摘要
通过非道路车用柴油机台架试验,利用静电低压撞击器（ELPI）对其排气颗粒粒径分析后发现：非道路车用柴油机排气颗粒物主要集中在粒径为0.05-1μm的累积模式;高负荷、中高转速下颗粒浓度最大,低负荷低转速时粒径尺寸最小;一定转速下,较低负荷时颗粒浓度及粒径都比较小,随着负荷的增加粒径增大。对于非道路车用柴油机,控制微小颗粒生成是控制颗粒物排放的主要研究方向。
The particle size emitted from a non-road diesel engine in bench test was analyzed using the electrical low pressure impactor（ELPI）. It is found that the particle size mostly concentrates in the range of 0.05～1.0μm（accumulative mode）, and the maximal number concentration occurs under high load and middle speed and the minimal size of the particles under low load and speed. While at a constant speed, the number concentration is lower and the particle size is smaller under low load, and both are increasing with the load adding. So the particle emission research for non-road diesel engine should b~ focused on controlling formation of the smaller size particles less than 1μm.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2010年第3期44-47,共4页
Chinese Internal Combustion Engine Engineering
基金
中国博士后科学基金资助(20070420301)
