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poweron 5000 watt

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Posted by Grant Beuchel on August 5, 2003, 3:10 am
 
anybody know anything about this?  comments?
isnt three blades better?

http://www.energycaribbean.com/



Posted by Bill Kaszeta / Photovoltaic Re on August 6, 2003, 1:30 am
 


Basically no.  Some notes I took years ago at a renewable
energy conference indicated the following:

The more blades, the higher the air friction loss on the blades.

Single blades with a counter-weight have been used.

Power is mostly proportional to the swept area of the blades.

There are a lot of variables as I understand it, having to do
with efficiency, noise (and vibration), strength, rotating mass
response to changes in wind direction, cost, etc.

Bill Kaszeta
Photovoltaic Resources Int'l
Tempe  Arizona  USA
bill@kaszeta.org

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