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- Xref: sparky sci.electronics:21375 sci.energy:6352 rec.autos.tech:17062
- Path: sparky!uunet!psinntp!ncrlnk!ncratl!mwilson
- From: mwilson@ncratl.AtlantaGA.NCR.COM (Mark Wilson)
- Newsgroups: sci.electronics,sci.energy,rec.autos.tech
- Subject: Re: Flywheel batteries as EV power source
- Message-ID: <78566@ncratl.AtlantaGA.NCR.COM>
- Date: 22 Dec 92 14:37:40 GMT
- References: <1992Dec16.192456.6261@news.cs.brandeis.edu> <1992Dec16.232521.14672@mtu.edu>,<71918@cup.portal.com> <1h2udfINNfm0@gap.caltech.edu> <72182@cup.portal.com>
- Organization: NCR Engineering and Manufacturing Atlanta -- Atlanta, GA
- Lines: 29
-
- In <72182@cup.portal.com> Ted_Eugene_Viens@cup.portal.com writes:
-
- |Sorry, Carl. But this description of a lightweight composite Flywheel Battery
- |comes from A cutaway drawing by some manufacturer in the last issue of Popular
- |Science. It clearly demonstrated a central metal axle shaft, the composite
- |flywheel, and the coils for electric power transfer. Unfortunately I have neve
- |r
- |obtained a CRC Physical Sciences reference book and I am a bit weak on various
- |heats of melting and vaporization. Some crude calculations showed that to go
- |600 miles at 60 mph might take some 100 to 400 MegaJoules. Nothing to snitch a
- |t
- |I agree. However this would be non-stop driving. which is contrary to the
- |intended use of these vehicles in stop and go city driving. What reduction
- |factor would be introduced by regenerative braking?
-
- I would say none. If the regenerative breaks are 100% efficient, then you
- will merely recover all of the kinetic energy resident in the car.
-
- |Still, I return to my original opening remark. I have some faith in the engine
- |ers
- |responsible for designing Flywheel Batteries...
-
- Your faith is touching. Do you apply the same amount of faith to everyone
- who tries to sell you something.
- --
- Mob rule doesn't become any prettier, just because the mob start to call itself
- a government.
- It ain't charity if you are using someone else's money.
- Mark.Wilson@AtlantaGA.NCR.com
-