Energy and Buildings, Vol.109, 369-376, 2015
Reducing solar effect on the glazing material based on using non-linear patterns
Glazing energy resulting from solar radiation can be a primary source to vary the thermal field inside of a building. As the glass material is loaded by excessive solar radiation, the drastic increase in the glazing energy yields the greater solar heat transferring indoors and thereby raises the interior temperature. Reducing the glazing energy or temperature resulting from solar radiation can be a solution to decrease the solar effect on the interior thermal field and subsequently advantageous to reduce energy demands. Therefore, this paper provides non-linearly patterned glass technology which incorporates non-linear patterns throughout the exterior surface of glass to reduce the solar effect on the glass material. Based on theoretical and experimental analyses provided in this paper, incorporating non-linear patterns over the glass surface is able to yield the increase in the incident angle as well as the decrease in the solar energy acting on the glass. Therefore, the temperature reduction of the solar-loaded glass material can be acquired as the non-linear pattern is applied. However, the thermal performance of non-linearly patterned glass is dependent on the pattern design. Reducing the dimension of the pattern spacing and/or the radius of curvature of the non-linearly pattern member helps decrease the surface temperature of glass under solar radiation. (C) 2015 Elsevier B.V. All rights reserved.