Re: Air blast SG question

["Luc" <ludev-at-xxxxxxxxxxxx> (by way of Terry Fritz <twftesla-at-xxxxxxxxxx>)]

Hi Garry

I note same result then Justin Hays ( same thread ) with a single gap and lot
of air flow 30 to 80 lb/p^2  flat nuzzle ( maybe it's not a reasonable airflow
) the breakdown voltage increases with the pressure. This explain my question .
For the moment I can't test it with a coil I can make some experiment but I
can't run a coil. I like to know if some of you find any advantage to run a
narrow gap with a big air flow .

If the result is good I want to experiment with may be liquid flow . I saw a
study by Tesla he use a rotary inside oil under pressure. I copy a part of this
text and make a pdf file you could download it at this address:
 http://pages.infinit-dot-net/luc2/tesla_oil_rsg.pdf

Luc Benard

Tesla list wrote:

> Original poster: "Lau, Gary" <Gary.Lau-at-compaq-dot-com>
>
> Comparing wide gap, small air flow with narrow gap, high air flow is not a
> valid comparison.  The gap width determines the gap breakdown voltage,
> largely independent of (reasonable) airflow, and Vgap is something that you
> want set to one value, regardless of other system variables.  Thus, only one
> gap width is correct.
>
> I have done experiments with several single static gaps.  Air flow was
> essential in all of them, but the actual degree was not at all critical.
> Anything above a certain modest amount seemed adequate, and increasing air
> flow above that level offered no increase in performance.  Performance was
> dismal below that threshold value.
>
> I believe that single static gaps don't quench as well as multiple static
> gaps, though this may only be when there are not attached streamers.  When
> there are streamers, quenching kind of comes naturally.  And I further
> believe that single static gaps offer significantly lower gap losses than do
> multiple static gaps, and will give better performance.
>
> See my web site for details on construction and measurements:
> http://people.ne.mediaone-dot-net/lau/tesla/tesla.htm
> <http://people.ne.mediaone-dot-net/lau/tesla/tesla.htm>
>
> Gary Lau
> Waltham, MA USA
>
> >Hi all,
> >
> >I like to know if some of you make test on air blast SG. I want to know
> >if you had compare wide gap with small air flow vs narrow gap with high
> >air flow. What is your conclusions ? about quenching, general
> >performance, etc.
> >
> >Luc Benard
>
>