"Bert Hickman" <bert_hickman@[EMAIL PROTECTED]
> wrote in message
news:m6ydncqLDeM6Nf7VnZ2dnUVZ_r7inZ2d@[EMAIL PROTECTED]
> Vince Morgan wrote:
> > "Don Kelly" <dhky@[EMAIL PROTECTED]
> wrote in message
> > news:fxF8k.51809$gc5.48712@[EMAIL PROTECTED]
> >> ----------------------------
> >> "Vince Morgan" <vinharAtHereoptusnet.com.au> wrote in message
> > And what could this mean?
> >
> > [quote]
> > highly efficient mechanism for
> > liberating stored chemical energy and therefore a possible future
energy
> > source.
> > [/quote]
> >
> > Why would one consider energy conversion if what you have is less than
it
> > cost you in the first place?
> > I'm probably wrong, because I usually am ;)
> > Regards,
> > Vince
> >
> >
> >
>
> Hi Vince,
>
> You read correctly. A similar paper, "Arc-liberated chemical energy
> exceeds electrical input energy" can also be found in the Journal of
> Plasma Physics (UK) (2000), 63: 115-128, by Dr. Peter Graneau. Other
> papers dealing with underwater electrical explosions include:
>
> "Electrodynamic explosions in liquids", Applied Physics Letters, March
> 1, 1985, Volume 46, Issue 5, pp. 468-470, by Peter Graneau and P. Neal
> Graneau
>
> "Powerful water-plasma explosions", Physics Letters A, Volume 117, Issue
> 2, 28 July 1986, Pages 101-105, by Roy Azevedo, Peter Graneau, Charles
> Millet, Neal Graneau
>
> "The Anomalous Strength of Cold Fog Explosions Caused by Water Arcs",
> Pulsed Power '98 (Digest No. 1998/258 and 1998/441), IEE Symposium on
> 1-2 Apr 1998 Page(s):40/1 - 40/3, by Neal Graneau
>
> In the first cited paper above, Dr. Graneau used a capacitor bank with
> known initial energy to create an underwater arc within a volume of
> water inside a thick steel tube. The explosive capacitor discharge
> creates a fog that exits the tube at high velocity (100 - 1000 m/s)
> depending on the initial bank energy. Graneau measured the momentum and
> energy of the high velocity water fog using a ballistic pendulum. He
> found that, for many (but not all) "shots", the kinetic energy of the
> water jet exceeded the initial energy of the capacitor bank by as much
> as 40%. Additional energy was (apparently) liberated from the media, but
> the mechanisms have not been identified. The phenomenon was relatively
> repeatable...
>
> Bert
Thank you Bert,
I'm very pleased to see the above. I had seen a couple of the citations
myself but couldn't remember where exactly.
40% isn't useful (even if it were reliably repeatable) as an energy
source.
However, the fact that it happens at all is something of note I believe.
Thank you again,
Regards,
Vince
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