Aerogel insulation
Aerogels have been in existence for more than 80 years. Invented in 1931 by Dr. Samuel Kistler at the College of the Pacific in California, silica aerogel is a lightweight solid derived from gel in which the liquid component of the gel has been replaced with gas. When the liquid is removed, what remains is “puffed-up sand," with up to 99% porosity. The result is an extremely low density solid with several remarkable properties, most notably its effectiveness as a thermal insulator. Aerogels also have value in emerging applications such as energy storage, filtration and carbon capture
The solids in silica aerogels are poor conductors, consist of very small, three-dimensional, intertwined clusters that comprise only 3% of the volume. Conduction through the solid is therefore very low. The remaining 97% of the volume of aerogels is composed of air in extremely small nanopores. The air has little room to move, inhibiting both convection and gas-phase conduction.
These characteristics make aerogels the world’s lowest density solid and most effective thermal insulator. After many decades as a laboratory curiosity, Aspen Aerogels has successfully commercialized a technically and economically viable form of aerogel for industrial and building insulation uses. These developments represent the first application of our Aerogel Technology Platform based on silica aerogels.
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Aerogels have been in existence for more than 80 years. Invented in 1931 by Dr. Samuel Kistler at the College of the Pacific in California, silica aerogel is a lightweight solid derived from gel in which the liquid component of the gel has been replaced with gas. When the liquid is removed, what remains is “puffed-up sand," with up to 99% porosity. The result is an extremely low density solid with several remarkable properties, most notably its effectiveness as a thermal insulator. Aerogels also have value in emerging applications such as energy storage, filtration and carbon capture
The solids in silica aerogels are poor conductors, consist of very small, three-dimensional, intertwined clusters that comprise only 3% of the volume. Conduction through the solid is therefore very low. The remaining 97% of the volume of aerogels is composed of air in extremely small nanopores. The air has little room to move, inhibiting both convection and gas-phase conduction.
These characteristics make aerogels the world’s lowest density solid and most effective thermal insulator. After many decades as a laboratory curiosity, Aspen Aerogels has successfully commercialized a technically and economically viable form of aerogel for industrial and building insulation uses. These developments represent the first application of our Aerogel Technology Platform based on silica aerogels.
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If you want more information about this article please cooment in comment box.
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Aerogel insulation
Reviewed by A civil Engineer
on
December 30, 2018
Rating:
Reviewed by A civil Engineer
on
December 30, 2018
Rating:
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