【摘要】 建立了低辐射能玻璃窗的物理传热模型 ,计算并分析反映窗户性能的两个参数 :传热系数U和太阳得热系数SHGC ,着重讨论了低辐射能玻璃窗的这两个参数的特点和影响因素 ,找出了其节能的机理。通过负荷模拟 ,研究了低辐射能窗户对空调能耗的影响 ,并在模拟结果的基础上 ,对我国 4种典型气候下最适宜使用的低辐射能玻璃窗进行了分析更多还原

【Abstract】 A model of heat transfer through low-E windows is developed. The two most important performance parameters-overall heat transfer coefficient (U value) and Solar Heat Gain Coefficient (SHGC) are calculated and analyzed. The factors that influence the two parameters of low E windows are discussed and the mechanism of why low-E windows can save building energy is discussed. It also gives an example of the simulation of the impact of low-E windows on air conditioning and heating energy cost in four typical climates in China. Based on the results of the simulation, the most eligible class of low-E windows is proposed for each climate for the best energy saving effect.更多还原