CALCULATION OF TRUE HEAT AND MASS TRANSFER COEFFICIENTS BETWEEN PARTICLES AND A FLUIDIZED BED
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Interpolation formulas are derived to determine the active particle fluidized bed heat and mass transfer coefficients. The formulas agree fairly well with experimental data in a wide range of Archimedes numbers 102 < Ar < 10 and reflect the existence of non-coinciding limiting Nusselt and Sherwood numbers as Re -i 0 , as well as the difference in gas flow regimes around an isolated sphere and an active particle immersed in a fluidized bed.