期刊
JOURNAL OF BUILDING ENGINEERING
卷 32, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jobe.2020.101665
关键词
Aerogel; Window frames; Thermal transmittance; Hot box measurements; Thermal simulations
资金
- Natural Sciences and Engineering Research Council of Canada
- Ontario Ministry of Research Innovation and Science
The poor thermal performance of windows can largely be attributed to their frames, which typically have higher thermal transmittance than the glazing portions. This study investigates an innovative polyvinyl chloride (PVC) window frame modified by inserting silica aerogel granules in the frame cavities. Experimental tests done in a hot box are described and compared with numerical modeling results. The direct object of the comparison was the difference in thermal transmittance of the frame, obtained by insulating frame cavities with aerogel. Both types of tests have confirmed that even with a simple PVC frame, it is possible to achieve at least 30% decrease of its thermal transmittance. The investigations allow discussing the importance of different frame cavities and of the frame orientation. Infrared imaging of the frame within the hot box enables analyzing the significance of the aerogel particle distribution and the edge effects. This paper supports experimentally the results obtained with numerical simulations. The research concludes that filling most of the existing cavities with aemgel granules would reduce the thermal transmittance of the case study frame to 0.80 W/m(2)K. Finally, this study confirms the feasibility of enhancing window frames with aemgel granules within the frame cavities.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据