Ecological optimization for an irreversible magnetic Ericsson refrigeration cycle

An irreversible Ericsson refrigeration cycle model is established, in which multi-irreversibilities such as finite-rate heat transfer, regenerative loss, heat leakage, and the efficiency of the regenerator are taken into account. Expressions for several important performance parameters, such as the...

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Bibliographic Details
Published in:Chinese physics B 2013-08, Vol.22 (8), p.612-619
Main Author: 汪浩 吴国兴
Format: Article
Language:English
Subjects:
Cooling rate
Ecological monitoring
Ecology
Leakage
Mathematical models
Optimization
Refrigeration
Refrigerators
Regenerative
不可逆性
冷冻循环
冷却速率
制冷循环
爱立信
生态优化
生态功能
逆转
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Summary:An irreversible Ericsson refrigeration cycle model is established, in which multi-irreversibilities such as finite-rate heat transfer, regenerative loss, heat leakage, and the efficiency of the regenerator are taken into account. Expressions for several important performance parameters, such as the cooling rate, coefficient of performance （COP）, power input, exergy output rate, entropy generation rate, and ecological function are derived. The influences of the heat leakage and the time of the regenerative processes on the ecological performance of the refrigerator are analyzed. The optimal regions of the ecological function, cooling rate, and COP are determined and evaluated. Furthermore, some important parameter relations of the refrigerator are revealed and discussed in detail. The results obtained here have general significance and will be helpful in gaining a deep understanding of the magnetic Ericsson refrigeration cycle.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/22/8/087501