F—T柴油/甲醇混合燃料的燃烧及经济性能影响研究

Influence of Fischer—Tropsch diesel/methanol blended fuel on combustion and economy characteristics of diesel engine

为研究小比例F—T柴油/甲醇混合燃料的燃烧及经济性能,配制F—T柴油/甲醇三种混合燃料(记为FM5、FM10、FM15)与0#柴油、F—T柴油进行对比试验研究。结果表明:相对于F—T柴油,混合燃料随着甲醇比例的增加,滞燃期延长,压力及压力升高率峰值增加,燃烧重心向上止点后偏移,燃油消耗率稍有上升,低负荷时高于0#柴油。

Combustion and economy characteristics of fueled with low proportion of Fischer—Tropsch（F—T）Diesel/Methanol Blended Fuel have been studied,three kinds of mixed fuel（FM5,FM10,FM15）were prepared by F—T Diesel/methanol mixture,compared with F—T diesel fuel and 0# diesel fuel.The results show that：Compared to the F—T diesel,blended fuel has longer ignition delay period,higher the cylinder pressure and the rate of pressure rise;while the center of the heat release rate is also delayed and much higher fuel consumption than 0# diesel oil at low load condition.