Abstract:

The heat and mass transfer theory in the porous media and wood fields was studied, and introduced in detail to find a promising method in the process of particles drying with convection. Furthermore, according to un-equilibrium thermodynamics theory and phase equilibrium theory, an un-equilibrium thermodynamics model, which could describe the processes of the heat and mass transfer with convective drying outside the particles, and heat and moisture transfer inside the particles was given out.

Key words: wood particles, convective, porous media, heat and mass transfer, model