Topic: Windmill Blade Design Efficiency
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Answers to Common Questions
What is the efficient angle on a windmill blades?
5 degrees, but be careful if you have too much wind converted to 15 Read More »
Source: http://wiki.answers.com/Q/What_is_the_efficient_angle_on_a_windmi...
What type of windmill blade works the best and is the most energy...
A flat one Read More »
Source: http://answers.yahoo.com/question/index?qid=20070915201108AAZ2cYQ
What is the most efficient blade design for a Vane Axial fan?
The short answer is one with the highest lift to drag ratio. The long answer requires a fan design analysis based on the aerodynamic environment and desired performance. The airfoil leading edge and trailing edges should align with the lo... Read More »
Source: http://en.allexperts.com/q/Aeronautical-Engineering-1809/2011/5/A...
More Common Questions
Answers to Other Common Questions
It's actually not (just) efficiency that causes most wind turbines to only have 3 blades instead of 6 or 10 or such. Increasing the number of blades does increase the aerodynamic efficiency, but the increase gets smaller each time. For inst...
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Source: http://answers.yahoo.com/question/index?qid=20090915200718AAjx9qm
Location has a huge impact on this. Ie what parameters of windspeed is the turbine going to be used at. So while larger blades can harness more energy they also require more energy to simply move them to start with, making them useless in l...
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Source: http://uk.answers.yahoo.com/question/index?qid=20110306220303AA9r...
It's all to do with the way air acts. The three winged generators have enough space between them to stop the wind from creating 'eddys' when passing through. If there were more wings, the disturbed air from one wing would cause drag on the ...
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Source: http://www.answerbag.com/q_view/146391
Personally I like the old farmer style ones, I had one made of sheet metal, it was quite hardy and even after some brutal damage from the whole windmill falling over is still worked, I'll dig a photo out of it. If you want something interes...
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Source: http://www.instructables.com/answers/Whats-the-best-design-for-a-...
Design and construct a wind tunnel for testing airfoil shapes. •
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Source: http://www.autopenhosting.org/ScienzFair/engineer.htm
Research and demonstrate the Bernoulli principle. •
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Source: http://www.autopenhosting.org/ScienzFair/physics.htm
