Finding the right generator

[khabe]

Are there any other motors out there used in other applications which are low RPM
and require little force to turn them that can be used for a reasonable output generator?

Perhaps a washing machine or dryer motor or a treadmill or electric scooter type motor???

Not sure if these would work or not or if they are difficult to turn or not...

Any ideas?

thanks

No ideas until you have not gave more info about turbine(blades) you planned to use. Is it 3m diameter ... or half meter ... or you have no ideas at all
cheers,
khabe

[gyulasun]

Are there any other motors out there used in other applications which are low RPM
and require little force to turn them that can be used for a reasonable output generator?

Perhaps a washing machine or dryer motor or a treadmill or electric scooter type motor???

Not sure if these would work or not or if they are difficult to turn or not...

Any ideas?

thanks

Hi,

Just come across this link on a generator,  maybe useful for you: http://www.fieldlines.com/story/2008/11/27/211427/37

The video link is here:  http://www.youtube.com/watch?v=Axo8v37beM0   And he tests the output current when rotates the rotor by his hand: http://uk.youtube.com/watch?v=CzsD6iaLE0c

And see the same generator working as a pulse motor, pulsed by hand from an AA 1.5V dry battery:
http://uk.youtube.com/watch?v=IcR9V3umdJI

[khabe]

Yes - this is by principle correct made generator. You can see you dont need any "coils" - just WIREs between  magnetic field.
Right hand and left hand rules ... motor and generator effect ...
http://www.youtube.com/watch?v=9Zy0VHBXxLU
http://waowen.screaming.net/Maghandrules.htm
Faraday law - iron core motor
Lorentz Law - air core motor (ironless ...).
cheers,
khabe

PS:
Newman´s motor uses also  Lorentz Law, right hand rule  - but ... he does not use closed magnetic cheme, flux of rotor magnet stays "on the air" - there is no outer side magnets or flux returning ring (rotating steel or laminated stationary ...)

[pese]

. Please look at only like "coils" must to be placed. Please note - 6 pole machine, but actual magnets are too weak ... and just 6 poles - requests higher rpm ...
http://www.windstuffnow.com/3phasekit.pdf
But you can see how windings need to look like - and that there are no "coils" literally - just wires between magnetic flux!
Regards,
khabe

Attention (above PDF)
Correct the drawling on page 10.
The star rectifiering is wrong designed.
Gustav Pese

[khabe]

Attention (above PDF)
Correct the drawling on page 10.
The star rectifiering is wrong designed.
Gustav Pese

Hm? There is no different in rectifiers in principle when star or delta connected 3ph generator windings.
This guy just trying to show how to use two one phase full bridge rectifiers for three phase ...
Usually people dont use this kind of temporary means - ast least I do never and even do not heed attention ... correct or wrong ...
When now you forced me to look at ... by my opinion it works - it uses three pairs of diodes  +  -I<- ~ -I<- -  of total 4 pairs.
regards,
khabe