被动式超低能耗建筑门窗安装墙体洞口热桥分析

Analysis on Thermal Bridge of Door and Window Entrance Installed on Walls of Passive and Ultra-low Energy Building

门窗安装位置的选择对整窗的传热系数有着至关重要的影响,如果被动式超低能耗建筑门窗安装选择位置不当,就可完全抵消掉设计师对提高门窗本身的保温性能所做的研究设计^([1])。我们根据软件flixo pro 8计算模拟窗户洞口的线传热系数,得出门窗与不同墙体结构之间线传热系数最小的窗户安装位置和影响门窗洞口线传热系数的决定性因素。

The selection of the installation location of doors and windows has a vital impact on the heat transfer coefficient of the whole window.If the installation location for doors and windows of passive and ultra-low energy building is inappropriate,it can completely offset the designer’s research and design on improving the thermal insulation performance of doors and windows.According to the software flixo Pro 8,we calculated and simulated the linear heat transfer coefficient of the window entrance,and obtained the appropriate location for the window with the minimum linear heat transfer coefficient between the door and window and different wall structures,and identified the decisive factors affecting the linear heat transfer coefficient of the door and window entrance.