| Title |
Development of Daylighting Prediction Methods for Toplighted Atriums |
| Abstract |
Daylight prediction algorithms are developed for atriums under various sky conditions. In 4-sided and linear atriums empirically-based algorithms are developed for the prediction of light levels on the horizontal surfaces of the atrium, and also on the vertical wall surfaces of the atrium. In addition, direct sun impacts are simulated for linear atriums with closed sides.Actual measurements were conducted at four existing Texas buildings in Dallas and College Station for the full-scale building tests. The case study buildings include one 4-sided atrium(Animal Science Building), and three linear atriums(Diamond Shamrock Building, Dallas Gty Hall, and Soil and Crop Science Building).Only the Diamond Shamrock Building and the Dallas City Hall are included in this paper. In the actual building measurements, horizontal illumination levels were measured, and these horizontal light levels were measured on the atrium floor and at wall surfaces on the upper floors. |