Paper Conference

Proceedings of SimBuild Conference 2010: 4th conference of IBPSA-USA


Beyond arrows: CFD modeling of a new configuration of naturally ventilated double-skin facade in a high rise office building

Mona Azarbayjani, Jim Anderson

Abstract: There is a great deal of interest in using double skin facade (DSF) strategies in new and retrofitted buildings, as they provide many possibilities for energy conservation, and at the same time create better thermal comfort. For hundreds of years, architects have tended to rely on intuitive guesses to design naturally ventilated buildings without detailed analyses. The lack of numerical airflow information that demonstrates the complexity and challenges in the domain of designing large naturally ventilated buildings is addressed in the literature reviews. In this paper, the energy performance of a high-rise office building equipped with conventional insulated glazing will be calculated by EnergyPlus and compared to a new DSF configuration. The DSF solution is innovative because it combines two common typologies: shaft and corridor type. In this research, CFD software (computational fluid dynamics) Fluent was used to evaluate various thermal comfort parameters for the new configurations. It helped to determine the possibility of improved indoor thermal comfort in a humid climate through natural ventilation strategies for a high-rise office building. The results proved that the new configuration had a major impact on enhancing natural ventilation and as a result, a reduction in energy usage.
Pages: 170 - 176