Published 18 issues per year
ISSN Print: 1064-2285
ISSN Online: 2162-6561
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Numerical Simulation of Heat and Mass Transfer during the Process of Convective Drying in Stagnant and Fluidized Beds
ABSTRACT
Numerical simulation of the process of drying actual wet materials in stagnant and fluidized beds is presented. A mathematical model describing simultaneous unsteady heat and mass transfer between a gas phase and a solid phase during the process of convective drying in a stagnant and a fluidized bed has been developed. A two-phase fluidization model of a fluidized bed was used. New definition of the drying equation is introduced. Transport phenomena inside and outside dried material is discussed separately, because there are two types of resistance during convective drying of any actual material. An original technique based on experimental investigation of the kinetics of drying of an elementary stagnant bed of a given material was used for defining the coefficients of mass transfer inside the material dried. The mathematical model was tested on the available experimental data and very successfully varified.
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Stakić Milan, Urošević Tijana, Experimental study and simulation of vibrated fluidized bed drying, Chemical Engineering and Processing: Process Intensification, 50, 4, 2011. Crossref