上置置换通风-顶板辐射供冷室内热环境研究  

CFD Study on Indoor Thermal Environment of Room with Hybrid System of Chilled Beam and Chilled Ceiling Panel

作　　者：赵蕾[1] 刘庆荣[1] 张佩东[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院

出　　处：《建筑热能通风空调》2008年第4期62-65,共4页Building Energy & Environment

基　　金：陕西省教育厅专项科研计划项目(No.05JK252);中国教育部留学回国人员科研启动基金项目(教外司留[2007]1108)

摘　　要：利用计算流体力学(CFD)方法,对上置置换通风-顶板辐射供冷复合空调办公建筑室内采用不同气流组织方式的通风效果进行了模拟研究,分析比较了气流组织特性指标——温度不均匀系数kt、速度不均匀系数ku、空气分布特性指数ADPI及温度效率tη等,给出了送、排风口适宜的上置安装位置。并从舒适性、供冷情况、竖直温度梯度以及温度、速度场分布等方面与传统置换通风-顶板辐射供冷复合空调系统进行了比较,指明了这种新型空调模式可行性、优点及不足。CFD simulations were conducted to evaluate the ventilation effect of an office room with hybrid system of chilled ceiling panel and chilled beam under different air supply and return modules. The coefficient of temperature distribution unevenness, coefficient of velocity distribution unevenness, ADPI and temperature efficiency were compared for different modules. The proper locations for air inlet and outlet were given. In addition, these parame^rs were compared with those with hybrid system of traditional displacement ventilation system and chilled ceiling panel. The feasibility, advantages and disadvantages of this kind of new hybrid air conditioning module were illustrated.

关 键 词：上置置换通风 传统置换通风 气流组织特性指标 温度效率 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]