Выходит 12 номеров в год
ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508
Indexed in
MATHEMATICAL MODELING OF A PACKED BED DRYING WITH HUMID AIR AND SUPERHEATED STEAM
Краткое описание
A one-dimensional mathematical model describing heat and mass transfer during the drying of a packed bed of porous particles with superheated steam and humid air has been developed. This model is based on the scale-changing approach. During superheated steam drying, the expression of mass flux is based on the resolution of the single-particle model: new correlations of different drying parameters are determined, whereas in the case of humid air drying the expression of mass flux is deduced from the literature. The numerical resolution of macroscopic equations describing heat and mass transfer during the drying of a packed bed is carried out by the finite-volume method. Experimental data for spherical porous alumina particles reported in the literature were used for the validation of the model. When comparing superheated steam and humid air drying processes, a temperature has been determined at which the drying rates during these two processes are equal. This temperature is called the inversion temperature. The latter is about 418 K for corn.
-
Kraiem Amal, Madiouli Jamel, Sghaier Jalila, Shigidi Ihab, Significance of Bed Shrinkage on Heat and Mass Transfer During the Transport Phenomenon of Humid Air, Arabian Journal for Science and Engineering, 46, 6, 2021. Crossref