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Title: Radiative sky cooling: Fundamental principles, materials, and applications

Abstract

Radiative sky cooling cools an object on the earth by emitting thermal infrared radiation to the cold universe through the atmospheric window (8–13 μm). It consumes no electricity and has great potential to be explored for cooling of buildings, vehicles, solar cells, and even thermal power plants. Radiative sky cooling has been explored in the past few decades but limited to nighttime use only. Very recently, owing to the progress in nanophotonics and metamaterials, daytime radiative sky cooling to achieve subambient temperatures under direct sunlight has been experimentally demonstrated. More excitingly, the manufacturing of the daytime radiative sky cooling material by the roll-to-roll process makes large-scale deployment of the technology possible. This work reviews the fundamental principles of radiative sky cooling as well as the recent advances, from both materials and systems point of view. Potential applications in different scenarios are reviewed with special attention to technology viability and benefits. As the energy situation and environmental issues become more and more severe in the 21st century, we conclude radiative sky cooling can be explored for energy saving in buildings and vehicles, mitigating the urban heat island effect, resolving water and environmental issues, achieving more efficient power generation, and even fightingmore » against the global warming problem.« less

Authors:
ORCiD logo [1];  [2]; ORCiD logo [2];  [3]; ORCiD logo [4];  [2]; ORCiD logo [2]
  1. Univ. of Colorado, Boulder, CO (United States); Southeast Univ., Nanjing (China). School of Energy and Environment
  2. Univ. of Colorado, Boulder, CO (United States)
  3. Ruiling Inst. of Advanced Energy and Environmental Solutions, Ningbo (China)
  4. Univ. of Wyoming, Laramie, WY (United States)
Publication Date:
Research Org.:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1613653
Alternate Identifier(s):
OSTI ID: 1507229
Grant/Contract Number:  
AR0000580
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Reviews
Additional Journal Information:
Journal Volume: 6; Journal Issue: 2; Journal ID: ISSN 1931-9401
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 14 SOLAR ENERGY; 54 ENVIRONMENTAL SCIENCES; Physics; Urban heat island; Atmospheric radiation; Passive radiator; Cooling technology; Infrared radiation; Solar energy; Energy efficiency; Metamaterials; Global warming; Building energy analysis

Citation Formats

Zhao, Dongliang, Aili, Ablimit, Zhai, Yao, Xu, Shaoyu, Tan, Gang, Yin, Xiaobo, and Yang, Ronggui. Radiative sky cooling: Fundamental principles, materials, and applications. United States: N. p., 2019. Web. doi:10.1063/1.5087281.
Zhao, Dongliang, Aili, Ablimit, Zhai, Yao, Xu, Shaoyu, Tan, Gang, Yin, Xiaobo, & Yang, Ronggui. Radiative sky cooling: Fundamental principles, materials, and applications. United States. doi:10.1063/1.5087281.
Zhao, Dongliang, Aili, Ablimit, Zhai, Yao, Xu, Shaoyu, Tan, Gang, Yin, Xiaobo, and Yang, Ronggui. Tue . "Radiative sky cooling: Fundamental principles, materials, and applications". United States. doi:10.1063/1.5087281. https://www.osti.gov/servlets/purl/1613653.
@article{osti_1613653,
title = {Radiative sky cooling: Fundamental principles, materials, and applications},
author = {Zhao, Dongliang and Aili, Ablimit and Zhai, Yao and Xu, Shaoyu and Tan, Gang and Yin, Xiaobo and Yang, Ronggui},
abstractNote = {Radiative sky cooling cools an object on the earth by emitting thermal infrared radiation to the cold universe through the atmospheric window (8–13 μm). It consumes no electricity and has great potential to be explored for cooling of buildings, vehicles, solar cells, and even thermal power plants. Radiative sky cooling has been explored in the past few decades but limited to nighttime use only. Very recently, owing to the progress in nanophotonics and metamaterials, daytime radiative sky cooling to achieve subambient temperatures under direct sunlight has been experimentally demonstrated. More excitingly, the manufacturing of the daytime radiative sky cooling material by the roll-to-roll process makes large-scale deployment of the technology possible. This work reviews the fundamental principles of radiative sky cooling as well as the recent advances, from both materials and systems point of view. Potential applications in different scenarios are reviewed with special attention to technology viability and benefits. As the energy situation and environmental issues become more and more severe in the 21st century, we conclude radiative sky cooling can be explored for energy saving in buildings and vehicles, mitigating the urban heat island effect, resolving water and environmental issues, achieving more efficient power generation, and even fighting against the global warming problem.},
doi = {10.1063/1.5087281},
journal = {Applied Physics Reviews},
number = 2,
volume = 6,
place = {United States},
year = {2019},
month = {4}
}

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Works referenced in this record:

Solar and terrestrial radiation dependent on the amount and type of cloud
journal, January 1980


Phase change materials for photovoltaic thermal management
journal, July 2015


On the estimation of atmospheric radiation from surface meteorological data
journal, April 1996


Enhanced solar still performance using a radiative cooling system
journal, November 2000


Application of passive radiative cooling for dew condensation
journal, October 2006


Recent Trends in Cloudiness over the United States: A Tale of Monitoring Inadequacies
journal, May 2006

