Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Heat balance analysis of an office building with fully glazed façade in tropical and temperate climates in Brazil

Mônica Martins Pinto, Fernando Simon Westphal
Federal University of Santa Catarina, Brazil

Abstract: Even though insulating glass units (IGU) are widely used in Europe and North America, previous studies show that its use can increase the HVAC energy consumption in office buildings instead of improving thermal performance. This study aims to investigate the effect of IGU use in thermal behaviour of buildings in the Brazilian climate context. Heat balance analysis of an open-plan office floor was conducted, mainly focusing on heat flux through windows. The data were obtained by computer simulation in EnergyPlus. IGU use is compared with a non-insulated system. Results show that the IGU use avoids a beneficial heat dissipation throughout the window during the night, mainly in the southern region. Even in hot climates, non-insulated glass presents the potential to dissipate the thermal load during occupation time yet.
Keywords: Window, Energyplus, Thermal Performance, Insulated Glass Unit
Pages: 2515 - 2522