【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。更多还原

【Abstract】 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 illuminace was 0.47 lx, obtained at 16: 50. The ratio of internai illuminance to external was 0.23%. Light pipe is much better as an auxiliary lighting method in buildings. Light pipe can give better luminous environment. It is an effective method of daylight utilization of solar energy.更多还原