摘要
目前,地源热泵系统应用越来越广泛,但地源热泵机组选型以及与地下换热器的匹配性研究还比较少。实际工程中,通常根据热响应测试结果选择机组,但是系统经过长期的运行,土壤温度、地埋管进出口水温都会发生变化,使得实际的运行参数与机组设计参数不匹配,进而影响机组的性能。通过计算机组的蒸发面积、冷凝面积,以及机组效率来分析对机组的影响,并结合工程实例进一步说明。
At the moment,ground source heat pump（GSHP） systems are used more and more widely,but the research on the GSHP unit selection and adaptability to the underground heat exchanger is not enough.In practical projects,the GSHP units are selected according to the thermal response measurement results,but the soil temperature,the temperature of water in and out of the ground heat exchanger is changed with the system＇s long-time running so that the units＇design parameters could not meet the demand of actual operation and the unit perfor-mance degrades.The influence on the units＇performance is expounded by computing evaporator area,condenser area and COP with the engi-neering practice to further illustrate.
出处
《建筑节能》
CAS
2011年第8期25-29,共5页
BUILDING ENERGY EFFICIENCY
基金
"十二五"村镇建筑低品位能利用关键技术研究与工程示范(2011BAJ08B09)
北京市"供热
供燃气
通风及空调工程"重点实验室开放课题(KF200807)
铁路客站采暖空调技术综合利用及关键技术研究(2010G009-G)
关键词
地源热泵
蒸发面积
冷凝面积
ground source heat pump
evaporator area
condenser area
