RE: Nitrogen VS Compressed air quenching

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

Original poster: "Tristan Steele" <ozonejunkie-at-westnet-dot-com.au> 

Hi Ian,

I am no expert in chemistry, but I would have thought that because of
the large amount of Nitrogen moving through the gap, there wouldn't be
an increase.

In order to create a oxide of Nitrogen, Nitrogen needs to be ionized in
the presence of oxygen.  If there is a large amount of Nitrogen, but
limited oxygen, then there would be no oxygen to bond with.  Even, in
the air, there is more nitrogen then oxygen, so my conclusion is that
there should be no more oxides of nitrogen produced then in a normal air
quenched gap.

If there was an increase, then I would think that it would be minor.

Tristan

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Tuesday, 4 May 2004 8:50 AM
To: tesla-at-pupman-dot-com
Subject: RE: Nitrogen VS Compressed air quenching

Original poster: "Ian McLean" <ianmm-at-optusnet-dot-com.au>

Just a quick question about nitrogen quenching.  Does this cause the
generation of more NxOx gases from the gap than normal?

Rgs
Ian.

  > -----Original Message-----
  > From: Tesla list [mailto:tesla-at-pupman-dot-com]
  > Sent: Tuesday, 4 May 2004 12:20 am
  > To: tesla-at-pupman-dot-com
  > Subject: Re: Nitrogen VS Compressed air quenching
  >
  >
  > Original poster: "Arpit Thomas" <arpit-at-inzo-dot-org>
  >
  > wow, thats interesting. Now what could it be about nitrogen
  > that provides
  > better quenching? could it be the fact tehre is less oxygen
  > to react with
  > or something? IT seems to me that if nitrogen is much better than
  > compressed air, you could save a bit of time carting a heavy
  > tank back and
  > forth if you made a circulating system for the nitrogen. a
  > vacuum cleaner
  > blower would be connected to the spark gap, and the exhauset
  > of the spark
  > gap ( this is all happening in a moderately large chamber)  then goes
  > through some metal pipe which cools it, and then goes into
  > the a resevoir,
  > such as an old water heater, then goes back to the blower.
  > YOud fill the
  > heater up with low pressure (2 atmospheres or so? ) nitrogen,
  > and then let
  > it last for ages :)
  >
  > How's carbon dioxide for quenching? I pinched an old (bit
  > rusty) water
  > heater made in 1988 off another house in my street which was
  > going to be
  > demolished, and carried it home. I'm using it as an air tank,
  > and might use
  > it to power an air blast gap. Another potential use would be
  > to put some
  > chemicals in which would react and generate carbon dioxxide
  > at a pressure
  > of about 6 or 7 atmospheres. I'd then use that to blast the gap :)
  >
  > *********** REPLY SEPARATOR  ***********
  >
  > On 2/05/2004 at 4:42 PM Tesla list wrote:
  >
  >  >Original poster: "john cooper" <tesla-at-tesla-coil-dot-com>
  >  >
  >  >I've added photos of my prototype nitrogen manifold to my
  > website, here's
  >  >the link:
  >  >
  >  >http://www.tesla-coil-dot-com/bipolar.htm
  >  >
  >  >They're at the bottom of that page.  There's a photo of it
  > installed in
  >  >the
  >  >original cabinet and two close-ups of the manifold that I just took
  >  >today.  For quenching ability the nitrogen is extremely
  > effective while
  >  >compressed air is barely noticeable, apples and oranges.
  > FWIW a 42 cubic
  >  >foot bottle costs about 14.00 to fill and lasts for two 8
  > to 10 minute
  >  >runs, the bottle and regulator were around 400.00
  >
  >