Posted: Sat Aug 01, 2009 6:55 pm
Concerning pulsating magnets. I know very little, but I assume that alot of current goes into creating the magnetic field and alot of current comes out as the field collapses. Does that energy have to go to ground? Could the energy from the collapsing magnetic field be shunted to a second magnet or capaciter so that at least a portion of the energy is recycled?chrismb wrote:Ah. I see. So the 'return' is quite good on a 1MJ input, though of course it doesn't include the magnetic field (as it changes on the graph, yet without a change in the energy). In the case of JET, for example, they've already got to a state of around 20MJ in for 20MJ of neutrons out, again only for a pulse, but the magnetic field takes 1GJ to create. Imagine if that were needed 1000x per sec!!??MSimon wrote:Just trying to get a feel for the numbers. Using TP as my blackboard.chrismb wrote:What's your point?
Dan Tibbets