多层玻璃窗应用于严寒地区宿舍的实测与模拟分析

Measurement and simulation analysis of multiple-glazing units applied to dormitories in severe cold regions

选取石河子大学一双层玻璃窗宿舍为实测对象,在供暖初期,在双层窗不同打开方式下进行室内热环境测试。数据显示,该宿舍热工性能良好,封闭环境下室内热环境稳定,室内平均温度维持在21℃左右,相对湿度在27%~50%RH之间,室内空气流速在0.1 m/s以内;通风形式下室内温度波动幅度较大。对维护结构的传热量分析发现通过屋顶的散热量最大,通过窗户的散热量在22%~35%之间。进一步在ANSYS Fluent平台下对不同类型多层玻璃窗的传热性能进行了分析,发现在相同窗厚下,增加空气夹层层数,能够极大地增强窗户的保温性能,从而达到节能的目的。

Taking a dormitory with double-glazing windows in Shihezi University as the measurement object, indoor thermal environment tests were performed under different opening modes of double-glazing windows in the early stage of heating. The data shows that the dormitory has good thermal performance and he indoor thermal environment is stable in a closed environment. The average indoor temperature is maintained at about 21 ℃, with the relative humidity between 27% and 50% RH, and the indoor air flow rate within 0.1 m/s. The indoor temperature fluctuates greatly under the ventilation. Through the analysis of heat transfer of the maintenance structure, it was found that the heat dissipation through the roof was the largest, and the heat dissipation through the windows was between 22% and 35%. After further analysis of the heat transfer performance of different types of multiple-glazing units on the ANSYS Fluent platform, it is found that increasing the number of air inter-layers under the same window thickness can greatly enhance the thermal insulation performance of windows, thereby achieving the goal of energy saving.