Engineering design status of the KSTAR TF coil structure

Author

Ahn, H.J. ; Lee, Y.W. ; Kwon, T.H. ; Lee, S.C. ; Choi, C.H. ; Oh, Y.K. ; Lee, D.K. ; Lee, J.S. ; Kim, D.S. ; Hong, C.D.

Author_Institution

Maritime Res. Inst., Hyundai Heavy Industries Co. Ltd, Ulsan, South Korea

Volume

12

Issue

1

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

492

Lastpage

495

Abstract

The toroidal field (TF) magnet system of Korea Superconducting Tokamak Advanced Research (KSTAR) device consists of 16 superconducting coils enclosed in steel cases. The TF cases are wedged along the inboard straight legs to sustain in-plane centering forces. The inter-coil structures contain adjustable shear keys and conical bolts to provide pre-loading in toroidal direction and to resist in-plane and out-of-plane forces, which are the most critical loads on the TF magnet system. For effective cooling of the TF case, a pad-type cooling channel has been designed to ensure structural and thermal stability. In order to investigate the structural integrity and to increase the structural reliability of the KSTAR magnet system, structural analyses have been conducted. From the analysis results, it has been found that the TF magnet structure can safely withstand the reference scenario operations.

Keywords

Tokamak devices; finite element analysis; fusion reactor design; superconducting magnets; KSTAR TF coil structure; Korea Superconducting Tokamak Advanced Research device; adjustable shear keys; conical bolts; finite element analysis; inter-coil structures; pad-type cooling channel; structural reliability; superconducting coils; superconducting magnet; toroidal field magnet system; Cooling; Design engineering; Leg; Magnetic analysis; Magnetic devices; Steel; Superconducting coils; Superconducting magnets; Tokamaks; Toroidal magnetic fields;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2002.1018450

Filename

1018450