A Study on the Formation of PAHs in the Internal Combustion Engine

关于纳米颗粒在内燃机中的生长，从燃料的点火和燃烧开始，人们对以下几点知之甚少；研究了真实燃料的着火机理，以及与纳米颗粒前驱体聚芳烃的生成密切相关的不饱和物质的反应机理。假设正庚烷、异辛烷和甲苯的三元混合物为最小替代燃料，是模拟汽油燃烧的模型燃料。本研究的目的是建立汽油替代燃料在发动机环境下氧化的详细化学动力学模型。该模型是在文献数据和量子化学计算的基础上建立的。所提出的汽油替代燃料模型包含了发动机环境下的低温氧化动力学，这是很重要的。为获得模型验证所需的点火延迟时间等测量数据，设计开发了高压激波管和定容室。

On the growth of nano-particles in the internal combustion engines starting from the ignition and combustion of fuels, following points were little known; the ignition mechanism of real fuels, and the reaction mechanism of unsaturated species which strongly related to the production of poly aromatic hydrocarbons, the precursor of the nano-particle. The ternary mixture of n-heptane, iso-octane, and toluene is assumed to be a minimum surrogate fuel, which is a model fuel for the combustion simulation of gasoline. The goal of this study is the development of the detailed chemical kinetic model for the oxidation of gasoline surrogate fuels under the engine environment.The model was constructed based on the literature data and the quantum chemical calculations. The proposed gasoline surrogate fuel model includes low temperature oxidation kinetics, which is important under the engine environment. And, to obtain the measurement data such as ignition delay times for the validation of the model, high-pressure shock tube and constant volume chamber were designed and developed.