中国物理B ›› 2017, Vol. 26 ›› Issue (10): 104201-104201.doi: 10.1088/1674-1056/26/10/104201

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Diurnal cooling for continuous thermal sources under direct subtropical sunlight produced by quasi-Cantor structure

Jia-Ye Wu(吴嘉野), Yuan-Zhi Gong(龚远志), Pei-Ran Huang(黄培然), Gen-Jun Ma(马根骏), Qiao-Feng Dai(戴峭峰)   

  1. Guangzhou Key Laboratory for Special Fiber Photonic Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
  • 收稿日期:2017-05-11 修回日期:2017-07-11 出版日期:2017-10-05 发布日期:2017-10-05
  • 通讯作者: Qiao-Feng Dai E-mail:daiqf@scnu.edu.cn
  • 基金资助:

    Project supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2016A030313851) and the Provincial Undergraduate Training Program for Innovation and Entrepreneurship of Guangdong Province, China (Grant No. 201610574149).

Diurnal cooling for continuous thermal sources under direct subtropical sunlight produced by quasi-Cantor structure

Jia-Ye Wu(吴嘉野), Yuan-Zhi Gong(龚远志), Pei-Ran Huang(黄培然), Gen-Jun Ma(马根骏), Qiao-Feng Dai(戴峭峰)   

  1. Guangzhou Key Laboratory for Special Fiber Photonic Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
  • Received:2017-05-11 Revised:2017-07-11 Online:2017-10-05 Published:2017-10-05
  • Contact: Qiao-Feng Dai E-mail:daiqf@scnu.edu.cn
  • Supported by:

    Project supported by the Natural Science Foundation of Guangdong Province, China (Grant No. 2016A030313851) and the Provincial Undergraduate Training Program for Innovation and Entrepreneurship of Guangdong Province, China (Grant No. 201610574149).

摘要:

In this paper, an optical radiative cooler with quasi-Cantor structure is theoretically proposed and analyzed. This simple and symmetrically designed optical structure operates upon continuous thermal sources in diurnal subtropical conditions, and its efficiency is much higher than natural cooling, for instance, when operating upon a typical 323.15 K continuous thermal source with a wind speed at 3 m·-1, it can generate a net cooling power of 363.68 W·m-2, which is 18.26% higher than that of non-radiative heat exchange (natural cooling) under the same conditions. Additionally, several aspects are considered in its design to ensure a low cost in application, which is of great economical and environmental significance.

关键词: thin film, photonic quasicrystal, photonic crystal, nanophotonics, radiative cooling

Abstract:

In this paper, an optical radiative cooler with quasi-Cantor structure is theoretically proposed and analyzed. This simple and symmetrically designed optical structure operates upon continuous thermal sources in diurnal subtropical conditions, and its efficiency is much higher than natural cooling, for instance, when operating upon a typical 323.15 K continuous thermal source with a wind speed at 3 m·-1, it can generate a net cooling power of 363.68 W·m-2, which is 18.26% higher than that of non-radiative heat exchange (natural cooling) under the same conditions. Additionally, several aspects are considered in its design to ensure a low cost in application, which is of great economical and environmental significance.

Key words: thin film, photonic quasicrystal, photonic crystal, nanophotonics, radiative cooling

中图分类号:  (Optical system design)

  • 42.15.Eq
61.44.Br (Quasicrystals)