根据光气候数据确定隧道洞外景物亮度的方法
Method of determining typical elements’luminance at tunnel portals according to the data of luminous climate
翁季 1张婷1
作者信息
- 1. 重庆大学 建筑城规学院，山地城镇建设与新技术教育部重点实验室 重庆 400045
- 折叠
摘要
具体某地区隧道洞外景物亮度参考值的确定一直缺乏方便可靠的方法。为了解决这一问题，根据隧道照明的实际需求，以重庆地区一年的光气候实测数据为依据，首先以垂直面照度映射洞外景物亮度，分析它的各影响因素，然后建立了不同朝向垂直面转换发光功效和晴朗指数及太阳高度角的数学模型。经过与重庆地区其他年份实测数据的对比，证明该模型具有较高的精度。基于光气候数据中长期连续的水平太阳辐射及天气状况的观测，该方法可快速且相对精确地确定洞外景物亮度参考值。
Abstract
There is short of reliable methods to determine typical elements’reference luminance at tunnel portals in a certain area.In order to solve this problem,the measured data of luminous climate of a year in Chongqing was firstly used to investigate the reflection of vertical illuminance on the typical elements’ luminance.The influencing factors were studied to develop the mathematical models of vertical conversion luminous efficacy and clearness index as well as solar altitude in four directions.Compared with the data collected inanother year in Chongqing,model shows relatively high precision.On the base of long-term continuous measurement of solar radiation and weather conditions among the luminous climate data,this method could be used to determine typical elements’reference luminance at tunnel portals effectively and relatively accurately.
关键词
洞外景物亮度/光气候/发光功效/晴朗指数/太阳高度角Key words
typical elements’luminance at tunnel portals/luminous climate/luminous efficacy/clearness index/solar altitude引用本文复制引用
出版年
2015
NETL
NSTL
维普
万方数据