引燃柴油量对甲醇/柴油双燃料发动机性能和排放的影响  

Effect of Pilot Diesel Quantity on the Performance and Emissions of Dual Fuel Engine Operating with Methanol and Diesel

作　　者：邹洪波[1] 王利军[1] 刘圣华[1] 

机构地区：[1]西安交通大学汽车工程系,陕西西安710049

出　　处：《内燃机学报》2007年第5期422-427,共6页Transactions of Csice

基　　金：国家重点基础研究发展规划资助项目(2001CB209206)

摘　　要：在一台TY1100型直喷柴油机上,开展了引燃柴油量对柴油引燃甲醇双燃料发动机性能和排放影响的研究。试验结果表明:引燃柴油比例为28.9%~48.2%时,发动机可获得较好的动力性,甲醇质量掺比可达73.3%~83.2%。与原柴油机相比,双燃料发动机的碳烟排放大幅度下降,NOx排放降低,而HC和CO排放增加。高负荷时发动机有效热效率增加而CO排放基本相当。在同一引燃柴油量下,HC排放呈先增加后减少的趋势,增加引燃柴油量,可以提高发动机低负荷时的有效热效率和降低HC排放,但在全负荷时,会导致NOx排放增加。This paper investigated the effects of pilot diesel quantity on the performance and emissions of a dual fuel engine.Homogenous premixed mixture of methanol and air was introduced from the intake port and combustion was ignited by pilot diesel.Experimental results show that the brake power output of the dual fuel engine could reach or even exceed to that of original diesel engine when the ratios of pilot diesel are in the ranges from 28.9% to 48.2%.The ratios of methanol mass to the total fuel mass could be ...

关 键 词：引燃柴油量 甲醇 有效热效率 排放 双燃料发动机 

分 类 号：TK46[动力工程及工程热物理—动力机械及工程]