发动机燃用乙醇汽油和丁醇汽油性能的实验研究

Experimental research on performance of engine fueled with ethanol/gasoline and butanol/gasoline blend

按照体积分数分别配制出不同比例的丁醇汽油混合燃料和乙醇汽油混合燃料,研究电喷汽油机在不作改动的情况下燃用丁醇汽油和乙醇汽油混合燃料时的性能变化情况。研究结果表明:在不改变汽油机任何参数的情况下,与相同比例的乙醇汽油相比,发动机燃用丁醇汽油混合燃料热效率略有升高,功率略有下降,CO和HC排放相对于汽油的降低幅度低于乙醇汽油,NOx增加幅度低于乙醇汽油。

Butanol/gasoline and ethanol/gasoline blended fuels are mixed based on volume ratio with gasoline .The effects of blended fuels compared with gasoline on the engine performance are investigated through experiments .The experiment results show ：without any modification of the engine ,compared with same proportion of ethanol/gasoline blended fuel ,the thermal efficiency increases and the power of engine fueled with butanol/gasoline blended fuel decreases slightly ;compared with engine fueled with gasoline , HC and CO emission of engine fueled with butanol/gasoline blended fuel decreases more significantly ,but the increment of NOx emission is higher than that of ethanol/gasoline blended fuel .