WINDOW 4.1: Program description. A PC program for analyzing the thermal performance of fenestration products

Technical Report · Tue Mar 01 00:00:00 EST 1994

OSTI ID:10176432

This is a user`s manual for WINDOW 4.1, a publicly available IBM PC compatible computer program developed by the Windows and Daylight Group at Lawrence Berkeley Laboratory for calculating total window thermal performance indices (i.e. U-values, solar heat gain coefficients, shading coefficients, and visible transmittances). WINDOW 4.1 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 4.1 is an update to WINDOW 4.0. The Window 4 series is a major revision to previous versions of Window. The authors strongly urge all users to read this manual before using the program. Users who need professional assistance with the WINDOW 4.1 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 (address/phone included).

• Research Organization: Lawrence Berkeley Lab., CA (United States). Windows and Daylighting Group
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 10176432
• Report Number(s): LBL-35298; ON: UN94016219; TRN: AHC29419%%24
• Resource Relation: Other Information: PBD: Mar 1994
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
WINDOWS
W CODES
PERFORMANCE
U VALUES
SOLAR FRACTION
OPACITY
SHADING
COMPUTER PROGRAM DOCUMENTATION
COMPUTER CALCULATIONS
320107
990200
BUILDING SYSTEMS
MATHEMATICS AND COMPUTERS