Field assessment of visual performance of a dynamic dual glazing assembly for occupants with lateral incident light
Etienne Magri (University of Malta)
Vincent Buhagiar (University of Malta)
Mauro Overend (TU Delft - Architectural Engineering +Technology)
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Abstract
Switchable glazing has made great strides to increase its potential of being deployed in adaptive building facades. These can provide shading solutions in climates with high solar insolation without compromising outlook and views, while allowing for privacy on demand. This paper further builds on previous knowledge and investigates the potential of a novel switchable assembly, comprising a dual dynamic solar-PDLC (Polymer Dispersed Liquid Crystal) and SPD (Suspended Particle Device) films, deployed in a side-lit, scale model setup for field testing. Using a comparative approach with static glazing, luminance photometry is used to determine the Daylight Glare Probability (DGP) provided by the different states of the switchable glazing. The measurements obtained assess the ability of this novel assembly of switchable films, to provide for privacy and glare control through the conversion of windows into opaque elements.
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