• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.28 no.2
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• pp.63-68
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• 2016

To study the effect of installation and the shapes of filling pieces used for windows on the infiltration rate, infiltration tests were performed with two types of sliding windows and two shapes for the filling pieces. Infiltration occurred most at the top and bottom parts of the center location where two windows overlap, indicating the necessity of a filling piece to be installed at these locations. Infiltration velocity is proportional to the square root of the pressure difference, complying well with the theoretical correlation. Infiltration is reduced about 50% by the filling piece installation. This study shows that filling pieces are essential and their shapes play significant roles in reducing the infiltration of windows.