🚀 go-pugleaf

In <olsen.42.725052409@vetmed.cvm.uiuc.edu> olsen@vetmed.cvm.uiuc.edu (Aart_Olsen) writes:

|In article <77846@ncratl.AtlantaGA.NCR.COM> mwilson@ncratl.AtlantaGA.NCR.COM
|(Mark Wilson) writes:
|>In <olsen.32.724613003@vetmed.cvm.uiuc.edu> olsen@
|vetmed.cvm.uiuc.edu (Aart_Olsen) writes:>
|>|In article <BzEsw7.57B@cs.uiuc.edu> morrison@cs.uiuc.edu
|(Vance Morrison) 
|writes:>

|>|>1) Slow down the rate of energy dumping. ...
|>
|>|This is what laboratory ultracentrifuges do.  Usually the rotor housing
|>|is contained in a thick bronze casing which "slowly" absorbs the kinetic 
|>|energy.  I once heard an ultracentrifuge blow, and it sounded like a freight
|>|train for maybe five minutes.  Lab centrifuges contain a surprising
|>|amount of energy--even though they have relatively small rotors and big 
|>|motors they take quite a while to get up to speed because so much has to 
|>|be pumped into them. 
|>
|>Do you happen to know how much one of the little beasties weighs.
|>

|Ultracentrifuge rotors weigh about 2-4 Kg.  They are maybe 15 cm diameter, 
|spin at 60-80KRPM.  I think the best of them these days develop 800 kilo-
|gravities at the tube ends (the tubes fit in the rotor).  They are the best 
|technology around, by the way; they are about as massive and rotate as fast 
|as current metallurgy reliably allows.

Very usefull information, thanks.  Do you know how much the containment
weighs.  The reason I am asking is somebody wants to put this thing in
a car so it will have to be light.

I don't have the equations handy, but from the size and speed of the rotor,
it doesn't sound like this thing has a fraction of the energy we have
been talking about in a flywheel battery.

-- 
Mob rule doesn't become any prettier, just because the mob start to call itself
a government.
It ain't charity if you are using someone else's money.
Mark.Wilson@AtlantaGA.NCR.com