Effect of different building materials on conjugate heat and mass transfer

A numerical analysis of the effect of heat conduction of different building materials on conjugate heat and mass transfer in a square cavity is presented. The air fluid inside the cavity is contaminated with Carbon Dioxide (CO 2 ). The governing equations of mass, momentum, energy and concentration with a turbulent k-e model were solved by the finite-volume technique. From the thermal point of view, case A (adobe block) was the optimal configuration in order to reach comfortable conditions. In general, the case B (red brick) was the best choice for air quality purposes with a difference of 200 ppm with respect to other building materials for all Rayleigh numbers under study.