Coupled Thermal-Hydraulic/Electromagnetic Analysis and Interpretation of the Test Results of the ITER TFPRO2 OST1 Conductor

Author

Zanino, Roberto ; Bellina, Fabrizio ; Ribani, Pier Luigi ; Richard, Laura Savoldi

Author_Institution

Dipt. di Energetica, Politec., Torino, Italy

Volume

19

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1483

Lastpage

1487

Abstract

The THELMA code is used to study the coupled thermal-hydraulic electro-magnetic problem of the current and temperature distribution inside the TFPRO2 Nb₃Sn SULTAN sample, which was tested in 2007. The code computes self-consistent voltage and temperature values both on the jacket, where they are measured, and inside the cable, where they are more directly representative of the conductor performance. The measured temperature gradients, related to non-uniform Joule heating at the joint and in the high-field region, as well as to non uniform current distribution, are reasonably well reproduced by the model, together with the voltage-current characteristics.

Keywords

Tokamak devices; critical currents; electromagnetism; fusion reactor ignition; fusion reactor materials; niobium alloys; nuclear engineering computing; plasma heating; superconducting magnets; superconducting materials; tin alloys; ITER TFPRO2 OST1 conductor; Nb₃Sn; Nb₃Sn SULTAN sample; THELMA code; coupled thermal-hydraulic-electromagnetic analysis; critical current; nonuniform Joule heating; nonuniform current distribution; self-consistent computation; self-consistent temperature gradients; self-consistent voltage; superconducting magnets; voltage-current characteristics; Fusion reactors; ITER; SULTAN samples; superconducting magnets;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2018205

Filename

5129269