Study on solar heat gain and thermal transmittance of east-and west-facing double-skin façade in hot and humid climate

Abstract

Through numerical simulation, the solar heat gain and thermal transmittance of a double-skin façade in a hot and humid climate was investigated using Indonesia’s climate condition as a case study and considering the orientation (east and west), the thickness, and the distance between glass skins. The results show that as the thickness of the glass skins increases, the amount of solar heat gain decreases. Similarly, the wider the distance between the outer and inner glass skins, the lower the thermal transmittance. In comparison with single-skin façades, double-skin façades exhibit the best performance at reducing the solar heat gain.

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