Modeling The Drying Of An Unsaturated Deformable Porous Medium: Application To Packaging Kraft Paper

Abstract

Belgacem CHANDOUL, Maryem Fezai and Mouna Elakhdar

The main objective of this work is to model heat transfer in Kraft paper during drying. The model developed takes into account BIOT’s assumptions regarding a uniform temperature environment; the paper used is assumed to be thermally thin (BIOT number Bi < 0.1). The results obtained are experimentally validated. They allowed us to show that the two drying phases of Kraft paper can be modeled by a thermal capacitor that charges upon contact with the drying cylinder (phase 1) and discharges into the free space (phase 2).

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