WINDOW 4.0: Program description. A PC program for analyzing the thermal performance of fenestration products

Technical Report · Sat Feb 29 23:00:00 EST 1992

DOI:https://doi.org/10.2172/10183079· OSTI ID:10183079

WINDOW 4.0 is a publicly available IBM PC compatible computer program developed by the Windows and Daylighting Group at Lawrence Berkeley Laboratory for calculating total window thermal performance indices (e.g. U-values, solar heat gain coefficients, shading coefficients, and visible transmittances). WINDOW 4.0 provides a versatile heat transfer analysis method consistent with the rating procedure developed by the National Fenestration Rating Council (NFRC). The program can be used to design and develop new products, to rate and compare performance characteristics of all types of window products, to assist educators in teaching heat transfer through windows, and to help public officials in developing building energy codes. WINDOW 4.0 is a major revision to WINDOW 3.1 and we strongly urge all users to read this manual before using the program. Users who need professional assistance with the WINDOW 4.0 program or other window performance simulation issues are encouraged to contact one or more of the NFRC-accredited Simulation Laboratories. A list of these accredited simulation professionals is available from the NFRC.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 10183079
• Report Number(s): LBL--32091; TA--285; ON: DE93001468
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107
99 GENERAL AND MISCELLANEOUS
990200
BUILDING SYSTEMS
COMPUTERIZED SIMULATION
DAYLIGHTING
ENERGY CONSERVATION
GLASS
HEAT GAIN
HEAT TRANSFER
MATHEMATICS AND COMPUTERS
PERFORMANCE
PERSONAL COMPUTERS
REFLECTIVE COATINGS
SHADING
THERMAL INSULATION
U VALUES
W CODES
WINDOWS