Re: Best RSG ever?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "S & J Young by way of Terry Fritz <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>

Greg,
Your idea has merit and I hope you try it soon.  The downside is the power
required for the air blast.  A vacuum cleaner type blower or air compressor
will draw at least 6 amps at 120 volts, so it probably needs to be powered
off a separate circuit breaker if your TC power transformer is drawing 12
amps or more.

My ARSG uses 3/16 inch brass rod with heat sinks to handle around 1 KW of DC
power.  The stationary electrodes do erode significantly.  I think erosion
of your flattened copper electrodes will be slowed but not completely
prevented.  I believe the copper will still tend to get vaporized at the
point of arcing.  Tungsten really does hold up well to powerful arcs, and it
is not that difficult to make tungsten electrodes.

If I ever build another RSG, I will use tungsten.  But I am having good
success with a tungsten TSG, so my RSG may forever sit on a shelf . . .

--Steve

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, January 05, 2002 8:23 AM
Subject: Best RSG ever?


> Original poster: "Mr Gregory Peters by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au>
>
> Last night, I was thinking about my airblast/RSG arrangement, and came
> up with an idea that may or may not be original, but which I think has
> great potential <SNIP> Now, last night I thought "why not combine the two
gap types in the one
> unit?" My idea is to pass, say, 150 psi of air through the CENTRE of
> the stationary RSG electrodes. This has several advantages. Firstly,
> follow `round is reduced and quenching is improved. So coil performance
> is better. Secondly the rotary and stationary electrodes won't get as
> hot. So maybe we can forget about using tungsten electrodes, and use
> cheaper disc materials that don't need high temperature abilities.
>
> One way I have thought of doing this is to make the stationary
> electrodes from copper pipe. You could hammer the end of the pipe until
> it is almost flat. If you align the flat pipe perpendicular to the
> rotating electrodes, the width will be less than 1/4", so the dwell
> time will still be quite small. You would then blow air through this
> pipe. The air would spread out, like a garden hose nozzle. It would
> quench the arc and would also cool the stationary and rotating
> electrodes and also the RSG rotor in the immediate vicinity of the
> rotating electrodes. This would help prevent melting of the rotor and
> would increase the life of the electrodes. What do you think?
>
>
> Cheers,
>
>
> Greg Peters
> Department of Earth Sciences,
> University of Queensland, Australia
> Phone: 0402 841 677
> http://www.geocities-dot-com/gregjpeters
>
>
>
>
>