  • Dai, Aiguo; Karl, Thomas R.; Sun, Bomin
  • Bulletin of the American Meteorological Society, Vol. 87, Issue 5
  • DOI: 10.1175/BAMS-87-5-597

A Metamaterial Emitter for Highly Efficient Radiative Cooling
journal, April 2015

  • Hossain, Md Muntasir; Jia, Baohua; Gu, Min
  • Advanced Optical Materials, Vol. 3, Issue 8
  • DOI: 10.1002/adom.201500119

Performance assessment of a photonic radiative cooling system for office buildings
journal, April 2018


Radiative cooling to deep sub-freezing temperatures through a 24-h day–night cycle
journal, December 2016

  • Chen, Zhen; Zhu, Linxiao; Raman, Aaswath
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms13729

Power-generation system vulnerability and adaptation to changes in climate and water resources
journal, January 2016

  • van Vliet, Michelle T. H.; Wiberg, David; Leduc, Sylvain
  • Nature Climate Change, Vol. 6, Issue 4
  • DOI: 10.1038/nclimate2903

Experimental evaluations of the building shell radiant exchange in clear sky conditions
journal, June 2012


Effective Radiative Cooling by Paint-Format Microsphere-Based Photonic Random Media
journal, January 2018


Photonic thermal management of coloured objects
journal, October 2018


A high efficient semi-open system for fresh water production from atmosphere
journal, November 2017


Harvesting Dew with Radiation Cooled Condensers to Supplement Drinking Water Supply in Semi-arid
journal, May 2011

  • Sharan, Girja
  • International Journal for Service Learning in Engineering, Humanitarian Engineering and Social Entrepreneurship, Vol. 6, Issue 1
  • DOI: 10.24908/ijsle.v6i1.3188

On the determination of atmospheric longwave irradiance under all-sky conditions
journal, March 2017


Mid-infrared emissivity of crystalline silicon solar cells
journal, January 2018


Thermal remote sensing of urban climates
journal, August 2003


A new long-wave formula for estimating downward clear-sky radiation at the surface
journal, July 1996

  • Prata, A. J.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 122, Issue 533
  • DOI: 10.1002/qj.49712253306

Measurement of Spectral Emissivity from 2 μ to 15 μ
journal, January 1959

  • Reid, Charles D.; McAlister, E. D.
  • Journal of the Optical Society of America, Vol. 49, Issue 1
  • DOI: 10.1364/JOSA.49.000078

A field investigation of passive radiative cooling under Hong Kong’s climate
journal, June 2017


Towards a surface radiation climatology: Retrieval of downward irradiances from satellites
journal, October 1989


On the Differences in Ablation Seasons of Arctic and Antarctic Sea Ice
journal, February 1982


Hierarchically porous polymer coatings for highly efficient passive daytime radiative cooling
journal, September 2018


About the equivalent radiative temperature for clear skies
journal, January 1984


A night cold storage system enhanced by radiative cooling—a modified Australian cooling system
journal, September 1999


Dew and rain water collection in the Dalmatian Coast, Croatia
journal, June 2009


Radiative Heat Pumping from the Earth Using Surface Phonon Resonant Nanoparticles
journal, February 2010

  • Gentle, A. R.; Smith, G. B.
  • Nano Letters, Vol. 10, Issue 2, p. 373-379
  • DOI: 10.1021/nl903271d

Desiccant enhanced nocturnal radiative cooling-solar collector system for air comfort application in hot arid areas
journal, March 2013


Passive cooling for air-conditioning energy savings with new radiative low-cost coatings
journal, June 2010


Field investigation of night radiation cooling under tropical climate
journal, June 2000


Comparison of various radiation-cooled dew condensers using computational fluid dynamics
journal, December 2009


Characterization of Silicon Nitride Films
journal, January 1971

  • Taft, E. A.
  • Journal of The Electrochemical Society, Vol. 118, Issue 8
  • DOI: 10.1149/1.2408318

Surface coatings for radiative cooling applications: Silicon dioxide and silicon nitride made by reactive rf-sputtering
journal, November 1985


Is enhanced radiative cooling of solar cell modules worth pursuing?
journal, June 2016


Subambient Cooling of Water: Toward Real-World Applications of Daytime Radiative Cooling
journal, January 2019


Performance limit of daytime radiative cooling in warm humid environment
journal, May 2018

  • Suichi, Takahiro; Ishikawa, Atsushi; Hayashi, Yasuhiko
  • AIP Advances, Vol. 8, Issue 5
  • DOI: 10.1063/1.5030156

Recent Progress in Daytime Radiative Cooling: Is It the Air Conditioner of the Future?
journal, November 2018


Surfaces for radiative cooling: Silicon monoxide films on aluminum
journal, January 1980

  • Granqvist, C. G.; Hjortsberg, A.
  • Applied Physics Letters, Vol. 36, Issue 2
  • DOI: 10.1063/1.91406

Light selective structures for large scale natural air conditioning
journal, January 1980


Pathways for mitigating thermal losses in solar photovoltaics
journal, September 2018


Performance of a heat pipe assisted night sky radiative cooler
journal, January 1990


The Temperature of the Cosmic Microwave Background
journal, November 2009


Effectiveness of a night radiative cooling system in different geographical latitudes
conference, January 2017

