应用科学学报 ›› 1998, Vol. 16 ›› Issue (4): 463-468.

• 论文 • 上一篇    下一篇

考虑传热效应的回热式空气热泵循环性能分析

陈林根, 倪宁, 刘九七, 孙丰瑞, 龚建政   

  1. 海军工程学院
  • 收稿日期:1997-01-02 修回日期:1997-04-17 出版日期:1998-12-31 发布日期:1998-12-31
  • 作者简介:陈林根:教授,海军工程学院动力工程系,武汉 430033

Performance Analysis for a Regenerated Air Heat Pump Cycle with the Consideration of Heat Transfer Effect

CHEN LINGEN, NI NING, LIU JIUQI, SUN FENGRUI, GONG JIANZHENG   

  1. Faculty 306, Naval Academy of Engineering, Wuhan 430033
  • Received:1997-01-02 Revised:1997-04-17 Online:1998-12-31 Published:1998-12-31

摘要: 用有限时间热力学方法分析实际热泵循环性能,计入工质与高、低温热源间换热器和回热器的热阻损失及压缩机、膨胀机中的不可逆损失,导出了变温热源不可逆闭式回热式空气热泵的供热率和供热系数与循环压比间的解析式,并给出了详细的数值算例.

关键词: 布雷顿热泵循环, 有限时间热力学, 回热循环, 最优化

Abstract: Performance analysis of a real heat pump is carried out using the methods of finite time thermodynamics. Accounting to the irreversibilities of heat resistances in the hotand cold-side heat exchangers and the regenerator and the irreversible compression and expansion losses in the compressor and expander, this paper derives the analyticalrelation between heating load, COP and the pressure ratio for an irreversible closed regenerated air heat pump coupled to variabl temperature heat reservoirs. Detailed numerical examples are given also.

Key words: finit time thermodynamics, regenerated cycle, optimization, Brayton heat pumpcycle