Radiative cooling

This article is about the natural process. For the renewable cooling method, see passive daytime radiative cooling.

In the study of heat transfer, radiative cooling[1][2] is the process by which a body loses heat by thermal radiation. As Planck's law describes, every physical body spontaneously and continuously emits electromagnetic radiation.

Radiative cooling has been applied in various contexts throughout human history, including ice making in India and Iran,[3] heat shields for spacecraft,[4] and in architecture.[5] In 2014, a scientific breakthrough in the use of photonic metamaterials made daytime radiative cooling possible.[6][7] It has since been proposed as a strategy to mitigate local and global warming caused by greenhouse gas emissions known as passive daytime radiative cooling.[8]

  1. ^ Fan, Shanhui; Li, Wei (March 2022). "Photonics and thermodynamics concepts in radiative cooling". Nature Photonics. 16 (3): 182–190. Bibcode:2022NaPho..16..182F. doi:10.1038/s41566-021-00921-9. S2CID 246668570.
  2. ^ Li, Wei; Fan, Shanhui (1 November 2019). "Radiative Cooling: Harvesting the Coldness of the Universe". Optics and Photonics News. 30 (11): 32. Bibcode:2019OptPN..30...32L. doi:10.1364/OPN.30.11.000032. S2CID 209957921.
  3. ^ Cite error: The named reference :2 was invoked but never defined (see the help page).
  4. ^ Shao, Gaofeng; et al. (2019). "Improved oxidation resistance of high emissivity coatings on fibrous ceramic for reusable space systems". Corrosion Science. 146: 233–246. arXiv:1902.03943. Bibcode:2019Corro.146..233S. doi:10.1016/j.corsci.2018.11.006. S2CID 118927116.
  5. ^ Cite error: The named reference :4 was invoked but never defined (see the help page).
  6. ^ Heo, Se-Yeon; Ju Lee, Gil; Song, Young Min (June 2022). "Heat-shedding with photonic structures: radiative cooling and its potential". Journal of Materials Chemistry C. 10 (27): 9915–9937. doi:10.1039/D2TC00318J. S2CID 249695930 – via Royal Society of Chemistry.
  7. ^ Raman, Aaswath P.; Anoma, Marc Abou; Zhu, Linxiao; Raphaeli, Eden; Fan, Shanhui (2014). "Passive Radiative Cooling Below Ambient air Temperature under Direct Sunlight". Nature. 515 (7528): 540–544. Bibcode:2014Natur.515..540R. doi:10.1038/nature13883. PMID 25428501. S2CID 4382732 – via nature.com.
  8. ^ Munday, Jeremy (2019). "Tackling Climate Change through Radiative Cooling". Joule. 3 (9): 2057–2060. Bibcode:2019Joule...3.2057M. doi:10.1016/j.joule.2019.07.010. S2CID 201590290.