玻璃幕墙建筑的室内光污染和热环境研究

Research on Indoor Light Pollution and Thermal Environment in the Building Equipped with Glass Curtain Wall

本文针对幕墙玻璃材料带来的室内光污染和热环境问题进行了幕墙玻璃的透射、反射和遮阳等参数的实验室测定,并针对福建省福州市的1栋玻璃幕墙建筑进行了模拟分析。结果表明:无论采用哪种类型的幕墙玻璃,室内照度最小值高达1 058.03 lx,峰值甚至达到了4 281.96 lx,导致了室内光环境的恶化;建筑全年冷热负荷面积指标合计最小值为221.6kWh/m2,其中较好的是贴膜玻璃、镀膜玻璃和Low-E玻璃。另外,通过对全年累计冷、热负荷指标的分析,可知虽然Low-E玻璃和镀膜玻璃的全年累计冷热负荷面积指标合计小于涂膜玻璃,但是其全年累计热负荷却大于涂膜玻璃,这在一定程度上说明了Low-E玻璃和镀膜玻璃在冬季对太阳能供暖效应的利用不如涂膜玻璃。

In this paper,according to the indoor light pollution and thermal environment problems caused by the glass material of curtain wall,the parameters of curtain wall glass as transmission,reflection,sun shading,etc.were measured,and one glass curtain wall building in Fuzhou was simulated and analyzed.The results demonstrated that no matter which type of curtain wall glass was adopted,the minimum value of indoor intensity of illumination was 1 058.03 lx,the peak value even reached at 4 281.96 lx,which resulted in the deterioration of indoor light environment.Furthermore,the annual total minimum value of the cooling /heating load area index was 221.6 kWh /m2,and the filmed glass,coated glass and Low-E glass had better performance.In addition,through the analysis,it was known that although the annual accumulated cooling /heating load area indexes of the Low-E glass and coated glass were less than that of the filmed glass,their annual accumulated heating loads were larger than that of the filmed glass,which indicated that the utilization of solar energy heating effect of Low-E glass and coated glass was not as good as that of the filmed glass in winter.