冬季晴天侧采光光导管实验研究  

EXPERIMENTAL RESEARCH ON SIDE LIGHTING LIGHT PIPE UNDER SUNNY CONDITIONS IN WINTER

作　　者：吴延鹏[1] 马重芳[1] 

机构地区：[1]北京工业大学环境与能源工程学院传热强化与过程节能教育部重点实验室,传热与能源利用北京市重点实验室,北京100022

出　　处：《工程热物理学报》2004年第S1期179-181,共3页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展规划项目(No.G2000026300)

摘　　要：通过实验研究了侧采光光导管的采光性能,测得白天的室内外照度。实验选择在冬季晴朗的天气进行,测得室外照度最大值为52900 lx,出现在12:05,最小值为396 lx,出现在16:50。室内70 cm高度处的平均照度最大值为129 lx,出现在13:35,最小值为0.47 lx,出现在16:50。采光系数为0.23％。实验表明光导管可以作为白天建筑物内的自然采光或辅助照明,并能取得良好的照明效果,是太阳能光利用的有效方式。Light pipe is one of the effective way to reduc?electricity consumption for lighting, it can transmit light from outdoor to the room without generating excessive heat. Experimental apparatus of side lighting light pipe is described in this paper. The illuminace of the light pipe for whole day had been measured. The highest external illuminace was 52900 lx, obtained at 12: 05; the lowest illuminace was 396 lx, obtained at 16: 50. The highest internai illuminace was 129 lx obtained at 13: 35, the lowest illum...

关 键 词：自然采光 光导管 照度 

分 类 号：TU113[建筑科学—建筑理论]