考虑热解热的大颗粒煤热解过程计算模拟

Numerical Simulation of Large Coal Particle Devolatilizationin a Fluidized Bed Allowing for Devolatilization Heat

流化床中煤的热解，小颗粒煤和大颗粒煤经历不同的机理．本文考虑了热解热效应对煤颗粒温度分布和挥发物析出的影响，应用第一类边界条件对流化床中大颗粒煤的热解规律进行了计算模拟，并与以前的实验结果进行比较。

Devolatilization of large coal particles and small coal particles in a fluidized bed undergoes different mechanisms. The effect of devolatilization heat on temperature distribution and volatile release of large coal particle in a fluidized bed is accounted for and the simulation result is compared with the experimental result with good agreement.