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Re: Hydrogen gap
Tesla List wrote:
> Original Poster: "Steve Cook" <Steve-at-g8cyerichmond.freeserve.co.uk>
>
> I foresee a significant problem with using alcohol. Even so-called absolute
> ethanol contains a significant amount of water (1-2%). Chemically drying it
> is possible using anhydrous copper sulphate, but even this leaves a trace of
> water.
> Steve Cook
> --------------------------
> ----- Original Message -----
> From: Tesla List <tesla-at-pupman-dot-com>
> To: <tesla-at-pupman-dot-com>
> Sent: Tuesday, February 01, 2000 2:26 AM
> Subject: Hydrogen gap
>
> > Original Poster: Mike Nolley <mnolley-at-mail.slc.edu>
> >
> > As you all probably recall, I'm working on a hydrogen gap-driven coil.
> I
> > plan to start it this summer, and right now I'm in the design phase. It
> is to
> > be loosely modeled on Poulsen systems, in that it will be CW, include
> > copper and
> > graphite electrodes and might also include exterior Neodymium magnets for
> > quenching.
> >
> > There will be 9 gaps in series, alternating between copper and
> graphite
> > electrodes, the copper ones consisting of 1/2 inch tubing with pipe caps
> as the
> > gap surface--the graphite electrodes would be encased in larger 3/4 inch
> > tubing. Both would be cooled with alchohol from the inside. The issue
> is, I
> > plan to pump the alchohol from one electrode to another thru vinyl tubing.
> > Would there be a significant current leakage through the alchohol? The
> second
> > element of the gap which needs work is the hydrogen quenching. The gap
> will be
> > enclosed by a 2-3 foot aluminum box, composed of 2 half-boxes TIG welded
> > together. Will the Tig welds be embrittled significantly by the hydrogen?
> Or
> > does that only occur at high pressures? I plan to pump the hydrogen
> > through the
> > gap slowly-- would it be more cost effective to use the pressure from the
> tank
> > and somehow recycle it, or use a pump? Would I be able to use a
> conventional
> > pump, or is this just a pipe dream, if you'll excuse the pun? I'd like to
> know
> > how feasible this project will be, given my price limit of around
> $500-$700
> > (The DC power supply and probably the current limiting are taken care of).
> > I'd appreciate any comments.
> > --Mike
> >
> >
> >
In the past i need to quip alcool dry and i use calcium carbite but take care
because it's produce acetylene (explosif).