PPPM - With Two Generators

We hook up two generators to the PPPM
to determine if maximum power output can be
increased. Lots more at: http://www.los-gatos.ca.us/davidbu/pedgen.html

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Howto & Style

Tags:

• power
• pedal
• generator
• off-grid
• science
• amps
• watts
• volts
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• exercise
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• physics

[einsteinian]

and what was the determination?  I didnt hear anything but 265...

[mjnesbitt]

One generator is fine for normal workouts - but not for sprints (the drive wheel starts slipping)>

Two generators is slightly less efficient (twice the motor resistance losses, twice the motor bearing losses, twice the roller friction losses - and yet in a SPRINT, the overall power output of the PPPM is essentially doubled. While roller slip limits a single generator to 130-150 watts, the total achieved with TWO generators was 265 watts. With twice the effort, of course!

[enemyindisguise]

good morning ! 2007 is now!

this demo is from 1930 ..or?

[mjnesbitt]

It may seem old fashioned to you. It's called "exercise." We still do it in 2007. Well, some of us do.

[Ilovehotdogs23456]

boring

[mjnesbitt]

Love your username. He he. Go have another.

[einsteinian]

Also wouldnt this design benifit greatly from gears? Lastly I watched all the videos but never saw the actual design of the motor-wheel-battery design, any chance I can get a close up of the actual workings?

[einsteinian]

great thanks for the reply, the outcome was about as I had assumed. twice the effort, roughly twice the outcome. I had the same Idead when thinking of one of these about the flywheel. My next question is do you think you would benifit from a substantially heavier flywheel? Possibly only adding a few weights in key spots of the rotation to your current design.