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An experimental study of a direct injection compression ignition hydrogen engine

Lookup NU author(s): Jorge Gomes Antunes, Dr Rikard Mikalsen, Professor Tony Roskilly



This paper describes the development of an experimental setup for the testing of a diesel engine in the direct injection hydrogen-fuelled mode. Test results showed that the use of hydrogen direct injection in a diesel engine gave a higher power to weight ratio when compared to conventional diesel-fuelled operation, with the peak power being approximately 14% higher. The use of inlet air heating was required for the hydrogen-fuelled engine to ensure satisfactory combustion, and a large increase in the peak in-cylinder gas pressure was observed. A significant efficiency advantage was found when using hydrogen as opposed to diesel fuel, with the hydrogen-fuelled engine achieving a fuel efficiency of approximately 43% compared to 28% in the conventional, diesel-fuelled mode. A reduction in nitrogen oxides emission formation of approximately 20% was further observed.

Publication metadata

Author(s): Gomes Antunes JM, Mikalsen R, Roskilly AP

Publication type: Article

Publication status: Published

Journal: International Journal of Hydrogen Energy

Year: 2009

Volume: 34

Issue: 15

Pages: 6516-6522

Date deposited: 02/02/2010

ISSN (print): 0360-3199

ISSN (electronic): 1879-3487

Publisher: Elsevier


DOI: 10.1016/j.ijhydene.2009.05.142


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