TY - CONF
T1 - Modeling Windows in DOE 2.1E
T2 - Thermal Performance of the Exterior Envelopes of Buildings V Conference
Y1 - 1992/12//
A1 - M. Susan Reilly
A1 - Frederick C. Winkelmann
A1 - Dariush K. Arasteh
A1 - William L. Carroll
AB - The most recent version of the DOE-2 building energy simulation program, DOE-2.1E, provides for more detailed modeling of the thermal and optical properties of windows. The window calculations account for the temperature effects on U-value, and update the incident angle correlations for the solar heat gain properties and visible transmittance. Initial studies show up to a 30% difference in calculating peak solar heat gain between the detailed approach and a constant shading-coefficient approach. The modeling approach is adapted from Lawrence Berkeley Laboratorys WINDOW 4 computer program, which is used in the National Fenestration Rating Council (NFRC) U-value rating procedure 100-91. This gives DOE-2.1E the capability to assess the annual and peak energy performance of windows consistent with the NFRC procedure. The program has an extensive window library and algorithms for simulating switchable glazings. The program also accounts for the influence of framing elements on the heat transfer and solar heat gain through the window.
JF - Thermal Performance of the Exterior Envelopes of Buildings V Conference
CY - Clearwater Beach, FL
U1 - Windows and Daylighting Group

U2 - LBL-33192
ER -
TY - RPRT
T1 - Window 4.0: Documentation of Calculation Procedures
Y1 - 1993/
A1 - Elizabeth U. Finlayson
A1 - Dariush K. Arasteh
A1 - Charlie Huizenga
A1 - Michael D. Rubin
A1 - M. Susan Reilly
AB - WINDOW 4.0 is a publicly available IBM PC compatible computer program developed by the Building Technologies Group at the Lawrence Berkeley Laboratory for calculating the thermal and optical properties necessary for heat transfer analyses of fenestration products. This report explains the calculation methods used in WINDOW 4.0 and is meant as a tool for those interested in understanding the procedures contained in WINDOW 4.0. All the calculations are discussed in the International System of units (SI).
U1 - Windows and Daylighting Group

U2 - LBL-33943
ER -