居住建筑集中与分散空调能耗对比研究

Comparison and research about centralized and distributed air conditioning systems in residential buildings

以3个应用集中式空调系统的实际居住建筑工程为例,对集中式空调系统在居住建筑中的适用性进行分析和讨论,探讨实际居住建筑中造成集中式空调和分散式空调应用效果差异的关键因素,并说明各自的适用条件。研究表明在我国居住建筑中,用户侧的负荷具有需求不同步、负荷率低的特征,当应用集中式空调系统时,在用户末端或水系统的可调性受限的情况下,系统容易产生高能耗或低能效的问题。

Taking three real residential building projects with centralized air conditioning systems as examples,analyses and discusses the practicability of centralized air conditioning systems in residential buildings.Investigates key factors that lead to the differences between centralized and distributed air conditioning systems in residential buildings,and gives practicable conditions of the two kinds of systems respectively.The research result proves that,in residential buildings in China,because of the load features of non-synchronized demand and low load rate in user side,the problems of high energy consumption or low energy efficiency would happen when applying the centralized air conditioning system with limited regulating ability in user end or water system.