小型发动机燃用汽油、乙醇和LPG燃料的排放对比  

Exhaust Emissions from a Small Engine Using Gasoline, Ethanol and LPG

作　　者：邓宝清[1] 李理光[2] 刘巽俊[3] 刘志敏[3] 王惠萍[3] 

机构地区：[1]吉林大学地面机械仿生技术教育部重点实验室,长春130025 [2]上海交通大学机械与动力工程学院,上海200030 [3]吉林大学汽车工程学院,长春130025

出　　处：《燃烧科学与技术》2003年第3期247-250,共4页Journal of Combustion Science and Technology

基　　金：~~

摘　　要：对125mL发动机燃用汽油、乙醇和液化石油气(LPG)时的过量空气系数和点火提前角与排放性能之间的关系进行了试验研究.指出了影响这三种燃料发动机排放性能的敏感参数的合理取值范围.通过对比试验,验证了发动机燃烧乙醇可降低NOx排放浓度.发动机燃烧LPG时,低HC排放的空燃比范围比其它两种发动机空燃比范围广.研究结果可为小型汽油、乙醇和LPG发动机参数匹配提供参考.Effects of excess air ratio Φa and ignition timing θ on CO,HC and NOx emissions from a 125 mL engine fueled with gasoline, ethanol and liquefied petroleum gas(LPG)were studied experimentally. It is proved that ethanol engine emits less NOx than equivalent gasoline and LPG engine, LPG engine emits less HC than equivalent gasoline and ethanol engine. Relatively optimal ranges of Φa and θ to lower emissions from gasoline, ethanol and LPG engines were proposed which is useful to their parameter matching and control.

关 键 词：乙醇发动机 汽油机 液化石油气发动机 排放 

分 类 号：TK417[动力工程及工程热物理—动力机械及工程]