The effect of thermal resistances and regenerative losses on the performance characteristics of a magnetic Ericsson refrigeration cycle

The effect of the irreversibilities due to thermal resistances and regenerative losses on the performance of a magnetic Ericsson refrigeration cycle is investigated, based on the Curie law and Newtonian heat-transfer law. Some fundamental optimum relations and general performance characteristics of the cycle are obtained. The maximum cooling rate and some important performance parameters are calculated. The optimal operating regions of the cycle are determined. The results obtained will be helpful for the optimal design and operation of real magnetic Ericsson refrigerators.