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Thermal Conductivity of Granular SiO2 Aerogel

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Aerogels

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 6))

Abstract

Translucent granular aerogel is more easily produced than aerogel tiles. An evacuated layer of aerogel pellets between glass panes is considered as excellent superinsulating system for passive solar energy usage. For a 20 mm layer the thermal loss coefficient at ambient temperatures is in the order of k ≈ 0.5 W/(m2 ·K) and thus extremely low compared to conventional translucent thermal insulations. Aerogel could be employed in modified house or Trombe wall systems, for direct gain applications in greenhouses, indoor swimming-pools etc., or for long-term storage of solar energy in saltless solar ponds.

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References

  1. S.S. Kistler, Nature 127, 741 (1931)

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  6. P. Scheuerpflug, R. Caps, D. Büttner and J. Fricke, “Apparent Thermal Conductivity of Evacuated SiO2-Aerogel Tiles Under Variation of Radiative Boundary Conditions”, Int. J. Heat and Mass Transfer (to be published 1985 )

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Author information

Authors and Affiliations

  1. Physikalisches Institut der Universität, Am Hubland, D-8700, Würzburg, Germany

    D. Büttner, E. Hümmer & J. Fricke

Authors
  1. D. Büttner
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  2. E. Hümmer
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  3. J. Fricke
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Editor information

Editors and Affiliations

  1. Physikalisches Institut, Universität, Am Hubland, D-8700, Würzburg, Fed. Rep. of Germany

    Jochen Fricke

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© 1986 Springer-Verlag Berlin Heidelberg

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Büttner, D., Hümmer, E., Fricke, J. (1986). Thermal Conductivity of Granular SiO2 Aerogel. In: Fricke, J. (eds) Aerogels. Springer Proceedings in Physics, vol 6. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-93313-4_14

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  • DOI: https://doi.org/10.1007/978-3-642-93313-4_14

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-16256-8

  • Online ISBN: 978-3-642-93313-4

  • eBook Packages: Springer Book Archive

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