中空玻璃空气层厚度对传热系数的影响对比分析  

Comparative Analysis on Thermal Transmittance of Insulating Glass

作　　者：黄安龙 阳启航 HUANG Anlong;YANG Qihang(Guizhou Building Material Quality Supervision Testing Center,Guiyang 550000,China)

机构地区：[1]贵州省建材产品质量检验检测院,贵阳550000

出　　处：《玻璃》2023年第7期55-58,共4页Glass

摘　　要：中空玻璃的节能性能是建筑节能的关键部分,为了得到常规两玻一腔中空玻璃最佳空气层厚度,取民用建筑和家装常用的两种不同玻璃厚度的中空玻璃,使用紫外可见近红外分光光度计和傅立叶变换红外光谱仪分别对所选取的试验样品在250~2500 nm波长范围的光谱透射率、反射率,2500~25000 nm波长范围的远红外反射率进行测定,通过变换中空玻璃中间空气层厚度,计算出不同空气层厚度下中空玻璃稳态U值(传热系数)的变化曲线,从而得出随着中空玻璃空气间隔层厚度的增加,中空玻璃稳态U值先大幅度减小后略微增大,后趋于平稳。综合考虑经济效益等因素,两玻一腔中空玻璃空气层为15 mm时节能、经济效益最好。The energy saving performance of insulating glass is a key part of building energy saving.In order to obtain the optimal air layer thickness of conventional two-glass one-cavity insulating glass,select two thicknesses of insulating glass commonly used in civil buildings and home decoration,use an ultraviolet visible near infrared spectrophotometer and a fourier transform infrared spectrometer to measure the spectral transmittance and reflectance of the selected test samples in the wavelength range of 250 to 2500 nm,and the far infrared reflectance in the wavelength range of 2500 to 25000 nm.By changing the thickness of the intermediate air layer of the insulating glass,calculate the change curve of steady-state U values(thermal transmittance)of insulating glass under different air layer thicknesses to obtain that the steady-state U value(thermal transmittance)of insulating glass first decreases significantly,then slightly increases,and then tends to stabilize with the increase in the thickness of the air partition layer of insulating glass.Comprehensive consideration of economic benefits and other factors,two-glass one-cavity insulating glass air layer 15 mm time energy,the best economic benefits.

关 键 词：中空玻璃 空气层厚度 中空玻璃稳态U值(传热系数) 

分 类 号：TQ171[化学工程—玻璃工业]