Your Questions About Wind Turbine
David asks…
How to model wind turbine blades on Solidworks?
Building a small wind turbine for a school project and was wondering how to model the turbine blades on Solidworks. I was intending to make the blades out of pipe to give the curvature already.
admin answers:
I’m not sure about using Solidworks unless that is a requirement of your course. But if it isn’t the blades are simple to fabricate without any special drawings. Small diameter turbines don’t have any problem with vibration, gyroscopic and centrifugal forces that large blades suffer from. But because of the small area that is swept and the quick radius turns of a small diameter, it is better to use multiple blades that almost fill the disc area similar to water pumping farm windmills. With a small windmill you don’t have much area to get the mill moving, so multiple blades ( 8 or so) increases the starting forces
http://www.reuk.co.uk/PVC-Wind-Turbine-Blades.htm.
Susan asks…
How long does it take a wind turbine to pay for itself?
Just an average size wind turbine in a wind farm.
Managed to find the answer myself, The average wind farm in the UK will pay back the energy used in its manufacture within six to eight months, this compares favourably with coal or nuclear power stations, which take about six months.
admin answers:
Hi
The payback period depends on so many things i.e. Cost of windmill, realisation per unit sale of electricity, mode of financing, location etc.
So people have different views. Variation is too large 3 to 8 years.
You may like to refer to following –
http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=948
http://www.google.co.in/search?source=ig&hl=en&rlz=1G1GGLQ_ENIN358&q=payback+period+of+wind+turbine&btnG=Google+Search&meta=lr%3D&aq=f&oq=
Good luck.
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