ANÁLISE DO DESEMPENHO TÉRMICO DE ELEMENTOS VAZADOS COMO SEGUNDA PELE EM AMBIENTE DE ESCRITÓRIO

Abstract

This research aimed to evaluate the influence of different parameters on the thermal performance of the perforated solar screen for an office environment in a humid tropical climate. In the methodology, the modeling was performed with Rhinoceros3D + Grasshopper applications and computer simulations using the DIVA-for-Rhino plug-in. Three models of perforated solar screen for the West orientation were evaluated. For the evaluations, the same percentage of opening area on the facade was maintained, but the following parameters were varied: thickness of the perforated solar screen, insolation angles (α and β), quantity and dimension of the holes of the evaluated models. In the thermal performance evaluations, we try to understand which of the perforated solar screens has the greatest capacity to reduce the admitted solar radiation. As main results, it is observed that all the evaluated models contributed to the reduction of the admitted radiation. In addition, the perforated solar screen showed more efficient performance in the afternoon, that is, a higher percentage of reduction in the transmitted solar radiation. In addition, it is noted that among the parameters evaluated, the insolation angles are the ones that exert the most significant influence on thermal performance. The model with the lowest insolation angles showed the best performance for all periods evaluated, while the models with the same angles showed similar performance, despite the difference in the other parameters.