TY - JOUR
TI - Combined non-gray conductive and radiative heat transfer simulation of a single glass window subjected to solar and thermal radiation
AU - Khoukhi Maatouk
AU - Maruyama Shigenao
JN - Thermal Science
PY - 2015
VL - 19
IS - 12
SP - 581
EP - 589
PT - Article
AB - Combined nongray conductive and radiative heat transfer in single glass  window using the Radiation Element Method by Ray Emission Model REM2, has  been investigated in one dimensional case. The optical constants of the glass  window have been determined by using Fourier Transform Infrared  Spectrophotometer (FTIR). The absorption and emission within the glass layer  are taken into consideration. The boundary surfaces of the glass are  specular. Spectral dependence of radiation properties of the glass is taken  into account. Both collimated and diffuse solar and thermal irradiations are  applied at boundary surfaces, using the spectral solar model proposed by  Bird. The simulation has been performed for one position of the sun at noon  true solar time on the 5th of July for three locations in Japan, Sendai,  Tokyo, and Sapporo cities. Steady state temperature and heat flux  distributions within the glass layer for each position of the sun of the  three locations are obtained. The radiative heat flux through the glass  mediums is the predominant mode compared with the conductive one. Therefore,  the temperature distributions within the glass layer are not linear in shape.