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Daylight availability as a function of atmospheric conditions

Conference ·
OSTI ID:6882843

This paper reviews the differences between thermal and daylighting considerations for building design and their implications for using illuminance and irradiance data. Old and new mathematical models for luminance distribution and illuminance calculation are explained. Overcast, clear, and average sky conditions are discussed and their dependence on atmospheric factors is examined. The focus is on the turbidity of the clear atmosphere and the luminance at the zenith. It is concluded that more measured daylighting data are required for validating the equations that have been developed separately in various parts of the world.

Research Organization:
Lawrence Berkeley Lab., CA (USA)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
6882843
Report Number(s):
LBL-16425; CONF-831069-5; ON: DE84007973
Country of Publication:
United States
Language:
English

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