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Article #15492

Re: Flywheel batteries as EV power source

#15492
From: Richard Stead
Date: Tue, 29 Dec 1992 01:14
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In article <72307@cup.portal.com>, Ted_Eugene_Viens@cup.portal.com writes:
> If I took a megajoules worth of Gasoline vapor
[...]
> Then let us place about a kilogram of graphite directly between them.  Now let 
> us discharge, as quickly as power source resistance will let us, a megajoule of
> energy through the graphite.  This is where we will part in our agreement.  My
> thoughts are that a person standing next to the housing would here a very (very
> ,
> very) loud bang.  If they turned to look at the housing, they would see it
[...]
> Again, I am sure we might disagree somewhere....

No disagreement.  Energy is conserved.  A megajoule of gasoline is about a
teaspoon.  Makes a big bang if perfectly mixed with air, but not
overwhelmingly big.  A graphite heater discharging a megajoule will
also do interesting things, but unless it is very small (in which case
it will be difficult to pump a magejoule through), it will not vaporize -
since a megajoule can only vaporize 20 grams of graphite.

However, we are talking about 400 megajoules in the flywheel.


--
Richard Stead
Center for Seismic Studies
Arlington, VA
stead@seismo.css.gov
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Path: arc1-ca.pugleaf.net!sparky!uunet!haven.umd.edu!darwin.sura.net!seismo!skadi!stead
From: stead@skadi.CSS.GOV (Richard Stead)
Newsgroups: sci.electronics,sci.energy,rec.autos
Subject: Re: Flywheel batteries as EV power source
Message-ID: <51714@seismo.CSS.GOV>
Date: 29 Dec 92 01:14:10 GMT
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