MATHEMATICAL SIMULATION OF HEAT AND MASS TRANSFER, 
PHASE CONVERSIONS, AND SHRINKAGE FOR OPTIMIZATION 
OF THE PROCESS OF DRYING OF THERMOLABILE MATERIALS

N. I. Nikitenko, Yu. F. Snezhkin, and N. N. Sorokovaya

UDC 532.516:536.24

A mathematical model and a numerical method for calculation 
of the processes of heat and mass transfer, phase conversions, and 
shrinkage in drying of colloidal capillary-porous bodies are presented. 
The model and method allow one to conduct polyvariant calculation 
of the fields of temperature, volumetric concentration, and pressure 
in each of the components of the bound substance. A method of dehydration 
of thermolabile materials that makes it possible to minimize the time 
of drying and provide savings of energy and resources is presented.

Institute of Engineering Thermophysics, National Academy 
of Sciences of Ukraine, 2a Zhelyabov Str., Kiev, 03057, Ukraine; email: 
powder@kievweb.com.ua. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 78, No. 1, pp. 74-87, January-February, 2005. Original 
article submitted July 5, 2004.