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Re: Hydrogen gap
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
>
>
>