【摘要】 研究了柴油机燃用不同掺混比的乙醇 -柴油混合燃料对排气烟度以及 NOx 气体排放成分的影响 ,分析了尾气排放中甲醛、乙醛以及未燃乙醇的含量。研究结果表明 ,加入一定比例的乙醇可改善缸内燃烧过程 ,大幅度降低排气烟度 ,提高燃油经济性。随着乙醇掺混比的提高 ,尾气中 NOx 含量、乙醛和未燃乙醇的含量有明显增加更多还原

【Abstract】 This investigation is made on the combustion of ethanol diesel blend fuel in diesel engine and its influence on PM and NO x emissions.The concentrations of formaldehyde,aldehyde and unburned ethanol in the exhaust gas are analyzed.The results show that the blend of a proper proportion of ethanol to diesel fuel can greatly reduce smoke,improve engine performance and thermal efficiency.NO x,aldehyde and unburned ethanol emissions will increase when more ethanol is added to diesel fuel.更多还原