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Article #15037Re: Flywheel batteries as EV power source
From: Andrew - Palfreyman
Date: Tue, 22 Dec 1992 17:20
Date: Tue, 22 Dec 1992 17:20
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I wrote: >Re. the exploding flywheel: I was mulling on flash-filling the >cavity with thick-setting foam, but I imagine that the response >time is way too long compared with the split of the wheel. >Comments? Lydick: : Even if the response time weren't too long, this "foam" would merely be yet : another thing for the flywheel fragments to vaporize, and would almost : certainly only exacerbate the problem. Why do so many people have so little : grasp of the amount of energy we're talking about, here? Arrogant prating becomes you, sweetie. Nice to see a preacher here 'bouts. The largest difference, in any case, between the "exploding gasoline" scenarios and the broken flywheel is not the energy but the instantaneous power - probably between 8 and 10 orders, depending. The energy dissipation within the volume of the container tends to zero for a vacuum; most of it occurs at the container walls. If one could spread out the volume of energy dissipation, the chances of containment are concomitantly higher. Despite this fact, I don't *really* think foam is going to do it. -------------------------------------------------------------------------- | lord snooty @the giant | Would You Like Space Potatoes With That? | | poisoned electric head | andrew_-_palfreyman@cup.portal.com | --------------------------------------------------------------------------
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Path: arc1-ca.pugleaf.net!sparky!uunet!portal!cup.portal.com!lordSnooty From: lordSnooty@cup.portal.com (Andrew - Palfreyman) Newsgroups: sci.electronics,sci.energy,rec.autos.tech Subject: Re: Flywheel batteries as EV power source Message-ID: <72196@cup.portal.com> Date: Tue, 22 Dec 92 09:20:47 PST Organization: The Portal System (TM) Distribution: world References: <1992Dec13.114534.961@cmkrnl.com> <1992Dec15.004956.465@mtu.edu> <1992Dec15.194558.2556@adobe.com>, <1992Dec16.192456.6261@news.cs.brandeis.edu> <1goebdINNik@gap.caltech.edu>,<1992Dec17.035214.15058@u.washington.edu> <1gov35INNik@gap.caltech.edu> <1992Dec17.170002.28389@u.washington.edu> <1h2vvbINNfm0@gap.caltech.edu> Lines: 27