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Abstract
Interior environments are directly affected by the transmission of heat energy through unprotected windows. At the point of transmission at the window plane, various methods of creating a barrier can be constructed to obstruct the energy transmission by modifying the air convection loops that pass in front of the window. Drapery is likely to be the most widely accepted and applied method of shielding the window. There are endless varieties of drapery fabric that are available for use for drapery construction. The drapery used in this research was “Meta–lon” aluminized drapery because of the advertised energy–saving quality. When tested in the Test Unit Controlled Environment (TUCE), the Metalon drapery provided a barrier for the transmission of heat to the interior air volume of the TUCE. The drapery displayed the ability to transmit less of the absorbed heat from the fabric than conventional drapery. As a result of lower heat transmission rates than ordinary drapery fabric, the air plane on the interior room side of the drapery absorbed less transmitted energy. Therefore, the natural convective loops that normally disperse the heat energy were cooler than those tested with the application of the conventional drapery. The use of the aluminum impregnated drapery can provide energy savings when combined with proper drapery management (opening and closing drapery at the proper time in the day according to needs).
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