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选用了航空煤油(Jet A-1)的3种替代燃料(正癸烷、正癸烷与三甲基苯双组分混合燃料、正癸烷与甲苯双组分混合燃料),并详细分析了这3种替代燃料着火与燃烧的详细化学反应机理(正癸烷单组分燃料为67种组分与344个基元反应,正癸烷与三甲基苯双组分混合燃料为118种组分与527个基元反应,正癸烷与甲苯双组分混合燃料为84种组分与440个基元反应).对这3种替代燃料在激波管中的着火延迟特性及在预混燃烧炉中的预混燃烧过程进行了详细的数值计算,并与实验数据进行了对比分析.同时,比较分析了双组分燃料中两种组分体积分数对着火与燃烧特性的影响.结果表明:在预测Jet A-1航空煤油的着火特性与预混燃烧特性上,两种双组分混合燃料要优于正癸烷单组分燃料.同时,两种双组分混合燃料中两种组分的体积分数对燃料的着火与燃烧特性影响显著.
Three kinds of alternative fuels (n-decane, n-decane and trimethyl benzene two-component fuel, n-decane and toluene two-component fuel mixture) of jet kerosene (Jet A-1) were selected and analyzed in detail The detailed chemical reaction mechanisms of these three kinds of alternative fuels for ignition and combustion (n-decane one-component fuel reacted to 344 components with 67 components and n-decane mixed with trimethylbenzene to 118 components Points and 527 elements of reaction, n-decane and toluene two-component mixture of 84 components and 440 elements reaction.) The three alternative fuels in the shock tube ignition delay characteristics and in the premixed The premixed combustion process in the combustion furnace was numerically calculated and compared with the experimental data.At the same time, the influence of the volume fraction of the two components on the ignition and combustion characteristics was compared and analyzed.Results The results show that two kinds of two-component mixed fuels are superior to n-decane one-component fuels in predicting the ignition characteristics and premixed combustion characteristics of Jet A-1 jet fuel.At the same time, two kinds of two-component fuels The volume fraction of the components has a significant effect on the ignition and combustion characteristics of the fuel.