论文部分内容阅读
建筑物外围护结构能耗中,建筑门窗的能耗约占40%～50%,在采用普通钢窗的采暖建筑物中,门窗的耗热约占建筑物耗热量的一半,甚至更多。因此,门窗是建筑节能的薄弱环节,也是建筑节能最有潜力的部件,研究门窗的节能技术已成为当务之急。一、门窗的能耗途径1.通过门窗空气渗透的能耗。在门窗密闭条件较差的建筑物中,通过空气渗透的能耗约占门窗的一半,空气渗透不仅耗能,还会造成居室温度波动和灰尘的侵入,这对于居室卫生是极为不利的,因此,近年来各类门窗都加强密封措施,并取得了显著的节能效果。2.通过门窗传热的能耗。建筑外窗的传热有玻璃和窗框两个途径。玻璃本身
Energy consumption of building envelope is about 40% ~ 50% of the energy consumption of building envelope. In the heating buildings with ordinary steel windows, the heat consumption of windows and doors accounts for about half or even more of the building’s heat consumption. Therefore, windows and doors are the weak link in building energy efficiency and the most potential component of building energy efficiency. Research on energy-saving technologies of windows and doors has become a top priority. First, the energy consumption of doors and windows 1. Through the doors and windows air penetration energy consumption. In buildings with poor closed doors and windows, the energy consumption through air infiltration accounts for about half of the doors and windows. Air infiltration not only consumes energy, but also causes room temperature fluctuations and dust intrusion, which is extremely unfavorable for residential hygiene. Therefore, In recent years, all kinds of doors and windows are to strengthen the sealing measures, and achieved significant energy savings. 2 through the windows and doors heat transfer energy consumption. The heat transfer outside the building has glass and window frames in two ways. Glass itself