Coupled mechanical-electromagnetic-thermal-hydraulic effects in Nb(3)Sn cable-in-conduit conductors for ITER
The crucial multi-physics problem of how to extrapolate from the performance of an isolated Nb(3)Sn strand measured in the laboratory to the performance of a superconducting coil using multi-strand twisted cables is addressed here. We consider the particular case of the path going from the LMI strand to the international thermonuclear experimental reactor (ITER) toroidal field model coil (TFMC), through its associated Full Size Joint Sample, the TFMC-FSJS. Mechanical, electromagnetic and thermal-hydraulic conditions are simulated using the ANSYS, ENSIC and Mithrandir/M&M codes, respectively. At least in this case, the DC performance of the short sample turns out to be relatively close to (considering error bars) but not fully representative of that of the coil, showing higher (less compressive) effective thermal strain but also higher sensitivity to the electromechanical load.
Bibliographic Reference: An article published in: Superconductor Science and Technology 18 (2005), pp. S376-S382
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1088/0953-2048/18/12/026
Record Number: 200719101 / Last updated on: 2007-04-11
Original language: en
Available languages: en