ANÁLISE DO DESEMPENHO LUMÍNICO DE ELEMENTO VAZADO ASSOCIADO À JANELA ALTA E À PRATELEIRA DE LUZ

Abstract

This research aimed to evaluate the luminic performance of perforated solar screen associated with the high window and the light shelf for an office environment located in a humid tropical climate. In the methodology, modeling was done with Rhinoceros 3D + Grasshopper and computer simulations using DIVA-for-Rhino. Two stages of simulations were performed for the North orientation. In the first stage, three models were evaluated: Model I (perforated solar screen); Model II (perforated solar screen + high window); Model III (perforated solar + high window + light shelf). In the second stage, using Model III as a base, four more situations were evaluated, varying the internal depth of the light shelf by 20 cm. For the analyzes, the UDI intervals (Useful Daylight Illuminances) proposed by Nabil and Mardaljevic (2006) were used as parameters. As a main result, the best performance was identified with the Model III10 (perforated solar screen + high window + light shelf of less internal depth), which reduced excessive lighting in the sections closest to the facade, more efficiently illuminated the deepest sections of the environment and guaranteed the highest percentage of hours (70%) in the recommended interval.