水环热泵辅助热源容量在部分负荷率下的试验研究  

Experimental research on auxiliary heat source capacity of water loop heat pump under part-load ratio

作　　者：常茹[1] 于齐东[1] 

机构地区：[1]天津城市建设学院

出　　处：《制冷与空调》2011年第6期66-70,共5页Refrigeration and Air-Conditioning

基　　金：住房和城乡建设部研究开发项目(2011-K1-46)

摘　　要：针对水环热泵空调系统辅助热源容量选取问题,在部分负荷率对水环热泵系统能耗影响分析的基础上,选取天津地区具体工程实例,分别对辅助热源容量为35 kW,38.5 kW和42 kW三种方案进行100%,80%,60%,40%和20%五档部分负荷率的工程进行测试,并采用部分负荷率无因次能耗分析方法对空调主设备、辅助热源以及系统能耗进行分析。分析结果表明:水环热泵空调系统能耗随部分负荷率变化具有非线性的变化特征,其畸变工况点出现在80%～100%负荷段;针对此建筑,辅助热源容量按建筑热负荷55%(即38.5 kW)选取是最佳方案。Aiming at existing selection problems of auxiliary heat source capacity of water loop heat pump,takes single building in Tianjin as research object and analyzes part-load ratio effect on energy consumption of water loop heat pump.Then tests auxiliary heat source capacity（35 kW,38.5 kW and 42 kW） effect on water loop heat pump,respectively 100%,80%,60%,40% and 20%.Analyzes energy consumption of the key equipments,auxiliary power and system by dimensionless energy consumption analysis method under part-load ratio.The results show that energy consumption of water loop heat pump has nonlinear relationship with part-load ratio,and distortion operating point of water loop heat pump is in 80%~100% range.So,auxiliary heat source capacity is selected according to 55% of building load（38.5 kW）,that is the best scheme.

关 键 词：水环热泵 辅助热源 部分负荷率 无因次能耗曲线 畸变工况点 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]