Daylight prediction algorithms developed at the Solar Energy Research Institute (SERI) and incorporated into existing software have been utilized to determine daylight distribution patterns and levels in eight Texas buildings. Predictions are determined for both clear and overcast sky conditions for six atrium spaces and two lightshelf spaces of which similar units adjoin atrium courts. The six atrium spaces include sidelighting as well as toplighting configurations. Distribution patterns are then compared between these different types of building configurations. Daylight measurements have also been made in each of these spaces and these results are compared on an intra-building basis to the prediction patterns that apply. The evaluation period utilized in the analyses is 12 noon at the equinox period.

Units: Dual