RESEARCH ON LIGHTING POWER DENSITY AND ENERGY-SAVING TECHNIQUES OFSPORTS LIGHTING

Lighting power density (LPD) is one of the most important evaluation index for energy-savings, which has been used as standard in USA, China, Singapore and so on. According to the practice, the standard in China helped reduce LPD by 20 percent, contributing a lot to China's energy-saving goals. The sports lighting is characterized by high-power, much energy consumption and great potential in energy-saving as well. In this study, LPD limits for different sports venues have been determinated according to the requirements of sports lighting, the fundamental of sports lighting design, which is important to the saving of lighting energy consumption. Also the technique of computer simulation, the data accumulation of vast engineering practice, the analysis of key points of lighting energy-saving and the improving method of utilization factor of luminaire are essential in the determination of LPD limits.