空气-土壤源柔性热泵系统在寒冷地区小型建筑中的能耗分析  

Analysis of Energy Consumption of Air-Ground Source Flexible Heat Pump System in Small Buildings in Cold Regions

作　　者：杨子旭 吕伟华 冉思源 石文星[1] YANG Zi-xu;LV Wei-hua;RAN Si-yuan;SHI Wen-xing(Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学,北京100084

出　　处：《流体机械》2018年第9期75-79,共5页Fluid Machinery

基　　金：国家重点研发计划项目资助项目(2016YFC0700304)

摘　　要：土壤源和空气源热泵系统在我国寒冷地区的应用都存在一定的局限性,而空气-土壤源柔性热泵系统则可通过不同品位能源的合理搭配,实现优势互补。以寒冷地区北京密云的一栋小型单体住宅建筑为对象,设计了空气-土壤源柔性热泵系统,并以TRNSYS为平台搭建系统模型,分析制定运行策略,并研究其长期运行的能耗。结果表明,与土壤源热泵系统相比,柔性热泵系统能够保障土壤热平衡且具有良好的节能效果。系统在第5年的全年运行综合性能系数APF约为3.2,高于土壤源热泵13.4%,年耗电量减少16.3%。单位供暖/空调面积的耗电量为22.4 kW·h/(m2·a)。There are some limitations when the traditional air source heat pump and ground source heat pump system are used in the cold regions of our country.However,the air-ground source flexible heat pump system can achieve complementary advantages through reasonable matching of different grades of energy source.In this paper,an air-ground source flexible heat pump system was designed for a small single residential building located in Miyun,Beijing(cold region),and a system model was set up based on TRNSYS as the platform to analyze and formulate its operation strategy,and research energy consumption over its long-term operation.The results show that compared with the traditional ground source heat pump,this system can significantly improve the thermal balance of the ground and has a good energy conservation effect.In the fifth year,the annual performance factor APF of the system was about 3.2,13.4%higher than that of the ground source heat pump,and the annual electricity consumption was saved by 16.3%.The electricity consumption of the system per heated/air conditioned area was about 22.4 kW·h/(m2·a).

关 键 词：柔性热泵系统 空气换热器 土壤换热器 寒冷地区 性能 

分 类 号：TH3[机械工程—机械制造及自动化]