在建筑外围护结构中,通过外窗消耗的能耗最大.在玻璃窗各项参数当中,传热系数K值和遮阳系数Sc是两个最大的影响因素.分析国内外建筑节能标准的演变,指出了门窗对建筑节能的重要性及门窗性能评价的基本方法,并分析了玻璃窗K值和Sc值对通过外窗能耗的影响,以期引起业内对门窗玻璃节能作用的重视.%The majority of energy consumption of building structure is through windows. Among various parameters of glass windows, thermal transmission coefficient (K value) and shading coefficient (Sc) are the most influential factors. The paper introduced the development of energy saving standard in China and at overseas, emphasized on the importance of windows in energy saving of building, and described the basic evaluation methods of properties of windows. It analyzed the influence of K and Sc values of glass on external window. The paper calls for industrial attention to the energy-saving effect of glass on doors and windows.
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