skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High-performance subambient radiative cooling enabled by optically selective and thermally insulating polyethylene aerogel

Abstract

Recent progress in passive radiative cooling technologies has substantially improved cooling performance under direct sunlight. Yet, experimental demonstrations of daytime radiative cooling still severely underperform in comparison with the theoretical potential due to considerable solar absorption and poor thermal insulation at the emitter. In this work, we developed polyethylene aerogel (PEA)—a solar-reflecting (92.2% solar weighted reflectance at 6 mm thick), infrared-transparent (79.9% transmittance between 8 and 13 μm at 6 mm thick), and low-thermal-conductivity ( k PEA= 28 mW/mK) material that can be integrated with existing emitters to address these challenges. Using an experimental setup that includes the custom-fabricated PEA, we demonstrate a daytime ambient temperature cooling power of 96 W/m 2and passive cooling up to 13°C below ambient temperature around solar noon. This work could greatly improve the performance of existing passive radiative coolers for air conditioning and portable refrigeration applications.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Pontificia Universidad Católica de Chile, Santiago (Chile)
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1625999
Grant/Contract Number:  
SC0001299
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 5; Journal Issue: 10; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Science & Technology - Other Topics

Citation Formats

Leroy, A., Bhatia, B., Kelsall, C. C., Castillejo-Cuberos, A., Di Capua H., M., Zhao, L., Zhang, L., Guzman, A. M., and Wang, E. N. High-performance subambient radiative cooling enabled by optically selective and thermally insulating polyethylene aerogel. United States: N. p., 2019. Web. doi:10.1126/sciadv.aat9480.
Leroy, A., Bhatia, B., Kelsall, C. C., Castillejo-Cuberos, A., Di Capua H., M., Zhao, L., Zhang, L., Guzman, A. M., & Wang, E. N. High-performance subambient radiative cooling enabled by optically selective and thermally insulating polyethylene aerogel. United States. doi:10.1126/sciadv.aat9480.
Leroy, A., Bhatia, B., Kelsall, C. C., Castillejo-Cuberos, A., Di Capua H., M., Zhao, L., Zhang, L., Guzman, A. M., and Wang, E. N. Wed . "High-performance subambient radiative cooling enabled by optically selective and thermally insulating polyethylene aerogel". United States. doi:10.1126/sciadv.aat9480. https://www.osti.gov/servlets/purl/1625999.
@article{osti_1625999,
title = {High-performance subambient radiative cooling enabled by optically selective and thermally insulating polyethylene aerogel},
author = {Leroy, A. and Bhatia, B. and Kelsall, C. C. and Castillejo-Cuberos, A. and Di Capua H., M. and Zhao, L. and Zhang, L. and Guzman, A. M. and Wang, E. N.},
abstractNote = {Recent progress in passive radiative cooling technologies has substantially improved cooling performance under direct sunlight. Yet, experimental demonstrations of daytime radiative cooling still severely underperform in comparison with the theoretical potential due to considerable solar absorption and poor thermal insulation at the emitter. In this work, we developed polyethylene aerogel (PEA)—a solar-reflecting (92.2% solar weighted reflectance at 6 mm thick), infrared-transparent (79.9% transmittance between 8 and 13 μm at 6 mm thick), and low-thermal-conductivity (kPEA= 28 mW/mK) material that can be integrated with existing emitters to address these challenges. Using an experimental setup that includes the custom-fabricated PEA, we demonstrate a daytime ambient temperature cooling power of 96 W/m2and passive cooling up to 13°C below ambient temperature around solar noon. This work could greatly improve the performance of existing passive radiative coolers for air conditioning and portable refrigeration applications.},
doi = {10.1126/sciadv.aat9480},
journal = {Science Advances},
issn = {2375-2548},
number = 10,
volume = 5,
place = {United States},
year = {2019},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Solutions for a cultivated planet
journal, October 2011

  • Foley, Jonathan A.; Ramankutty, Navin; Brauman, Kate A.
  • Nature, Vol. 478, Issue 7369
  • DOI: 10.1038/nature10452

Radiative cooling of TiO2 white paint
journal, January 1978


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

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

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

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

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

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


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

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

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


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


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


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


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


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


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


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


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


Radiative cooling of solar cells
journal, January 2014


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


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


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


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


Thin cadmium sulphide film for radiative cooling application
journal, November 2006


Polyethylene characterization by FTIR
journal, January 2002


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


Modeling silica aerogel optical performance by determining its radiative properties
journal, February 2016

  • Zhao, Lin; Yang, Sungwoo; Bhatia, Bikram
  • AIP Advances, Vol. 6, Issue 2
  • DOI: 10.1063/1.4943215

Progress and Expectation of Atmospheric Water Harvesting
journal, August 2018


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


Convection coefficient equations for forced air flow over flat surfaces
journal, September 2006