西安咸阳国际机场T2和T3航站楼高大空间室内环境测试
Indoor environment test in large space of Terminal T2 and T3 at Xi’an Xianyang International Airport
摘要：
T2航站楼采用全空气空调系统，末端为喷口送风，T3航站楼采用辐射地板加置换通风，溶液调湿机组处理新风。详细介绍了2个航站楼冬夏季的室内环境测试情况。测试结果表明，夏季，采用喷口送风的室内温湿度在5 m高度以下区域基本一致，采用辐射地板加置换通风的室内温湿度在2 m高度以下温湿度数值较低，而2 m以上温湿度随着高度的增加而迅速增大；冬季，采用喷口送风时，距地面0.1～4 m范围内温差达到14～16 ℃，采用辐射地板供暖时，沿高度方向的空气温差在1.0 ℃以内。采用辐射地板供冷的操作温度较低，可以获得更好的室内环境舒适度，且能耗明显低于喷口送风空调系统。
Abstract：
Terminal T2 adopts all-air air conditioning system with nozzle outlets, while T3 adopts radiant floor with displacement ventilation and liquid desiccant outdoor air handling units. Presents the indoor environment tests in winter and summer for the two terminals in detail. The results show a basically identical temperature and humidity distribution in the space lower than 5 meters for nozzle outlets in summer, while for radiant floor with displacement ventilation temperature and humidity values are smaller in space lower than 2 meters, and temperature and humidity increase rapidly with the increase of height for the space higher than 2 meters. The results also show that the temperature difference is as large as a range of 14～16 ℃ in space 0.1meters higher and 4 meters lower above the floor for nozzle outlets in winter, while the temperature difference along vertical direction is smaller than 1.0 ℃ for radiant floor scheme. The operative temperature of radiant floor scheme is lower, the indoor environment is more comfortable, and the energy consumption is apparently less than nozzle outlet scheme.
Keywords:large space, temperature and humidity independent control, radiant floor, nozzle outlet, vertical distribution of temperature and humidity