A Case Study on Energy-saving Renovation of LED Street Lights Based on Road Lighting Design
LIU Bingxuan
HU Xuegong
Abstract：This paper adopts a method that combines luminaire distribution design with road lighting design,optimizing for specific road segments.Leveraging a high-power,high-power density,compact,and lightweight integrated light source LED street light,which demonstrates excellent optical and thermal performance,a successful energy-saving renovation of LED lighting was achieved for a road segment in Changsha.The actual lighting effect align with the simulation results from the road lighting design software.The average illuminance(Eav)on the main road increased from 31 lx to 39 lx,a 23％ improvement.The uniformity of illuminance(UI)on the main road rose from 0.45 to 0.8,an 82％ increase.Additionally,the lighting power density(LPD)on the main road decreased from 0.89 W/m2 to 0.36 W/m2,a reduction of 60％ .For the upgraded LED floodlights at the intersection,the overall energy-saving rate for this section reached 66％ ,with a threshold increment(TI)value of only 0.42％ .The lighting comfort level significantly improved,and the lifespan of the fixtures was greatly extended,providing valuable reference for energy-saving renovations in road lighting and strong market promotion prospects.
Keywords：carbon neutralgreen lightinglighting energy-saving renovationroad lighting designhigh-power LED street light
Publication Date：2024-10-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 15-24 )