| 四种双温蒸气压缩制冷循环的制冷性能比较 |
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| 引用本文： | 刘敬辉,陈江平,陈芝久.四种双温蒸气压缩制冷循环的制冷性能比较[J].应用科学学报,2006,24(5):538-542. |
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| 作者姓名： | 刘敬辉 陈江平 陈芝久 |
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| 作者单位： | 上海交通大学制冷与低温研究所, 上海 200030 |
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| 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.
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| 关 键 词： | 热力学 制冷性能 压缩/喷射混合制冷循环 |
| 文章编号： | 0255-8297（2006）05-0538-05 |
| 收稿时间： | 2005-08-25 |
| 修稿时间： | 2005-08-252005-11-18 |
COP Comparison of Refrigeration Cycles with Two-Stage Evaporating Temperatures |
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| LIU Jing-hui,CHEN Jiang-ping,CHEN Zhi-jiu.COP Comparison of Refrigeration Cycles with Two-Stage Evaporating Temperatures[J].Journal of Applied Sciences,2006,24(5):538-542. |
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| Authors: | LIU Jing-hui CHEN Jiang-ping CHEN Zhi-jiu |
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| Institution: | Refrigeration and Cryogenics Institute, Shanghai Jiaotong University, Shanghai 200030, China |
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| 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. |
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| Keywords: | thermodynamics compression/ejection refrigeration cycle COP |
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