Abstract
In this study the five-phase method and a parallelized invocation of evalglare has been used, to evaluate the performance of a microstructure and a Low-E window w/wo external blind, in terms of glare. The first part of the results investigates how Bidirectional-Scattering-Distribution-Functions, BSDF, and aBSDF (Aperture BSDF) properties bias the predicted glare through a microstructure, linking BSDF rank to saturation glare and resolution to contrast glare. The investigation found a combination of correct rank, low resolution and peak extraction (aBSDF) to be the best trade-off between speed and accuracy. The later comparison found none of the investigated systems to be sufficient glare protection. The microstructure was found to outperform the external blinds, using the current shading schedule (9% peak difference in occupied hours exceeding a DGP of 0.45).
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