燃油硫含量对轻型柴油车颗粒物排放的影响研究  

Study on Influence of Diesel Sulfur Content on PM Emissions From Light Duty Vehicle

作　　者：刘双喜[1] 邵忠英[1] 高继东[1] 王建海[1] 

机构地区：[1]中国汽车技术研究中心试验研究所,天津300162

出　　处：《武汉理工大学学报（交通科学与工程版）》2010年第5期940-943,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：北京市科委重大项目资助(批准号:D0405002000022)

摘　　要：在底盘测功机上通过全流稀释取样法,对三种不同型号的轻型柴油轿车,分别采用硫含量为50mg/kg和350mg/kg的2种燃油进行法规循环测试.试验对比分析了装有颗粒捕集器后处理装置的车辆和没有后处理装置的车辆在分别不同燃油试验下的颗粒物数目及质量的排放情况.试验结果表明,在相同测试工况下,使用50mg/kg的燃油时,颗粒物质量的比排放要比使用350mg/kg燃油时降低30%以上,然而颗粒物数目排放却增加了近20%(无颗粒捕集器车辆);通过同型号的车对比试验,安装颗粒捕集器后,颗粒物数目排放降低率可达99%,质量排放降低率在90%以上.Three light-duty-diesel vehicles were tested on the chassis dynamometer through the legislation test cycle.The test aims to find out the difference of the particle emission when use different fuels which contains different sulfur content.Some of the tested vehicles are installed with after-treatment system of diesel paticulate filter（DPF）.The results show that,when using the 50mg/kg sulfur content fuel,the total particle mass emission will reduce 30percent more than that of using 350mg/kg, but the particle number emission is increased 20%（w/o DPF）.With the DPF,the particle number emission is reduced 99%,as well as the mass emission is reduced 90% more.

关 键 词：硫含量 轻型柴油车 颗粒物排放 粒径分布 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程] U473.9[机械工程—车辆工程]