摘要
针对一种新型的复叠式热泵热水器系统,以常规工质对其在各不同运行工况下的循环特性进行了理论计算,并结合其经济性、可靠性及当前市场实际情况,对这些工质进行筛选并确定合适的设计工况。结果表明:对于该系统的低温级循环比较合适的工质为R410A,而对于该系统的高温级循环则以R134a最为实际。
This paper introduces a cascade heat pump water heater system, and makes theoretical calculation of cycle characteristics on different working conditions used conventional refrigerants, aiming to choose the right refrigerant and to determine the suitable design condition based on the calculation ,reliability and reality. The results show that R410a is optional for the cryogenic stage cycle , and R134a is more practical for the higher cycle for this system.
出处
《低温与特气》
CAS
2008年第3期5-8,共4页
Low Temperature and Specialty Gases
基金
广州市科技计划资助项目(2007Z2-D0231)
关键词
热泵热水器
复叠式循环
制冷剂
heat pump water heater
cascade cycle
refrigerant
