Thermal performance analysis of PCM-filled solar control elements that increase solar energy storage capacity on the interior surface of building glass facades in cold climates

Societies need energy to provide and sustain their social and economic development. Energy demand is also constantly increasing due to these developments. Therefore, energy conservation and the use of renewable energy sources have come to the forefront. Buildings, which have a large share in energy use in terms of sector, also have significant potential in the measures to be taken regarding energy efficiency. The outer shell and facade system play an important role in the design of energy efficient buildings. In the study; a system consisting of a test cabin, double and triple glazing, phase change material (PCM), solar control elements (GCE), artificial light source, temperature and light measurement elements was used. A total of 14 experiments were conducted in the study. This study aims to determine the thermal properties, energy storage and efficiency potentials of innovative solutions by using PCM filled GCE in double and triple glazing facade systems in order to increase the energy efficiency of buildings. The results of this study showed that there was an increase in thermal energy storage and heat transfer performance in the cases where triple glazing, PCM filling and horizontal positioning of 60 degree were used compared to the case where there was no GKE in the system. The results showed that the cooling period of the cabin interior temperatures in the C14 case was 35% longer than the C8 case in terms of the time it took to approach the initial temperatures to 2 0C.