  • Tsoy, A. P.; Granovskiy, A. S.; Baranenko, A. V.
  • OIL AND GAS ENGINEERING (OGE-2017), AIP Conference Proceedings
  • DOI: 10.1063/1.4998880

Réfrigération radiative. Effet de serre inverse
journal, January 1979


Assessment of the radiative cooling potential of a collector using hourly weather data
journal, August 1994


The path towards sustainable energy
journal, December 2016

  • Chu, Steven; Cui, Yi; Liu, Nian
  • Nature Materials, Vol. 16, Issue 1
  • DOI: 10.1038/nmat4834

A review on the generation, determination and mitigation of Urban Heat Island
journal, January 2008

  • Rizwan, Ahmed Memon; Dennis, Leung Y. C.; Liu, Chunho
  • Journal of Environmental Sciences, Vol. 20, Issue 1, p. 120-128
  • DOI: 10.1016/S1001-0742(08)60019-4

A review of solar photovoltaic systems cooling technologies
journal, November 2018

  • Lupu, A. G.; Homutescu, V. M.; Balanescu, D. T.
  • IOP Conference Series: Materials Science and Engineering, Vol. 444
  • DOI: 10.1088/1757-899X/444/8/082016

Recent progress on desiccant materials for solid desiccant cooling systems
journal, September 2014


Long-term performance of high-albedo roof coatings
journal, January 1997


Sub-ambient non-evaporative fluid cooling with the sky
journal, September 2017


Simultaneously and Synergistically Harvest Energy from the Sun and Outer Space
journal, January 2019


Optics-Based Approach to Thermal Management of Photovoltaics: Selective-Spectral and Radiative Cooling
journal, March 2017


Heat reduction of concentrator photovoltaic module using high radiation coating
journal, January 2013


Radiative cooling of solar cells
journal, January 2014


Mathematical modeling of passive dry cooling for power plants in arid land
journal, January 1992


Daytime Radiative Cooling Using Near-Black Infrared Emitters
journal, February 2017


Comfortable, high-efficiency heat pump with desiccant-coated, water-sorbing heat exchangers
journal, January 2017

  • Tu, Y. D.; Wang, R. Z.; Ge, T. S.
  • Scientific Reports, Vol. 7, Issue 1
  • DOI: 10.1038/srep40437

Radiative cooling with selectively infrared-emitting gases
journal, January 1984

  • Lushiku, Elias M.; Granqvist, Claes-Goran
  • Applied Optics, Vol. 23, Issue 11
  • DOI: 10.1364/AO.23.001835

Amplified radiative cooling via optimised combinations of aperture geometry and spectral emittance profiles of surfaces and the atmosphere
journal, September 2009


Directional spectral emissivities of clear skies
journal, October 2003


Optical and thermal filtering nanoporous materials for sub-ambient radiative cooling
journal, June 2018


A review of clear sky radiative cooling developments and applications in renewable power systems and passive building cooling
journal, May 2018


Radiative cooling with selectively infrared‐emitting ammonia gas
journal, August 1982

  • Lushiku, E. M.; Hjortsberg, A.; Granqvist, C. G.
  • Journal of Applied Physics, Vol. 53, Issue 8
  • DOI: 10.1063/1.331487

Nanoporous polyethylene microfibres for large-scale radiative cooling fabric
journal, February 2018


Radiation cooling of buildings at night
journal, October 1979


Natural convection in an internally finned phase change material heat sink for the thermal management of photovoltaics
journal, July 2011


Passive radiative cooling below ambient air temperature under direct sunlight
journal, November 2014

  • Raman, Aaswath P.; Anoma, Marc Abou; Zhu, Linxiao
  • Nature, Vol. 515, Issue 7528, p. 540-544
  • DOI: 10.1038/nature13883

Passive directional sub-ambient daytime radiative cooling
journal, November 2018


Review of research on air-conditioning systems and indoor air quality control for human health
journal, January 2009


Characterization of silicon oxynitride multilayered systems for passive radiative cooling application
journal, August 1995


Summary of results from the spectral and angular sky radiation measurement program
journal, January 1984


Thermal management systems for Photovoltaics (PV) installations: A critical review
journal, November 2013


Effective, angle-independent radiative cooler based on one-dimensional photonic crystal
journal, January 2018

  • Yuan, Huaxin; Yang, Chenying; Zheng, Xiaowen
  • Optics Express, Vol. 26, Issue 21
  • DOI: 10.1364/OE.26.027885

Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling
journal, February 2017


Estimating downward long-wave radiation on the Andean Altiplano
journal, August 2007


Passive cooling techniques through reflective and radiative roofs in tropical houses in Southeast Asia: A literature review
journal, September 2014

  • Al-Obaidi, Karam M.; Ismail, Mazran; Abdul Rahman, Abdul Malek
  • Frontiers of Architectural Research, Vol. 3, Issue 3
  • DOI: 10.1016/j.foar.2014.06.002

A Radiative Cooling System Using Water as a Heat Exchange Medium
journal, June 1992


A comparative study of two large radiative dew water condensers
journal, January 2006


Estimation of dew yield from radiative condensers by means of an energy balance model
journal, August 2012


