抄録
The numerical simulation of pulverized coal combustion is performed to investigate the effect of gasification reaction on char reaction process in blowpipe. The results of the simulation without gasification were compared to those with gasification in gas and particle temperatures. Although the difference of gas temperatures between with and without gasification was small, that of particle temperatures was large at the downstream of blowpipe. This is because the gasification reaction occurs at the downstream of blowpipe, and the effect of gasification on small particles was larger than that of large particles. In addition, the conversion of fixed carbon with gasification was slightly higher than that without gasification. The results suggest that the inhibition effect due to the endothermic gasification is small and the char consumption in blowpipe increases by the gasification.
