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Metamaterial-Based Radiative Cooling: Towards Energy-Free All-Day Cooling

Author

Listed:
  • Byoungsu Ko

    (Department of Mechanical Engineering, Myongji University, Yongin 17058, Korea
    Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea)

  • Dasol Lee

    (Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea)

  • Trevon Badloe

    (Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea)

  • Junsuk Rho

    (Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
    Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea)

Abstract

In the light of the ever increasing dangers of global warming, the efforts to reduce energy consumption by radiative cooling techniques have been designed, but are inefficient under strong sunlight during the daytime. With the advent of metamaterials and their selective control over optical properties, radiative cooling under direct sunlight is now possible. The key principles of metamaterial-based radiative cooling are: almost perfect reflection in the visible and near-infrared spectrum (0.3–3 µm) and high thermal emission in the infrared atmospheric window region (8–13 µm). Based on these two basic principles, studies have been conducted using various materials and structures to find the most efficient radiative cooling system. In this review, we analyze the materials and structures being used for radiative cooling, and suggest the future perspectives as a substitute in the current cooling industry.

Suggested Citation

  • Byoungsu Ko & Dasol Lee & Trevon Badloe & Junsuk Rho, 2018. "Metamaterial-Based Radiative Cooling: Towards Energy-Free All-Day Cooling," Energies, MDPI, vol. 12(1), pages 1-14, December.
    • Handle: RePEc:gam:jeners:v:12:y:2018:i:1:p:89-:d:193712
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    References listed on IDEAS

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    1. Zhao, Dongliang & Martini, Christine Elizabeth & Jiang, Siyu & Ma, Yaoguang & Zhai, Yao & Tan, Gang & Yin, Xiaobo & Yang, Ronggui, 2017. "Development of a single-phase thermosiphon for cold collection and storage of radiative cooling," Applied Energy, Elsevier, vol. 205(C), pages 1260-1269.
    2. Aaswath P. Raman & Marc Abou Anoma & Linxiao Zhu & Eden Rephaeli & Shanhui Fan, 2014. "Passive radiative cooling below ambient air temperature under direct sunlight," Nature, Nature, vol. 515(7528), pages 540-544, November.
    3. Bartoli, B. & Catalanotti, S. & Coluzzi, B. & Cuomo, V. & Silvestrini, V. & Troise, G., 1977. "Nocturnal and diurnal performances of selective radiators," Applied Energy, Elsevier, vol. 3(4), pages 267-286, October.
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    1. Vilà, Roger & Medrano, Marc & Castell, Albert, 2023. "Numerical analysis of the combination of radiative collectors and emitters to improve the performance of water-water compression heat pumps under different climates," Energy, Elsevier, vol. 266(C).
    2. Vilà, Roger & Medrano, Marc & Castell, Albert, 2023. "Climate change influences in the determination of the maximum power potential of radiative cooling. Evolution and seasonal study in Europe," Renewable Energy, Elsevier, vol. 212(C), pages 500-513.
    3. Zhang, Shuai & Jing, Weilong & Chen, Zhang & Zhang, Canying & Wu, Daxiong & Gao, Yanfeng & Zhu, Haitao, 2022. "Full daytime sub-ambient radiative cooling film with high efficiency and low cost," Renewable Energy, Elsevier, vol. 194(C), pages 850-857.

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