Numerical study of the efficiency of integrating phase change material into a clay-straw wall in the Drâa-Tafilalet region (Errachidia Province)

Abstract

The objective of this study is to evaluate the thermal performance of clay-straw walls of buildings integrating phase change materials (PCM). The influence of integrating different types of PCM in the envelope has been studied numerically in several studies. The optimal wall thickness with PCM integrated suitable for the climatic conditions of Errachidia has been studied. The heat balance equations for the different wall configurations are formulated and solved numerically under the same climatic conditions. The results obtained show that the integration of PCM in the clay-straw wall instead of the cement wall increases the heat flux density as a function of time by up to 80 % based on the thermal properties of the PCM and the environmental conditions of the study.