Re: Questions about size of magnetic wire to use

On 21 Oct 2005 14:00:16 -0700, ewitte@xxxxxxxxxxx wrote:

>I'm not actually talking about wind. They have 100hp AC induction
>motors for $200 on ebay (probably plus a ton of shipping) and they are
>seriously nowhere near the size your talking about. Probably 1/4 the
>size of a car and they put out a ton more than I need. I see people
>all the time getting ~ 1kw or so with smaller designs. For instance
>the site I linked to they have a larger 12" version that can get 700
>watts or so at under 600RPM. I'm looking at closer to 1500RPM.
>

You might easily build an alternator that size, but the means to drive
it with wind power? I seriously doubt that a 12" wheel is going to
catch enough wind. 700 watts is over one horsepower. Even a 1/3 hp
fan is a pretty big deal, for the motor and size of the blades to use
that much energy.

Ok here's a few induction motors 1 hp single phase - 42 pounds
1 hp single phase 32 pounds, 3/4 horse, 25 pounds, all about 9.9"
X6.5"

The 600 watt wind power generator with the 6.5 foot blades and 14 AWG
wire and two sets of real magnets is believable. 800 watts peak

Now if you're talking about the double rotor one with the 6.5 foot
blades - I believe that can make some power. And its a far cry from
the demonstrator you're talking about and still one sixth to one tenth
of the size you'd need for 5 killowatts. And he's talking about
serious wind to power it to that level.

I live on the coast and see winds of >30 mph maybe 20 days a year.

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