실내환경을 위한 자연형 환기시스템에 관한 연구

The authors carried out a numerical study on the effectiveness of passive ventilation system, which is equipped with heating air collector functioning by stack effect. To solve the governing equations, we used a finite volume method and SIMPLE algorithms. In asymmetrically heating vertical channel flow, the flow and temperature fields will be analysed according to the variations of radiation and channel width by computational fluid dynamics(CFD). The results of this theoretical analysis indicates that the passive ventilation system in winter mode could provide profitable conditions for building energy conservation and improvement of environmental performance.