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- Xref: sparky sci.electronics:21486 sci.energy:6418 rec.autos.tech:17119
- Newsgroups: sci.electronics,sci.energy,rec.autos.tech
- Path: sparky!uunet!paladin.american.edu!darwin.sura.net!cos!cos!bob1
- From: bob1@cos.com (Bob Blackshaw)
- Subject: Re: Flywheel batteries as EV power source
- Message-ID: <bob1.725144045@cos>
- Organization: Corporation for Open Systems
- 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> <72196@cup.portal.com>
- Date: Wed, 23 Dec 1992 20:54:05 GMT
- Lines: 36
-
- In <72196@cup.portal.com> lordSnooty@cup.portal.com (Andrew - Palfreyman) writes:
-
- >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 |
- > --------------------------------------------------------------------------
-
- If it is any help, the last issue of IEEE Spectrum was all about EVs. As
- I recall, there was an article on batteries which discussed work in
- progress on flywheel batteries. It might help the discussion to look
- it up.
-
- Bob
-