Study on Combustion Parameters of Liquefied Petroleum Gas Engine

In order to improve the power performance of liquefied petroleum gas engine, and the combustion parameters of liquefied petroleum gas engine are studied, and the relations among chemical energy, mechanical energy, and thermal energy during liquefied petroleum gas engine's combustion process are analyzed, a quasi-dimensional two-zone combustion model of liquefied petroleum gas engine is established. Utilizing both computer simulation analysis of the combustion model and experiment analysis of the liquefied petroleum gas engine, the study obtains the relation curve of cylinder pressure and temperature of burned mixture gas and crank angle. Based on experimental results with error range within 5%, it demonstrates the combustion model can reflect the variation relations among cylinder pressure and temperature of burned mixture gas and crank angle during the liquefied petroleum gas engine's combustion process. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of University of Electronic Science and technology of China (UESTC).