At The Frontier of Ammonia Propulsion

Engineers are developing a two-stroke, dual-fuel ammonia engine that can move a ship’s emissions towards zero

Having developed a range of dual-fuel engines for greener fuels, MAN Energy Solutions' Research Centre Copenhagen (RCC) is pursuing the next milestone in achieving net-zero shipping: the first two-stroke ammonia marine engine. It's the story of how a toxic and pungent smelling chemical can make shipping greener.

The floor judders. Behind the glass panes here in the control room at RCC a tall two-stroke test engine starts working at full speed – emitting almost no carbon dioxide at all when running on ammonia. The RCC in the Danish capital’s old South Harbor has been working on the future of shipping for years. Its research and development specialists have improved ship engine efficiency and successfully converted engines to run on a number of cleaner fuels, such as liquefied natural gas (LNG) and green methanol.

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