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Article #15037

Re: Flywheel batteries as EV power source

#15037
From: Andrew - Palfreyman
Date: Tue, 22 Dec 1992 17:20
27 lines
2130 bytes
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.
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| 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
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>

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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