北京地区窗墙比和遮阳对住宅建筑能耗的影响

以北京地区实际住宅建筑为研究对象,研究窗墙比和遮阳对住宅建筑能耗的影响。通过建筑能耗模拟软件DeST-h对住宅能耗的模拟,得到了各朝向房间的建筑负荷指标随窗墙比的变化规律,用多项式拟合得到建筑总能耗与窗墙比的回归方程,分析了适当采用遮阳对降低住宅能耗的作用。由结果分析出南向无遮阳时最合适的窗墙比为0.4,有遮阳时最合适的窗墙比为0.55;东、西、北方向采用较小的窗墙比有利于建筑节能。

Energy Consumption of Residential Building Influenced by the Window-wall Ratio and Sunshade in Beijing

It's the trend that modern buildings are designed with large windows for better ventilation and light.However,a proper window design will minimize the energy consumption.The energy consumption of a typical design of a building in Beijing was simulated by the software DeST-h to gain the changing regulation of rooms' load index with window-wall ratio.Research shows that the optimal window-wall ratio is 0.4,but when the window is installed with a sunshade,the best ratio is 0.55 in the south direction.In the ot...