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运用动态负荷理论、反应系数法进行建筑围护结构的不稳定传热计算和玻璃窗热负荷的逐时计算。在对不同窗型，即单层窗、双框双层窗和单框双层窗分别进行分析计算，并且对双层玻璃间的不同厚度的空气层对窗户热负荷的影响进行计算机模拟分析后，得出了空气层厚度为４０ｍｍ的单框双层窗是最佳节能型窗户的结论。
Dynamic load theory and reaction coefficient method were used to calculate the unsteady heat transfer of the building envelope and calculate the heat load of the glass window from time to time. Different types of windows, namely single-layered windows, double-framed double-layered windows, and single-framed double-layered windows were analyzed and calculated, and the effects of air layers with different thicknesses on the thermal load of the windows between double-glazed glass were analyzed by computer simulation. It is concluded that the single-frame double-layered window with an air layer thickness of 40 mm is the best energy-saving window.