Conceptual Design of the CFETR Toroidal Field Superconducting Coils

Author

Zheng, J.X. ; Song, Y.T. ; Liu, X.F. ; Li, J.G. ; Wan, Y.X. ; Wan, B.N. ; Lei, M.Z. ; Zhu, C.X. ; Kang, R. ; Khan, S.U.

Author_Institution

Inst. of Plasma Phys., Hefei, China

Volume

25

Issue

2

fYear

2015

fDate

Apr-15

Firstpage

1

Lastpage

9

Abstract

The China Fusion Engineering Test Reactor (CFETR) superconducting tokamak is a national scientific research project of China with plasma major and minor radii of 5.7 and 1.6 m, respectively. The magnetic field in the center of plasma at a radius of R = 5.7 m is 5.0 T. The major objective of the project is to build a fusion engineering tokamak reactor with fusion power within the range of 50-200 MW and should be self-sufficient by blanket. Sixteen toroidal field (TF) superconducting coils of CFETR have been arrayed toroidally and are made up of Nb₃Sn superconductor. The maximum magnetic field of the TF coil is 10.8 T under the operation current of 67.4 kA. The TF coil should have strong stability margin under the condition of high field and strain. This paper discusses the design parameters, electromagnetic distribution, structure, and thermal and stability analysis of the TF superconducting magnet for CFETR.

Keywords

Tokamak devices; niobium alloys; superconducting coils; superconducting critical field; superconducting magnets; thermal stability; tin alloys; type II superconductors; CFETR toroidal field superconducting coils; China Fusion Engineering Test Reactor; Nb₃Sn; current 67.4 kA; electromagnetic distribution; fusion engineering tokamak reactor; fusion power; magnetic field; magnetic flux density 10.8 T; national scientific research project; plasma center; power 50 MW to 200 MW; superconducting magnet; superconducting tokamak; thermal stability analysis; Conductors; Magnetic fields; Plasmas; Superconducting cables; Superconducting coils; Superconducting magnets; CFETR; China Fusion Engineering Test Reactor (CFETR); magnet; superconducting; toroidal field; toroidal field (TF);

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2015.2396942

Filename

7027224