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通过对南京地区某双层玻璃幕墙建筑在夏季白天不同运行模式下的表皮各层和室内温度分布对比实测,分析该建筑的热特性.结果表明:在9.5 h内,房间B在外层通风口打开、内层表皮紧闭、中间遮阳完全启用的情形下,空调系统能耗比房间A在内外层表皮均完全紧闭、无遮阳设施情形下减少21.0%.玻璃幕墙各层表皮和室内各状态点的温度沿水平和垂直方向的分布规律均受到遮阳状态的显著影响.中间遮阳设施的启用有助于强化热通道的烟囱效应.相较于房间A,房间B的温度分布更加均匀.但在所有的测试工况下,双层玻璃幕墙热通道的过热问题始终存在.
The thermal characteristics of the double-glazed curtain wall building in Nanjing during different daytime operating modes are compared and analyzed by analyzing the temperature distribution in different layers of the building in Nanjing during the daytime.The results show that in 9.5 hours, the room B is opened in the outer vents , The inner epidermis is closed tightly and the middle shade is fully activated, the energy consumption of the air conditioning system is completely closed than that of the room A in the inner and outer skins, and 21.0% in the case of no shade facilities. The distribution of temperature in the horizontal and vertical directions is significantly affected by the sun-shading condition.The opening of the middle sun-shading facility helps to strengthen the chimney effect of the hot aisle, the temperature distribution in room B is more uniform than in room A. However, Of the test conditions, the hot double-glazed curtain wall overheating problems always exist.