Airflow characteristics by air curtain jets in full-scale room  

作　　者：尹海国 李安桂 

机构地区：[1]School of Environmental and Municipal Engineering,Xi'an University of Architecture and Technology

出　　处：《Journal of Central South University》2012年第3期675-681,共7页中南大学学报（英文版）

基　　金：Projects(50778145, 50278025) supported by the National Natural Science Foundation of China;Project(2009ZDKG-47) supported by "13115" Science and Technology Innovation Program of Shaanxi Province, China

摘　　要：A new air distribution pattern,air curtain jet ventilation was presented.The ventilation or airflow patterns and the air velocity produced by air curtain jet were investigated in detail.To identify the airflow characteristics of this novel air curtain jet ventilation system,a full-scale room was used to measure the jet velocity with a slot-ventilated supply device,with regards to the airflow fields along the vertical wall as well as on the horizontal floor zones.The airflow fields under three supply air velocities,1.0,1.5 and 2.0 m/s,were carried out in the full-scale room.The experimental results show the velocity profiles of air distribution,the airflow fields along the attached vertical wall and the air lake zones on the floor,respectively.The current experimental research is helpful for heating,ventilation and air conditioning(HVAC) engineers to design better air distribution in rooms.A new air distribution pattern, air curtain jet ventilation was presented. The ventilation or airflow patterns and the air velocity produced by air curtain jet were investigated in detail. To identify the airflow characteristics of this novel air curtain jet ventilation system, a full-scale room was used to measure the jet velocity with a slot-ventilated supply device, with regards to the airflow fields along the vertical wall as well as on the horizontal floor zones. The airflow fields under three supply air velocities, 1.0, 1.5 and 2.0 m/s, were carried out in the full-scale room. The experimental results show the velocity profiles of air distribution, the airflow fields along the attached vertical wall and the air lake zones on the floor, respectively. The current experimental research is helpful for heating, ventilation and air conditioning （HVAC） engineers to design better air distribution in rooms.

关 键 词：air distribution air curtain ventilation airflow fields 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]