This was a very successful project, I used an off the shelf 3 bladed propeller, beautifully balanced and extremely strong, made from glass filled nylon, they are designed as ‘pusher’ props and can spin at up to an amazing 13 000 rpm when driven by a radio control plane engine. I suspect just 1500 rpm [...]
The aluminum vanes are constructed from a building flashing roll utilizing the pre-existing bend of the roll in construction. Two 16 ” sections are riveted together to make one vane. The vanes clip on the spokes of the bicycle wheel using a “bent nail” and a bend in the vane. Detailed pictures will be provided [...]
Power: 2000 Watts @ 30 mph+ Voltage: 24, 36, or 48 Volt DC operation (specify), 150 Volt, 240 Volt DC, for running AC grid-tie inverters, available at no extra charge.
Diameter = 10 feet or 12 feet Length = 13 feet+ Cut-in speed 7 mph
Overspeed Protection: Side-furling using inclined tail pivot
Components: Frame with generator and yaw [...]
An easy 200 watts in about a 20 mph wind or so, lighting the four 50 watt car
headlight bulbs you see at Doug’s feet. We get much more power than this in
higher winds. This kind of power output is unheard of for an 18″ diameter
horizontal axis windmill! – the secret? Multi-Rotor technology, made possible
by the [...]
1. A generator
2. Blades
3. A mounting that keeps it turned into the wind
4. A tower to get it up into the wind
5. Batteries and an electronic control system
………..
When used as generators, motors generally have to be driven far faster than their rated speed to produce anything near their rated voltage. So what you are [...]
This alternator uses rotating magnets and a fixed stator with handwound 3 phase coils. This design is applicable to wind, water, engine, even human and animal power.
1000 watt wind turbine to help charge the battery bank that powers our offgrid home. It’s a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed [...]
Wind power is another alternative energy source that could be used without producing by-products that are harmful to nature. Like solar power, harnessing the wind is highly dependent upon weather and location. The average wind velocity of Earth is around 9 m/sec. And the power that could be produced when a wind mill is facing [...]
Robert Green
has an an and the following is the details he has forward to me at this time. It has communicating sails that open and close to produce two shapes. One is a scoop and the other is a wing. The wing not only reduces drag in the advancing sail, but also contributes lift at [...]