Determination of effective moisture diffusivity and thermodynamic properties variation of regional wastes under different atmospheres

Moreover, the thermodynamic parameters and DTA curves were determined. ∆H values are positive in all cases, showing that the drying process is endothermic. ∆G are positive and ∆S negative, indicating that the process is non-spontaneous. DTA curves show that the drying process is endothermic, according with the calculated ∆H.