Daylighting simulation in the DOE-2 building energy analysis program |
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Authors: | Frederick C Winkelmann Stephen Selkowitz |
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Affiliation: | Energy Efficient Buildings Program, Applied Science Division, Lawrence Berkekeley Laboratory, Universty of California, Berkeley, CA 94720 U.S.A. |
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Abstract: | A daylighting calculation has been intergrated grated into the DOE-2 building energy analysis computer program. Users can, for the first time in a widely-accepted, publicly-available program, determine the impact of daylight utilization on heating and cooling loads, energy use, energy cost, and peak electrical demand. We describe the algorithms which simulate hourly-varying interior illuminance, management of windows for sun and glare control, and the operation of electric lighting control systems. Sample DOE-2 daylighting output reports are presented and results of program validation against scale model illuminance measurements using the Lawrence Berkeley Laboratory sky simulator are discussed. |
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