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RE: TC vs Lightning
See terrestrial lightning and 'upward lightning' parameters online at
http://www.altair-dot-org/atmoelec.htm
Much of the terrestrial data is from Uman.
Will
<snips>
> I have attempted to compare the Lightning parameters in Uman's book with
> a typical Tesla coil using the JHCTES program. The coil is 60 KW with a 10
> meter (32.8 ft) spark length. This coil is similar to your 55 KW coil
> described in the TCBA News Vol 10, #2, page 14.
>
> Uman Typical
> Lightning Tesla Coil
>
> Kvolts/m 1000 316
> Surge Z/m 100 2434
> Amps 10^4 130
> watts/m 10^10 4.1 x 10^7
> time usec 10 10
> joules/m 10^5 410
>
> KVs = 65 x (32.8 X 12)^.65 = 3160/10 = 316 KV/m
> Surge Z ohms = sqrt(ls/Cs) = sqrt(.0646/109X10^-12)
> = 24344/10 = 2434.4/m
> Amps = V/Z = 316 000/2434.4 = 130
> Watts = V x A = 316000 x 130 = 4.1 x 10^7/m
> Joules = W x t = 4.1 x 10^7 x 10^-5 = 4.1 x !0^3/10 = 410/m
>
>
> >See Page 215, 'Lightning', by Uman.
> >The typical energy in a strike is approximately 100kJ/m.
> >Therefore a 2 mile strike would therefore dissipate about
> >_322 MILLION_ Joules.
> >
>