期刊
JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME
卷 141, 期 7, 页码 -出版社
ASME
DOI: 10.1115/1.4042915
关键词
ammonia; carbon; combustion; internal combustion engines; transport fuel
资金
- National Institute of Clean-and-low-carbon Energy in China
- University of Western Australia
- UWA Centre for Energy
Ammonia (NH3) is an excellent hydrogen (H-2) carrier that is easy to bulk manufacture, handle, transport, and use. NH3 is itself combustible and could potentially become a clean transport fuel for direct use in internal combustion engines (ICEs). This technical review examines the current state of knowledge of NH3 as a fuel in ICEs on its own or in mixtures with other fuels. A particular case of interest is to partially dissociate NH3 in situ to produce an NH3/H-2 mixture before injection into the engine cylinders. A key element of the present innovation, the presence of H-2 is expected to allow easy control and enhanced performance of NH3 combustion. The key thermochemical properties of NH3 are collected and compared to those of conventional and alternative fuels. The basic combustion characteristics and properties of NH3 and its mixtures with H-2 are summarized, providing a theoretical basis for evaluating NH3 combustion in ICEs. The combustion chemistry and kinetics of NH3 combustion and mechanisms of NOx formation and destruction are also discussed. The potential applications of NH3 in conventional ICEs and advanced homogenous charge compression ignition (HCCI) engines are analyzed.
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