[1]程励辉.室外温度及风速对中空玻璃传热的影响分析[J].福建理工大学学报,2023,21(06):517-522.[doi:10.3969/j.issn.1672-4348.2023.06.002]
 CHENG Lihui.Analysis of influence of outdoor temperature andwind speed on heat transfer of insulating glass[J].Journal of Fujian University of Technology;,2023,21(06):517-522.[doi:10.3969/j.issn.1672-4348.2023.06.002]
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室外温度及风速对中空玻璃传热的影响分析()
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《福建理工大学学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第21卷
期数:
2023年06期
页码:
517-522
栏目:
出版日期:
2023-12-25

文章信息/Info

Title:
Analysis of influence of outdoor temperature andwind speed on heat transfer of insulating glass
作者:
程励辉
广东省建筑科学研究院集团股份有限公司
Author(s):
CHENG Lihui
Guangdong Provincial Academy of Building Research Group Co., Ltd.,
关键词:
中空玻璃传热系数室外环境温度四分位法努谢热特数
Keywords:
insulating glassheat transfer coefficientoutdoor temperaturequartile methodNusseret number
分类号:
TU111.19;TU201.5
DOI:
10.3969/j.issn.1672-4348.2023.06.002
文献标志码:
A
摘要:
针对温度及风速对中空玻璃传热系数影响机制不明确的问题,采用因素分析法研究室外温度、风速对中空玻璃传热性能的影响,对比分析不同中空玻璃空腔内部换热方式及当量导热系数变化率;利用四分位数法探究了不同工程环境下,中空玻璃传热系数相对于产品设计基准值的偏离特征。结果表明:中空玻璃传热系数随室外风速升高而增大;普通中空玻璃空腔传热以辐射换热为主,而镀膜中空玻璃空腔传热以对流换热为主,且当空腔厚度在一定阈值内(普通中空玻璃约为20 mm,镀膜中空玻璃约为9 mm),空腔气体当量导热系数随室外温度升高而增大;中空玻璃传热系数出现负偏离较为显著。研究结果对优化工程项目的中空玻璃设计和产品选型具有指导意义。
Abstract:
In order to solve the problem that the influence mechanism of temperature and wind speed on the heat transfer coefficient of insulating glass is not clear, the influence of outdoor temperature and wind speed on the heat transfer performance of insulating glass is studied by factor analysis method, and the internal heat transfer mode and equivalent thermal conductivity change rate of different insulating glass cavities are compared and analyzed. The deviation characteristics of the heat transfer coefficient of insulating glass relative to the reference value of product design under different engineering environments are explored by using the quartile method. Results show that the heat transfer coefficient of insulating glass increases with the increase of outdoor wind speed. The heat transfer in the cavity of ordinary insulating glass is dominated by radiation heat transfer, while the heat transfer in the cavity of coated insulating glass is dominated by convection heat transfer. When the thickness of the cavity is within a certain threshold (about 20 mm for ordinary insulating glass and about 9 mm for coated insulating glass), the equivalent thermal conductivity of the cavity gas increases with the increase of outdoor temperature. The negative deviation of the heat transfer coefficient of the insulating glass is more significant. The research results have guiding significance for optimizing the design and product selection of insulating glass in engineering projects.

参考文献/References:

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更新日期/Last Update: 2023-12-25