Optimal Temperature -Entropy Curves for Magnetic Refrigeration
Magnetic refrigeration utilizes the temperature dependent entropy change produced in a ferromagnetic or paramagnetic material when subjected to a change in magnetic field. By blending different materials together the temperature-entropy (T-S) behavior of the refrigerant may be tailored to maximize system performance. Optimal T-S diagrams for magnetic refrigerators using Carnot, Ericsson and Brayton cycles were determined and compared to results of thermodynamic numerical models.
KeywordsHeat Transfer Fluid Refrigeration Cycle Magnetic Refrigerant Heat Rejection Gadolinium Gallium Garnet
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