South Korean researchers working with Hyundai and Kia have developed a two-litre ammonia-fuelled engine that could power heavy-duty mobility applications and industrial generators.
The Korea Institute of Machinery and Materials (KIMM) said the direct injection ammonia engine, developed with Hyundai and Kia’s Electrification Engineering Center, could overcome challenges with gaseous ammonia fuel such as unstable fuel output and emissions, thanks to the use of high-pressure liquid injection.
The research team improved the engine’s ignition system and optimised the timing of fuel injection and valve operation. It also created an after-treatment system to “minimise” harmful NOx and unburnt ammonia emissions.
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