In this paper,a water-cooled central air conditioning system of a building in Guangzhou is taken for an example to establish the simulation models of one of the building's layers and its central air conditioning systems, on the basis of a controlled and uncontrolled cases, the energy consumption is analyzed. The simulation results from the two models show that there is a great space of energy-saving of central air conditioning system. This model is mainly used to study some properties of the central air conditioning and is of great significance to energy-saving optimal control of central air conditioning.%以广州某大厦水冷型中央空调系统为例子,利用Trnsys建立了大厦某层的多区域建筑及其中央空调系统能耗仿真模型,在此基础上分析加控制和不加控制2种情况下中央空调能耗情况.由2种模型的仿真结果可知中央空调具有很大的节能空间.模型主要用于研究中央空调运行的一些性质,对中央空调的节能优化控制具有重要的意义.
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