CO_2跨临界循环水源热泵变工况特性  

CHARACTERISTICS OF TRANSCRITICAL CO_2 CYCLE WATER SOURCE HEAT PUMP IN VARIABLE CONDITIONS

作　　者：马一太[1] 王景刚[1] 魏东[1] 查世彤[1] 王侃宏[1] 

机构地区：[1]天津大学热能研究所,天津300072

出　　处：《太阳能学报》2003年第2期157-161,共5页Acta Energiae Solaris Sinica

基　　金：高等学校博士学科点专项科研基金 (D0 2 0 0 10 5 ) ;国家自然科学基金资助项目 ( 5 98760 2 8)

摘　　要：对CO2 跨临界循环水源热泵的变工况运行特性进行了实验研究和理论分析 ,研究了外部热源条件和运行压力对系统性能的影响 ,根据实验数据拟合了CO2 压缩机的绝热效率公式 ,分析了气体冷却器和蒸发器的热交换完善程度以及对系统的运行动态特性的的影响 ,在实验研究的基础上 ,开展了CO2 跨临界循环水 -水热泵性能的理论分析 ,并探讨了运行调节的基本方法。The experiments and theoretical analysis have been worked out on the operation characteristics of transcritical CO2 cycle water source heat pump in variable conditions and on the influence of the dynamic system characteristics of the external heat source properties and operation pressures. The isentropic efficiency of the CO2 compressor, heat transfer effectiveness of gas cooler and evaporator and the influence on dynamic characteristics of the system have been obtained by fitting the experimental results. The properties of the CO2 transcritical water source heat pump have been analyzed base on the experimental data, and the system regulation methods have also been discussed.

关 键 词：水源热泵 变工况 002跨临界循环 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]