Determination of optimum air-layer thickness in double-pane windows

Determination of optimum air-layer thickness in double-pane windows In this study, heat transfer through a double-pane window is numerically analyzed by a finite difference technique. The aim of the study is to determine the thermally optimum air-layer thickness between the two panes for different climates. Four different cities of Turkey, representing different climate conditions are considered: Ankara, Antalya, Kars and Trabzon. The height of the window, H is chosen 80 cm. The effect of air-layer thickness varies between 3 and 40 mm on the average Nusselt number and the heat flux through the inner pane. It was shown that energy losses through the double-pane windows can be considerably reduced by optimizing the thickness of air layer. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Energy and Buildings Elsevier

Determination of optimum air-layer thickness in double-pane windows

Energy and Buildings, Volume 32 (3) – Sep 1, 2000

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Publisher
Elsevier
Copyright
Copyright © 2000 Elsevier Ltd
ISSN
0378-7788
eISSN
1872-6178
DOI
10.1016/S0378-7788(00)00057-8
Publisher site
See Article on Publisher Site

Abstract

In this study, heat transfer through a double-pane window is numerically analyzed by a finite difference technique. The aim of the study is to determine the thermally optimum air-layer thickness between the two panes for different climates. Four different cities of Turkey, representing different climate conditions are considered: Ankara, Antalya, Kars and Trabzon. The height of the window, H is chosen 80 cm. The effect of air-layer thickness varies between 3 and 40 mm on the average Nusselt number and the heat flux through the inner pane. It was shown that energy losses through the double-pane windows can be considerably reduced by optimizing the thickness of air layer.

Journal

Energy and BuildingsElsevier

Published: Sep 1, 2000

References

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