Lighting design of underground parking with tubular daylighting devices and LEDs

In the paper, we made full use of daylight and electrical artificial light sources to achieve energy saving and comfortable lighting environment. Field investigation of the lighting design of one underground parking in Dalian Nationalities University of China was investigated and improved by simulation. The tubular daylighting devices and LEDs were used to the lighting design of the underground parking. The light distribution curve of the tubular daylighting device was simulated by the software of Tracepro and put into DIAlux for lighting design with LEDs. The simulation results show that the hybrid lighting system with daylight and LEDs meet the lighting standard. Annual energy savings of underground parking is 60.4%.