Results 11 to 20 of about 97,119 (315)

Radiative cooling, heating and thermal conduction in M87

The Astrophysical Journal, 2004
The crisis of the standard cooling flow model brought about by Chandra and XMM-Newton observations of galaxy clusters, has led to the development of several models which explore different heating processes in order to assess if they can quench the ...
Allen S. W., Brighenti F., Churazov E., De Grandi S., Fabio Pizzolato, Feretti L., Nulsen P. E. J., Sabrina De Grandi, Silvano Molendi, Simona Ghizzardi   +9 more
core   +3 more sources

Energy-efficient thermally smart windows with tunable properties across the near- and mid-infrared ranges [PDF]

Nanophotonics
Space heating and cooling account for approximately 15 % of the world’s energy consumption, underscoring the pressing need for improved thermal management.
Legendre Julien, Papadakis Georgia T.
doaj   +2 more sources

Hybrid concentrated radiative cooling and solar heating in a single system

Cell Reports Physical Science, 2021
Summary Radiative cooling is an emerging sustainable technology that does not require electricity to function. However, to realize sub-ambient cooling, the effects of the undesired incident solar energy must be minimized. Considering an ideal blackbody radiator at 300 K, the maximum cooling power density is ∼160 W/m2.
Zhou, Lyu, Song, Haomin, Zhang, Nan, Rada, Jacob, Singer, Matthew, Zhang, Huafan, Ooi, Boon S., Yu, Zongfu, Gan, Qiaoqiang   +8 more
openaire   +3 more sources

Hierarchically structured, Janus optical nanoengineered wastepaper for switchable radiative cooling/heating

Carbon Energy
Switchable radiative cooling/heating holds great promise for mitigating the global energy and environmental crisis. Here, we reported a cost‐effective, high‐strength Janus film through surface optical engineering waste paper with one side decorated by a ...
Zifan Song, Zipeng Zhang, Xueting Zhang, Jingyang Liu, Wanjie Wang, Jianfeng Wang, Xiuxiu Jin   +6 more
doaj   +2 more sources

Controlling radiative heat flows in interior spaces to improve heating and cooling efficiency [PDF]

iScience, 2021
Heating and cooling in buildings account for nearly 20% of energy use globally. The goal of heating and cooling systems is to maintain the thermal comfort of a building's human occupants, typically by keeping the interior air temperature at a setpoint.
Jin Xu, Aaswath P. Raman
openaire   +3 more sources

Dynamic thermal radiation regulation for thermal management

Next Energy, 2023
With the improvement of living standards, energy consumption for heating and cooling is increasing. Traditional heaters or coolers (air conditioners etc.) consume lots of energy and only transfer heat to different places on Earth, which increases the ...
Na Guo, Ziying Zhao, Hongjie Yan, Meijie Chen   +3 more
doaj   +1 more source

The emergence of a new wintertime Arctic energy balance regime

Environmental Research: Climate, 2023
The modern Arctic climate during wintertime is characterized by sea-ice cover, a strong surface temperature inversion, and the absence of convection. Correspondingly, the energy balance in the Arctic atmosphere today is dominated by atmospheric radiative
O Miyawaki, T A Shaw, M F Jansen
doaj   +1 more source

Tug‐Of‐War on Idealized Midlatitude Cyclones Between Radiative Heating From Low‐Level and High‐Level Clouds

Geophysical Research Letters, 2023
We present baroclinic life‐cycle simulations with two versions of the atmosphere model ICON to understand how cloud‐radiative heating and cooling affect an idealized midlatitude cyclone. Both versions simulate the same cyclone when run without radiation,
Aiko Voigt, Behrooz Keshtgar, Klara Butz
doaj   +1 more source

Dual‐Mode Integrated Janus Films with Highly Efficient NaH2PO2‐Enhanced Infrared Radiative Cooling and Solar Heating for Year‐Round Thermal Management

Advancement of science, 2023
The currently available materials cannot meet the requirements of human thermal comfort against the hot and cold seasonal temperature fluctuations. In this study, a dual‐mode Janus film with a bonded interface to gain dual‐mode functions of both highly ...
Peng Yang, Jiajun He, Y. Ju, Qingyuan Zhang, Yipeng Wu, Zheng-Bao Xia, Liang Chen, S. Tang   +7 more
semanticscholar   +1 more source

Thermally Responsive Hydrogels for Passive Temperature Regulation under Direct Sunlight

Advanced Photonics Research, 2023
By spontaneously emitting midinfrared radiation to outer space through the atmospheric window and reflecting sunlight, daytime radiative coolers achieve notable passive cooling performance.
Dajie Xie, Wei Li, Corey A. Richards, Haibo Gao, Chen Chen, Nenad Miljkovic, Shanhui Fan, Jae Lee, Shailesh N. Joshi, Paul V. Braun   +9 more
doaj   +1 more source