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- Xref: sparky sci.electronics:21412 sci.energy:6368 rec.autos.tech:17075
- Path: sparky!uunet!newsflash.concordia.ca!mizar.cc.umanitoba.ca!access.usask.ca!skorpio!choy
- From: choy@skorpio.usask.ca (I am a terminator.)
- Newsgroups: sci.electronics,sci.energy,rec.autos.tech
- Subject: Re: Flywheel batteries as EV power source
- Date: 22 Dec 1992 19:41:38 GMT
- Organization: University of Saskatchewan, Saskatoon, Canada
- Lines: 41
- Sender: choy@skorpio (I am a terminator.)
- Distribution: world
- Message-ID: <1h7r1iINNqo5@access.usask.ca>
- 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>
- NNTP-Posting-Host: skorpio.usask.ca
-
- In article <1goebdINNik@gap.caltech.edu>, carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick) writes:
- |> Er, the amount of energy that escapes is exactly the amount of energy you
- |> started with. Law of conservation of energy comes into play. All the energy
- |> from the flywheel will have been converted into these other forms, as you point
- |> out. That doesn't mean we can ignore it. True, we're not likely to be talking
- |> about hypersonic bits of the flywheel. But enough energy to move that vehicle
- |> on the order of 100 miles at freeway speeds is still around there someplace.
- |> It didn't just vanish. And that's a LOT of energy. And it got dumped FAST.
- |>
- |> In other words: BOOM!
-
- |> Unless you wrap the flywheel in a massive enough container that it can absorb
- |> all that energy without vaporizing, you're going to have an explosion.
-
- The particles will fly off linearly, but what if the housing surrounding the
- flywheel was turning? Then the breaking flywheel may just cause the housing
- to turn faster. The flywheel particle momentum is lost with a less
- forceful impact (prolonged impact) because the turning housing is moving at
- a lower speed relative to the flywheel particles (which in turn move at a
- lower speed relative to the housing). It's a flywheel inside a flywheel inside
- a flywheel.
-
- What has four wheels and flies?
-
- --
-
- Henry Choy
- choy@cs.usask.ca
-
- Hey kids, start jumping up and down like idiots.
-
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-
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-
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- Rolls over your neighbor's dog.
- It's good for a snack. It fits on your back.
- It's LOG LOG LOG!!!!"
-
- -- Ren * Stimpy
-