STUDY OF HEAT AND MOISTURE DIFFUSION THROUGH A WALL EXPOSED TO SOLAR HEAT FLUX

A numerical study of the heat and mass transfer through a wall is proposed in this work. The studied wall is submitted to mass and heat convective exchange with the ambient. One of its sides is submitted to a variable solar heat flux. The computer program is used to compare the cases of coupling and no coupling heat and mass transfer through the wall under variable heat flux and ambient temperature. The temperature effect on the moisture diffusion and vice versa is presented for two usual materials. An optimal proposal can be clear from this study based on objectives which are mainly the reductions of energy consumption as it is for winter heating or summer cooling.