Radiation Heat Transfer in Circulating Fluidized Beds

Prediction of heat transfer between bed walls and adjacent clusters is a challenging problem especially for heat temperature applications. Radiation heat transfer is an important component. An accurate analysis must account for the radiation interactions between elements of the cluster at different distances from the wall. A new model that properly accounts for conduction and radiation within the cluster is compared to several mechanistic models from the literature. Substantial discrepancies are found, requiring a better understanding of the cluster physical behavior at the wall