International Scientific Journal
NUMERICAL SIMULATION OF REAL MATERIALS CONVECTIVE DRYING IN FIXED BED
Mathematical model describing unsteady one-dimensional heat and mass transfer between gas phase and dried material during convective drying process in fixed bed as well as the results of numerical simulation
obtained on the basis of mentioned model for the case of real materials are shown in this paper. Heat and mass transfer between gas phase and material surface are calculated using well known expressions for the case
of a fixed bed (available in the literature). Drying process inside dried material (internal moisture transport) is calculated using an original technique based on the modified Luikov drying theory. A control volume
numerical method is used for discretization of a system of the coupled partial differential equations, while the obtained linearized system of algebraic equations is solved by means of TDMA (TriDiagonal-Matrix Algorithm).
Results of numerical simulation are compared with the available corresponding experimental data. The mathematical model is successfully verified.
PAPER SUBMITTED: 1997-12-07
PAPER REVISED: 1998-04-24
PAPER ACCEPTED: 1998-05-13
PUBLISHED ONLINE: 2020-11-07
, VOLUME 1
, ISSUE Issue 2
, PAGES [59 - 70]