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Posted by Michael B on March 15, 2009, 8:33 pm
 
Get over it.
It's the most practical device for the urban setting, with its
multiple obstructions and multidirectional winds.

wrote:


Posted by vaughn on March 15, 2009, 9:15 pm
 


Proof?  ...or just hot air?






Posted by Michael B on March 15, 2009, 11:11 pm
 wrote:

Ya know, this may surprise you, but I'm gonna let you decide...

Urban setting has very few optimum locations for classic wind
generators.

It's damned difficult to compete with Reddy Kilowatt.

So the device needs to be the least expensive for its output.

Eliminating a tower cuts the price in half.

Having a lift-based unit lets it get closer to optimum efficiency.
The photos looked like it was an airfoil-style unit, even though
one of the comments suggested that it was a drag-style unit.
But that may have just been because that poster was used to
seeing only Savonius-style devices when thinking about VAWT's.
And indeed, most drag-style units have failed the market test,
probably because of the poor speed/output relationships. Also,
the available power generating devices are looking for higher
rotation speeds.

But the device in the article could have some viability, IMO.
Even though it is overpriced for what it does. C'mon, it's not like
I'm going to endorse a 1.5 kW unit that costs ten dollars a watt.

So I make the same observation as before. In the urban setting,
it's the most practical device, with the multiple obstructions (with
the resultant turbulence and multidirectional winds). It's up to you
to decide to share this opinion or not. If you do, that's fine. If
you
don't, and want to tell me why, I would certainly invite it.
Alternatives
would certainly be considered.

Because, frankly, I'm in an urban location, the wife wants me to
put something up that will at least make lights come on when we
lose power and have some wind coming by, and I'm not about to
be willing to pull maintenance on a generator head that's 50 feet
above our roof. And she doesn't buy my suggestions about having
a good stock of oil-burning lamps on hand, even though she's
willing to do that as long as we have a wind turbine, too. One that
I've made instead of getting a packaged unit. So far, I'm just
looking.



Posted by vaughn on March 16, 2009, 12:40 am
 

Hot air.  No point in reading further.

Thanks for playing.

Vaughn





Urban setting has very few optimum locations for classic wind
generators.

It's damned difficult to compete with Reddy Kilowatt.

So the device needs to be the least expensive for its output.

Eliminating a tower cuts the price in half.

Having a lift-based unit lets it get closer to optimum efficiency.
The photos looked like it was an airfoil-style unit, even though
one of the comments suggested that it was a drag-style unit.
But that may have just been because that poster was used to
seeing only Savonius-style devices when thinking about VAWT's.
And indeed, most drag-style units have failed the market test,
probably because of the poor speed/output relationships. Also,
the available power generating devices are looking for higher
rotation speeds.

But the device in the article could have some viability, IMO.
Even though it is overpriced for what it does. C'mon, it's not like
I'm going to endorse a 1.5 kW unit that costs ten dollars a watt.

So I make the same observation as before. In the urban setting,
it's the most practical device, with the multiple obstructions (with
the resultant turbulence and multidirectional winds). It's up to you
to decide to share this opinion or not. If you do, that's fine. If
you
don't, and want to tell me why, I would certainly invite it.
Alternatives
would certainly be considered.

Because, frankly, I'm in an urban location, the wife wants me to
put something up that will at least make lights come on when we
lose power and have some wind coming by, and I'm not about to
be willing to pull maintenance on a generator head that's 50 feet
above our roof. And she doesn't buy my suggestions about having
a good stock of oil-burning lamps on hand, even though she's
willing to do that as long as we have a wind turbine, too. One that
I've made instead of getting a packaged unit. So far, I'm just
looking.




Posted by Eeyore on March 16, 2009, 2:37 am
 

Michael B wrote:


Utter nonsense. They can also do structural damage to buildings. Please don't
top post either.

Graham


power on account of > inadequate height


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