Transferência de calor e massa em sólidos heterogêneos com geometria arbitrária: uma análise concentrada.

Abstract

In this work mathematical models were developed to simulate the heat and mass transfer, during the drying process of heterogeneous solids of arbitrary shape basing on a lumped approach. The exact solutions to the ruling equations considering the phenomenon simultaneous and no simultaneous of heat and mass transfer arc presented and analyzed. Several results of moisture content and temperature of the solid during the process being varied the density, specific heat and latent heat of vaporization of the water in the solid are presented and analyzed. Any results obtained were compared with the analytical results reported in the literature for a homogeneous body. It was verified that the heterogeneity condition of the solid matrix assures a better analysis in the drying process, being obtained results more concrete ; nd physically real.