Experimental Study of the Thermal Behavior of Plaster Incorporating a Phase Change Material

Currently, energy storage is becoming a real challenge in the face of this industrial and economic technological transition. The orientation toward the strategy of use of phase change materials represents a sustainable and efficient alternative to reduce energy consumption in terms of heating during the period of intermittence and increase the thermal comfort of the occupants. This work is devoted to carrying out a set of experimental tests to study the storage capacity of two types of phase change materials in order to test the feasibility of integrating them into building elements. The results obtained show that the increase in heating power at 80 W/m2 causes a significant phase shift of about 8.59 ℃ between the inside and outside surfaces of the plaster wall and the paraffin wax (2). In addition, this type of phase change material can store a significant amount of heat during the charging phase, which leads to an increase in wall temperature of approximately 4 ℃ during the intermittent period compared to the reference case. Finally, the results of the phase change material thermal conductivity measurements obtained by the box method are in accordance with the values given by the manufacturer.