EGR对DME发动机性能和排放的影响  

The Influence of EGR Rate on DME Engine Performance and Emission

作　　者：王铁[1] 王大书[1,2] 朱建军[1] 李文[1] 冯星[1] 郭鹏[1] 

机构地区：[1]太原理工大学,山西太原030024 [2]煤炭科学研究总院太原研究院,山西太原030024

出　　处：《车用发动机》2010年第4期61-65,共5页Vehicle Engine

摘　　要：开展了4100QBZL增压中冷发动机燃用D40二甲醚—柴油混合燃料时采用EGR技术对发动机动力性、经济性、燃烧和排放性能影响的试验研究。试验结果表明:EGR技术可以有效降低D40混合燃料发动机的NOx排放,EGR率越高,NOx排放改善越明显,但会不同程度恶化烟度、HC,CO等排放。The influence of EGR technology on power performance, fuel economy, combustion performance and emission per- formance was studied by experiment based on the turbocharged inter-cooling engine 4100QBZL fuelled with D40 DME-diesel blended fuel. The results show that the EGR technology can reduce the NO, emission effectively. The higher the EGR rate is, the less NOx emission is . However, the higher EGR rate will deteriorate the PM, HC and CO emission.

关 键 词：柴油机 废气再循环 二甲醚 燃烧 排放 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]