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Re: Discharge impedance of a CW Tesla coil
>Original Poster: "Malcolm Watts" <malcolm.watts-at-wnp.ac.nz>
>
>HI Ralph,
>
>> Original Poster: Parpp807-at-aol-dot-com
>>
>> In a message dated 3/13/00 3:03:08 AM Central Standard Time,
>tesla-at-pupman-dot-com
>> writes:
>>
>> << >I am not sure why you noticed less ozone, but the reduced
>> >NOx is probably due to the lack of the spark gap. I donīt
>> >think the coilīs discharge produces noticeable amounts of NOx,
>> >but the pulsed power you see in a DW powered coil, in the
>> >main spark, is (I think) the main source of NOx and not the
>> >coilīs output itself. Due to the outer shell state (electron
>> >configuration) of nitrogen, it takes a lot of energy to get
>> >nitrogen to combine with oxygen to form NOx. Nitrogen is a
>> >very stable element, whereas oxygen can easily be "tickled"
>> >into combining with another element. >>
>>
>> Hi Reinhard, Terry,
>>
>> Methinks you are on the right track with relating the ozone production to
>the
>> size of the discharge. John Freau reports that he gets considerable ozone
>> from his VTTC throwing 19 inch sparks. Not only is the 3O2 + energy
yields
>> 2O3 reaction unstable, less than
>> 8% of the available oxygen is utilized before the reaction reverses. The
>> triatomic
>> molecule uses 8 % of 20% of the volume of air in the room. So the way I
seez
>> it, my little VTTC produces no detectable ozone because the volume of air
>> within the discharge "sphere" is too small.
>
>If that is all true, then why is there little detectable ozone when you
>create long arcs with an arc welder? The fact that spark length is
>mentioned again and again says to me that there is a voltage (read
>energetic) factor involved. ?
>
>Regards,
>Malcolm
>
HEAT!!!! (2*O3 > *O2)
Ruud de Graaf