商业内街天幕的遮阳效果分析

Shading Effect Analysis of Internal Street Canopy in Commercial Complex

商业内街天幕可作为受其遮挡影响的内街两侧立面的外遮阳构件,但现行的节能标准尚无对如此复杂的遮阳构件的遮阳效果的评价方法。以某商业综合体为例,通过数值模拟计算太阳辐射得热量的方法,分析天幕对商业内街立面的遮阳效果,对比有天幕与无天幕2种工况下外窗的太阳辐射得热量,得到该项目商业内街道立面外窗节能设计需要的外遮阳系数。

The internal street canopy in commercial complex can be considered as the shading components of the facade involved with the canopy, but there is no evaluation method in current energy efficiency standards for such a complex shading component. Taking a commercial complex as an example,this paper analyzes the shading effect of the internal street canopy to involved internal street facade through the numerical simulation method of heat gain of solar radiation, and finally gets the shouting coefficient for energy efficiency design.