Numerical Simulation on Thermal Radiation of Low Emissivity Glass Surfaces

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.