A new ammonia-fueled engine project has been chosen for the UK’s Clean Maritime Demonstration Competition, as announced by sponsor MOL. The initiative is spearheaded by Carnot Ltd., which specializes in an innovative uncooled, ultra-high-temperature engine compatible with various renewable fuels.
Carnot Ltd.’s engine, constructed from industrial ceramics, overcomes the temperature limitations faced by traditional steel and cast iron engines. Unlike metallic components that require constant cooling—leading to efficiency losses—this design enhances power efficiency and reduces the need for additional cooling equipment such as pumps and radiators. Currently, the engine achieves approximately 70% efficiency when running on diesel, doubling the efficiency of standard automotive engines.
The company has previously secured multiple UK R&D grants for marine engine advancements, with the latest focusing on developing an ammonia-fueled auxiliary engine. This project will benefit from combustion simulation support from the University of Southampton, integration assistance from engineering firm Houlder, and marketing research from De Courcy Alexander. MOL will contribute insights on vessel operations.
This initiative is part of the UK’s strong commitment to maritime R&D, with the Department for Transport having allocated over $300 million in the past seven years for green maritime technology research.
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