建筑工程外窗的气密能耗研究

Energy Consumption of Windows Caused by Air Permeability in Construction Engineering

建筑工程中窗洞口的气密性要明显差于实验室条件下外窗的气密性,测试了目标外窗洞口在标准状态下的现场气密性。研发了连续性气压差测试装置,并利用测试装置对24 h内的室内外压差情况进行测试和记录,同时测试了同期室内外空气温度,分析了被测外窗空气渗透量与能耗之间的关系,利用测试数据对通过外窗的空气渗透引起的能耗进行分析,对比通过外窗传热引起的能耗量,得到了新方法测试外窗气密性能耗的可行性结论,对后续的进一步研究工作提出了建议。

The window opening in construction engineering has better air permeability than window in laboratory. The air permeability of the window opening was tested in standard condition. We made anew type device which can test air pressure continuously. We tested and recorded air pressure between the in-terior and the exterior in 24 hours. At the same time, the interior and exterior air temperature was tested. This paper analyzed the relationship between air permeability and energy consumption. It analyzed the energy consumption by testing data for the window, comparing the energy consumption through window heat transfer. The new method about air permeability testing was proved feasible. At last, suggestions for farther research work are proposed.