Análise energética e luminotécnica em quadra poliesportiva: proposta de modernização com led de alta eficiência na UFGD

Abstract

The quality of lighting in sports environments is essential to ensure safety, visual comfort, and adequate conditions of use. The multi-sports court of UFGD – Unit II recently underwent a modernization with the replacement of metallic vapor luminaires with LED luminaires, which motivated the need to evaluate the lighting performance of the new system. This work aimed to analyze the illuminance, uniformity and energy efficiency of the court's lighting system after the renovation, comparing measurements performed in the field with simulations in the DIALux software and verifying compliance with ABNT NBR ISO/CIE 8995-1:2013. The study included the physical survey of the environment, the execution of measurements with lux meters, the digital modeling of the lighting system, the proposal of adjustments in the positioning and quantity of the existing luminaires and the evaluation of an alternative modernization with luminaires of greater luminous efficiency. The results showed that, although the illuminance has increased in relation to the previous system, it still does not meet the norm. The simulations indicated that the repositioning and installation of three luminaires guarantee compliance with the standard, but with low luminous efficacy, and that a modernized alternative provides better performance with lower energy consumption. The economic analysis demonstrated the feasibility of the proposal, which presented, for retrofit, a payback of 6.21 years, an Internal Rate of Return (IRR) of 27.20% and a Net Present Value (NPV) of R$ 18,719.65. It is concluded that lighting interventions should be carried out using simulation as a design tool in order to provide an efficient system, ensuring visual performance and energy efficiency for sports areas.