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本文在Fluent软件中嵌入自行编译的气固化学反应速率方程、相间传质、内热源项的UDF(User-defined Mode,用户自定义函数)程序,对化学链燃烧燃料反应器内甲烷与CuO-Al2O3载氧剂气固非均相还原反应进行了数值模拟。模拟结果与文献中的实验数据进行了对比,二者有着较好的一致性,获得了燃料反应器内载氧剂颗粒体积分率、气相反应物和生成物组分的摩尔浓度、气固化学反应速率及气固相温度及内热源的分布规律。
In this paper, a self-defined UDF (User-Defined Mode) program of gas-solid chemical reaction rate equation, interphase mass transfer and internal heat source is embedded in Fluent software to simulate the reaction between methane and CuO- Al2O3 gas oxygen carrier heterogeneous heterogeneous reduction reaction was carried out numerical simulation. The simulation results are compared with the experimental data in the literature, and the two have good agreement. The volume fraction of oxygen carrier in the fuel reactor, the molar concentration of gas phase reactants and product components, the gas-solid chemistry Reaction rate and gas-solid temperature and internal heat source distribution.