Article View: sci.electronics
Article #15492Re: Flywheel batteries as EV power source
From: Richard Stead
Date: Tue, 29 Dec 1992 01:14
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 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