In thermodynamics studies, the problem of the work done by magnetized materials is often approached with a general theorical approach. Sometimes, ambiguities can be found in the demonstrations, because some authors do not clearly specify the terms in the relations. Conversely, a definition of "heat of magnetization" is not given in a general complete way. Some engineers and physicists use practical relations to calculate power dissipated on superconducting materials during magnetization cycles, but it is not possible to find theoretical works that justify the validity of these relations in general situations, for example, as instantaneous losses. In this paper, we want to approach both these aspects with a more complete analysis.

Magnetization heat in superconductors and in Eddy current problems: a classical thermodynamic approach / M. Sorbi, V. Marinozzi. - In: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. - ISSN 1051-8223. - 26:6(2016 Sep), pp. 4901509.1-4901509.9.

Magnetization heat in superconductors and in Eddy current problems: a classical thermodynamic approach

M. Sorbi
;
V. Marinozzi
Ultimo
2016

Abstract

In thermodynamics studies, the problem of the work done by magnetized materials is often approached with a general theorical approach. Sometimes, ambiguities can be found in the demonstrations, because some authors do not clearly specify the terms in the relations. Conversely, a definition of "heat of magnetization" is not given in a general complete way. Some engineers and physicists use practical relations to calculate power dissipated on superconducting materials during magnetization cycles, but it is not possible to find theoretical works that justify the validity of these relations in general situations, for example, as instantaneous losses. In this paper, we want to approach both these aspects with a more complete analysis.
Heat exchange for magnetizing process; losses for eddy currents; losses in superconductors
Settore FIS/01 - Fisica Sperimentale
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
set-2016
25-mar-2016
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/386661
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