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Abstract
A simplified model of calculating aerosol filtration in fluidized filters is proposed. Unlike earlier methods (Peters et al., 1982; Ushiki and Tien, 1984) which require compartment-to-compartment calculations, this method assumed that parameters which characterize fluidized bed structure, such as the volume fractions of the dense and bubble phases and the bubble diameter can be considered constant for the entire bed. Analytical solutions of effluent concentration and the total collection efficiency were obtained which correspond to two limiting situations regarding gas mixing in the dense phase. Comparisons between the analytical solutions and experimental data as well as results from more exact compartment-to-compartment calculations indicate that the simplified method gives results of reasonably good accuracy and is adequate for preliminary design calculations.