Phase Change Energy Storage Building Material has been found to be a unique material that can reduce electricity consumption while maintaining a satisfactory level of thermal comfort. It consists of the advantages of both ordinary building materials and phase change materials, which absorb and release an appropriate amount of heat energy and can be used along with other traditional building materials. Besides, it does not require special knowledge and skillsets for the installation and is able to be produced with standard production facilities. All these features make it competitive in terms of cost-effectiveness.

The solid-liquid phase change requires absorption or release of energy, and this is the stage when energy is stored. If the phase transition of a material takes place at around 20 ℃, it would then absorb the heat energy when the temperature is higher than that and release heat energy when the temperature is below the threshold. Thus, the latent heat thereof could help reduce the energy consumption of air-conditioning.

Learn more from the full article (in Chinese only) written by Kenny Siu, Senior Advisor of AEC Group, published on Sing Pao on 10 January.