Re: Liquid properties

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

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


Most water is conductive.  You would have difficulty isolating the HV as the
water would conduct back to the source.

Dr. Resonance

 >
 > 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
 >   > >
 >   > >
 >   > >