Radiative cooling with selectively emitting ethylene gas
journal, September 1981

  • Hjortsberg, A.; Granqvist, C. G.
  • Applied Physics Letters, Vol. 39, Issue 6
  • DOI: 10.1063/1.92783

An R&D Strategy to Decouple Energy from Water
journal, November 2017


Global warming and 21st century drying
journal, March 2014


A Comprehensive Photonic Approach for Solar Cell Cooling
journal, March 2017


Atmospheric Transmittance And Radiance: The LOWTRAN 5 Code
conference, July 1981

  • Kneizys, F. X.; Shettle, E. P.; Gallery, W. O.
  • 1981 Technical Symposium East, SPIE Proceedings
  • DOI: 10.1117/12.931910

Development of passive dry cooling system for power plants in arid land
journal, December 1993


Thermal radiation from the atmosphere
journal, October 1969

  • Idso, Sherwood B.; Jackson, Ray D.
  • Journal of Geophysical Research, Vol. 74, Issue 23
  • DOI: 10.1029/JC074i023p05397

Radiative cooling: A review of fundamentals, materials, applications, and prospects
journal, February 2019


Condensation of water by radiative cooling
journal, August 1994


Radiative cooling to low temperatures: General considerations and application to selectively emitting SiO films
journal, June 1981

  • Granqvist, C. G.; Hjortsberg, A.
  • Journal of Applied Physics, Vol. 52, Issue 6, p. 4205-4220
  • DOI: 10.1063/1.329270

Heat Transfer During Wind Flow over Rectangular Bodies in the Natural Environment
journal, May 1981

  • Test, F. L.; Lessmann, R. C.; Johary, A.
  • Journal of Heat Transfer, Vol. 103, Issue 2
  • DOI: 10.1115/1.3244451

Physics of Climate
journal, August 1992

  • Peixoto, José P.; Oort, Abraham H.; Covey, Curt
  • Physics Today, Vol. 45, Issue 8
  • DOI: 10.1063/1.2809772

A review: dew water collection from radiative passive collectors to recent developments of active collectors
journal, December 2015

  • Khalil, B.; Adamowski, J.; Shabbir, A.
  • Sustainable Water Resources Management, Vol. 2, Issue 1
  • DOI: 10.1007/s40899-015-0038-z

Ultra-broadband large-scale infrared perfect absorber with optical transparency
journal, October 2017


Fabrication of radiative cooling materials based on Si2N2O particles by the nitridation of mixtures of silicon and silicon dioxide powders
journal, January 2013

  • Miyazaki, Hidetoshi; Yoshida, Shigeki; Sato, Yosuke
  • Journal of the Ceramic Society of Japan, Vol. 121, Issue 1410
  • DOI: 10.2109/jcersj2.121.242

Cooling of photovoltaic cells under concentrated illumination: a critical review
journal, April 2005


Experimental investigation on night sky radiant cooling performance of duct-type heat exchanger
journal, March 2017


Fighting global warming by climate engineering: Is the Earth radiation management and the solar radiation management any option for fighting climate change?
journal, March 2014


Radiative cooling efficiency of white pigmented paints
journal, June 1993


Optimized cool roofs: Integrating albedo and thermal emittance with R-value
journal, December 2011

  • Gentle, A. R.; Aguilar, J. L. C.; Smith, G. B.
  • Solar Energy Materials and Solar Cells, Vol. 95, Issue 12, p. 3207-3215
  • DOI: 10.1016/j.solmat.2011.07.018

Radiative Cooling: Lattice Quantization and Surface Emissivity in Thin Coatings
journal, May 2009

  • Suryawanshi, Chetan N.; Lin, Chhiu-Tsu
  • ACS Applied Materials & Interfaces, Vol. 1, Issue 6, p. 1334-1338
  • DOI: 10.1021/am900200r

Keeping cool: Enhanced optical reflection and radiative heat dissipation in Saharan silver ants
journal, June 2015


A solar reflecting material for radiative cooling applications: ZnS pigmented polyethylene
journal, November 1992

  • Nilsson, Torbjörn M. J.; Niklasson, Gunnar A.; Granqvist, Claes G.
  • Solar Energy Materials and Solar Cells, Vol. 28, Issue 2
  • DOI: 10.1016/0927-0248(92)90010-M

Infrared optical properties of silicon oxynitride films: Experimental data and theoretical interpretation
journal, September 1986

  • Eriksson, T. S.; Granqvist, C. G.
  • Journal of Applied Physics, Vol. 60, Issue 6
  • DOI: 10.1063/1.337212

Rooftop dew, fog and rain collection in southwest Morocco and predictive dew modeling using neural networks
journal, July 2012


Sky longwave radiation on tropical Andean glaciers: parameterization and sensitivity to atmospheric variables
journal, January 2010


Radiation cooling of structures with infrared transparent wind screens
journal, July 1975


Modelling and experimental analysis of three radioconvective panels for night cooling
journal, November 2015


From spectral clear sky emissivity to total clear sky emissivity
journal, January 1989


The effects of multiple covers with condensation and optical degradation of a polyethylene windscreen on the performance of a sky cooling system
journal, October 2018


A dual-layer structure with record-high solar reflectance for daytime radiative cooling
journal, July 2018


