Optimizing PCM Integrated Wall and Roof for Energy Saving in Building under Various Climatic Conditions of Mediterranean Region

Energy conservation in buildings has been the focus of many studies since nearly one-third global energy consumption is due to buildings. Phase change material (PCM) technology promises be an attractive solution for saving it a passive and effective technology, as demonstrated literature. Therefore, this study focuses on energy-saving performance PCM-integrated located Mediterranean climate reveal their potential. PCM integrated both external or internal south walls roofs under four different climatic conditions. EnergyPlus, which well-known building simulation software, adopted thermal analyses. The effects melting temperature, location layer wall, thickness layer, type envelope (wall roof), double-layer system wall are investigated. corresponding savings CO2 emission reductions obtained considered cases. results showed that up 41.6% reduction demand can depending application. Besides, with low temperature (21 °C) favored heating savings, while high (29 cooling savings. Moreover, provided higher than single-layer system, especially warm arid regions (Sousse Tozeur).