直膨式跨临界CO_2热泵地板辐射采暖的可行性分析  

Analysis on the Feasibility of Direct-expansion Transcritical CO_2 Heat Pump Applied in Floor Radiant Heating

作　　者：谢英柏[1] 单金玲[1] 孙学杰[1] 朱海涛[1] 

机构地区：[1]华北电力大学,河北保定071003

出　　处：《应用能源技术》2013年第12期39-44,共6页Applied Energy Technology

摘　　要：文中介绍了直膨式跨临界CO2热泵的工作原理,通过分析CO2制冷剂的换热特性、对比不同工况下CO2与传统工质热泵的性能来验证直膨式跨临界CO2热泵用于地板辐射采暖的可行性,并对不同负荷下的供热调节方式进行了计算分析。结果表明:直膨式跨临界CO2热泵地板辐射采暖在系统COPh、运行稳定性、经济性等方面都优于传统工质热泵,并且适宜用于室外温度较低的地区冬季采暖。Introduced the working principle of direct- expansion transcritical CO2 heat pump, through analyzing the heat transfer characteristics of CO2, comparing the performance of heat pump with CO2 and the traditional working medium under different working conditions, to verify the feasibility of direct - expansion transcritical CO2 heat pump used for floor radiant heating, and the analyzing the heating regulation modes under different load. The results show that the direct- expansion transcritical CO2 heat pump floor radiant heating performs better than traditional working medium heat pump in the system COPh, operating stability, economy, and be suitable for cold area.

关 键 词：直膨式 跨临界CO2热泵 地板辐射采暖 可行性 

分 类 号：TU832.21[建筑科学—供热、供燃气、通风及空调工程]