Road Lighting Quality, Energy Efficiency, and Mesopic Design - LED Street Lighting Case Study

Ylinen, Anne-Mari; T�hk�m�, Leena; Puolakka1, Marjukka; Halonen, Liisa
July 2011
Leukos;Jul2011, Vol. 8 Issue 1, p9
Academic Journal
Case Study
The topics of this paper are mesopic dimensioning, glare properties and energy efficiency of LED street lighting. Road lighting luminance measurements and threshold increment (TI) measurements are made for four different LED street lighting installations. The effect of mesopic dimensioning on energy consumption and life cycle costs of the LED installations are examined. Through the calculations and measurements, the energy efficiency and glare properties of the LED installations are analyzed. The measurement results indicate that the measured and calculated threshold increment values differ from each other due to varying calculation parameters in real installations. It also shows that energy can be saved when mesopic dimensioning is applied to street lighting design.


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