The state of knowledge on heat transfer in three-phase fluidized beds

Abstract

The review examines the literature involing 1,250 experimental data on heat transfer in gas-liquid-solid fluidization, including systems with surfactants and floating-bubble breakers. The general conclusions are that the overall heat transfer coefficient is an increasing function of the gas and liquid velocities, the size and density of the solid particles, the diameter of the column, and thermal conductivity and heat capacity of the liquid, but a decreasing function of the viscosity of the liquid and the diameter of any immersed cylindrical heating surface.