ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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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) |
Guangzhou Key Laboratory for Special Fiber Photonic Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China |
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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.
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Received: 11 May 2017
Revised: 11 July 2017
Accepted manuscript online:
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PACS:
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42.15.Eq
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(Optical system design)
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61.44.Br
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(Quasicrystals)
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Fund: 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). |
Corresponding Authors:
Qiao-Feng Dai
E-mail: daiqf@scnu.edu.cn
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Cite this article:
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) Diurnal cooling for continuous thermal sources under direct subtropical sunlight produced by quasi-Cantor structure 2017 Chin. Phys. B 26 104201
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