置换通风空调系统的研究

Study on Air-conditioning System of Displacement Ventilation

分析比较了传统空调系统与近年来在欧洲出现并得到推广应用的置换通风空调系统的工作原理、特点及经济性。并采用k－ε双方程模型和SIMPLE算法，对互换通风空调系统室内二维气流的速度场、温度场和浓度场进行模拟，将模拟结果进行图形化处理显示，以进一步揭示置换通风空调系统室内的流动特性和温度分布规律，进而指出置换通风与冷却顶板结合的空调系统在提高人体热舒适性、改善室内空气品质、节能等方面具有很大的优越性。

In this paper,traditional air-conditioning system and air -conditioning system of displacement ventilation, which turns up lately in Europe, are analysed and compared on the working principle,special feature and econondc results. The mobile characteriotic and regular of temperature distribntion in the room with air-conditioning system of disp lacement ventilation ore revealled. It points out that this system has great superionity of raising comfort to heat. improving air quality indoor and econondzing energe resources by combinimg of displacement ventilation and cooting head plate.