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- Xref: sparky sci.electronics:21663 sci.energy:6482 rec.autos:30632
- Path: 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
- References: <1992Dec21.193621.12001@microware.com> <51694@seismo.CSS.GOV> <72307@cup.portal.com>
- Sender: usenet@seismo.CSS.GOV
- Followup-To: sci.energy
- Lines: 27
- Nntp-Posting-Host: skadi.css.gov
-
- 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
-