RE: [TCML] RSG Disk Loading?

["S&JY" <youngs@xxxxxxxxx>]

Greg,

Yes to all, and you aren't missing anything.  A Tesla turbine is a few disks
spinning, just like a SG rotor, and it relies on fluid friction with the
rotor surfaces to do the pumping action.  If you could put your RSG in a
vacuum chamber and pump down the air pressure, you would see the rotor speed
up a lot (if driven by a DC or asynchronous motor).

Look up Tesla Turbine in Wikipedia and you will see it works with a physics
phenomena called boundary layer, the same thing that contributes to RSG
rotor resistance.

--Steve Y.

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of G Hunter
Sent: Sunday, March 14, 2010 3:13 PM
To: tesla@xxxxxxxxxx
Subject: [TCML] RSG Disk Loading?

RSG Gurus,

What is the source of "disk loading"?  How can an RSG rotor, which appears
to be no more than a flywheel, load down a motor?  Mass alone isn't a load
once the inertia of the disk is overcome and the motor spins up to its rated
RPM.  All that leaves is air drag.  Do the flying electrodes account for
significant air drag?  Does the surface of the rotor itself move enough air
to load the motor?  My education in classical physics ended with high
school.  I'm mostly self-taught in electric motors.  What am I missing?

Cheers,

Greg
http://myweb.cableone.net/grcarhunter


      
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