Drying process models for a multi-component system of capillary-porous structure based on thermodynamic relationships of mixture theory

In this work, the main statements are formulated and fundamental thermodynamic relations for moisturized capillary-porous deformable systems are obtained when describing them using continuum representations. Possible methods of choosing the parameters of the local thermodynamic state of a solid deformable multi-component system are presented, being consistent with their choice of the liquid (gaseous) phase. A complete system of equations is constructed to describe the drying process of dense packing of capillary-porous materials, based on the approaches of the theory of the mixtures of porous and dense packing of disperse materials of multicomponent three-phase media.

There have been analyzed the influence of the external heat flow, the initial volumetric moisture saturation on changes in temperature, volumetric moisture saturation, and air density in body pores in time by the example of conductive drying.