隧道灯具光线分布对照明指标的影响分析

安全与节能问题是目前隧道照明的关注重点,实现低能耗高效能成为隧道照明设计的目标。通常来讲路面照度和亮度是评价照明效果的重要指标,但是相关规范仅仅指出路面照度和亮度与路面的材料、颜色有关,给出了两者的大致关系。通过照明软件DIALux进行数值模拟,计算分析了不同照明灯具光线分布对隧道照明指标的影响,得出在同样的光通量的情况下,灯具光线分布对路面照度和亮度的影响较大,同时对路面照度和亮度之间的关系影响也较为显著。研究可知当采用最佳配光曲线的灯具时可将路面亮度提高约46%,结论对分析隧道照明参数影响因素具有重要意义。

Influence Analysis of Tunnel Luminaire Light Distribution on Lighting Index

The problem of safety and energy saving is the focus of tunnel lighting,and the realization of low energy consumption and high efficiency is the goal of tunnel lighting design.In general,the illumination and luminance of the road surface are important index to evaluate the effect of illumination.The relevant regulations only point out that the illumination and brightness of the road are related to the material and color of the road surface.This thesis analyzes the influence of different lighting light distribution of tunnel hghting index calculation by the means of the numerical simulation of DIALux.In the same flux conditions,the light distribution of lamps and lanterns has bigger influence on the pavement illuminance and luminance.At the same time,its influence on the relationship between the pavement illuminance and luminance are significant.In short,if the lamps of best light distribution curve is used to tunnel lighting,the brightness of road surface can be improved about 46％.This conclusion has important sianificances for the analysis of the influence factors of tunnel lighting parameters.