摘要
文章利用大型化学反应动力学软件CHEMKIN结合二甲醚详细化学反应动力模型,对二甲醚的HCCI燃烧进行了模拟研究,从理论上研究探讨二甲醚的HCCI燃烧机理,构建了二甲醚HCCI反应动力学的简化模型,并研究了边界条件对二甲醚HCCI燃烧的影响。结果表明:随着进气温度的升高、过量空气系数的减小、初始压力的增加,缸内的最高压力升高,最大燃烧温度上升。
In this paper, the simulation study on dimethyl ether HCCI combustion is carried out by using the large-scalechemical reaction kinetics software CHEMKIN, combined with the detailed chemical kinetics model of DME. Thecombustion chemical kinetics mechanism of DME is investigated in theory. And the influences of boundary conditions onDME HCCI combustion are analyzed. The results show that the maximum pressure and the maximum temperature in thecylinder are increased with the increase of the intake air temperature, excess air coefficient and the increase of initial pressure.
作者
邓航
邓惜仁
吴先焕
Deng Hang;Deng Xiren;Wu Xianhuan(Automobile Chang’an University, Shaanxi Xi’an 710064)
出处
《汽车实用技术》
2016年第7期48-50,共3页
Automobile Applied Technology
