Passive study of thermal inertia and thermal behavior of two locals ‘test’ with and without PCM located in Casablanca city

To highlight the contribution of the PCM in terms of thermal inertia in the building, we conducted a comparative study of passive heat balance in two cavities scale 1 built in the Faculty of Sciences Aïn Chock, Casablanca. The experimental consist of two identical cells, the reference cavity is standard and the other cavity incorporate a phase change material (PCM) which fusion begins at a temperature of 22°C and ends at about 45°C. In this experimental and preliminary study, we equipped the two cells by a set of thermocouples and equipment for measuring the necessary physical variables for the identification of the thermal efficiency of the cell with MCP. The results of this study show that, first, the oscillation amplitude of the inside temperature decreases greatly in the cavity with PCM. On the other hand, there is time shift (delay) between these oscillations and those of the internal temperature of the reference cavity. This shows the ability of PCM to increase the thermal inertia of the walls.