Simulação numérica da transferência de calor na madeira gombeira

Abstract

For improvement of the wood drying processes are needed experimental analyzes and the use of physical processes’ governors laws. The models used in the initial heating, the first stage of drying, express transient heat conduction problems and simplified boundary conditions, which for simplified cases have analytical solutions. In this work, a mathematical modeling of the transient heating of a wood board was made using empirical equations to calculate the thermal properties of the material. For the solution of the model, an algorithm based on the discretization method of parabolic partial differential equations was created using the explicit method. The temperature distribution in the study body was obtained across the time. The heating was simulated for different thicknesses, specific masses and some temperature profiles were calculated. It was verified that the method has low error and can be expanded to foment the decision about program of drying program.