Conveners
M2Po2B: Modelling and AC Losses
- Milan Majoros (The Ohio State University)
- So Noguchi (Hokkaido University)
The mechanical stress in the superconducting magnets due to clamping forces and Lorentz forces have been investigated by many researchers. The main issue is a critical current and quench induced by a magnetic field and mechanical strains in the busbars. Unfortunately, much less attention was paid to the mechanical stress and stability of the busbars that power the magnets. The self-induced...
The CORC® superconducting cables composed of YBCO coated conductors are of great interest for power transmission applications due to many advantages such as high power density, lightweight and low loss. The flowing cold Helium gas can be used to cool HTS cables down to 50 K to significantly improve their current carrying capacity. Coupled electromagnetic-thermal finite element (FE) simulations...
In this work, we performed studies of quench protection relevant to MgB2 based 3T conduction cooled magnetic resonance imaging (MRI) machine. We modelled a conduction cooled MgB2 whole body, segmented coil MRI design. The overall design had 3T in the bore, with 10 ppm homogeneity in a 49 cm DSV, total magnet length = 1.37m, total conductor length = 121km, operating current Iop = 287 A,...
As typical REBCO conductors contain laminated high-aspect-ratio (HAR) thin films, such as the silver, REBCO, and buffer layers, effective modeling is a significant challenge. In this study, the three-dimensional/two-dimensional (3D/2D) mixed-dimensional modeling method is adopted to build a novel elastic-plastic structural mechanics model, which realizes the entire simulation of fabrication...
Rare-earth barium copper oxide (REBCO) coated conductor (CC) tapes are promising for high-energy and high-field applications. In epoxy-impregnated REBCO superconducting windings, due to the weak c-axial strength of REBCO CC tapes, delamination induced by thermal mismatch stress and Lorentz force significantly threatens stable operation. As the epoxy-impregnated REBCO superconducting magnets...
