Computational analysis on the enhancement of daylight penetration into dimly lit spaces: Light tube vs. fiber optic dish concentrator

► Two different daylighting systems were analyzed to compare their performances. ► Light distribution curve of the daylight guidance system was generated by Photopia. ► Photometric data and images were generated by Radiance for comparative analysis. ► Dish concentrator daylighting systems were more effective at lower solar altitudes. ► Dish concentrator daylighting system showed smaller variations in uniformity ratio.