Abstract
In this article, the impact of using two types of phase change material (PCM) in brick on a summer day according to the climate of Medina, Saudi Arabia is studied numerically. Bricks with square holes filled with PCM are used for the inner sidewall. For this purpose, PCMs P116 and n-Eicosane are used to fill the bricks and are compared with the case without PCM to determine its effect on the amount of heat flux passing (HEFP) through the wall. The effect of the different number of holes (1-4) is also studied. Two-dimensional numerical simulations are performed using the control volume method. The results show that the maximum HEFP through the wall occurs in the afternoon. Examination of the melting front of PCMs indicates that the melting front moves from the hot wall toward the cold wall and the type of PCM are important during the completion of the melting process. In general, the usage of PCM minimizes the amount of HEFP through the wall. The usage of PCM n-Eicosane results in a greater decrease in the quantity of heat flux going through the wall. At midday, the biggest drop in heat flow occurs. Using additional holes, particularly when the bricks are filled with PCM n-Eicosane, dramatically lowers the HEFP through the wall. The kind of PCM used to decrease flux going through the wall is determined by the temperature of the building.