Effect of Atrium Size on Thermal Buoyancy-Driven Ventilation of High-Rise Residential Buildings: A CFD Study
This paper carried out a Computational Fluid Dynamics (CFD) study about the effect of atrium size on buoyancy-driven ventilation of high-rise residential buildings, based on the indoor zero-equation model. The numerical model is a ten-storey, 15m(W) X 15m(L)X 30m(H) residential building, with an atrium in centre. Each floor of the building was set to be a plane heat source to simulate the cooling load of the building. Effect of atrium size on buoyancy-driven ventilation of this ten-storey residential building was investigated with changes in the size of atrium. Six square atriums with different size were used to study the effect of size of atrium on buoyancy-driven ventilation of the building. Changes in indoor environment, vertical air temperature distribution in atrium, volume flow in atrium were also studied. The study indicated that the effect of atrium size on the buoyancy-driver ventilation of high-rise residential buildings was obvious. With the increase of size of atrium, the buoyancy-driven ventilation effect of high-rise residential buildings got better and better. But when the size of atrium reached to a certain range, the increase of atrium size could hardly improve the buoyancy-driven ventilation effect of high-rise residential buildings. The result also suggested that the size of atrium 3500mm～3500mm was enough for ten-storey residential building in order to keep comfortable indoor thermal environment. All of these conclusions provide theory foundation for the design of natural ventilation in high-rise residential atrium buildings.
CFD High-rise residential buildings Atrium Thermal buoyancy
Minhui Zhang Nianping Li Enxiang Zhang Sujuan Hou Dongyue He Jing Li
College of Civil Engineering,Hunan University,Changsha,China College of Civil Engineering,Hunan University,Changsha,China Electromechanical College,Beijing Union Electromechanical College,Beijing Union University,Beijing
国际会议
The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)
南京
英文
1240-1247
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）