A Mathematic Model with Total Differential Equations of Combustion in Thermobalance

摘要：

The combustion process of pulverized coal in thermobalance is simplified in the paper. And total differential equations based on conservation of mass, energy and species law are obtained. Then the combustion process in thermobalance is simulated by numerical method. The results of numerical simulation show that the anthracite combustion procedures of the volatile and fixed carbon are independent of each other. The combustion rate of bituminite is obviously higher than that of anthracite and lean coal. The volatile helps the ignition of the fixed carbon and causes the combustion of fixed carbon to be earlier. The peak values of rate of mass loss of different coals are the same. Simulation results agree with experimental results, and the results demonstrate the numerical method of the model can be used to quantificationally predict the process of combustion in therobalance.

关键词： Thermobalance Combustion Mathematic model Numerical simulation

作者: Na Li Ruwei Liu Qulan Zhou Tongmo Xu Shien Hui

作者单位: The state key laboratory of power engineering multiphase flow,Department of Energy and Power Enginee The state key laboratory of power engineering multiphase flow, Department of Energy and Power Engine

会议类型: 国际会议

会议名称: 2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)

会议地点: 杭州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）