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- Xref: sparky sci.electronics:21000 sci.energy:6207 rec.autos.tech:16824
- Path: sparky!uunet!olivea!decwrl!adobe!pngai
- From: pngai@adobe.com (Phil Ngai)
- Newsgroups: sci.electronics,sci.energy,rec.autos.tech
- Subject: Re: Flywheel batteries as EV power source
- Message-ID: <1992Dec17.173946.5374@adobe.com>
- Date: 17 Dec 92 17:39:46 GMT
- References: <1992Dec16.192456.6261@news.cs.brandeis.edu> <1goebdINNik@gap.caltech.edu> <BzE2oz.I4H@ns1.nodak.edu>
- Sender: usenet@adobe.com (USENET NEWS)
- Organization: Adobe Systems Incorporated
- Lines: 28
-
- In article <BzE2oz.I4H@ns1.nodak.edu> csmith@plains.NoDak.edu (Carl Smith) writes:
- >I am not going to argue the above point, but consider this. If you are
- >going to measure danger by the amount of stored energy, then which is
- >more dangerous when it explodes? A flywheel that has enough energy to
- >move a car 100 miles at freeway speeds, or a tank of gasoline with enough
- >energy to move a car at greater-than-highway speeds for 300 miles?
-
- It depends on how fast you release the energy. A damaged flywheel will
- release all its energy at once. A tank of gasoline by itself will not
- explode in a collision, despite what you see in the movies.
-
- Why don't you go buy a gallon of gasoline in a metal container, take it
- as high up as you want, and drop it. It will not explode. It might
- splatter, but it will not explode.
-
- You can also try shooting it with a rifle or whatever. I have.
- It's pretty boring.
-
- >>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.
- >
- >Why bother, we don't wrap our gas tanks in a container that would contain
- >their explosion?
-
- Because gas tanks don't explode. Movies are not reality.
-
- --
- My opinions are my own.
-