Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling (IMAGE)

Shanghai Jiao Tong University Journal Center

Anisotropic Hygroscopic Hydrogels with Synergistic Insulation-Radiation-Evaporation for High-Power and Self-Sustained Passive Daytime Cooling

Caption

  • Inspired by human skin structure, an anisotropic synergistically performed insulation-radiation-evaporation cooler is developed by leveraging a dual-alignment structure both internal and external to the hydrogel.
  • The coordinated thermal and water transport through multiscale engineering contributed to high-power synergistic passive cooling in the day and water self-regeneration at night.
  • The cooler achieved an impressive cooling power of 311 W m-2 and an average sub-ambient cooling temperature of ~8.2 °C under direct sunlight.

Credit

Xiuli Dong, Kit-Ying Chan, Xuemin Yin, Yu Zhang, Xiaomeng Zhao, Yunfei Yang, Zhenyu Wang, Xi Shen.

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.

License

CC BY-NC-ND

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.