JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, cilt.39, sa.2, ss.959-976, 2024 (SCI-Expanded, Scopus, TRDizin)
In this study, the effect of the phase change material integrated into the building exterior wall on the building energy performance was examined depending on its type, thickness and melting temperature. A villa housing project was modeled in three dimensions in the DesignBuilder energy simulation software, and two different types of external walls were designed by changing the position, thickness and melting temperature of the phase-changing materials inside the wall. The CO2 emission reduction amounts that phase change materials will provide according to the fuel type of the building's heating system have been calculated. The use of phase change materials on the external wall not only provides high heating and cooling energy savings, but also increases the thermal comfort of indoor environments by reducing temperature fluctuations. The 23 degrees C melting temperature of PCM performs quite well compared to other temperatures in reducing both cooling and heating energy needs. By increasing the number of layers of FDM, savings of 18.81% in heating energy and 22.85% in cooling energy can be achieved. Depending on the external wall type, phase change material type, different PCM thicknesses and melting temperatures, the total annual energy savings of the phase change material was found to be between 10,349.50-83,345.98 kJ/m(2).year, and the annual CO2 emission reduction according to fuel types was 0.672-14.284. Calculated as kgCO(2)/m(2).year.