Desempenho térmico de uma edificação pública com sistema fotovoltaico

Abstract

With the growing interest in seeking sustainable solutions, the use of solar energy has become an increasingly viable option. In this context, the use of photovoltaic panels in buildings can be an interesting alternative to reduce the demand for electricity from non-renewable sources and at the same time promote a reduction in thermal load in the building. This study evaluated the influence of using photovoltaic panels on a public building in São Carlos-SP through simulation using the Energy Plus program. The panels were modeled as shading surfaces and the percentage of hours in comfort (POC) and degree hours of discomfort due to heat (Ghc) were analyzed in a building with and without a photovoltaic system. In all the analyzed environments, there was an increase in thermal comfort, especially in the environments on the first floor, where there was a 2.5% increase in POC and a reduction of up to 101.1 oC.h in Ghc. In the ground floor environments, the influence of the panels was lower. It was concluded that the use of photovoltaic solar panels brought significant benefits to the thermal performance of the building. However, it is advised that additional research be conducted taking into account other parameters in the analysis, such as internal thermal loads, thermophysical properties of the roof, area occupied by the panels, and other national climates.