气缸壁涂加催化剂对均质压燃发动机燃烧特性的影响  

The Influence of Cylinder Wall Coated with Catalyst on Combustion Characteristics of HCCI Engine

作　　者：曾文[1] 徐葳[1] 艾延廷[1] 马洪安[1] 

机构地区：[1]沈阳航空工业学院动力与能源工程学院,辽宁沈阳110136

出　　处：《车用发动机》2008年第4期44-47,52,共5页Vehicle Engine

摘　　要：通过修改CHEMKIN软件包中的SENKIN模块,对气缸壁涂有催化剂的HCCI燃烧过程进行了数值计算。对比分析了缸内催化燃烧对HCCI发动机的着火时刻及NOx排放的影响;讨论了当气缸壁涂有催化剂时进气温度、进气压力、压缩比、过量空气系数及催化剂种类等多种工况参数对HCCI燃烧特性的影响。Through amending the SENKIN code of CHEMKIN software package, the combustion process of homogeneous charge compression ignition （HCCI） engine whose cylinder wall was coated with catalyst was simulated. The influences of catalytic combustion on ignition timing and NO, emission of HCCI engine were analyzed. The influences of intake temperature, intake pressure, compression ratio, excessive air ratio and catalyst species on HCCI combustion characteristics were also discussed.

关 键 词：催化燃烧 均质压燃 表面反应动力学模型 气相反应动力学模型 数值模拟 甲烷 

分 类 号：TK421.2[动力工程及工程热物理—动力机械及工程]