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Proceedings Paper

Advanced windows with a wide range in solar transmittance
Author(s): Volker Wittwer; Andreas Gombert; Wolfgang Graf; Michael Koehl
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Paper Abstract

Improved and intelligent windows are an important component to minimize the energy consumption of houses. On the one hand highly insulating windows with low U-values (high R-value) are necessary to reduce the heat transmission losses during the cold season, but on the other hand, components with high solar transmittance are desirable to get solar gains in the same period of the year. In addition, overheating problems might occur during summer, so smart windows with variable characteristics might be useful. These demands are just conflicting. Recent developments to overcome this problem are summarized. The combination of new technologies like antireflection layers, low emission coatings and switchable films may give a chance to produce smart windows with a wide dynamic range in solar transmittance.

Paper Details

Date Published: 23 August 1995
PDF: 9 pages
Proc. SPIE 2531, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIV, (23 August 1995); doi: 10.1117/12.217322
Show Author Affiliations
Volker Wittwer, Fraunhofer-Institut fuer Solare Energiesysteme (Germany)
Andreas Gombert, Fraunhofer-Institut fuer Solare Energiesysteme (Germany)
Wolfgang Graf, Fraunhofer-Institut fuer Solare Energiesysteme (Germany)
Michael Koehl, Fraunhofer-Institut fuer Solare Energiesysteme (Germany)


Published in SPIE Proceedings Vol. 2531:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIV
Carl M. Lampert; Satyen K. Deb; Claes-Goeran Granqvist, Editor(s)

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