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A novel building envelope combined with jumping-droplet thermal diode: From theory to practice

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Listed:
  • Zhao, Hengxin
  • Wu, Yifan
  • Sun, Hongli
  • Lin, Borong
  • Zhong, Minlin
  • Jiang, Guochen
  • Wu, Shuangdui

Abstract

Intelligent and adjustable building envelopes have the advantages of energy saving and comfort compared to traditional building envelopes and are an important direction for future development in the field of building engineering. However, complex regulation principle and redundant control methods limit their practical applications and large-scale developments. To overcome these limitations, in this study, through the innovative application of superhydrophobic and superhydrophilic materials, we first fabricated jumping-droplet thermal diodes with a maximum unidirectional heat transfer capacity of 18.24–26.62 times with large dynamic adjustment margins. Then, the performance-adjustable building envelope combined with the jumping-droplet thermal diode was designed. The simulation results showed that the building envelope can achieve 19.81% energy saving in mild climate zones, and the cooling energy saving potential in different climate zones ranges from 12.11 to 22.11%. The adjustment capacity of the new building envelope is 3.34 times that of the traditional dynamic building envelope. This study promotes innovations in the field of building and materials and their simultaneous application, which can provide some practical references for switchable heat transfer building envelopes.

Suggested Citation

  • Zhao, Hengxin & Wu, Yifan & Sun, Hongli & Lin, Borong & Zhong, Minlin & Jiang, Guochen & Wu, Shuangdui, 2023. "A novel building envelope combined with jumping-droplet thermal diode: From theory to practice," Renewable Energy, Elsevier, vol. 218(C).
    • Handle: RePEc:eee:renene:v:218:y:2023:i:c:s096014812301193x
    DOI: 10.1016/j.renene.2023.119278
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    References listed on IDEAS

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