Indicadores da iluminação artificial em ambientes residenciais

Abstract

The use of indicators to evaluate the performance of artificial lighting systems in the built environment has been discussed in several countries. Nevertheless, there are not many tools allowing for an integration of quantitative and qualitative aspects of energy efficiency during early stages of the design process. One way to evaluate the efficiency degree of lighting considers the use of Performance Indicator, based on the concept of Benchmarking as a reference value that might guide many design decisions. The aim of this thesis is to develop a set of procedures to evaluate the performance of artificial lighting in residential buildings, concerning the integration of quantitative and qualitative aspects of the lighting design. The evaluation compares results, obtained for a typical living room model, with those prescribed by international standards, focusing on the visual comfort and energy performance. The methodology consists of a comparative analysis of the integrated performance obtained in a typical living room model where different lighting configurations are tested. For that, parametric analyses were carried out, with support of computational simulations, aiming to examine the influence of the main lighting variables regarding the energy performance and visual comfort of these rooms. Results were grouped accordingly to the obtained performance and reveal the most important variables affecting visual comfort and energy efficiency. The proposed residential lighting performance indicators may contribute to the improvement of the national standards with reflexes on the professional activities of lighting designers.