Title :
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
fDate :
5/1/1993 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
