RE: Liquid properties

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

Original poster: "Luke" <Bluu-at-cox-dot-net> 

What I was thinking of is to make a single gap (parallel pipe type) with
a cooling fluid like ice water circulating inside the pipes.  This would
be an attempt to keep the electrodes from heating up at all.  That would
eliminate that heat from interfering with the quenching of the gap.  Air
could be directed right into the gap area to take care of removing warm
air from the area and any excess electrons or ions.

Any one have any thoughts on this?
I am seriously considering giving it a go.  Or is this barking way up
the wrong tree?

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: Wednesday, March 10, 2004 4:11 PM
To: tesla-at-pupman-dot-com
Subject: Re: Liquid properties

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>


You can't submerge the sparkgap in transformer coil --- the firing
sparkgap
will tend to breakdown the oil, ie, carburizing it, and soon the oil
will
become an erratic insulator.

Gases will work good, especially nitrogen which is cheap.  That's how a
quench gap works -- the O2 is quickly burned away leaving N2 (80% of
atmosphere) between the copper electrode faces.

This is also why a quench gap needs to be clamped and the G-10
insulating
material properly machined --- you need a near air-tight chamber between
the
copper electrodes.  We made a few using 3/16 inch thick copper with
circular
machined surfaces raised 1/8th inch on each surface --- then clamped
them
very tight with G-10 3/8th inch rod.  Performance was very good in the
range
2-6 kVA.  Nice for a potential xmfr powered system or multiple NST
powered
systems.

You can't cut them accurate enough with a bandsaw --- they need to be
machined for best performance.  If the chambers aren't sealed they
become a
standard atmospheric gap --- not a true quench gap similar to the old
spark
transmitters.

Dr. Resonance

  >
  > Im guessing that you want to submerge your spark gap....    if you
are,
  > most everything has been tried, hobby wise, semi professional wise,
and
  > extremely professional wise.....  things like near total vacuum, hi
  > pressured liquid hydrogen, SF6, oils, inert gasses, nobel gasses,
Pure
  > water...
  >
  > the voltages and amperages we use can make a Plasma cutter look
inept...
  > besides   air is cheap and pleanytful  :)
  >
  > Scot D
  >
  >
  > Tesla list wrote:
  >
  > >Original poster: "Luke" <Bluu-at-cox-dot-net>
  > >Can anyone point me to some liquids that have high thermal
conductivity
  > >and high dielectric strength?
  > >Thanx
  > >
  > >Luke Galyan
  > ><mailto:Bluu-at-cox-dot-net>Bluu-at-cox-dot-net
  > >http://members.cox-dot-net/bluu
  > >
  > >
  > >
  >
  >
  >
  >
  >