Re: Toroid Design

To: tesla-at-pupman-dot-com
Subject: Re: Toroid Design
From: Richard Hull <rhull-at-richmond.infi-dot-net> (by way of Terry Fritz <twf-at-verinet-dot-com>)
Date: Sat, 26 Dec 1998 20:25:05 -0700
Approved: twf-at-verinet-dot-com

Tesla List wrote:

> Original Poster: "John H. Couture" <COUTUREJH-at-worldnet.att-dot-net>
>
>   Ed, Richard -
>
>   There are some equations that can be used to design the sphere or toroid
> on the Tesla coil as follows:
>
>   Sphere dia = Ct/1.4   Ct = Sphere capacitance
>
>   Ct = Cp x (KVp/KVs)^2
>
>   Sphere dia = KVs/35  (70 KV air breakout potential)
>
>   Q = KVs/KVp
>
>   J = .5 Ct x V^2   J = energy in terminal
>
>   Ct = 12.34 x cuberoot(KVp^2 * Cp)  Ballpark figure
>
>   From these equations it is obvious that the sphere or toroid size is
> dependent on several other Tesla coil parameters.
>
>   John couture

John,

If we were firing the coil once every 10 seconds or so for one pulse only, the
above would play well.  However, with the continuous gas ionization and
altered
envronment about the system a number of sliding parameters might make the
above
equations have to have fudge factors based on any number of other factors both
seen, unforeseen, and or unknown.  Way too much dynamic stuff is happening
to use
the simple formulae above to warrant a specific result.

Richard Hull, TCBOR