Prediction of heat transfer coefficient between immersed surfaces and fluidized beds

An empirical model based on dimensional analysis has been developed,to pred ict the heat transfer coefficient in fluidized bed. To verify the model, a series of experiments were conducted in a cylindrical reactor, with an insi de diameter (I.D.) of 142 mm and a height of 1 m, having a spherical copper heater. Experiments were performed at agas velocity ranging from 0.02 - 1. 5 m/s, and for five different solid particles. The predicted results were c ompared with the data of the present experiments, as well as with models an d experimental data of other investigators. (C) 2000 Elsevier Science Ltd.