柴油机应用非标柴油—二甲醚混合燃料的性能研究  

Performance of Diesel Engine Fuelled with Non-standard Diesel-Dimethyl Ether

作　　者：王铁[1] 冯丹华[1,2] 王娜[1] 曹杰[1] 冯星[1] 郭鹏[1] 

机构地区：[1]太原理工大学车辆工程系,山西太原030024 [2]中国重汽杭州动力研发中心,浙江杭州311231

出　　处：《车用发动机》2011年第5期63-67,共5页Vehicle Engine

基　　金：山西省国际科技合作项目的资助(2008081017)

摘　　要：对非标柴油—二甲醚混合燃料在柴油机上的应用进行研究。结果表明:燃用D50混合燃料柴油机动力性略有下降,但是排放性能大为改善,尤其是烟度;调整供油提前角对D50柴油机的动力性影响不大,供油提前角14°曲轴转角时柴油机的排放性能最佳;采用EGR技术可有效地降低NOx排放,但是在大负荷下加大废气引入量将会导致燃烧恶化,炭烟排放也会急剧增加。The application of non-standard diesel-dimethyl ether to diesel engine was researched. The result shows the power of diesel engine fuelled with D50 blended fuel slightly drops, but the emission performance remarkably improves, especially for the smoke. The fuel supply advance angle has little influence on engine power and is 14° when the emission performance is optimal. Moreover, EGR can reduce the NO; emission effectively, hut leads to combustion deterioration, which makes the soot emission rapidly increase due to massive exhaust injection.

关 键 词：非标柴油 二甲醚 供油提前角 废气再循环 

分 类 号：TK421.6[动力工程及工程热物理—动力机械及工程]