NEW TECHNIQUES FOR INVESTIGATING THE PROCESS OF DRYING

Abstract An attempt has been made to use radioactive tracers for a study of the drying-process mechanism. Two methods have been suggested for experimental investigation of the phase transition of moisture in the process of drying—a stationary and a non-stationary method. The influence of various parameters on the value of the phase-transition criterion was established experimentally by means of the two methods. An equation has been deduced allowing to compute the intensity of internal evaporation in any layer of the material.