12 inch aluminium magnet rotors

[boblaporte]

Hello,

Has someone in the group that has  results or opinions on using  aluminium for the stators to reduce weight. I am interested in the construction of the 10 foot wind system from Hugh Piggott. I have an 32 ft aluminium city light post that i will use as a post. It was damage froma car accident.I have cut out the bottom tube section and will re-weld  a new bottom  end with a hinge sytem. I tought using aluminium for the stator would not rust with the years ! Would this affect the speed on the blades,

Thak<s

bob

 

[wooferhound]

The title says 12 inch magnet Rotors

The story talks about aluminum Stators

Don't use Aluminum for any of these two uses . . .

Aluminum in the magnet Rotors will not allow a complete magnetic Circuit which will reduce your potential output Voltage.

Aluminum in the Stator will cause Eddy Currents which will make so much drag that you will never make much power.

[DanB]

Hi Bob -

yes - as woofer said, it'd be bad in both places.  You need steel behind the magnets (fairly thick steel) and you dont want aluminum in the stator for sure.

Curious about your user ID...  no chance you're in LaPorte Colorado is there?

[beepipes]

Or would that be LaPorte, Indiana?

Regards,

Pat

[GerryS]

States with a city called Laporte:  Colorado, Indiana, Michigan, Montana, Ohio, Pennsylvania.