Details

Autor(en) / Beteiligte

• Nakamura, K.
• Yamamoto, Y.
• Suzuki, K.
• Fujiyama, S.
• Takao, T.
• Murakami, H.
• Natsume, K.
• Yoshida, K.

Titel

Thermal Stability of Conductor Joint for JT-60SA Central Solenoid

Ist Teil von

• IEEE transactions on applied superconductivity, 2016-06, Vol.26 (4), p.1-4

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2016

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• Broader Approach activities accompany the ITER project, and these activities have been carried out between the EU and Japan. The type of the joint between the conductors of the JT-60 Super Advanced (JT-60SA) central solenoid (CS) is a butt joint. The butt joint is a compact joint, but it has limited stability because of poor helium cooling. In this paper, the butt joint of the JT-60SA CS is analyzed, for the temperature rise at the butt joint, by using the FEM simulation software COMSOL Multiphysics. As a result, when the plasma disruption occurs, the butt joint of the CS in the JT-60SA has enough high T CS margin even if the mass flow decreases from 6.0 to 4.0 g/s. These analyzed results become the fundamental data to evaluate the thermal stability of the coils and to protect coil systems from quench.