Engineering and Technology

Supercooled erythritol for high-performance seasonal thermal energy storage

S. Yang, H. Shi, et al.

Discover how seasonal storage of solar thermal energy using supercooled phase change materials (PCMs) like erythritol, stabilized by carrageenan, can revolutionize heating solutions. This innovative research by Sheng Yang, Hong-Yi Shi, Jia Liu, Yang-Yan Lai, Özgür Bayer, and Li-Wu Fan showcases an eco-friendly method for harnessing solar energy safely and effectively.

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Abstract

Seasonal storage of solar thermal energy using supercooled phase change materials (PCMs) is a promising approach for decarbonizing heating. Erythritol, a sustainable PCM, is stabilized in its supercooled state by adding carrageenan (CG), a bio-derived thickener. This composite PCM maintains a stable supercooled state below -30 °C, preventing accidental heat release. Ultrasonication effectively triggers heat release, demonstrating its potential for high-performance, eco-friendly seasonal solar energy storage.

Publisher

Nature Communications

Published On

Jun 11, 2024

Authors

Sheng Yang, Hong-Yi Shi, Jia Liu, Yang-Yan Lai, Özgür Bayer, Li-Wu Fan

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