干热气候区空调设计工况参数探讨
Discussion on design parameters of nominal working condition in dry-hot climatic zone
摘要：
以乌鲁木齐、银川、兰州为例研究了我国西北干热气候区的气象参数特点。对乌鲁木齐公共建筑夏季的湿负荷进行了计算并分析了其特点，发现采用不同的室外计算工况将导致不同的空气处理方式，不适应当地气候特点的设计工况将导致不合适的技术方案。分析了水冷冷水机组的冷水、冷却水温度和空气处理设备水侧、空气侧参数对空调系统的影响。提出了适应于干热气候区的室外空气计算参数，以及水冷冷水机组、空调机组和风机盘管的名义工况建议。
Abstract：
Taking Urumqi, Yinchuan and Lanzhou as examples, researches the characteristics of meteorological parameters in the dry-hot climatic zone of northwestern China. Calculates the summer humidity load of public buildings in Urumqi and analyses its characteristics. Finds that using different outdoor air design parameters will lead to different air handling modes and adopting the design parameter without considering the local climatic characteristics will lead to inappropriate technical solution. Analyses the influences of the chilled water and cooling water temperatures of water-cooled chillers and the water side and air side parameters of air handling equipment on air conditioning systems. Suggests the outdoor air design parameters suited for the dry-hot climatic zone and the nominal conditions for water-cooled chillers, air handling units and fan-coil units.
Keywords:dry-hot climatic zone, water-cooled chiller, air handling unit (AHU), fan-coil unit (FCU), nominal condition