CAJ | 학술논문

提出了一个包含103组分和395个基元反应,能够较好描述多组分汽油替代燃料多环芳烃(PAHs)生成的化学动力学机理模型.计算结果与实验数据的对比表明,该机理能够准确地计算乙烯、甲苯、正庚烷预混火焰和正庚烷部分预混对冲火焰中 PAHs及其前驱物组分分布.虽然本文机理目前还无法直接应用于汽油燃烧过程的PAHs多维数值模拟,但与现有的汽油替代燃料PAHs机理相比,本文提出的机理规模更小,距离实际应用的目标更近.
제출료일개포함103조분화395개기원반응,능구교호묘술다조분기유체대연료다배방경(PAHs)생성적화학동역학궤리모형.계산결과여실험수거적대비표명,해궤리능구준학지계산을희、갑분、정경완예혼화염화정경완부분예혼대충화염중 PAHs급기전구물조분분포.수연본문궤리목전환무법직접응용우기유연소과정적PAHs다유수치모의,단여현유적기유체대연료PAHs궤리상비,본문제출적궤리규모경소,거리실제응용적목표경근.
@@@@A chemical kinetic model consisting of 103 species and 395 elementary reactions has been developed. This kinetic model wel describes the formation of polycyclic aromatic hydrocarbons (PAHs) for multi-component gasoline surrogate fuels. Model validation results showed that the predicted PAHs and aromatic precursors using this chemical mechanism were consistent with the experimental results in the premixed flame of ethylene, toluene, n-heptane, and the opposed flow flame of n-heptane. The mechanism is not yet applicable to multidimensional computational fluid dynamics simulations for PAH formation of gasoline combustion. However, compared with the existing kinetic model, the present kinetic model contains fewer species and reactions, so it is closer to the aim of a model for practical applications.