Parametric Analysis of the ITER TF Fast Discharge Using the 4C Code

Author

Savoldi Richard, Laura ; Bessette, D. ; Bonifetto, R. ; Zanino, R.

Author_Institution

Dipt. di Energetica, Politec. di Torino, Torino, Italy

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

4704104

Lastpage

4704104

Abstract

The recently developed and validated 4C code is used to analyse the fast discharge of an ITER TF coil, including the cooling circuits of winding and casing, and the quench venting system. The analysis shows that a quench can be initiated by the fast discharge, depending on the value of the thermal resistance of the conductor turn insulation. Eddy currents heat the structures and these transfer the heat especially to the side pancakes, where the quench is initiated. The hot spot temperature remains below ~37 K in the winding and ~55 K in the structures. The peak pressurization in the winding remains below ~8.5 MPa.

Keywords

Tokamak devices; eddy currents; heat transfer; plasma toroidal confinement; superconducting coils; thermal resistance; 4C code; ITER TF coil; ITER TF fast discharge; conductor turn insulation; cooling circuits; eddy currents; heat transfer; parametric analysis; peak pressurization; quench venting system; side pancakes; thermal resistance; Coils; Conductors; Discharges; Insulation; Integrated circuit modeling; Thermal conductivity; Windings; ITER; nuclear fusion; simulation; superconducting magnet;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2012.2188130

Filename

6156751