多种不可逆性对磁埃里克森制冷循环性能的影响  

The Influences of Multi-irreversibilities on the Performance of Magnetic Ericsson Refrigeration Cycle

作　　者：夏峥嵘[1] 叶兴梅[1] 林国星[1] 

机构地区：[1]厦门大学物理系,厦门361005

出　　处：《制冷》2005年第3期1-5,共5页Refrigeration

基　　金：福建省自然科学基金项目(E0410004)

摘　　要：建立以顺磁盐为工质的不可逆埃里克森制冷循环新模型,探讨热阻、热漏、回热损失及工质内部不可逆性等对循环性能的影响,分析和讨论制冷循环的重要性能参数及优化工作区域,所得结论比现有文献的相关结论更普遍,可为磁制冷机的优化设计和性能评价提供新理论参考。The new model of an irreversible Ericsson refrigeration cycle employing paramagnetic salt as cyclic working substance is established, in which the influence of finite - rate heat transfer, heat leak, regenerative losses and irreversibility inside cyclic working substance on the cyclic performance are explored.The important performance parameters and optimal operating region of the refrigeration cycle are analyzed and discussed. The results obtained here are more general than the related conclusions presented in the literatures and can provide some new theoretical information for the optimal design and performance evaluation of magnetic refrigerators.

关 键 词：顺磁盐 制冷循环 不可逆性 优化 

分 类 号：O414[理学—理论物理] TK123[理学—物理]