10W Mini V.A.W.T. by Four Seasons WInd Power

[gophomaxx]

Those thin knife/like blades do not seem to offer enough resistance to produce any amps even if a windstorm turned them. GE has produced a hoax!

[billmalta1]

SWEET!!!!

[gophomaxx]

Increasing resistance of the blades and decreasing the resistance in the gears by clutching the wind blades down or up when the wind speed varies would make it optimal efficient increeasing the amps the generator could produce if the generator was large enough to use the extra torque.

[gophomaxx]

Stacked pinwheels would add a variable factor for wind speed variations. If different pinwheels were engaged with the shaft to turn the turbine there would be enough to turn the generator without an increase in wind force.

[gophomaxx]

If the blades were shaped like a pinwheel and stacked on a veritcal axis there could be more output with a larger generator turned by the extra energy produced by the resitance of the blades. They could rotate independently according to ammount of wind blowing.

[RCvolunteer1978]

Great Idea I was thinking of the pinwheel for wind power but veritcal blades , the

90* turn could produce maybe 12% more power

[Killerme460]

so you could have it driving a car thermo fan motor the two wires going to charge controller to battery bank, then inverter to house appliances, ? I am going to make me one.

[nikos833]

Bella

[gophomaxx]

Different design in the blades of the wind catcher would allow more energy transfer and a larger generator could be turned with higher amperes produced.

[gophomaxx]

speed is not as important as the ammount of work done by the vanes. work is a function of resistance to speed.

[gophomaxx]

If the turbine increased resistence by increasing the area exposed to the wind they would be more efficient in transfering energy to the generator.

[gophomaxx]

Surface area of the vanes is proportional to the resistance to wind and amperes produced by generator. If there was more surface area in the vane then there could be a better generator with higher amperes output.

[fswturbines]

Correct. ....and we do offer much larger models. Your attention to detail is impeccable!

[tspine]

This is wrong.

You are confusing solidity with efficiency.

Think about this - a "turbine" that is completely solid would not even spin - nor would one with no blades. The optimal point will be somewhere in between at which the blades do not interfere with each other.

The optimal number of blades is a function of the tip speed ratio. Wikipedia it!

[WSBToulouse]

I like it. What is limiting the power output? I would expect 50-100W from the size of the VAWT. What is the noise level?

[fswturbines1]

There is a charge controller mounted in the pillar. We are working on getting more power output on the mini, but remember the unit is only a foot tall.