Mr. Golriz et B. Sunden, AN ANALYTICAL EMPIRICAL-MODEL TO PREDICT HEAT-TRANSFER COEFFICIENTS IN CIRCULATING FLUIDIZED-BED COMBUSTORS, Heat and mass transfer, 30(6), 1995, pp. 377-383
An analytical-empirical model was developed to predict local heat tran
sfer coefficients in circulating fluidized bed (CFB) combustors. The f
luid is considered to be composed of a dispersed phase and cluster of
particles. Both convection and thermal radiation are taken into accoun
t. The estimation of the parameters in the model is discussed and sugg
estions as well as a sensitivity analysis are given. The model is appl
ied to predict heat transfer coefficients on membrane walls of a CFB b
oiler for which an experimental investigation had been carried out pre
viously. The predictions were in good agreement with experimental resu
lts.