UDC  66.047

D. Antonijevic and D. Voronjec

TEMPERATURE AND MOISTURE DISTRIBUTIONS INSIDE A LAYER OF MOIST MATERIAL PLACED ON A HOT ISOTHERMAL SURFACE
The problem of contact drying of a layer of moist material placed on a hot isothermal surface is considered. A system of heat and mass transfer equations and equations for the initial and boundary conditions are proposed. Luikov's theoretical approach is utilized, but all relevant thermophysical coefficients are considered to be fully dependent on the temperature and moisture content inside the material during the process. The model is solved numerically. Results for temperature and moisture distributions inside the layer of the material obtained using this model are compared to results obtained by solving a model with constant thermophysical coefficients in the governing equations, formed by using the same type of heat and mass transfer equations and equations for the initial and boundary conditions. The process is also examined experimentally, which provided results that enable verification of the proposed models. Department of Thermomechanics, Faculty of Mechanical Engineering, University of Belgrade, Yugoslavia; email: dantonij@visteon.com. Original article submitted November 10, 2000. IFZH7492020019 IFZH749209