重型柴油车实际道路排放颗粒物的粒度分布  

Size distributions of PM emissions from heavy-duty diesel vehicles on road

作　　者：高继东[1] 张远军[2] 李孟良[3] 秦孔建[3] 陈杰峰[2] 

机构地区：[1]天津大学内燃机燃烧学国家重点实验室,天津300072 [2]武汉理工大学汽车工程学院,武汉430070 [3]中国汽车技术研究中心,天津300162

出　　处：《吉林大学学报（工学版）》2008年第1期37-41,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：北京市科技计划重大项目(D0405002040411)

摘　　要：利用车载颗粒物测试系统对在实际道路上运行的重型柴油车的颗粒物排放用市内公交车测试循环进行了试验研究。粒度范围为0．007～10μm的颗粒物排放的粒度分布用一台低压电冲击器进行测量。结果表明：对于粒度为0．3μm以下的排放颗粒物数量，达到国Ⅲ排放限值的车（国Ⅲ车）比达到国Ⅱ排放限值的车（国Ⅱ车）平均高出23．8％；对于粒度为0．3μm以上的排放颗粒物数量，国Ⅲ车比国Ⅱ车平均降低27．4％，而在此粒度区间，国Ⅲ车颗粒物排放质量比国Ⅱ车的平均降低65．4％。The PM emissions from the heavy-duty vehicles which were compliant to the China emission standard stage Ⅱ and stage Ⅲ were tested on the road with the city bus driving cycle. The particle size distributions of the PM emissions in the range of 0. 007- 10 μm were measured by an electrical low pressure impactor. The test results showed that the average number concentration of the PM emissions with the size under 0.3 μm from the stage Ⅲ vehicles was higher by 23.8% than that from the stage Ⅱ vehicles. For the particles with the size above 0.3μm, the average mass concentration of the PM emissions from the stage Ⅲ vehicles was lower by 65. 4% than that from the stage Ⅱ vehicles, and average number concentration was lower by 27.4%.

关 键 词：动力机械工程 重型柴油车 颗粒物排放 道路试验 粒度分布 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]