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本文分析了双层窗渗风和温差传热同时存在时的热质传递过程,建立了物理模型,导出了其综合耗能的理论计算公式,并进行了实验测定。理论分析和实测均表明,外窗的实际总能耗大约是现行设计值的0.83(渗进窗)及0.20(渗出窗)倍。本文研究还表明,对于双层窗渗风量的测定可通过测定夹层无因次温度系数间接进行,这为整体建筑物长期连续的渗风测定提供了一种简易的方法和理论依据。
This paper analyzes the heat and mass transfer process when the double-layer window seepage and temperature difference heat transfer co-exist, establishes a physical model, and derives the theoretical calculation formula of its comprehensive energy consumption, and conducts experimental measurements. Both theoretical analysis and actual measurement show that the actual total energy consumption of the external window is approximately 0.83 (infiltration window) and 0.20 (exit window) times the current design value. The research in this paper also shows that the determination of the double-window infiltration volume can be indirectly conducted by measuring the non-dimensional temperature coefficient of the interlayer, which provides a simple method and theoretical basis for long-term continuous measurement of the infiltration of the entire building.