遮阳与保温一体化窗户系统及保温性能研究  

Research on the Integrated Shading and Thermal Insulation Window System and Thermal Performance

作　　者：左春雷 葛坚[1] 赵康 沈杰[1] ZUO Chunlei;GE Jian;ZHAO Kang;SHEN Jie(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,Zhejiang,China)

机构地区：[1]浙江大学建筑工程学院,浙江杭州310058

出　　处：《建筑科学》2022年第4期121-127,共7页Building Science

基　　金：浙江省重点研发计划项目(2021C03147)。

摘　　要：在既有建筑中,窗户通常是围护结构中保温隔热性能最差的构件,是建筑节能改造的重点;直接更换高性能窗户造价高,且会影响墙体的原有构造并产生建筑垃圾。本文设计了一种用于提高窗户系统遮阳保温性能的窗户附件———遮阳与保温一体化装置,并采用防护热箱法测试了窗户系统的热阻;实验用的窗户系统为双层玻璃,遮阳与保温一体化装置安装在玻璃冷侧;实验中考虑了该装置的空腔结构、材料热阻和材料表面发射率对窗户系统热阻的影响。实验结果显示,窗户系统热阻可达到0.66~0.80(m^(2)·K)/W,是双层玻璃热阻的3~4倍,传热系数为1.05~1.23 W/(m^(2)·K)。In existing buildings, windows are the component with the worst thermal insulation performance in the envelope structure, and they are the focus of energy-saving renovation of buildings. It is expensive to directly install the high-performance windows as this will affect the original structure of the wall and generate construction waste. Therefore, a window attachment to improve the energy efficiency of window—An Integrated Device of Shading and Thermal Performance, was proposed in this paper. And the thermal resistance of the window systems was tested by the guarding hot-box method. The window systems used in this paper are double-glazing with an Integrated Device of Shading and Thermal Performance being installed on the cold side;the effects of the cavity structure, material thermal resistance and material surface emissivity of the device on the thermal resistance of the window system are considered in the test. It is demonstrated that the thermal resistance of the window system reaches 0.66~0.80(m^(2)·K)/W, and is 3~4 times compared with double-glazing glass(3 mm+9 A+3 mm), and the heat transfer coefficient is 1.05~1.23 W/(m^(2)·K).

关 键 词：窗户系统 遮阳保温一体化装置 热阻 保温性能 

分 类 号：TU111.19[建筑科学—建筑理论]