@Aaron

You'll have to excuse me but I don't see any extraordinary in the circuit you made.


1. You charge capacitor to some small voltage (I guess 110-250V if you using a standard inverter). The voltage is simply too low to allow for capacitor discharge over sparkplug electrodes.

2. You close switch discharging the capacitor into the primary of the ignition coil (the good old CDI concept) thus causing the high voltage spark to jump over the electrodes of the sparkplug. The high voltage spark will cause local media ionization thus allowing for the low voltage/high current source (inverter) to produce high current (and high temperature) arc.

Of course extremely high temperature of high current arc will explode water vapor or steam. But then again if you take any extremely high temperature object and put it in contact with steam it will explode it.



I also looked at the links to another forum you provided and they're using pretty much the same concept. I maybe missing something but I don't see how is that related in any way to Gray tube electro-radiant event? I admit it is a great way for causing hot arc in order to explode water steam but the way I see it it's nothing more than that.