Nanocomposites have several advantages as a refrigerant for 100–300 K applications compared to the other common methods of assembling a magnetic refrigeration bed, such as a layered thermal bed, or mixing of different magnetic materials. This article discusses the thermodynamics and heat transfer analysis of an ideal and real active magnetic regenerative refrigeration cycle. An algorithm for the choice of optimum parameters is derived.

No abstract

A differential equation accommodation model, which we previously presented based upon the Preisach model, has been modified so that changing the accommodation constant, β, does not affect the major loop. This has the dual advantage that identification of the model parameters is easier and also ensures that an accommodating minor loop does not go outside the major loop. The modified model permits detailed comparison with experiment. There was a remarkable agreement between the model and previously published experimental data.

No abstract

No abstract