Raising High Energy Performance Glass Block from Waste Glasses with Cavity and Interlayer

Binarti, Floriberta and Istiadji, Ag. Djoko and Satwiko, Prasasto and Iswanto, Priyo Tri (2013) Raising High Energy Performance Glass Block from Waste Glasses with Cavity and Interlayer. In: Proceedings of the 4th International Conference on Sustainability in Energy and Buildings (SEB’12), 2013.

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Abstract

The main glazing energy performance measure in warm humid climates is light-to-solar-gain ratio (LSG), which denotes the ratio of the visible light transmittance (VT) and its solar heat gain coefficient (SHGC). In laminated glazing the LSG depends on the design of the cavity and (inter)layers. This study explored the contribution of cavity and interlayer in raising high energy performance glass block from laminated waste glasses. Analytical method and computational simulations using comparative method and heat balance model were employed to obtain glass block model with the most optimum combination of the VT, the SHGC and its thermal transmittance (U). The effect of cavity on increasing the VT was showed by simulation and laboratory test results. Based on SHGC laboratory tests, the presence of interlayer declined 69-89% of the simulated SHGC. Laminated glass block with certain number of closed cavity and interlayer can raise 4.35 of the LSG.

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