Re: Hydrogen gap

To: tesla-at-pupman-dot-com
Subject: Re: Hydrogen gap
From: ross andrews <sflourine-at-home-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Sun, 13 Feb 2000 20:47:12 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

	Yeah, alcohol can't be dried easily (copper sulfate leaves a ton of
water in anything).  You could use kerosene - this is easily dried with
sodium metal (hard to get ahold of, tho).  Why don't you circulate
hydrogen through the electrodes for cooling then thru a water cooling
device in the same way they do in large generator?  Granted, larger
temperatures, but it still oughta work.  I think hydrogen picks up heat
easily..dont know for sure tho.

	Ross
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
> >
> >
> >