Modeling of the fully developed zone in the riser of circulating fluidized beds

摘要: Cluster formation in the risers of circulating fluidized beds has been verified by experimental works different investigators. In this work, a model developed based on force and mass balances over riser core cross section order to characterize core−annulus structure fully zone cluster-based approach. The clusters are considered be spherical with constant diameter. Radial profiles cluster velocity, solid flux, solids holdup have obtained as intermediate variable. comparison is made between results data modeling reported literature. able explain satisfactorily, radius which key parameter flow estimated. could used understand bed largely adapted for industrial applications.