%0 Journal Article
%A Dariush K Arasteh
%A John Hartmann
%A Michael D Rubin
%B ASHRAE Transactions
%D 1987
%G eng
%L LBL-21576
%T Experimental Verification of a Model of Heat Transfer Through Windows
%V 93
%1 <p>Windows and Daylighting Group</p>
%2 LBL-21576
%X <p>A procedure has been developed for calculating the one-dimensional heat flux through complex window systems. A computer program embodying this procedure (WINDOW 2.0) is available to the public. The window may consist of multiple glass or plastic layers, separated by gas-filled spaces. Gases other than air may fill the space between solid layers, and the layers may have low-emissivity coatings. Measurements from five different manufacturers and researchers of the overall thermal conductance of various window systems confirm the validity of this model for a range of temperatures and layer spacings less than 3 cm (1.2 in). A list of U-values and shading coefficients is given for a representative group of windows.</p>