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.
Units: Dual
Citation: Symposium, ASHRAE Transactions, 1987, vol. 93, pt. 1, New York, NY
Product Details
- Published:
- 1987
- Number of Pages:
- 7
- File Size:
- 1 file , 520 KB
- Product Code(s):
- D-NY-87-15-2