Feasibility study on novel hybrid ground coupled heat pump system with nocturnal cooling radiator for cooling load dominated buildings
journal, November 2011


Roof-integrated dew water harvesting in Combarbalá, Chile
journal, May 2018

  • Carvajal, Danilo; Minonzio, Jean-Gabriel; Casanga, Elvira
  • Journal of Water Supply: Research and Technology - Aqua, Vol. 67, Issue 4
  • DOI: 10.2166/aqua.2018.174

Blue Sky Cooling for Parabolic Trough Plants
journal, January 2014


Ultrabroadband Photonic Structures To Achieve High-Performance Daytime Radiative Cooling
journal, March 2013

  • Rephaeli, Eden; Raman, Aaswath; Fan, Shanhui
  • Nano Letters, Vol. 13, Issue 4, p. 1457-1461
  • DOI: 10.1021/nl4004283

Emissivity of clear skies
journal, January 1984


GPS Meteorology: Direct Estimation of the Absolute Value of Precipitable Water
journal, June 1996


Solar heating of GaAs nanowire solar cells
journal, January 2015


Optical antenna thermal emitters
journal, October 2009

  • Schuller, Jon A.; Taubner, Thomas; Brongersma, Mark L.
  • Nature Photonics, Vol. 3, Issue 11
  • DOI: 10.1038/nphoton.2009.188

Dew water collector for potable water in Ajaccio (Corsica Island, France)
journal, September 2002


Night sky cooling for concentrating solar power plants
journal, October 2016


Radiative cooling during the day: simulations and experiments on pigmented polyethylene cover foils
journal, April 1995

  • Nilsson, Torbjörn M. J.; Niklasson, Gunnar A.
  • Solar Energy Materials and Solar Cells, Vol. 37, Issue 1, p. 93-118
  • DOI: 10.1016/0927-0248(94)00200-2

Improving photovoltaic performance through radiative cooling in both terrestrial and extraterrestrial environments
journal, January 2015


Nocturnal and diurnal performances of selective radiators
journal, October 1977


Performance evaluation of a PV (photovoltaic) module by back surface water cooling for hot climatic conditions
journal, September 2013


What is an air mass 1.5 spectrum? (solar cell performance calculations)
conference, January 1990


Radiative Cooling: Principles, Progress, and Potentials
journal, February 2016


Stainless steel/tin/glass coating as spectrally selective material for passive radiative cooling applications
journal, February 2009


Radiative cooling as low-grade energy source: A literature review
journal, September 2017


Energy efficient design of building: A review
journal, August 2012

  • Pacheco, R.; Ordóñez, J.; Martínez, G.
  • Renewable and Sustainable Energy Reviews, Vol. 16, Issue 6
  • DOI: 10.1016/j.rser.2012.03.045

Metamaterials for radiative sky cooling
journal, January 2018

  • Fan, Shanhui; Raman, Aaswath
  • National Science Review, Vol. 5, Issue 2
  • DOI: 10.1093/nsr/nwy012

Observed relationship between surface specific humidity, integrated water vapor, and longwave downward radiation at different altitudes
journal, January 2007

  • Ruckstuhl, Christian; Philipona, Rolf; Morland, June
  • Journal of Geophysical Research, Vol. 112, Issue D3
  • DOI: 10.1029/2006JD007850

A two-stage system of nocturnal radiative and indirect evaporative cooling for conditions in Tehran
journal, November 2010


Full-scale measurements of wind-induced convective heat transfer from a roof-mounted flat plate solar collector
journal, February 1998


Double-layer nanoparticle-based coatings for efficient terrestrial radiative cooling
journal, August 2017


Radiative cooling of buildings with flat-plate solar collectors
journal, May 2000


Cloud effect in the estimation of instantaneous downward longwave radiation
journal, March 1993

  • Sugita, Michiaki; Brutsaert, Wilfried
  • Water Resources Research, Vol. 29, Issue 3
  • DOI: 10.1029/92WR02352

A review of solar photovoltaic systems cooling technologies
journal, November 2017


Passive Cooling Systems in Iranian Architecture
journal, February 1978


New formulae for the equivalent night sky emissivity
journal, January 1982


Passive cooling doesn’t cost the planet
journal, April 2017


Heat pipe-based cooling systems for photovoltaic cells under concentrated solar radiation
journal, January 1996


A study of a polymer-based radiative cooling system
journal, December 2002


Integration of thermal insulation coating and moving-air-cavity in a cool roof system for attic temperature reduction
journal, November 2013


Personal Thermal Management by Metallic Nanowire-Coated Textile
journal, December 2014

  • Hsu, Po-Chun; Liu, Xiaoge; Liu, Chong
  • Nano Letters, Vol. 15, Issue 1
  • DOI: 10.1021/nl5036572

A model of thermal radiation from partly cloudy and overcast skies
journal, August 1982


Nanophotonic control of thermal radiation for energy applications [Invited]
journal, January 2018


Clear sky emissivity as a function of the zenith direction
journal, February 1998


Review of Nocturnal Cooling Systems
journal, January 2010


Colored, Daytime Radiative Coolers with Thin-Film Resonators for Aesthetic Purposes
journal, August 2018

