The Drive towards Optimization of Road Lighting Energy Consumption Based on Mesopic Vision—A Suburban Street Case Study

Energies

Dariusz Czyżewski¹  CatalinD. Gălăţanu²  Irena Fryc³  Jiajie Fan⁴ 

[1] Electrical Engineering Faculty, Electrical Power Engineering Institute, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland;Faculty of Civil Engineering and Building Services, Technical University Gheorghe Asachi, Bd. Dimitrie Mangeron 1, 700050 Iasi, Romania;Faculty of Electrical Engineering, Bialystok University of Technology, Wiejska 45d, 15-351 Bialystok, Poland;Institute of Future Lighting, Academy for Engineering & Technology, Fudan University, Shanghai 200433, China;

关键词: lighting classes, mesopic illumination, LED lamps, eye spectral sensitivity;   

DOI  :  10.3390/en14041175

来源: DOAJ

【 摘 要 】

This paper presents the research of optimization of road lighting energy consumption by utilizing the fact of human twilight and night vision (mesopic vision) dependency on luminance level and lamp’s light spectral composition. The research was conducted for a suburban street illuminated by smart LED road luminaires with a luminous flux control system with which different luminance levels can be achieved on the road. This road is an access road leading to a town located on the outskirts of Warsaw which is the capital of Poland and a large metropolitan area. Therefore, the traffic here is quite heavy on this road in the morning and in the evening and it is very light at other times of the day. In accordance with EN 13201 standard, lighting control can be applied to illuminate this road. This paper compares energy consumption for different lighting scenarios of the road in question. In the first scenario, the road luminance is compliant with M4, M5, and M6 lighting class requirements depending on the time of the day. In the second scenario, for each M lighting class, the values of luminance levels provided by EN 13201 standard have been reduced to the values resulting from their conversion to the corresponding mesopic luminance values. The conducted research has shown that a 15% saving per year in electricity consumption on the road is possible with such a conversion. Therefore, energy efficiency of a lighting installation can be improved by matching the lighting levels provided by the standard to the mesopic vision.

【 授权许可】

Unknown