Eddy current losses at cryogenic temperatures

Author

Sokolovsky, V. ; Meerovich, V. ; Slonim, M.

Author_Institution

Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel

Volume

29

Issue

3

fYear

1993

fDate

5/1/1993 12:00:00 AM

Firstpage

2095

Lastpage

2098

Abstract

The effect of thermal processes on eddy-current losses in the structural elements of cryogenic and superconducting devices are analyzed. Maxwell´s equations coupled with the heat-conduction equation are solved, taking into account the dependence of resistivity, heat capacity, and heat-transfer coefficient on temperature. Losses are analyzed as a function of magnetic field, frequency, and geometry for a thin strip in a uniform magnetic field. It is shown that losses calculated taking the thermal processes into account may differ from those obtained at constant temperature

Keywords

Maxwell equations; cryogenics; eddy current losses; heat conduction; superconducting devices; Maxwell´s equations; cryogenic devices; cryogenic temperatures; eddy-current losses; frequency; heat capacity; heat-conduction equation; heat-transfer coefficient; magnetic field; resistivity; superconducting devices; thermal process effect; thin strip geometry; uniform magnetic field; Conductivity; Cryogenics; Eddy currents; Frequency; Geometry; Magnetic analysis; Magnetic fields; Maxwell equations; Superconducting devices; Temperature dependence;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.211325

Filename

211325