  • Lee, Gil Ju; Kim, Yeong Jae; Kim, Hyun Myung
  • Advanced Optical Materials, Vol. 6, Issue 22
  • DOI: 10.1002/adom.201800707

System analysis of membrane facilitated water generation from air humidity
journal, April 2014


Estimating downward clear sky long-wave irradiance at the surface from screen temperature and precipitable water
journal, July 1998

  • Dilley, A. C.; O'brien, D. M.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 124, Issue 549
  • DOI: 10.1002/qj.49712454903

Radiative cooling with MgO and/or LiF layers
journal, January 1984


The thermal radiance of clear skies
journal, January 1982


A Subambient Open Roof Surface under the Mid-Summer Sun
journal, May 2015


Performance of different passive techniques for cooling of buildings in arid regions
journal, January 2003


Modeling and testing of a dew collection system
journal, August 2005


Methods for rejecting daytime waste heat to outer space
journal, May 2017


Initial experiments on dew collection in Sweden and Tanzania
journal, March 1996


Radiative cooling of TiO2 white paint
journal, January 1978


Towards cooling systems integration in buildings: Experimental analysis of a heat dissipation panel
journal, May 2017

  • Zuazua-Ros, Amaia; Martín Gómez, César; Ramos, Juan Carlos
  • Renewable and Sustainable Energy Reviews, Vol. 72
  • DOI: 10.1016/j.rser.2017.01.065

Cooling potential and applications prospects of passive radiative cooling in buildings: The current state-of-the-art
journal, November 2016


Atmospheric radiation near the surface of the ground: A summary for engineers
journal, July 1961


Temperature reduction in attic and ceiling via insulation of several passive roof designs
journal, June 2011


Effects of passive cooling on performance of silicon photovoltaic cells
journal, September 2011

  • Cuce, Erdem; Bali, Tulin; Sekucoglu, Suphi Anil
  • International Journal of Low-Carbon Technologies, Vol. 6, Issue 4
  • DOI: 10.1093/ijlct/ctr018

On a derivable formula for long-wave radiation from clear skies
journal, October 1975


Aerosol Effects on Cloud Emissivity and Surface Longwave Heating in the Arctic
journal, February 2002


A review of benefits and limitations of static and switchable cool roof systems
journal, September 2017


Photovoltaic materials: Present efficiencies and future challenges
journal, April 2016


Irrigation of Plants with Atmospheric Water within the Desert
journal, September 1965


Sky radiance at wavelengths between 7 and 14 μm: measurement, calculation, and comparison with lowtran-4 predictions
journal, January 1980

  • Ben-Shalom, A.; Barzilai, B.; Cabib, D.
  • Applied Optics, Vol. 19, Issue 6
  • DOI: 10.1364/AO.19.000838

Infrared optical properties of electron-beam evaporated silicon oxynitride films
journal, January 1983


Passive temperature control based on a phase change metasurface
journal, May 2018


Review of alternative cooling technologies
journal, March 2014


Emissivity of solar cell cover glass calculated from infrared reflectance measurements
journal, February 2019

  • Subedi, Indra; Silverman, Timothy J.; Deceglie, Michael G.
  • Solar Energy Materials and Solar Cells, Vol. 190
  • DOI: 10.1016/j.solmat.2018.09.027

Notes on radiation in the atmosphere. I
journal, October 1932

  • Brunt, D.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 58, Issue 247
  • DOI: 10.1002/qj.49705824704

A review on buildings energy consumption information
journal, January 2008


Utilization of Seasonal Sky Radiation Energy for Space Cooling
journal, November 1984

  • Saitoh, T.; Ono, T.
  • Journal of Solar Energy Engineering, Vol. 106, Issue 4
  • DOI: 10.1115/1.3267618

Cooling of water flowing through a night sky radiator
journal, October 1995


Estimation of daytime downward longwave radiation at the surface from satellite and grid point data
journal, January 1986

  • Schmetz, P.; Schmetz, J.; Raschke, E.
  • Theoretical and Applied Climatology, Vol. 37, Issue 3
  • DOI: 10.1007/BF00867847

The importance of surface finish to energy performance
journal, January 2017

  • Smith, Geoff B.; Gentle, Angus R.; Arnold, Matthew D.
  • Renewable Energy and Environmental Sustainability, Vol. 2
  • DOI: 10.1051/rees/2017047

Performance improvement of dry cooled advanced concentrating solar power plants using daytime radiative cooling
journal, December 2015


Fabrication of radiative cooling devices using Si<sub>2</sub>N<sub>2</sub>O nano-particles
journal, January 2016

  • Miyazaki, Hidetoshi; Okada, Kazuya; Jinno, Kenta
  • Journal of the Ceramic Society of Japan, Vol. 124, Issue 11
  • DOI: 10.2109/jcersj2.16164

Radiative human body cooling by nanoporous polyethylene textile
journal, September 2016


TiO 2 Nanocrystalline Pigmented Polyethylene Foils for Radiative Cooling Applications:  Synthesis and Characterization
journal, October 2001

  • Mastai, Y.; Diamant, Y.; Aruna, S. T.
  • Langmuir, Vol. 17, Issue 22
  • DOI: 10.1021/la010370g

