Journal ArticleDOI
A review of clear sky radiative cooling developments and applications in renewable power systems and passive building cooling
TLDR
In this paper, a detailed literature survey of published studies on selective emitter structures for daytime and nighttime cooling purposes is presented and a detailed energy analysis is performed identifying key performance indicators and evaluating the cooling performance under various conditions.About:
This article is published in Solar Energy Materials and Solar Cells.The article was published on 2018-05-01. It has received 240 citations till now. The article focuses on the topics: Radiative cooling & Passive cooling.read more
Citations
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Journal ArticleDOI
Switchable Cavitation in Silicone Coatings for Energy-Saving Cooling and Heating.
TL;DR: A switching strategy is described for efficient energy-saving cooling and heating based on the dynamic cavitation of silicone coatings that can be reversibly and continuously tuned from a highly porous state to a transparent solid.
Journal ArticleDOI
Recent Progress in Daytime Radiative Cooling: Is It the Air Conditioner of the Future?
Mattheos Santamouris,Jie Feng +1 more
TL;DR: In this paper, the authors present and analyze the main recent achievements concerning daytime radiative cooling technologies, including planar thin film radiators, metamaterials, 2 and 3D photonic structures, polymeric photonic technologies, and passive radiators under the form of a paint.
Journal ArticleDOI
A novel self-powering ultrathin TEG device based on micro/nano emitter for radiative cooling
TL;DR: In this article, an ultrathin TEG with a multilayer thermal emitter was fabricated to convert the heat from the environment into electricity directly by using radiative cooling, and the TEG-RC exhibited a continuous average 0.18mV output for 24h.
Journal ArticleDOI
Bioinspired "Skin" with Cooperative Thermo-Optical Effect for Daytime Radiative Cooling.
Meng Yang,Weizhi Zou,Jing Guo,Zhenchao Qian,Heng Luo,Shijia Yang,Ning Zhao,Lorenzo Pattelli,Xu Jian,Diederik S. Wiersma +9 more
TL;DR: Inspired by the cooperative thermo-optical effect in the fur of a polar bear, the authors developed a flexible, superhydrophobic, and reusable cooling "skin" by laminating a poly(dimethylsiloxane) film with a highly scattering polyethylene aerogel.
Journal ArticleDOI
Metamaterial-Based Radiative Cooling: Towards Energy-Free All-Day Cooling
TL;DR: In this article, a review of the materials and structures being used for radiative cooling is presented, and the future perspectives as a substitute in the current cooling industry are suggested as well.
References
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Thermal radiation heat transfer
Robert Siegel,John R. Howell +1 more
TL;DR: In this article, a comprehensive discussion of heat transfer by thermal radiation is presented, including the radiative behavior of materials, radiation between surfaces, and gas radiation, and the use of the Monte Carlo technique in solving radiant exchange problems and problems of radiative transfer through absorbing-emitting media.
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Thermal Radiation Heat Transfer
Robert Siegel,John R. Howell +1 more
TL;DR: In this paper, a comprehensive discussion of heat transfer by thermal radiation is presented, including the radiative behavior of materials, radiation between surfaces, and gas radiation, and the use of the Monte Carlo technique in solving radiant exchange problems and problems of radiative transfer through absorbing-emitting media.
Journal ArticleDOI
Passive radiative cooling below ambient air temperature under direct sunlight
TL;DR: An integrated photonic solar reflector and thermal emitter consisting of seven layers of HfO2 and SiO2 that reflects 97 per cent of incident sunlight while emitting strongly and selectively in the atmospheric transparency window demonstrates that the cold darkness of the Universe can be used as a renewable thermodynamic resource, even during the hottest hours of the day.
Journal ArticleDOI
Taming the blackbody with infrared metamaterials as selective thermal emitters.
Xianliang Liu,Talmage Tyler,Tatiana Starr,Anthony F. Starr,Nan Marie Jokerst,Willie J. Padilla +5 more
TL;DR: This Letter demonstrates, for the first time, selective thermal emitters based on metamaterial perfect absorbers and finds that emissivity and absorptivity agree very well as predicted by Kirchhoff's law of thermal radiation.
Journal ArticleDOI
Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling
Yao Zhai,Yaoguang Ma,Sabrina N. David,Dongliang Zhao,Runnan Lou,Gang Tan,Ronggui Yang,Xiaobo Yin +7 more
TL;DR: A metamaterial composed of a polymer layer embedded with microspheres, backed with a thin layer of silver, which shows a noontime radiative cooling power of 93 watts per square meter under direct sunshine is constructed.