Low-carbon phase change concrete is a type of phase change thermal storage concrete prepared using low-carbon ce-mentitious materials and phase change aggregates.This type of concrete reduces the carbon emissions during the preparation process of phase change concrete.However,its actual energy-saving effect in buildings still requires systematic research.In this study,EnergyPlus software was used to design an office building model and HVAC operation system to calculate the impact of thickness and arrangement of low-carbon phase change concrete on HVAC energy consumption,and analyze its energy-saving effect in different climatic zones.The results show that the optimal construction thickness for low-carbon phase change concrete with a phase change temperature of 26℃ is 2～3 cm.The ideal placement of low-carbon phase change concrete is within the in-ternal partition walls of office buildings,and the best climatic zones for its application are summer hot-winter cold regions and summer hot-winter warm regions.
low-carbon phase change concreteoffice buildingair-conditioning energy consumptionnumerical simulation
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