Re: [Biofuel] Flywheel 'batteries'

I don't remember flywheel buses in Vancouver - Ballard hydrogen fuel cell buses with electric regenerative braking, yes, but no flywheel energy storage system. There were flywheel buses in Switzerland at one time. Do a search for oerlikon gyrobus. Darryl McMahon Mika Feldmann <[EMAIL PROTECT

Re: [Biofuel] Flywheel 'batteries'

Well - it IS nice to kick over a hornet's nest, from time to time... I like this table (posted earlier): Table 12.1 Energy-storage data. Maximum energy-storage capability of various materials W-hr/lbm kJ/kgMaterial 14,900 118,250 Hydrogen 5,85046,430 Ga

Re: [Biofuel] Flywheel 'Batteries'

, September 01, 2005 11:51 AM To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] Flywheel 'Batteries'   Has anybody used the product from this company before ?   http://www.foreverflashlights.com/dynamo_flashlight.htm   I have something similar, but it does no

Re: [Biofuel] Flywheel 'batteries'

: Thursday, September 01, 2005 10:58 AM To: Biofuel@sustainablelists.org Subject: Re: [Biofuel] Flywheel 'batteries'   I was imagining a LARGE flywheel, perhaps made from concrete with the axis pointed to the ground and the shaft sitting inside a cylinder filled with water or oil (wit

Re: [Biofuel] Flywheel 'Batteries'

Has anybody used the product from this company before ?   http://www.foreverflashlights.com/dynamo_flashlight.htm   I have something similar, but it does not have any charging capability like this one does.   Myk__Do You Yahoo!?Tired of spam? Yahoo!

Re: [Biofuel] Flywheel 'batteries'

Sorry folks for the SPAM tag on the subject of the last mail. Its false positive from my spamfilter :) -- Tomas Juknevicius ___ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainable

Re: [Biofuel] Flywheel 'batteries'

I was imagining a LARGE flywheel, perhaps made from concrete with the axis pointed to the ground and the shaft sitting inside a cylinder filled with water or oil (with maybe an oring seal). The hydraulic pressure keeps the flywheel suspended in it's vertical position and provides a low friction s

Re: [Biofuel] Flywheel 'batteries'

I didn't want to be picky. I just wanted to comprehend. No sense readin' all this unless I'm going to bother understanding it. Joe wrote: Ok how about inertial forces due to gyroscopic precession? ___ Biofuel mailing list Biofuel@sustainablelists.org

Re: [Biofuel] Flywheel 'batteries'

Ok how about inertial forces due to gyroscopic precession? In any case there was a lot of energy stored up in the spinning vanes and motor. It was lucky nobody was in the way when the pump flew across the room tearing off the motor power cable and roughing pump line in the process. Joe Ken D

Re: [Biofuel] Flywheel 'batteries'

Could one replace "precession forces" with inertia? I've never heard the term precession force. On 9/1/05, Joe Street < [EMAIL PROTECTED]> wrote: He turned it sideways and the precession forces crashed the bearing. That pump didn't stay in his hand for long.. Joe

Re: [Biofuel] Flywheel 'batteries'

Not if it is horizontal.  Maglev (magnetically levitated bearings)  aren't affected regardless of flywheel orientation so long as you don't suddenly over do it and crash them.  I saw a sales rep with a cavalier attitude demonstrating a small maglev turbomolecular pump one time.  It was spinning

Re: [Biofuel] Flywheel 'batteries'

this energy to be stored? How would you make use of it?   Regards, Emil   -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tony DeCarmine Sent: Wednesday, August 31, 2005 11:37 PM To: Biofuel@sustainablelists.org Subject: [Biofuel] Flywheel '

Re: [Biofuel] Flywheel 'batteries'

Flywheel was also mentioned in the book, which I forgot to add but is now regarding the air car post. Bicycling Science by MIT Press c1982 Chapter 12 - Energy-storage bicycles Table 12.1 Energy-storage data. Maximum energy-storage capability of various materials W-hr/lbm kJ/kg

Re: [Biofuel] Flywheel 'batteries'

I once heard that flywheels were used on busses in Vancouver, BC area a few years ago.  When the brakes were applied, the mechanical energy was applied to the acceleration of a flywheel, which was later, after the bus stop, applied to the wheels again. Tony DeCarmine <[EMAIL PROTECTED]> wrote: Even

Re: [Biofuel] Flywheel 'batteries'

If you're running a huge fixed flywheel for hours or days at a time, doesn't precession become an issue? Even with vacuum containment etc, don't the bearing get creamed by the lateral forces? taryn On Aug 31, 2005, at 11:37 PM, Tony DeCarmine wrote: > Evening, all - > > J

[Biofuel] Flywheel 'batteries'

Evening, all - Jerry wrote - I really like the idea of flywheels as opposed to batteries for wind/solar storage, I'm suprised no one has mentioned them yet. Flywheels are another painfully efficient old technology, still in use today in your typical piston engine for load leveling. It's just th