The inspiration for this research was the numerical simulation of mass loss of char particles during its combustion in a CFB boiler. The mass loss was presented as the superposition of two separate processes i.e. combustion and surface erosion. The values obtained by the model and experimental data show a good level of conformity. INTODUCTION Until now many authors have attempted numerical simu...

Abstract Gasification and combustion are two common methods for Zhundong (ZD) coal utilization. In the present study, it was intended to investigate thermal transformation of Na in ZD at Lurgi fixed bed gasifier (Lurgi) circulating fluidized boiler (CFBB). To this end, raw samples before gasification gasified slags were gathered from Lurgi, combustion, burned slag, fly ash collected CFBB. The o...

Effects of rapid heat transfer using a fluidized bed on the heat-treating response of Al-Si-Mg alloys (both unmodified and Sr modified) were investigated. The heating rate in the fluidized bed is greater than in conventional air convective furnaces. Particle size analyses of eutectic Si showed that the high heating rate during fluidized bed solution heat treatment causes faster fragmentation an...