NUMERICAL STUDY OF A HYBRID VENTILATION SYSTEM FOR SINGLE OFFICE HOUSE
Hybrid ventilation combines the virtues of natural and mechanical ventilation. Based on the fluid dynamics and heat transfer theory, physical and mathematical models were set up to simulate an office with Fluent software. The indoor air distribution was simulated with the turbulence model equation and SIMPLE method, in order to analyze the velocity fields and the temperature fields of the room. This paper focuses on the optimal cooperation of mechanical ventilation and natural ventilation. Factors affect the temperature distribution in the room, such as site of the air inlet, inlet velocity and heat source are discussed. Inlet velocity improves the temperature distribution with high temperature efficiency, but temperature efficiency goes down when the inlet velocity is too high; air inlet site and indoor heat source also have a great effect on the temperature distribution. The researches provide guidance for energy saving design of indoor ventilation.
Hybrid ventilation Numerical simulation Temperature efficiency Air distribution
Shuhui Xu Juan Wang Maidun Ma
School of Environment and Energy Engineering, Beijing Institute of Civil Engineering and Architecture, Beijing 100044, China
国际会议
北京
英文
2007-09-07（万方平台首次上网日期，不代表论文的发表时间）