【摘要】 在现有的增压中冷柴油机结构不做变动和调整的情况下,分析了柴油和3种柴油醇(E10、E15和E20)在4种工况下的燃烧特性.研究表明:增压中冷柴油机燃用柴油醇燃料,随着柴油醇中乙醇含量的变化,滞燃期、放热率峰值和燃烧持续期等燃烧特性参数相应发生变化.在高速、高负荷时,乙醇燃料的优点对燃烧过程影响较大;在低速、低负荷时,乙醇燃料的缺点在燃烧过程中占主导地位.更多还原

【Abstract】 Without any change of the configuration for the turbocharged diesel engine with intercooler ,the diesel and three kinds of diesohol fuels (E10,E15 and E20) are analyzed for combustion characteristics at four kinds of engine modes .The results show that the parameters of the combustion characteristics such as periods of ignition delay , maximum value of heat release and combustion duration are changed as the ethanol volume concentration of diesohol fuel is changed . The advantages of ethanol fuel has a great effect on the combustion process at the high load of high speed, and the disadvantages of ethanol fuel play important roles at the low load of low speed.更多还原