甲醇发动机缸内燃烧过程的多维数值模拟  

Multi-dimensional numerical simulation of the combustion process on methanol-fueled engine

作　　者：张庆峰[1] 何祖威[1] 王迎[1] 

机构地区：[1]重庆大学动力工程学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2009年第12期1451-1455,共5页Journal of Chongqing University

基　　金：重庆市科技攻关计划资助项目(CSTC2006AB4005)

摘　　要：针对甲醇作为发动机燃料的优缺点,通过CFD程序KIVE-3V对仿真甲醇发动机的缸内燃烧过程进行了多维数值模拟。通过模拟,得到了缸内压力、温度等大量实时数据信息,为甲醇发动机的研究提供依据。计算表明,甲醇发动机与汽油机相比,最高燃烧压力和压力升高率均有所提高,但升压分布均匀,整体处于汽油机水平,不会影响发动机正常运转;由于甲醇较快的燃烧速率,较短的燃烧期,致使最高燃烧温度低于汽油机,从而更有利于NO生成量的降低;同时CO的生成量也低于汽油机。The paper concludes the characters of methanol as a fuel in engines. Based on the kiva-3v program,it conducts the multi-dimensional numerical simulation of the operation process in cylinder of a methanol-fueled engine to obtain the detail information and performance graphic charts,as well as the real time data of pressure,temperature and so on. It is helpful for the research on methanol-fueled engines. The results indicate that the methanol is a green alternative fuel and the methanol-fueled engines have steady operations and lower emissions by comparing the numerical results with the data of gasoline engine.

关 键 词：甲醇 发动机 燃烧过程 数值模拟 

分 类 号：TK464[动力工程及工程热物理—动力机械及工程]