燃用丁醇汽油对发动机性能影响的实验研究

摘要

以汽油为基础油，按照体积分数配制出10％、20％和30％的丁醇汽油混合燃料，研究电喷汽油机在不作改动的情况下，燃用不同比例丁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，发动机燃用20％体积掺混率的丁醇汽油，混合燃料的功率和油耗下降并不明显，NOx增加幅度较小，而CO和HC排放明显降低。%Butanol/gasoline blended fuels were mixed based on volume ratio with gasoline (butanol accounted for 10% ,20% and 30% ,respectively) .The effects of different proportion blended fuels on the engine performance were investigated through experiments .The experiment results showed that ,without any modification of the engine ,power ,brake specific fuel consumption and NOx emission of engine fueled with 20% butanol/gasoline blended fuel did not worsen significantly ,but HC and CO emission reduced obviously .