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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。
Taking Urumqi, Yinchuan and Lanzhou as an example, the meteorological parameters of dry and hot climatic zones in northwestern China were studied. The wet load of summer public buildings in Urumqi is calculated and analyzed. It is found that using different outdoor calculation conditions will result in different air treatment methods and design conditions that are not suitable for local climate will lead to inappropriate technical solutions. The influence of cold water, cooling water temperature and air-side and air-side parameters of air-cooled chiller on air-conditioning system was analyzed. The calculation parameters of outdoor air adapting to the hot and dry climatic zone are proposed, and the nominal operating conditions of water-cooled chiller, air conditioning unit and fan coil are proposed.