Methods for rejecting daytime waste heat to outer space

Stark, Addison K.

doi:10.1093/nsr/nwx052

Title: Methods for rejecting daytime waste heat to outer space

Journal Article · 02 May 2017 · National Science Review

DOI: https://doi.org/10.1093/nsr/nwx052 · OSTI ID:1464730

Stark, Addison K. ^[1]

USDOE Advanced Research Projects Agency - Energy (ARPA-E) (United States)

We report that outer space constitutes an extremely low temperature (T ~ 4 K) thermodynamic reservoir of boundless thermal capacity, with the potential to serve as a cold reservoir for cooling objects to sub-ambient temperatures in the daytime. For example, assuming a perfect emitter at 300 K, the theoretical black-body heat transfer rate to space can be calculated to be 450 Wm-2 [1]. However, for terrestrial objects, the atmosphere serves as a highly effective infrared (IR) insulator, as well as a heat source via radiation, convection and conduction to the object when cooled to sub-ambient temperatures.

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Research Organization:: USDOE Advanced Research Projects Agency - Energy (ARPA-E), Washington, DC (United States)

Sponsoring Organization:: USDOE

OSTI ID:: 1464730

Journal Information:: National Science Review, Vol. 4, Issue 6; ISSN 2095-5138

Publisher:: China Science PublishingCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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References (4)

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Cited By (1)

Radiative sky cooling: Fundamental principles, materials, and applications Zhao, Dongliang; Aili, Ablimit; Zhai, Yao Applied Physics Reviews, Vol. 6, Issue 2 https://doi.org/10.1063/1.5087281	journal	June 2019