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:Â
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
Nighttime electric power generation at a density of 50 mW/m<sup>2</sup> via radiative cooling of a photovoltaic cell
TL;DR: In this article , a thermoelectric generator is used to harvest electricity from the temperature difference between the PV cell and the ambient surrounding, which can be used as a continuous renewable power source for both day and nighttime in off-grid locations.
Journal ArticleDOI
Integration of radiative sky cooling to the photovoltaic and thermoelectric system for improved space cooling
TL;DR: In this article, the feasibility of integrating the radiative sky cooling ability of common photovoltaic cells into the photivoltaic-thermoelectric cooler to further enhance the space cooling energy density is analyzed.
Journal ArticleDOI
Enhanced cooling by applying the radiative sky cooler to both ends of the thermoelectric cooler
TL;DR: In this paper, the authors proposed a 2RSC-TEC hybrid system, which allocates the radiative sky cooler (RSC) to both the cold side and hot side of a thermoelectric cooler (TEC) to improve the overall cooling performance and the key advantage lies in the viable passive process for heat dissipation at the TEC hot side.
Journal ArticleDOI
Janus Multilayer for Radiative Cooling and Heating in Double-Side Photonic Thermal System.
TL;DR: In this article, a double-side photonic thermal (DSPT) system was proposed, where the absorption spectra of both sides were designed to adapt to different temperature conditions.
Journal ArticleDOI
An all-day cooling system that combines solar absorption chiller and radiative cooling
TL;DR: In this article , a solar-driven absorption chiller and radiative sky cooling is proposed to realize 24-h continuous cooling with less floor space and smaller thermal storage, which can stably meet the cooling demand of 70 m 2 room while only needing half the floor area and a thermal storage tank that is 4 times smaller than the traditional PT-AC system.
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.