INVESTIGATING THE EFFECTS OF CLIMATE DATA TYPOLOGY ON THE RESULTING BIOCLIMATIC STRATEGIES

Abstract

The recent study aims to investigate the bioclimatic potential of three Brazilian cities: Florianópolis-SC, Curitiba-PR and São Paulo-SP, using the BcChart tool. Hence, the bioclimatic potential is determined using Olgyay’s charts to define appropriate passive building design strategies. The study compares the results obtained by two different climate file types: TMY and TRY. The results show that the climatic behavior between the different files is similar, with average differences in average temperatures around 1.0°C in Florianópolis and São Paulo. However, in Curitiba, these differences reach 4.0°C in October and December. Concerning the bioclimatic potential, the natural ventilation duration in the warmer months is longer when using the TMY and shorter when applying the TRY file. Using different climate files resulted in higher differences between the needed shading, demonstrating that the TMY includes higher temperatures than the TRY. In particular, in São Paulo, the shading should be used for differently long periods, namely 56.10% when using the TMY and 42.20% when the TRY. It was confirmed that BcChart could be used for bioclimatic potential in Brazilian temperate climates. However, applying different climate file types may result in different bioclimatic potential, especially on the monthly level. The results suggest that climate file types must be chosen thoughtfully in order to analyze thermal performance and design climate-adapted buildings precisely.