Algorithms for calculation of daylight factors in streets

Presents algorithms for the calculation of sky components and daylight factors in linear building structures using the solid angle projection method. In order to estimate the precision of calculations, 2 sky models are used: the uniform sky and the CIE overcast sky. Both give equal illuminance on the horizontal plane. Daylight factors calculated for CIE overcast sky are also compared to daylight factors measured in a physical scale model of a linear atrium in an artificial sky of the mirror-box type. (Original abstract)