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

C Zuo, Y Qian, J Tan, Hongming Xu

Research output: Contribution to journalArticle

17 Citations (Scopus)

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 380 ppm. The NO emission increases with the engine load but is less than 1800 ppm, demonstrating a great advantage of coal-bed gas as a relatively clean engine fuel. (C) 2007 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)455-46
JournalEnergy
Volume33
DOIs
Publication statusPublished - 17 Mar 2008

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