Power losses and magnetic forces analysis in large dipole magnets cryostat

Author

Manella, A. ; Molfino, P. ; Sabbi, G.L. ; Repetto, M.

Author_Institution

Dipartimento di Ingegneria Elettrica, Genoa Univ., Italy

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2632

Lastpage

2635

Abstract

The magnetic analyses performed in the design process of the cryostat of a superconducting dipole magnet, with on axis magnetic flux density of 5 T and overall length about 4 m are presented. The high values of magnetic flux and stored energy require an accurate evaluation of the eddy currents induced on the cryostat structure during a discharge of the magnet. This evaluation is needed both to design the mechanical structure of the cryostat and to estimate the heating of the conducting parts. A comparative study of the structure, using different materials and evaluating time effects of electrical disconnections in the metallic parts, has been performed by means of a three dimensional finite element code. The efficiency of the different solutions is compared and discussed

Keywords

cryostats; eddy current losses; eddy currents; finite element analysis; superconducting magnets; 4 m; 5 T; cryostat structure; eddy currents; large dipole magnets cryostat; magnetic flux; magnetic forces; mechanical structure; power losses; stored energy; superconducting dipole magnet; three dimensional finite element code; Conducting materials; Eddy currents; Heating; Magnetic analysis; Magnetic flux; Magnetic flux density; Magnetic forces; Magnetic losses; Process design; Superconducting magnets;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305819

Filename

305819