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Energy and the Environment, 1999

ISSN:
1-56700-127-0 (Print)

MODELING OF HEAT TRANSFER IN A GAS-SOLID BED

Z. Mansoori
Amirkabir University of Technology, Mechanical Engineering Department

M. Saffar-Avval
Amirkabir University of Technology, Department of Mechanical Engineering

Hassan Basirat Tabrizi
Amirkabir University of Technology

Abstract

A Lagrangian simulation for particle motion and heat transfer in a turbulent field is provided. The effect of interparticle heat transfer in the bed is studied. The results show that the contribution of particle heat conduction to heat transfer is important in fluidized bed at presence of random velocities. This contribution depends on the gas temperature, velocity and particle material, size and the ratio of hot to cold particle temperatures.