空调水系统运行参数关联准则研究

Study of the Associated Rules of Operation Parameters of an Air-Conditioning Water System

采用关联准则方法对中央空调水系统的运行参数进行了挖掘,得到了在不同室外空气温湿度与建筑冷量需求条件下,能够保证空调系统高效运行的系统运行参数。进一步在该空调系统模拟平台对关联准则的应用效果进行了模拟分析。模拟结果表明,在中等负荷日,采用关联准则中的运行参数(即优化模式)运行与既有模式运行对比,系统的运行效果与能效明显提升。优化后的水系统COP在大部分运行时间内比既有模式高1.5左右,与关联准则的目标值一致。采用关联准则对该系统进行优化运行,系统节能率为8.8%。关联准则可用空调系统进行优化控制,并有明显的节能效果。

This paper presents the data mining of the operation parameters of a central air-conditioning water system by using the associated rule method. The system operation parameters are obtained for ensure the efficient operation of the air-conditioning system under the conditions of different outdoor air temperature and humidity and building cooling demands. Furthermore, the application effect of the associated rule is simulated and analyzed on the air-conditioning system simulation platform. The results show that, for a medium load day, the operation effect and energy efficiency of the system are significantly improved when the performance by using the operation parameters in the associated rule(i.e., the optimal mode) is compared with that by using the existing mode. The water system COP by using the optimal mode is about 1.5 higher than that by using the existing mode during most of the operation period. This COP agrees with the target of the associated rule. The energy saving ratio of the system is 8.8%after the associated rule(i.e., optimal mode) is used. The associated rule can be used to optimize the system operation parameters of the air-conditioning system for practical control. It has obvious energy saving effect.