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Forum Index : Windmills : just another dumb question
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azcity Newbie ![]() Joined: 31/03/2007 Location: United StatesPosts: 9 |
Increasing rpm via larger to smaller pulley. Why is it not done on small units? I understand that the use of bearings and a belt increase the amount of torque needed to turn the windmill to start it but if you were using a 1 to 3 ratio ( number out of the air) in higher winds of say 15 mph wouldn't the extra speed of the generator produce twice as much power? |
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vasi![]() Guru ![]() Joined: 23/03/2007 Location: RomaniaPosts: 1697 |
If we wait for higher winds, our batteries can be in danger. We don't have higher winds all the time, and we are connected mainly to batteries, not to windmill. Hobbit name: Togo Toadfoot of Frogmorton Elvish name: Mablung Miriel Beyound Arduino Lang |
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wind-pirate![]() Senior Member ![]() Joined: 01/02/2007 Location: CanadaPosts: 101 |
Great idea!! If you are using a large turbine "blades" and lots of wind. Low winds have little to no power, so you must use the most efficent turbine you can make. If you used belt(s)to drive your generator you will need a great amount of wind just to get it to turn. "Belts need about 15 percent of the wind power just to get them to moving". If you live in windy area then it would not matter that much. THE Pirate. stealing wind & solar energy is fun |
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vasi![]() Guru ![]() Joined: 23/03/2007 Location: RomaniaPosts: 1697 |
Here is Arizona Wind Power http://www.eere.energy.gov/windandhydro/windpoweringamerica/ images/windmaps/az_50m_800.jpg Or start from here http://www.windenergy.com/united_states_frame.htm Hobbit name: Togo Toadfoot of Frogmorton Elvish name: Mablung Miriel Beyound Arduino Lang |
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