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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 2 — Jan. 27, 2014
  • pp: 1940–1951

Radiative contribution to thermal conductance in animal furs and other woolly insulators

Priscilla Simonis, Mourad Rattal, El Mostafa Oualim, Azeddine Mouhse, and Jean-Pol Vigneron  »View Author Affiliations

Optics Express, Vol. 22, Issue 2, pp. 1940-1951 (2014)

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This paper deals with radiation’s contribution to thermal insulation. The mechanism by which a stack of absorbers limits radiative heat transfer is examined in detail both for black-body shields and grey-body shields. It shows that radiation energy transfer rates should be much faster than conduction rates. It demonstrates that, for opaque screens, increased reflectivity will dramatically reduce the rate of heat transfer, improving thermal insulation. This simple model is thought to contribute to the understanding of how animal furs, human clothes, rockwool insulators, thermo-protective containers, and many other passive energy-saving devices operate.

© 2014 Optical Society of America

OCIS Codes
(160.2290) Materials : Fiber materials
(170.1420) Medical optics and biotechnology : Biology
(290.4210) Scattering : Multiple scattering
(350.5610) Other areas of optics : Radiation

ToC Category:

Original Manuscript: October 16, 2013
Revised Manuscript: December 8, 2013
Manuscript Accepted: December 10, 2013
Published: January 23, 2014

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Vol. 9, Iss. 3 Virtual Journal for Biomedical Optics

Priscilla Simonis, Mourad Rattal, El Mostafa Oualim, Azeddine Mouhse, and Jean-Pol Vigneron, "Radiative contribution to thermal conductance in animal furs and other woolly insulators," Opt. Express 22, 1940-1951 (2014)

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