ammonia-capable gas carrier, engine manufacturer Japan Engine Corporation (J-ENG) said.

IMAGE: Concept of an ammonia-fuelled gas carrier. Linkedin of Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping

J-ENG has started ammonia co-firing tests on its first ammonia dual-fuel engine.

Co-firing tests help assess the feasibility, safety and efficiency of using blended fuels in existing or new combustion systems.

In ammonia-fuelled engines, co-firing is typically carried out to determine the proportion of ammonia that can replace fossil fuels while maintaining stable engine performance and combustion efficiency. It can also help evaluate how much pilot fuel is required to enable reliable ammonia combustion.

Once testing is complete, the engine will be installed on the vessel 7UEC50LSJA-HPSCR for “demonstration operations,” according to J-ENG. Details about the vessel have not yet been disclosed.

The company is also developing another ammonia-capable engine, which it claims will be “compatible with a wide variety of ammonia-fueled ships,” though it has not yet disclosed further details about this project.

By Konica Bhatt

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