Mass balance principle relies on drying and thermal evaporation from water-balancing compounds to the air as a mass transfer of heat from the air and get a heat transfer.
Drying of the principle of equivalence of mass and heat balance by the water evaporates into the air from a chemical mass transfer. And the heat from the air to the heat exchanger.
Drying based on the principle of mass balance and heat balance by water evaporation from the substance into the air as the mass transfer. Substance and heat from the air as heat transfer