An experimental study of combustion and emissions in a spark-ignition engine fueled with coal-bed gas

Chengji Zuo, Yejian Qian, Jian Tan and Hongming Xu

Energy, 2008, vol. 33, issue 3, 455-461

Abstract: Coal-bed gas has been considered an attractive alternative fuel for internal combustion engines due to its abundant source and low emissions. In the present study, a combustion system with a swirl chamber has been developed for a spark-ignition engine using coal-bed gas. Detailed experiments have been carried out to investigate the combustion and emission characteristics of the engine operating with three different grades of coal-bed gas. The results have shown that this combustion system allows satisfactory operation of the engine with a wide range of methane content in the supplied coal-bed gas. For all tested conditions, the CO emission has a maximum value of 0.062%, and the HC emission is less than 380ppm. The NO emission increases with the engine load but is less than 1800ppm, demonstrating a great advantage of coal-bed gas as a relatively clean engine fuel.

Keywords: Coal-bed gas; Combustion and emission; Spark-ignition engine (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:33:y:2008:i:3:p:455-461

DOI: 10.1016/j.energy.2007.07.001

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