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Author
Treado, S. | Francisco, C. | Holland, D.
Title
Validation of Daylight Prediction with CEL-1.
Coporate
National Bureau of Standards, Gaithersburg, MD
Sponsor
Naval Civil Engineering Laboratory, Port Hueneme, CA
Report
NBSIR 84-2937
December 1984
Distribution
Available from National Technical Information Service
Keywords
illuminance; interior lighting; daylighting; tests; predictions; office buildings; commercial lighting; windows; solar radiation; weather | solar radiation
Identifiers
CEL-1 computer program; computer aided design
Abstract
Calculations of interior illuminance levels using the CEL-1 computer program are compared to measurements, for a typical office space. The comparisons are made for a wide range of sky conditions, solar intensities and seasonal intervals using a north facing window. The statistical uncertainty associated with the interior daylight calculations is examined and the sources of the uncertainty are discussed.