Numerical study of thermos physical properties of a hollow brick filled by the PCM

In this paper a numerical study of the thermos physical properties of the new material used in building is presented. the material proposed is the hollow brick with two kind of size,filled by phase change material of the paraffin kind in hollow area. the latter may increase the thermal inertia of the external walls in buildings. the numerical work used is based on the finite elements method. this study allows an approach on thermos physical properties for the proposed material,such as the effective thermal conductivity,the equivalent heat capacity,evaluation of heat flux and temperature fluctuation in indoor surface of the wall. the results obtained show that the hollow brick with paraffin could be a solution to increase thermal and energy efficiency in buildings. © 2017,university of mohammed premier oujda morocco.