基于快速压缩机的2-戊酮点火过程研究  

High Temperature Rapid Compression Machine Investigation of 2-Pentanoneon Ignition Process

作　　者：康仕卿 王颖迪[2] 孙雯禹 张鹏[1] 杨斌[1] KANG Shi-Qing;WANG Ying-Di;SUN Wen-Yu;ZHANG Peng;YANG Bin(Center for Combustion Energy and Department of Energy and Power Engineering,Tsinghua University,Beijing 100084,China;Center for Combustion Energy and Department of Automotive Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学能源与动力工程系,燃烧能源中心,北京100084 [2]清华大学汽车工程系,燃烧能源中心,北京100084

出　　处：《工程热物理学报》2020年第3期740-747,共8页Journal of Engineering Thermophysics

基　　金：国家自然科学基金重大研究计划培育项目(No.91541113).

摘　　要：酮类燃料可作为燃料添加剂和示踪剂在内燃机中使用,然而其化学反应动力学机理仍缺乏研究。本项工作利用快速压缩机实验平台测量了2-戊酮当量比为0.5和1.0,温度890~1130 K的条件下的点火延迟时间,并结合快速采样系统利用气相色谱对2-戊酮点火延迟过程中的7种中间组分进行了定性及定量测量。类比丁酮和1-戊烯的相关反应,构建了2-戊酮的详细化学反应动力学模型,与实验数据相对比,指出了模型优化的方向,为2-戊酮的进一步研究提供了基础.Ketones can be used in internal combustion engines as fuel additives and fuel tracers,but more researches need to be done to have a better understanding about those kinetic mechanisms.Rapid compression machine ignition delay times have been measured for 2-pentanone at equivalence ratios of 0.5 and 1.0,in the temperature range 890-1130 K.Seven intermediate species concentration has been quantified using gas chromatography combined with fast sampling system.2-pentanone kinetic model has been developed in analogy to 2-butanone and 1-pentene,and its simulation results have been compared with experiment results.

关 键 词：2-戊酮 快速压缩机 点火延迟时间 化学反应动力学模型 

分 类 号：TK421[动力工程及工程热物理—动力机械及工程]