摘要
采用超薄玻璃对既有建筑外窗进行改造,研发了一种薄型三玻两腔中空玻璃,旨在通过优化玻璃厚度、调整低辐射涂层数量与位置、填充不同惰性气体等措施来研究其对薄型中空窗热工性能的影响.首先采用层次聚类与K-means聚类法对国际玻璃数据库(IGDB)的低辐射玻璃进行聚类,确定了7种典型类型.而后以既有外窗窗框结构为约束条件,提出了内置薄玻、改变低辐射涂层位置及种类、变更空腔填充介质等单一或组合改造策略.利用WINDOW、THERM、Optics软件计算了不同改造策略下薄型中空外窗的热工性能,并搭建了全尺寸实验平台对薄型中空窗的热工性能开展了实测研究.最后通过E-FAST敏感性分析方法量化了不同改造策略对热工参数的影响.结果表明,相较于低辐射中空窗,改造后的薄型中空窗的传热系数可降低30.64%;空腔填充介质和低辐射涂层种类是影响薄型中空窗热工性能的关键参数;相较于更换整窗的改造方式,使用薄型中空玻璃进行外窗改造的方式可降低83%~87%的材料成本.
Ultra-thin glass is used to renovate windows.The thin-glass triple-pane glazing with two cavities is developed,so as to investigate the impacts on the thermal performance of the windows by optimizing glass thickness,adjusting the number and position of low emissivity(low-E)coatings,and filling different inert gases.Firstly,hierarchical and K-means clustering methods are used to cluster glass types in the International Glazing Database(IGDB)to determine seven low-E glass types.Secondly,based on typical window frame structures,single or combined strategies such as inserting thin glass,adjusting the low-E coatings,and changing the filling medium are proposed.Then,based on WINDOW,THERM,and Optics,the thermal performance of thin insulating windows under different renovation strategies is analyzed,and a full-scale experimental platform is built to conduct experimental research on the thermal performance of thin insulating windows.Finally,the impact of different renovation strategies on thermal parameters is quantified by the E-FAST sensitivity analysis method.The results show that compared with low-E insulating windows,the heat transfer coefficient of the renovated thin insulating window can be reduced by 30.64%.The type of cavity medium and low-E coating are the key parameters affecting the thermal performance of thin insulating windows.Compared with the renovation method of replacing the whole window,the renovation method of using thin-glass triple-pane glazing for window renovation can reduce material costs by 83%~87%.
作者
彭晋卿
都禹辰
谭羽桐
李厚培
罗伊默
PENG Jinqing;DU Yuchen;TAN Yutong;LI Houpei;LUO Yimo(College of Civil Engineering,Hunan University,Changsha 410082,China)
出处
《湖南大学学报(自然科学版)》
北大核心
2025年第11期154-163,共10页
Journal of Hunan University:Natural Sciences
基金
国家重点研发计划项目(2023YFC3806202)。
关键词
超薄玻璃
中空玻璃窗
热工性能
低辐射玻璃
ultra-thin glass
hollow glass window
thermal performance
low-E glass
