Comment on Exotic new superconductors delight and confoundComments−kurthr1yOne thing that goes unmentioned about room temperature superconductors is that they store energy as well. U = (B2/(2u0))V. 2u0 is about 2.5E-6N/A2So a 1m3 7T magnetic field would be about 20MJ or 7KWh. That doesn't sound like much, but collapse times could be microsec to generate GW of EM.−gaze1yThese novel new superconductors are generally considered to be "bad superconductors." They have really low critical fields.−justlikereddit1yCommercial MRI quenching doesn't result in explosions and there's 7T research MRIs so I assume the issue with how to bleed off energy is solved in a safe enough manner already−xbar1yThis is a useful fact to have handy.
Comments
One thing that goes unmentioned about room temperature superconductors is that they store energy as well. U = (B2/(2u0))V. 2u0 is about 2.5E-6N/A2
So a 1m3 7T magnetic field would be about 20MJ or 7KWh. That doesn't sound like much, but collapse times could be microsec to generate GW of EM.
These novel new superconductors are generally considered to be "bad superconductors." They have really low critical fields.
Commercial MRI quenching doesn't result in explosions and there's 7T research MRIs so I assume the issue with how to bleed off energy is solved in a safe enough manner already
This is a useful fact to have handy.