Comparative analysis of solar thermal loads in glazed façade for energy efficiency studies
DOI:
https://doi.org/10.6008/CBPC2179-6858.2022.005.0007Keywords:
Energy efficiency, Solar thermal load, Simulation in buildingAbstract
The current energy crises make researches related to Energy Efficiency (EE) increasingly under discussion. In this context, and with the purpose of enabling design decisions to be taken to improve the EE of a Building (EEE), the objective of this paper was to analyze the thermal behavior of a glazed building, in a city with a tropical climate. For the analysis, an environment with a glass fence was designed, with the floor and roof without changes in their dimensions or materials. Thus, simulations were carried out through a thermo-energy software, in simultaneous alternation of 4 building variables: 4 types of glass, 4 percentages of glazed opening, 5 solar orientations, and the use or not of blinds. The simulations resulted in technical information about the thermal load generated in the environment, enabling design decisions that improve the EEE. The analysis of the results confirmed the EE of Laminated (LA), Pyrolytic (PI) and Vacuum (VC) glasses in relation to Tempered (VT) glass. In the use of the other analyzed glasses, the PI and the VC, despite having higher market values than the LA, do not present a significant decrease in the thermal load in relation to the VT.
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