Re: Toroid Design

To: tesla-at-pupman-dot-com
Subject: Re: Toroid Design
From: Jim Lux <jimlux-at-jpl.nasa.gov> (by way of Terry Fritz <twf-at-verinet-dot-com>)
Date: Thu, 07 Jan 1999 12:46:29 -0700
Approved: twf-at-verinet-dot-com

> 
>   Increasing the coulombs and joules of energy would result in a spark when
> the breakout voltage is reached so the energy would not increase the voltage
> but would be lost in the spark. What I cannot find in the literature is what
> the efficiences are for these real world VDG conditions.

Take a look at Craggs and Meek, "High Voltage Laboratory Technique",
published by Butterworth Scientific Publishers in 1954. They have a
whole chapter on Van deGraaf generators, including performance numbers,
efficiencies, various belt configurations, etc. It's out of print, but
most good college libraries have it, and I got a copy via interlibrary
loan.

-- 
Jim Lux                               Jet Propulsion Laboratory
ofc: 818/354-2075     114-B16         Mail Stop 161-213
lab: 818/354-2954     161-110         4800 Oak Grove Drive
fax: 818/393-6875                     Pasadena CA 91109