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应用科学学报 ›› 2006, Vol. 24 ›› Issue (5): 538-542.

• 论文 • 上一篇    下一篇

四种双温蒸气压缩制冷循环的制冷性能比较

刘敬辉, 陈江平, 陈芝久   

  1. 上海交通大学制冷与低温研究所, 上海 200030
  • 收稿日期:2005-08-25 修回日期:2005-11-18 出版日期:2006-09-30 发布日期:2006-09-30
  • 作者简介:刘敬辉,博士生,研究方向:制冷装置应用,E-mail:liujinghui@sjtu.edu.cn;陈江平,教授,博导,研究方向:汽车空调、制冷装置动态特性,E-mail:jpchen@sjtu.edu.cn;陈芝平,教授,博导,研究方向:汽车空调、制冷装置动态特性,E-mail:zjchen@sjtu.edu.cn

COP Comparison of Refrigeration Cycles with Two-Stage Evaporating Temperatures

LIU Jing-hui, CHEN Jiang-ping, CHEN Zhi-jiu   

  1. Refrigeration and Cryogenics Institute, Shanghai Jiaotong University, Shanghai 200030, China
  • Received:2005-08-25 Revised:2005-11-18 Online:2006-09-30 Published:2006-09-30

PDF

122

被引次数

8

摘要： 建立了对双温压缩/喷射混合蒸气压缩制冷循环进行理论分析的热力学模型,利用此模型对带有蒸发压力调节阀的双温蒸气压缩制冷循环和三种压缩/喷射混合的双温蒸气压缩制冷循环的理论制冷性能进行了比较.结果表明:利用压缩/喷射混合制冷循环可以回收膨胀阀和蒸发压力调节阀的节流损失,提高双温蒸气压缩制冷循环的制冷系数;高温蒸发器制冷量越大,双温压缩/喷射混合蒸气压缩制冷循环的制冷系数的提高幅度越大.

关键词: 热力学, 制冷性能, 压缩/喷射混合制冷循环

Abstract: This paper presents a mathematical model for theoretical analysis of refrigeration cycles with two -stage evaporating temperatures, and makes a COP comparison between conventional refrigeration cycle with evaporating pressure adjustment valve and 3 cycles with ejectors.The results show that compression/ejection refrigeration cycles can reduce energy loss and improve COP of refrigeration systems.The more the cooling capacity of the high temperature evaporator, the higher the COP can be improved.

Key words: thermodynamics, COP, compression/ejection refrigeration cycle

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