The effect of the phase change material on the hydric response of a building during the summer season of Tunisia

The best way to reduce the energy needs of a building is to reduce losses and therefore improve the thermal insulation of the walls. The study of the thermal inertia of buildings is a subject of major interest. Thermal insulation can significantly modify the thermal inertia of the building and is one of the solutions to improve the energy efficiency of the envelope. Ceiling insulation is considered the most effective solution given the amount of solar radiation to which this wall is exposed in summer. The aim of this work is to study the one-dimensional heat and mass transfer through a ceiling wall containing micro-encapsulated PCM (phase change concrete) under realistic climatic conditions based on meteorological data. This work relates to a numerical study based on the nodal method to predict the influence of the thickness of the MCP on the temperature of the interior air of a multilayer wall and on the energy consumption to maintain the desired set temperature in a building and the effect of the phase change on the hydric response for the summer period associated with the composite building envelope.