Avaliação do desempenho luminotécnico em ambientes educacionais com foco na eficiência energética: estudo de caso do auditório do Centro de Tecnologia da UFPB

Abstract

The distribution of light in an environment is essential for the comfort and productivity of its occupants, being crucial for the proper performance of activities. However, lighting design is still underexplored in indoor spaces, and the influence of natural aspects, such as lighting and ventilation, is often not considered, especially in facilities related to public educational institutions. As a result, there is excessive use of artificial lighting and air conditioning systems, often implemented without a rationale that promotes energy efficiency or environmental comfort. This study aims to characterize the analyzed building and evaluate its lighting performance, using both data collection and computer simulations. The results are correlated with energy efficiency criteria, and strategies are proposed to better harness available natural resources, aiming to reduce energy consumption and maximize lighting efficiency and visual comfort. To this end, the OriginPro software was used for plotting the collected data and generating lighting maps, which were validated in DIALux evo, in accordance with Brazilian lighting standards for indoor environments. The study was conducted in the auditorium of the Technology Center at the Federal University of Paraíba (UFPB), chosen for its representative conditions for research purposes. With the characterization of the site and the climatic and geographic evaluation, it was possible to understand the solar incidence on the building. Based on the analysis of natural lighting availability, specific solstice and equinox days were selected for on-site illuminance measurements. Lighting maps were plotted in the Origin software using the collected data and were subsequently validated through simulations in DIALux. Upon evaluating the scenarios, flaws were identified in the auditorium’s lighting design, with insufficient illuminance levels in certain areas. A comprehensive assessment of various scenarios revealed a significant reduction (70%) in energy consumption and, consequently, a decrease in environmental impact. This analysis supports the future implementation of lighting and energy efficiency strategies in educational environments, contributing to improved environmental performance and user comfort.