论文部分内容阅读
本文用有限反应速率二阶矩封闭模型对大速差射流燃烧室内煤粉燃烧过程中NO的生成进行了数值模拟，并将该模型的计算结果与Arrhenius模型的计算结果进行了比较，模拟结果表明，燃烧室中NO的生成是由燃料NO的生成机理来控制，Arrhenius模型计算得到的NO的浓度值高于有限反应速率二阶矩封闭模型的计算结果．
In this paper, the NO generation in the process of pulverized coal combustion in a large velocity difference jet combustor was numerically simulated by the second-order moment-limited closed-loop model of the reaction rate. The calculated results were compared with the Arrhenius model. The simulation results show that The formation of NO in the combustion chamber is controlled by the formation mechanism of fuel NO. The concentration of NO calculated by Arrhenius model is higher than that of the second-order moment closed-loop model with limited reaction rate.