新型含氧混合燃料对柴油机燃烧和排放的影响  

The Influence of New-typed Oxygenated Fuel Blends on Combustion and Emission for Diesel Engine

作　　者：何建宏 袁晓东[2] 郭和军 刘圣华[3] 曾庆平 

机构地区：[1]西安洪庆高科技研究所,陕西西安710025 [2]海军后勤技术装备研究所,北京100072 [3]西安交通大学能源与动力工程学院,陕西西安710049

出　　处：《车用发动机》2008年第1期88-91,共4页Vehicle Engine

基　　金：中国博士后科学基金资助(20060400998)

摘　　要：进行了丙二醇单丙醚(PGPE)/乙二醇二甲醚(EGDE)混合物用作柴油机含氧燃料的研究,对比了柴油机燃用柴油、PGPE/EGDE体积分数分别为15%和25%的混合燃料时的燃烧和排放特性。试验表明PGPE/EGDE混合燃料的燃烧特性与0号柴油相比,滞燃期、燃烧持续期和热效率等差异较小,最高燃烧压力小幅下降;显著降低柴油机中高负荷时的碳烟和CO排放,降幅分别可达73.9%和37.5%,NOx排放无显著变化,但HC排放增加。The blends of propylene glycol monopropyl ether （PGPE） and ethylene glycol dimethyl ether （EGDE） used as oxygenated fuel blends were researched, and the comparisons of combustion and emission characteristics for diesel engine fueled with 0 # diesel and PGPE/EGDE blend fuels whose volume fractions were 15% and 25% respectively were made. The results showed that, the ignition delay period, combustion duration and brake thermal efficiency weren＇t changed obviously, the maximum in-cylinder pressure was slightly decreased, the soot and CO emissions were obviously reduced by 73.9% and 37.5% respectively at the medium and high loads, the NOx emission wasn＇t increased or decreased, and the HC emission was increased when the engine was fueled with PGPE/EGDE blend fuels.

关 键 词：柴油机 含氧燃料 混合燃料 燃烧性能 排放 

分 类 号：TK411.2[动力工程及工程热物理—动力机械及工程]