Paper Conference

Proceedings of eSim 2022: 12th Conference of IBPSA-Canada


CFD simulations and experiments for fire smoke and ventilative cooling performance in a high-rise atrium

Haohan Sha, Xin Zhang, Dahai Qi
Université de Sherbrooke, Canada

Abstract: For high-rise atriums, natural ventilation (NV) is a promising technique to reduce the ventilation and cooling energy consumption. However, the fire safety issue on the NV application in atria is a challenge. When fire occurs, the smoke can spread far away from the source in the large vertical space of atriums and threaten the occupants. To address this challenge and promote the NV application in atriums, a novel design based a ventilation shaft and segmentation is proposed. This study aims to evaluate the performance of this novel design on smoke control and NV. Numerical simulations and experiments on a 1:20 small-scale model were conducted. It shows that the novel design can improve the smoke control performance and can achieve better performance on ventilative cooling than the traditional design (e.g., close or higher heat removed by ventilation).
Keywords: CFD simulation, ventilative cooling, fire smoke control, high-rise buildings