ANÁLISE DO DESEMPENHO LUMÍNICO DE AMBIENTES INTERNOS A PARTIR DA ATUAÇÃO DE ELEMENTOS VAZADOS

Abstract

This research proposes to evaluate an indoor environment luminic performance composed by an envelope perforated solar screen based on a generic office case study, located at Vitória-ES. The methodology was done through Grasshopper, a Rhinoceros 3D software algorithm editor, using daylight simulations with DIVA-for- Rhino plug-in. The indoor environment has a rectangular shape which was assessed 4 façade models: one fully glazed and others composed by glass and perforated solar screen, as a second architecture skin. The same aperture area percentual was applied on models that have perforated solar screen which differ only on its quantities and holes dimensions. The luminic performance was analised by Useful Daylight Illuminance (UDI) and uniformity indexes indicated by NBR ISO/CIE 8995-1 (ABNT, 2013). It was concluded that, despite being kept the same aperture area percentual for the three perforated solar screen models, they presented different performances. As there was an increase in number of holes and also the reduction of their size, the result was a reduction of excessive lighting. However, this also increased need of light at the deepest point of the environment. Regarding the uniformity index, none of the evaluated models reached the minimum uniformity limit of 0.6 established by NBR ISO / CIE 8995-1 (ABNT, 2013).