INFLUÊNCIA DAS ESTRATÉGIAS BIOCLIMÁTICAS EM UMA ESCOLA POR ANÁLISE DE SENSIBILIDADE LOCAL

Abstract

The shortage of energy resources and its increasing demand give rise to the study of building performance. The norm in Brazil, which suggests constructive guidelines for the thermal performance of the building, according to the bioclimatic zone, is the NBR 15220. Among many public buildings, schools (the focus of this study) are those with the greatest social responsibility. Its performance is very important because the comfort conditions of the building affect student’s performance and learning. This work aims is to evaluate the most influential parameters in a school building in the city of Joinville, Santa Catarina state. For that, a case study was carried out at a school in the city of Joinville in a primary school of the city's municipal network. In the case was applied strategies and indexes recommended in NBR 15220 for the bioclimatic zone of the city. The school was simulated in several scenarios using the Energy Plus program, evaluating the internal temperature of the building in this study. The best results were evaluated by the local sensitivity analysis, leading to the influence of each parameter. These analysis results indicated that the nocturnal ventilation is one of the most important factors in comfort, causing an improvement in the indices, especially in the warmer periods. The internal walls with high thermal mass and the shading elements are not sensible parameters in the model. Absorption and the use of insulation material in the roof is one of the most important elements in the comfort of the building. It was concluded that the most influential parameters in the analyzed building were related to natural ventilation and the roof. The material and solar absorptivity of the roof were very sensitive parameters in the model.