Carnot cycle for magnetic materials : The role of hysteresis

The role of hysteresis in a refrigeration thermodynamic cycle involving ferromagnetic materials is discussed. A model allowing to calculate magnetization, entropy and entropy production in systems with hysteresis is used to compute a non-ideal Carnot cycle performed on a ferromagnetic material.

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Bibliographische Detailangaben
Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2006-02, Vol.372 (1-2), p.9-12
Hauptverfasser:	SASSO, Carlo P, BASSO, Vittorio, LOBUE, Martino, BERTOTTI, Giorgio
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Energy Energy. Thermal use of fuels Exact sciences and technology Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Magnetocaloric effect, magnetic cooling Physics Refrigerating engineering Refrigerating engineering. Cryogenics. Food conservation Techniques. Materials
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Beschreibung
Zusammenfassung:	The role of hysteresis in a refrigeration thermodynamic cycle involving ferromagnetic materials is discussed. A model allowing to calculate magnetization, entropy and entropy production in systems with hysteresis is used to compute a non-ideal Carnot cycle performed on a ferromagnetic material.
ISSN:	0921-4526 1873-2135
DOI:	10.1016/j.physb.2005.10.007