摘要
太阳辐射对供暖、空调负荷有重要的影响。在中国北方地区的建筑物的窗和墙面上,夏天希望尽可能的减少太阳照射,而冬天则希望多得到太阳照射。因此,遮阳板的合理设计就成为建筑节能的一个重要途径。该文根据天津地区典型气象年的气象资料,对该地区建筑南向窗遮阳板的构造进行建模分析,并对其节能前景进行预测。考虑到建筑物美观、遮阳板自身材料及建筑的层高等因素,在保证冬季的日照的前提下,天津地区南向窗遮阳板宽度宜取0.5-0.9m,距窗户上沿距离0.5-0.8m。安装遮阳板后,南向窗每个夏季可减少太阳辐射得热80-110MJ/m2。
Solar radiation has great effects on heating and cooling load of buildings. Gaining more solar radiation in winter and less solar radiation in summer is our goal for buildings in north China. Therefore, well-designed shade provides a way for energy-savings of buildings. Solar gain was simulated for exterior shade on southern window, and the energy savings of buildings was predicted according to typical year weather data for Tianjin. Considering of some factors such as facade of buildings, materials of shade and storey height, simulation results showed that the width of southern window shade should be 0.5-0.9 m and the distance between shade and upside of window should be 0.5-0.8 m in Tianjin to ensure sunlight and solar radiation received by windows in winter, and the window shade can reduce solar radiation in summer.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2005年第3期308-312,共5页
Acta Energiae Solaris Sinica
关键词
遮阳板
建筑节能
太阳辐射
典型气象年
Buildings
Cooling
Heating
Mathematical models
Solar radiation
