Abstract: Building energy simulation software-Energyplus was used to construct simulation model of an airport building and its air conditioning system in Hainan.Based on chiller system’s whole year operating data,the paper proposes a method of hierarchal cluster to categorize chiller’s operating condition by extracting operating parameters which have evident influence on chiller’s operation as the cluster parameters.It analyzes the relationship between chiller’s operation level and operating parameters,construct multivariate regression models in different clusters.By comparing every chiller’s COP in different cluster centers with the calculated COP of regression model,it illustrates that chiller’s operating property of a cluster center can be used as the representative of the cluster.It was found that hierarchal cluster can supply an effective and simple way to evaluate chiller’s operation level.

Key words: air conditioning chiller system, hierarchal cluster, operating property, COP

摘要： 利用建筑能耗仿真软件Energyplus 对海南某机场建筑及其空调系统建立了仿真模型。在得到空调冷水机组全年的运行数据的基础上,提出采用层次聚类的方法,提取影响机组运行特性的运行参数对机组全年运行工况进行分类,分析机组在不同类别下运行水平与相关运行参数的关联性并建立COP与运行参数的多元回归模型。通过比较不同类别下聚类中心每台机组COP与回归模型计算COP,发现聚类中心每台机组的运行特性可以代表该类中所有运行特性,为评价机组运行水平提供一个简化而有效的方法。

关键词: 空调冷水机组, 层次聚类, 运行水平, COP