大分子碳氢燃料富燃料燃烧反应机理研究

This project aims to explore the reaction mechanisms of fuel-rich combustion of large hydrocarbon fuels. Advanced theoretic methods will be adopted to calculate key thermodynamic and kinetic parameters for fuel cracking. Using our previously established experiment setup, temperature, concentration of major gas products, and soot particle size distributions will be measured for a series of fuel-rich laminar premixed flames of a few representative large hydrocarbons. Chemical kinetics modeling will be performed to predict against literature and our experimental data. Soot models will be included to predict soot particle size distributions. Using a variety of advanced methods, it is desirable to improve the fuel-rich combustion reaction mechanisms of large hydrocarbon fuels, so that they can accurately predict the temperature and the composition of the main gaseous species and particulates.

本项目旨在探究大分子碳氢燃料富燃料燃烧反应机理。将采用先进的理论方法计算得到大分子裂解成小分子过程中关键的热力学和动力学参数；利用我们前期已搭建的燃烧实验平台，选择几个代表性的大分子碳氢化合物，测量它们层流预混富燃料火焰中的主要气相产物以及碳烟的粒径分布；对文献及本项目获得的实验数据进行化学动力学模拟，并结合碳烟模型模拟实验测得的碳烟颗粒信息。本项目采用一系列先进的方法，预期完善大分子碳氢燃料富燃料燃烧反应机理，使之能准确预测温度、主要气相组分及颗粒浓度。

本项目探究了大分子碳氢燃料富燃料燃烧反应机理。采用先进的理论方法计算得到了大分子裂解成小分子过程中关键的热力学和动力学参数；利用我们前期已搭建的燃烧实验平台，选择了几个代表性的大分子碳氢化合物，研究了层流预混富燃料火焰中碳烟的粒径分布、有效密度及颗粒形貌变化规律；对实验数据进行化学动力学模拟，并结合碳烟模型模拟了实验测得的碳烟颗粒信息。本项目的研究成果丰富了我们对大分子碳氢燃料富燃料燃烧反应机理的认识，为模型发展提供了重要的理论和实验数据。