本文描述了地板送风置换式空调系统与侧壁安装式扩散器置换式通风系统和基于天花板的分配系统性能对比的实验室测量结果。观察到热分层，因为两种置换系统中的垂直空气温度差都大于天花板系统中的垂直空气温度差。地板送风置换式空调系统在每个测量高度处产生均匀的低风速，而对于带侧壁的置换式通风系统，在地板附近观察到相当高的风速- 安装扩散器。地板送风置换空调系统的局部平均空气龄低于其他系统，尤其是房间下部。根据模拟结果，地板送风置换式新风空调系统比传统新风空调系统能耗低34%。单元:双引文:研讨会，ASHRAE交易，第105卷，第。1999年2月2日，西雅图

The results of laboratory measurements on the perfor-mance of a floor-supply displacement air-conditioning system in comparison to a displacement ventilation system with a side-wall- mounted diffuser and a ceiling-based distribution system are described. Thermal stratification was observed, as there were greater vertical air temperature differences in both of the displacement systems than in the ceiling-based system. The floor-supply displacement air-conditioning system produced a uniformly low air velocity at each measurement height, while a rather high air velocity near the floor was observed for the displacement ventilation system with a sidewall-mounted diffuser. Local mean age of air of the floor-supply displacement air-conditioning system was lower than that of the other systems, especially in the lower part of the room. According to the simulation results, the floor-supply displacement air-conditioning system with outdoor air cooling requires 34% less energy than the conventional air-conditioning system with outdoor air cooling.Units: Dual