用综合能耗机理探讨外窗节能途径

Discussion on the way of energy saving of window by compvehensive energy consumption mechanism

窗户节能是建筑节能的重点之一。本文从综合能耗机理出发,重点分析双层窗温差传热和渗风同时作用的热质传递过程,建立物理、数学模型,导出综合能耗计算方法,得出冷风渗进窗能耗是渗出窗的两倍以上。据分析结果提出外窗节能途径和保温窗发展型式。

Firstly, energy saving of windows is one of the key problems in energy saving of builings. Based on the compvehensive energy consumption mechanism, this paper analyses the transfer process of heat and mass of double -glaying windows under the simultaneous action of both heat - transfer and cold blast osmosis, for which the models of physics and mathematics are eatblished, and a calculating formula is also presented. And it is concluded that permeation of cold blast in to the window consumes twice energy as mush as that out of the window. Finally the paper presents the energy saving way of windows and develops forms of heat - insulation windows.