| 二级不可逆磁Brayton制冷循环性能分析及参数优化 |
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| 引用本文： | 张秀钦,林国星,陈金灿. 二级不可逆磁Brayton制冷循环性能分析及参数优化[J]. 工程热物理学报, 2009, 30(10) |
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| 作者姓名： | 张秀钦 林国星 陈金灿 |
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| 作者单位： | 厦门大学物理系理论物理与天体物理研究所,福建厦门,361005 |
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| 摘 要： | 建立受有限速率热传导和绝热过程不可逆性影响的二级磁Brayton制冷循环模型,导出循环的性能系数和制冷率表达式,分析等磁场过程的磁场比、绝热不可逆因子、等磁中冷过程等对二级不可逆磁Brayton制冷循环最大制冷率及相关参数的影响,所得结论能为提高磁制冷机的循环性能提供参数设计参考.
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| 关 键 词： | 磁制冷 布雷顿循环 不可逆性 中冷 优化 |
PERFORMANCE ANALYSIS AND PARAMETRIC OPTIMIZATION OF A TWO-STAGE IRREVERSIBLE MAGNETIC BRAYTON REFRIGERATION CYCLE |
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| ZHANG Xiu-Qin,LIN Guo-Xing,CHEN Jin-Can. PERFORMANCE ANALYSIS AND PARAMETRIC OPTIMIZATION OF A TWO-STAGE IRREVERSIBLE MAGNETIC BRAYTON REFRIGERATION CYCLE[J]. Journal of Engineering Thermophysics, 2009, 30(10) |
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| Authors: | ZHANG Xiu-Qin LIN Guo-Xing CHEN Jin-Can |
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| Affiliation: | ZHANG Xiu-Qin LIN Guo-Xing CHEN Jin-Can (Department of Physics and Institute of Theoretical Physics and Astrophysics,Xiamen University,Xiamen 361005,China) |
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| Abstract: | A two-stage magnetic Brayton refrigeration cycle model affected by finite-rate heat transfer and irreversibility in the adiabatic processes is established.The analytical expressions of the coefficient of performance and cooling rate for the refrigeration cycle are derived.The influences of the ratio of the magnetic field intensities in the iso-magnetic field processes,irreversible adiabatic factors, and iso-magnetic field inter-cooling process on the maximum cooling rate and the corresponding performance pa... |
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| Keywords: | magnetic refrigeration Brayton cycle irreversibility inter-cooling optimization |
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