进气温度对正庚烷HCCI燃烧特性影响研究  

Influence of Charge Temperature on N-Heptane Homogeneous Charge Compression Ignition Combustion Characteristics

作　　者：朱绍中[1] 常国峰[1] 周岳康[1] 

机构地区：[1]同济大学汽车学院,上海201804

出　　处：《内燃机工程》2008年第6期31-34,共4页Chinese Internal Combustion Engine Engineering

基　　金："973"国家重点基础研究发展规划项目(2001CB209206)

摘　　要：在一台燃烧边界条件可控的快速压缩机上对均质压燃燃烧方式(HCCI)下进气温度对燃烧特性的影响进行了研究。以正庚烷燃料为研究对象,在不同的进气温度条件下,通过对燃烧始点、燃烧持续期、燃烧放热率等参数的分析,得出了进气温度对HCCI燃烧特性的影响规律。试验结果表明:随着进气温度的升高,燃烧始点提前,燃烧持续期缩短,最高燃烧温度升高,放热率最大值增加。The effects of charge temperature on fuel combustion characteristics in HCCI mode were studied on a rapid compression machine which can provide controllable combustion boundary condition. N-heptane was tested as research objects under different charge temperature conditions. Through the observation of start of combustion, combustion duration, heat release rate, the effects of charge temperature on fuel combustion characteristics could be achieved. Experimental results show that with the increase of charge temperature, the predicted start of n-heptane HCCI combustion happers earlier, the peak value of heat release rate increases and combustion duration decreases.

关 键 词：内燃机 正庚烷 均质压燃 燃烧特性 快速压缩机 

分 类 号：TK434.6[动力工程及工程热物理—动力机械及工程]