汽油机燃用2,5-二甲基呋喃的试验研究

分析比较了2,5-二甲基呋喃(DMF)与商用汽油的理化性能,研究结果表明,DMF的一些理化性能与汽油很接近。在1台单缸四行程汽油机上对DMF、汽油—DMF混合燃料以及汽油进行了试验研究,结果表明:在不改变汽油机点火提前角特性和供油系统规律的试验条件下,燃用DMF的动力性稍差于汽油,最大功率下降了10.5%,最大扭矩下降了2.3%;燃用DMF的燃油消耗率稍高于汽油,平均上升了18.6%;燃用DMF的HC和CO排放远远低于汽油,分别比汽油平均下降了31.9%和95.5%,但NOx和CO2排放则明显增加,分别比汽油平均上升了97.1%和28.1%;燃用DMF10和DMF30混合燃料的动力性能以及排放特性一般都是介于DMF和汽油之间。

Experimental Research on Gasoline Engine Fueled with DMF

The physicochemical properties of 2,5-dimethylfuran(DMF) and commercial gasoline were compared.The result shows that some physicochemical properties of DMF are similar to those of gasoline.Under the conditions of unchanging ignition advance angle and fuel supply system,DMF,gasoline-DMF blends and gasoline were researched on a single cylinder 4-stroke gasoline engine.The results show that the power performance of DMF is slightly inferior to gasoline and that the maximum power and maximum torque decrease by 10.5% and 2.3% respectively.The fuel consumption rate of DMF is slightly higher than that of gasoline and increases by 18.6% on average.The HC and CO emissions of DMF are lower than that of gasoline and respectively decrease by 31.9% and 95.5% on average,but the NOx and CO2 emission obviously increase and respectively increase by 97.1% and 28.1%.The power and emission performance of gasoline-DMF blends with DMF10 and DMF30 respectively are between those of DMF and gasoline.