Thin semiconductor films for radiative cooling applications
journal, November 2003


Performance evaluation of green roof and shading for thermal protection of buildings
journal, November 2005


The cooling performance of a radiator based roof component
journal, August 2006


Surface temperature lapse rates over complex terrain: Lessons from the Cascade Mountains
journal, January 2010

  • Minder, Justin R.; Mote, Philip W.; Lundquist, Jessica D.
  • Journal of Geophysical Research, Vol. 115, Issue D14
  • DOI: 10.1029/2009JD013493

Color-preserving daytime radiative cooling
journal, November 2013

  • Zhu, Linxiao; Raman, Aaswath; Fan, Shanhui
  • Applied Physics Letters, Vol. 103, Issue 22
  • DOI: 10.1063/1.4835995

The radiative cooling of selective surfaces
journal, May 1975


The cooling potential of a metallic nocturnal radiator
journal, November 1998


Effects of white roofs on urban temperature in a global climate model: EFFECTS OF WHITE ROOFS ON TEMPERATURE
journal, February 2010

  • Oleson, K. W.; Bonan, G. B.; Feddema, J.
  • Geophysical Research Letters, Vol. 37, Issue 3
  • DOI: 10.1029/2009GL042194

Radiative sky cooling: fundamental physics, materials, structures, and applications
journal, July 2017


A review on the prediction of building energy consumption
journal, August 2012

  • Zhao, Hai-xiang; Magoulès, Frédéric
  • Renewable and Sustainable Energy Reviews, Vol. 16, Issue 6
  • DOI: 10.1016/j.rser.2012.02.049

Pore structure of new composite adsorbent SiO2�xH2O�yCaCl2 with high uptake of water from air
journal, January 2003


Increasing effectiveness of evaporative cooling by pre-cooling using nocturnally stored water
journal, May 2012


In-situ measured spectral directional emissivity of snow and ice in the 8–14 μm atmospheric window
journal, February 2006

  • Hori, Masahiro; Aoki, Teruo; Tanikawa, Tomonori
  • Remote Sensing of Environment, Vol. 100, Issue 4
  • DOI: 10.1016/j.rse.2005.11.001

Earth's Annual Global Mean Energy Budget
journal, February 1997


A robust convection cover material for selective radiative cooling applications
journal, October 2011


On the sky temperature models and their influence on buildings energy performance: A critical review
journal, January 2019


Studies of Radiative Cooling Systems for Storing Thermal Energy
journal, August 1989

  • Ito, S.; Miura, N.
  • Journal of Solar Energy Engineering, Vol. 111, Issue 3
  • DOI: 10.1115/1.3268315

Passive radiative cooling design with broadband optical thin-film filters
journal, September 2017

  • Kecebas, Muhammed Ali; Menguc, M. Pinar; Kosar, Ali
  • Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 198
  • DOI: 10.1016/j.jqsrt.2017.03.046

Infrared-transparent convection shields for radiative cooling: Initial results on corrugated polyethylene foils
journal, November 1985


Experimental and theoretical investigation of a nocturnal radiator for space cooling
journal, June 2008


Effective Atmospheric Emissivity under Clear Skies
journal, March 1972


Longwave sky radiation parametrizations
journal, August 1994


Materials for Radiative Cooling: A Review
journal, January 2017


Nanoparticle embedded double-layer coating for daytime radiative cooling
journal, January 2017


A study of dew water yields on Galvanized iron roofs in Kothara (North-West India)
journal, April 2007


Observed changes in top-of-the-atmosphere radiation and upper-ocean heating consistent within uncertainty
journal, January 2012

  • Loeb, Norman G.; Lyman, John M.; Johnson, Gregory C.
  • Nature Geoscience, Vol. 5, Issue 2
  • DOI: 10.1038/ngeo1375

Solar cell efficiency tables (version 50)
journal, June 2017

  • Green, Martin A.; Hishikawa, Yoshihiro; Warta, Wilhelm
  • Progress in Photovoltaics: Research and Applications, Vol. 25, Issue 7
  • DOI: 10.1002/pip.2909

Using radiative cooling to condense atmospheric vapor: a study to improve water yield
journal, May 2003


Water vapor absorption coefficients in the 8–13-μm spectral region: a critical review
journal, January 1990


Estimates of clear night sky emissivity in the Negev Highlands, Israel
journal, July 2004


Laboratory Determinations of Water Surface Emissivity
journal, December 1972


Selective covers for natural cooling devices
journal, September 1978

  • Addeo, A.; Monza, E.; Peraldo, M.
  • Il Nuovo Cimento C, Vol. 1, Issue 5
  • DOI: 10.1007/BF02507668

A novel self-powering ultrathin TEG device based on micro/nano emitter for radiative cooling
journal, January 2019


Cool surfaces and shade trees to reduce energy use and improve air quality in urban areas
journal, January 2001


A Theoretical and Experimental Investigation of a Radiative Cooling System
journal, December 1998


Characteristics of infrared sky radiation in the United States
journal, January 1984


Thermal performance of radiative cooling panels
journal, June 1983

  • Berdahl, P.; Martin, M.; Sakkal, F.
  • International Journal of Heat and Mass Transfer, Vol. 26, Issue 6, p. 871-880
  • DOI: 10.1016/S0017-9310(83)80111-2

