摘要
采用漫射封闭腔内非灰谱带模型 ,并结合玻璃吸收和透射的性质 ,对Low E玻璃镀膜侧表面的热辐射特性进行了数值模拟研究 .结果表明 :在相同条件下 ,Low E玻璃与普通透明玻璃所受到的辐射热流通量相差很大 .同时利用模型考察了玻璃温度、加热管温度以及玻璃透射率对Low E玻璃辐射换热的影响 .
As the thermal radiation of coating surface on Low E glass is strongly influenced by its spectrum, the nongray band model in diffusing enclosure was used to numerically simulate the surface radiative characteristics of Low E glass in combination with the glass properties of absorptivity and transmissivity. The results show that the value of recieved radiative heat flux between Low E glass and clear glass differs a lot under same condition. The model also shows the effects of glass temperature, heating tube temperature and glass transmissivity on radiative heat transfer of Low E glass.
出处
《建筑材料学报》
EI
CAS
CSCD
2002年第1期60-65,共6页
Journal of Building Materials
关键词
谱带模型
热辐射
数值模拟
低辐射率玻璃
monochromatic radiation
diffusing enclosure
Low E glass
band model
