铁基燃油添加剂对柴油机颗粒排放影响的试验研究  

Experimental Investigation on Influence of Fe-based Fuel Additive on Diesel Engine Particle Emission

作　　者：张川[1] 孟忠伟[1] 陈超[1] 王武先 张靖[1] 

机构地区：[1]西华大学汽车与交通学院汽车测控与安全四川省重点试验室四川汽车关键零部件协同创新中心,四川成都610039

出　　处：《车用发动机》2016年第2期88-92,共5页Vehicle Engine

基　　金：国家自然科学基金资助项目(51106130);教育部"春晖计划"合作科研项目(Z2014058);发动机燃料电控系统及尾气后处理系统产业集群项目(成财教[2013]265);四川省教育厅青年基金项目(12ZB138);西华大学重点科研基金项目(Z1120319);西华大学研究生创新基金项目(ycjj2015040);四川省重点科技项目(2011JYZ014)

摘　　要：基于发动机试验台架,对柴油中添加微量的铁基燃油添加剂进行了试验,从颗粒物数量浓度和粒径的分布特性、排气烟度、颗粒物的氧化特性等方面研究了燃油添加剂对柴油机颗粒物排放的影响。研究结果表明:燃油添加剂能降低柴油机排气温度和排气烟度。加入添加剂后,核模态颗粒数量浓度增加,峰值粒径也增加;积聚态颗粒数量浓度无明显变化;颗粒物总数量浓度增加,但添加剂浓度对颗粒数量浓度影响较小。添加剂使颗粒物中SOF含量增加,同时也使得微粒的氧化表观活化能和起燃温度都降低。Through adding a little Fe-based fuel additive into diesel fuel,the influences of additive on particle number concentration,size distribution,exhaust smoke and oxidation of particulate matter were researched on a test bench.The results show that both engine exhaust temperature and exhaust smoke decrease after adding the fuel additive.The number concentration and peak size of nuclear mode particle increase and the number concentration of accumulation mode particle hardly changes.The addition of fuel additive leads to the increase of total number concentration of particle,but additive concentration has little influence on number concentration.In addition,the fuel additive leads to the increase of SOF content in particle and the decrease of intrinsic activation energy and ignition temperature of particle oxidation.

关 键 词：柴油机 颗粒 燃油添加剂 粒径分布 数量浓度 氧化特性 

分 类 号：U473.5[机械工程—车辆工程]