Renewable wood-phase change material composites for passive temperature regulation of buildings

• DOI: 10.1016/j.nxmate.2024.100132
• Publication Date: 2024-01-25T13:22:37Z
• Authors: Oskar Leibnitz; Christopher H. Dr...; Sandro Stucki; Daniel Sanz-Pont; Tobias Keplinger; Ingo Burgert; Yong Ding
• Keywords: Phase-change material; Carbon Footprint

The buildings sector consumes a significant amount of raw materials and energy resources, with high-energy consumption environmental impact. To achieve net-zero emissions, it is crucial to address the substantial carbon footprint generated by in operation. A promising solution lies development renewable sustainable building capable efficiently storing thermal regulate indoor temperature without relying on operational (HVAC systems). Here we report wood-phase change material (PCM) composite, referred as PCM-wood, which holds potential for energy-efficient buildings. composite shows excellent regulation capability melting enthalpy 113 J g−1 at 22 °C solidification 114 21 °C. Despite some loss mass melting, PCM-wood showcases stable performance over 50 heating/cooling cycles wood modification does not negatively impact tensile strength material. Hence, combines structural efficient storage ability passively temperature, buffering fluctuations more than 6 Such passive strategy has significantly reduce help reducing mitigating CO2 emissions.