Thanks, resonanceman. I've got some others (no vids of those, and they are in storage, sorry) but this is my favorite. It's got tiny ball bearings on the conrod and the displacer link, that I found in a surplus store. And of course the main shaft is on ball bearings too.

The Graneau style "cold fog" water-arc explosions are produced by charging a big (physically large) capacitor bank, typically 0.3 to 3.0 microFarads, to 10-12 thousand volts, then discharging that into the water, through a Triggered Air Gap sparking switch, that is itself initiated by firing an automotive spark plug to start the gap ionization. Even though the energy per discharge may be only a few hundred Joules, it is given up in such a short time that each discharge represents kiloAmps at Kilovolts, hence megaWatts of power, over an extremely short time of course. Much of this power goes into making a big noise, fracturing the water, and blasting the water out the muzzle, so most of the efforts have been directed towards harnessing the KE of the blast directly. We tried pistons,Pelton turbines, levers, piezo transducers, reaction drives, Tesla turbines, and a bunch of other ways to extract the energy, always wondering why, if the Graneau process was so overunity as he claimed, we could never come close to break-even. Then we reanalyzed the problem, used more sophisticated modelling and better high-speed photography, and put his overunity claims to bed. But not for good, evidently, since he has chosen to ignore this work and continues to claim OU by the same tired and disproven (and circular) momentum transfer model.
Sorry, you punched the Graneau button, and it takes a while to run down.


You'd be better off, IMHO, using the input electricity to run a Meyer electrolysis cell and then burning the gas to heat your Stirling.

(In fact I think I'll try that very thing...I'll bet that baby would really go...)

Hi, I just wanted to state that its very easy to create a overunity device made of a stirling engine (at least in the theoretical approach).
As most of you here probably know, a heatpump create a temperature difference in much larger ammounts than what pure heating from electricity is capeable of (usealy the COP is around 3-5 depending on the quality).
That is in reality more energy extracted from a point in space than what it originaly did contain (inclduing the electricity used to create it).
This means, that if you want to make a bulletproof example that more energy is extracted than what was originaly put in (at least by us) you could build, say a room in a certain volume which is isolated from the temperature outside of it.
Inside this room you have both your heat pump and your stirling engine, with electricity being fed by cabels going through the walls, and ouput from the generator which is driven by the stirling engine, (the generator is also inside the room).
Allthough this procces is full of conversion inefficienses, it would be cabeable of creating a higher power output from the room than what was put into it, at least if the motor, generator and heatpump was made efficient enough.
I know that this would be a huge project with little in return if it was made to work, but I really see no problem of this feat being possible, and if proven, it would at least rock the ground of the scientists who claim that no such thing as overunity is possible, as a room which is inclosed can't provide an unlimited amount of power continiusly (at least if its only the energy in the heat we are looking at).

Btw, great work with this forum!

Thanks Nabo00o.

Also has anyone seen this video? Pretty nice explanation on how it works.
http://www.youtube.com/watch?v=CDntL4GZh0E