A modelling study to the heat transfer between immersed surfaces and large-particle fluidized beds

A new theoretical model is proposed for the heat transfer between immersed surfaces and large-particle fluidized beds. The heat transfer of the emulsion phase to the immersed surface is treated as the sum of the convective part of the interstitial fluid flow and the conductive part of the solid particles. The heat transfer of bubbles to the surfaces is also considered. The theoretical calculating formulae obtained are in fairly good agreement with experimental data in a large region.