... contributing to particulate drying in a bubbling fluidized bed and the mass transfer coefficient corresponding to each mechanism. In addition, a case study on measuring the overall mass transfer ... developing fluidized bed mass transfer coefficients, there still remain uncertainties with respect to the assumptions used in developing these coefficients. Mass Transfer in Multiphase Systems and ... fitCo,bedCo,bedCo,bed Fig. 14. Variation of water content during drying Mass Transfer in Multiphase Systems and its Applications 528 where the bubble diameter, bd , is given by modified Mori and Wen (1975)...