Results 121 to 130 of about 2,009 (153)

Critical sky temperatures for passive radiative cooling

Renewable Energy, 2023
Passive radiative coolers can preserve the surface temperature below ambient by simultaneously reflecting incoming solar radiation and emitting thermal radiation to the sky. Apart from thermo-optical properties of the materials, radiative cooling performance is affected by various environmental factors which determine the atmospheric transmittance.
Ross Y.M. Wong, C.Y. Tso, S.Y. Jeong, S.C. Fu, Christopher Y.H. Chao   +4 more
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Universal passive radiative cooling behavior of aerogels

Journal of Materials Chemistry A, 2023
The universal passive radiative cooling behavior of aerogels is revealed and their impact on thermal conductivity-related thermal insulation performance is investigated.
Bingjie Ma, Bing Wu, Peiying Hu, Ling Liu, Jin Wang   +4 more
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Hierarchical-morphology metafabric for scalable passive daytime radiative cooling

Science, 2021
A durable way to keep cool The fibers that make up textiles can be augmented to change how they interact with thermal radiation, but the resulting materials often are not durable. Zeng et al . developed a multilayer metafabric composed of a titanium oxide polylactic acid composite laminated with a ...
Shaoning Zeng, Sijie Pian, Minyu Su, Zhuning Wang, Maoqi Wu, Xinhang Liu, Mingyue Chen, Yuanzhuo Xiang, Jiawei Wu, Manni Zhang, Qingqing Cen, Yuwei Tang, Xianheng Zhou, Zhiheng Huang, Rui Wang, Alitenai Tunuhe, Xiyu Sun, Zhigang Xia, Mingwei Tian, Min Chen, Xiao Ma, Lvyun Yang, Jun Zhou, Huamin Zhou, Qing Yang, Xin Li, Yaoguang Ma, Guangming Tao   +27 more
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Passive radiative cooling of buildings [PDF]

The passive cooling of buildings by radiative heat loss has received comparitively little attention in comparison with passive solar heating. This is due, in part, to the more limited heat fluxes available, with consequently more severe constraints on system design.
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Radiative Passive Cooling for Concentrated Photovoltaics

2019
Photovoltaic (PV) cells have become an increasingly ubiquitous technology; however, concentrating photovoltaics (CPV), despite their higher theoretical efficiencies and lower costs, have seen much more limited adoption. Recent literature indicates that thermal management is a key challenge in CPV systems.
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Designing the Future of Cooling: Superhydrophobic Passive Daytime Radiative Cooling Systems

ACS Applied Materials & Interfaces
Passive daytime radiative cooling (PDRC) is a sustainable technology that reduces temperature by utilizing materials with high solar reflectance and thermal emittance to provide cooling without electricity. However, its performance is often compromised by dust and environmental contamination, with even minimal dust deposition (0.1 mg/cm2) reducing ...
Numan Ahmed, Xinhong Xiong, Luzhi Zhang, Fazli Sattar, Bo Chen, Tu Jing, Jiaxi Cui   +6 more
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Biomimetic Alumina Film for Passive Daytime Radiative Cooling

ACS Applied Materials & Interfaces
Passive daytime radiative cooling is receiving more and more attention as a cooling method that does not consume energy to cool objects. However, most radiative cooling materials require the mixing of multiple particles, which increases the manufacturing process requirements.
Chen Zhou, Changhui Fu, Guangyi Tian, Feifan He, Shaolong Huang, Zhiguang Guo   +5 more
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Passive sub-ambient daytime radiative cooling

OSA Advanced Photonics Congress (AP) 2019 (IPR, Networks, NOMA, SPPCom, PVLED), 2019
Passive daytime radiative cooling approaches primarily rely on spectrally selective surfaces whose performance is limited by heat gain due to solar absorption and parasitic conduction and convection. We propose and experimentally demonstrate a directional approach to perfectly reject direct solar radiation and an optically-selective thermally ...
Bikram Bhatia, Arny Leroy, Yichen Shen, Lin Zhao, Marin Soljačić, Evelyn N. Wang   +5 more
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Passive radiative cooling structure with vivid colors

Conference on Lasers and Electro-Optics, 2018
A colored passive radiative cooler can widen the applicability of passive cooling strategy. This photonic structure is based on 1D structure/thermal emitter polymer and can be easily fabricated by metal/dielectric deposition and polymer coating.
Gil Ju Lee, Hyun Myung Kim, Yeong Jae Kim, Young Min Song   +3 more
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Polyethylene fibers containing directional microchannels for passive radiative cooling

Materials Horizons
The fabric woven by polyethylene fiber containing directional microchannels has excellent radiative cooling and self-cleaning property. Therefore, PFCDM fabric shows huge potential in the field of radiative cooling and human thermal management.
Mengxia Sun, Fei Peng, Shanshan Xu, Xianhu Liu, Kun Dai, Guoqiang Zheng, Chuntai Liu, Changyu Shen   +7 more
openaire   +2 more sources