Re: Static gap.

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

Original poster: "John Richardson" <jprich-at-up-dot-net> 


Hi Luke,

Are you building a Gary Lau style sucker gap?  If not, then you will find
that performance will be severely restricted with a pipe setup with only one
gap.  You will want to break up the arc into several smaller segments as
oppposed to having one large gap.  As to airflow, most people use shop vac
motors for the Gary Gap, whilst a muffin fan works good for the Cu pipe
gaps.  Since everyone on this list is a scrounger, I don't think that there
is any set CFM per watt rating.  It all depends on the design of your gap
and what is available.  You will know after you fire things up if you have
enough airflow.

John Richardson

 > Original poster: "Luke" <Bluu-at-cox-dot-net>
 >
 > I am in the process of working out the details for a single gap static
 > gap.
 >
 > I plan on using some air flow to help quenching/cooling.  I have ran
 > across a few posts in the archives talking about using air to help with
 > quenching.  In some of the posts it is noted that the air flow was
 > varied and that the amount of airflow does not seem to change
 > performance much after a certain level is reached.  This level seems to
 > be a small percentage of what the builder designed the airflow maximum
 > to be.
 >
 > Any one have a suggestion as to what CFM range I might shoot for with a
 > static gap operating at around 1350 watts?
 >
 > Luke Galyan
 > Bluu-at-cox-dot-net
 > http://members.cox-dot-net/bluu
 >
 > -----Original Message-----
 > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > Sent: Friday, February 20, 2004 8:33 PM
 > To: tesla-at-pupman-dot-com
 > Subject: Re: Static gap.
 >
 > Original poster: "John Richardson" <jprich-at-up-dot-net>
 >
 > Hi Luke,
 >
 > There really is no preferred length.  I personally would use a bunch of
 > six
 > inch lengths, as this provides more surface area for gap travel, and
 > also
 > increases the mass of copper for heat distribution.
 >
 > John Richardson