Numerical study of a new ecological material in moroccan climate: CFD approach

Abstract

The thermal insulation of buildings based on ecological materials resets the excellent solution to decrease the impact of inorganic materials on the environment, using materials of biological origins, such as Durian, Bagasse, Date Palm, Pineapple Leaves, Wood fibers, etc. With their low intrinsic energy, they can improve the quality of the environment and the thermal and energetic performance of the building; for this reason, a comparative study is made numerically using a method of computational fluid dynamics (CFD) two-dimensional between a wall without insulation and a wall with insulation based on an ecological coating based on Aerosil, in the Moroccan climate, and precisely in the city of Ifrane which characters by a cold climate, the solution presented efficient energy savings during both winter and summer season. The results showed that the configuration with the insulation generates an energy saving of 14% during the winter and 61.1% during the summer. The interior surface temperature was reduced by about 4 °C during summer days and increased by about 2 °C during winter. The effect of thickness on energy sheathing increased from 61.1% to 88.2% during summer and from 14% to 47% during winter.