%0 Report %D 1998 %T Validation studies of the DOE-2 Building Energy Simulation Program. Final Report %A Robert Sullivan %A Frederick C. Winkelmann %X

This report documents many of the validation studies (Table 1) of the DOE-2 building energy analysis simulation program that have taken place since 1981. Results for several versions of the program are presented with the most recent study conducted in 1996 on version DOE-2.1E and the most distant study conducted in 1981 on version DOE-1.3. This work is part of an effort related to continued development of DOE-2, particularly in its use as a simulation engine for new specialized versions of the program such as the recently released RESFEN 3.1. RESFEN 3.1 is a program specifically dealing with analyzing the energy performance of windows in residential buildings. The intent in providing the results of these validation studies is to give potential users of the program a high degree of confidence in the calculated results.

%G eng %L LBNL-42241 %1

Windows and Daylighting Group

%2 LBNL-42241 %0 Conference Paper %B Thermal Performance of the Exterior Envelopes of Buildings V Conference %D 1994 %T Modeling Windows in DOE 2.1E %A M. Susan Reilly %A Frederick C. Winkelmann %A Dariush K. Arasteh %A William L. Carroll %X

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.

%B Thermal Performance of the Exterior Envelopes of Buildings V Conference %C Clearwater Beach, FL %8 12/1992 %G eng %L LBL-33192 %1

Windows and Daylighting Group

%2 LBL-33192