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Re: Interesting ozone production data
Hi Terry,
Very interesting. Only 5 KV in a 5" arc, wow! But it doesn't surprise me
that much. I would think that 5 KV would be enough to initiate the
production of Ozone, but perhaps some other factors are involved. Perhaps
it is the heat of the CW corona that is reducing O3 output, and also the
heat will cause more mixing with air, thus dilluting it. My experience
has been that my VTTC's produce some O3 (and possibly more NOx), but not
as much O3 as my clasic coils have. But the comparason is tedious, as my
max spark lenght for a pulsed VTTC is 24", but a clasic TC with 24 inch
discharge, as you have shown, the voltage is possibly much lower in a
CW coil. Even so, a clasic TC producing 24 inch discharge will make a
closed room very unbarable in short order. Not as much with my 24 inch
VTTC discharge.
Regards,
David Trimmell
On Thu, 16 Mar 2000, Tesla List wrote:
> Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
> Hi David,
>
> It is interesting to note that in my test, with a 26000 ohm arc at about
> 200mA, the voltage per inch in the 5 inch arc, may have only been 1000
> volts per inch. Perhaps that is below the ozone production voltage.
>
> Cheers,
>
> Terry
>
>
> At 07:33 PM 03/15/2000 -0800, you wrote:
> >Yeah, I saw this one also and posted a url a few days ago. If you look at
> >the equation, you will notice that Frequency and Voltage are great
> >contributors, NOT heat. I have done simple tests with two electrodes
> >insulted with LDPE and a TC (spark gap type) with 3-4 inch discharge (low
> >voltage, for a TC!) and with using the very unscientific method of "sniff
> >test" it seems to be a very good producer of O3. I still "think" that NOx
> >may thrive under higher temp discharge, but haven't found any thing to
> >verify that.
> >
> >Regards,
> >
> >David Trimmell
> >
> >At 04:44 PM 3/14/00 , you wrote:
> >>Original Poster: "Ruud de Graaf" <rdegraaf-at-daxis.nl>
> >>
> >>Hi All,
> >>
> >>Today I searched the net for 'ozone production' and I found:
> >><http://www.esb.ucp.pt/~bungah/disinfec/ozprod.htm>http://www.esb.ucp.pt/~b
> >>ungah/disinfec/ozprod.htm
> >>
> >>The most important ozone enemy seems to be...... HEAT! Unfortenately
this is
> >>also our enemy (melting spark gap, bad quencing)! This aspect is in
line with
> >>my own experience until now (low energy and temp>high ozone production,
high
> >>energy and temp>low ozone production.
> >>
> >>We better place those gaps in air-tight boxes guys!
> >>
> >>Ruud
> >>Greetings from Holland
> >>
> >>
> >>
> >
>
>