Abstract

Particle-fluid heat/mass transfer in multi-particle systems is considered. The approach developed extends the model for momentum transfer reported in an earlier paper. Based on a boundary layer formulation for individual particles in the sphere assemblage, the model enables a unified consideration of fixed, distended, fluidized beds as well as isolated spheres. A simple relationship between the heat/mass transfer characteristics and the hydrodynamics of multi-particle systems is obtained by linking Sh/ Sh ε=1 to the voidage function. The predictions of the model are compared with reported experimental data.

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