On the development, optical properties and thermal performance of cool colored coatings for the urban environment
journal, April 2007


Spectrally Selective Nanocomposite Textile for Outdoor Personal Cooling
journal, July 2018


Thermodynamic limits of energy harvesting from outgoing thermal radiation
journal, April 2018

  • Buddhiraju, Siddharth; Santhanam, Parthiban; Fan, Shanhui
  • Proceedings of the National Academy of Sciences, Vol. 115, Issue 16
  • DOI: 10.1073/pnas.1717595115

Radiative cooling of solar absorbers using a visibly transparent photonic crystal thermal blackbody
journal, September 2015

  • Zhu, Linxiao; Raman, Aaswath P.; Fan, Shanhui
  • Proceedings of the National Academy of Sciences, Vol. 112, Issue 40
  • DOI: 10.1073/pnas.1509453112

Day-night differences in the effective emissivity from clear skies
journal, October 1988

  • Alados-Arboledas, L.; Jimenez, J. I.
  • Boundary-Layer Meteorology, Vol. 45, Issue 1-2
  • DOI: 10.1007/BF00120817

Early experiments on water desalination by freezing
journal, January 1968


Radiative cooling computed for model atmospheres
journal, January 1982


Photovoltaic–thermal collectors for night radiative cooling of buildings
journal, July 2011


Metal-Loaded Dielectric Resonator Metasurfaces for Radiative Cooling
journal, August 2017

  • Zou, Chengjun; Ren, Guanghui; Hossain, Md Muntasir
  • Advanced Optical Materials, Vol. 5, Issue 20
  • DOI: 10.1002/adom.201700460

Performance analysis on a building-integrated solar heating and cooling panel
journal, February 2015


A sphere-scanning radiometer for rapid directional measurements of sky and ground radiance
journal, February 1986


Achieving cryogenic temperatures in deep space using a coating
journal, January 2016


Comparison of surface radiative flux parameterizations
journal, June 2001


Materials for radiative cooling to low temperature
journal, November 1984


Energy saving and economic analysis of a new hybrid radiative cooling system for single-family houses in the USA
journal, August 2018


A Universal Route to Realize Radiative Cooling and Light Management in Photovoltaic Modules
journal, September 2017


Clear sky radiation as a function of altitude
journal, April 1992


Progress and Expectation of Atmospheric Water Harvesting
journal, August 2018


Distribution of Infrared Radiance over a Clear Sky
journal, January 1960

  • Bennett, H. E.; Bennett, Jean M.; Nagel, Max R.
  • Journal of the Optical Society of America, Vol. 50, Issue 2
  • DOI: 10.1364/JOSA.50.000100

Self-adaptive radiative cooling based on phase change materials
journal, January 2018


Spectral Radiance of Sky and Terrain at Wavelengths between 1 and 20 Microns II Sky Measurements*
journal, January 1960

  • Bell, Ely E.; Eisner, Leonard; Young, James
  • Journal of the Optical Society of America, Vol. 50, Issue 12
  • DOI: 10.1364/JOSA.50.001313

Potential energy savings by radiative cooling system for a building in tropical climate
journal, April 2014


Resonant-cavity enhanced thermal emission
journal, August 2005

  • Celanovic, Ivan; Perreault, David; Kassakian, John
  • Physical Review B, Vol. 72, Issue 7, Article No. 075127
  • DOI: 10.1103/PhysRevB.72.075127

Spectral Radiance of Sky and Terrain at Wavelengths between 1 and 20 Microns I Instrumentation*
journal, January 1960

  • Oetjen, Robert A.; Bell, Ely E.; Young, James
  • Journal of the Optical Society of America, Vol. 50, Issue 12
  • DOI: 10.1364/JOSA.50.001308

A numerical study of daytime passive radiative coolers for space cooling in buildings
journal, September 2018


Long-wave radiation from clear skies
journal, July 1963

  • Swinbank, W. C.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 89, Issue 381
  • DOI: 10.1002/qj.49708938105

Development of a single-phase thermosiphon for cold collection and storage of radiative cooling
journal, November 2017


Simple Approximation for Infrared Emissivity of Water Clouds
journal, January 1982


Life Cycle Analysis of Cool Roof in Tropical Areas
journal, January 2016


Dew as a sustainable non-conventional water resource: a critical review
journal, December 2015

  • Tomaszkiewicz, Marlene; Abou Najm, Majdi; Beysens, Daniel
  • Environmental Reviews, Vol. 23, Issue 4
  • DOI: 10.1139/er-2015-0035

Ultra-broadband asymmetric transmission metallic gratings for subtropical passive daytime radiative cooling
journal, November 2018


Passive dew collection in a grassland area, The Netherlands
journal, March 2008


Radio-sounding data for the determination of the infra-red sky radiation
journal, January 1988


Polymeric mesh for durable infra-red transparent convection shields: Applications in cool roofs and sky cooling
journal, August 2013


Emissivity of terrestrial materials in the 8–14 μm atmospheric window
journal, November 1992


Solar heating and radiative cooling using a solar collector-sky radiator with a spectrally selective surface
journal, January 1987


Effect of atmospheric humidity on radiation cooling
journal, January 1981