供油提前角对柴油/PODE_n混合燃料排放特性影响的试验研究  

Experimental Study on the Effects of Fuel Supply Advance Angle on the Emission Characteristics of Diesel/PODEn Blends

作　　者：赵玉伟 拉巴桑珠 袁华[2] 常超全 张星[2] 郑文秀 

机构地区：[1]空军工程大学防空反导学院,陕西 西安 [2]中国人民解放军77618部队,西藏 拉萨

出　　处：《环境保护前沿》2021年第6期1156-1163,共8页Advances in Environmental Protection

摘　　要：在一台云内动力2102QB型柴油机上开展了燃用柴油/PODEn混合燃料的台架试验研究,并分析了供油提前角对PODEn质量分数为30%时柴油机排放特性的影响规律。结果表明:PODEn的掺入改善了柴油机的排放,尤其是中低负荷工况下柴油机的CO排放和碳烟排放均处于较低水平。随着供油提前角的减小,HC排放呈现增加的趋势;CO排放也逐渐增加,中低负荷下增加的幅度较小,高负荷下增加的幅度较大;NOx排放逐渐降低,当供油提前角为18˚CA BTDC时,NOx排放降低的幅度较大;中低负荷工况下,碳烟排放没有明显变化,高负荷工况下,碳烟排放逐渐增多。Experimental study was conducted on a YUNNEI power 2102QB diesel engine fueled with diesel/ PODEn blends, and the effects of fuel supply advance angle on the emission characteristics of Diesel/PODEn blends (PODEn mass fraction of 30%) was studied in this paper. Results showed that the addition of PODEn improved the emissions of diesel engine, especially the CO and soot emission were at a low level at medium and low load conditions. With the decrease of fuel supply advance angle, HC emission increased. CO emission also increased gradually, with a small increase at medium and low load and a large increase at high load. NOx emission decreased greatly when the fuel supply advance angle is 18˚CA before top dead center (BTDC). The soot emission did not change significantly at medium and low load conditions and increased gradually at high load condition.

关 键 词：供油提前角 聚甲氧基二甲醚(PODE_n) 排放特性 柴油机 

分 类 号：TK4[动力工程及工程热物理—动力机械及工程]