Re: [TCML] RSG Cooling - was - a new coil being born + PICTURES

["Jeff W. Parisse" <workshop@xxxxxxxxxxxxx>]

I don't know an answer to your question but I have found that 400cfm per 
10kW works to air cool medium sized SRGs (given G11, proper design, rotary 
heatsinks, etc.).

Jeff

----- Original Message ----- 
From: "Yurtle Turtle" <yurtle_t@xxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Wednesday, July 30, 2008 6:25 PM
Subject: Re: [TCML] RSG Cooling - was - a new coil being born + PICTURES


> This thread got me thinking...
> Is there any consensus over "approximately" how much power is lost (heat I 
> need to remove) through a rsg? I have a 10" pig/coil I usually run at 
> around 10 kVA with a "four gap" rotary. If I were to try and design a 
> cooling system, what would a good rating be for watts to dissipate? I 
> probably run around 400 - 480 bps with a 100 nF cap. I wanted to check the 
> Joules per bang, but hot-streamer is down and that's where I have my 
> specs.
>
> Adam
>
> --- On Tue, 7/29/08, Jeremy Scott <supertux1@xxxxxxxxx> wrote:
>
> > From: Jeremy Scott <supertux1@xxxxxxxxx>
> > Subject: Re: [TCML] a new coil being born + PICTURES
> > To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> > Date: Tuesday, July 29, 2008, 11:05 AM
>
>
>
> > > It'll be interesting to see
> > > how hot it gets.
> >
> > Yeah I thought that might be an issue too but I'm not
> > too concerned.
> > The purpose of the ballast is to ramp up to full power
> > slowly so most of the time the core won't even be in. I
> > built everything for 50A but realistically I'll probably
> > only run it at 30A. (#10 wire in the
> > ballast.)
> >
> > > >Here's some of the  50A 220V cables I'm
> > going
> > > to use. TIP: Recreational
> > > >vehicle (RV)  stores are a great supply for 50A
> > > extention cables.
> > >
> > >
> > > That's a great tip, thanks!
> > >
> > > >Maxwell Caps. I've had these for awhile. 100KV
> > @
> > > 10nF.
> > >
> > > >I can easily short out the last capacitor for 70KV
> > @
> > > 15nF:
> > >
> > > >
> > >
> > >http://mywebspace.wisc.edu/jeremyscott/web/MaxCaps.JPG
> > >
> > >
> > > I hope those outside terminals don't come too
> > close to
> > > all that pretty wood!
> >
> > They actually go through the wood on the ends of the box
> > and there are two screws that I crank down to sandwich the
> > bank together. When I want to take a capacitor out, I loosen
> > the press and stick some wire in there to short out one of
> > the capacitors then tighten it again. Is that bad? I've
> > used this capacitor bank before without problems, and I coat
> > the exposed terminals with polyurethane for an extra little
> > bit of insulation. (Home Depot has this liquid rubber stuff
> > I want to try, but it's ugly orange.)
> >
> >
> >
> >
> >
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>
>
>
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