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shehan
User Rank
Gold
Re: Hybrid Mode with Windmill
shehan   4/29/2013 12:14:32 PM
NO RATINGS
@Mydesign – having small turbines on top of skyscrapers is a good idea; we need to use all sources of hybrid energy. We are still wasting a lot of natural resources. Solar panels and wind turbines are some of the best ways we could harvest the energy. 

shehan
User Rank
Gold
Re: for the birds
shehan   4/29/2013 12:11:43 PM
NO RATINGS
@NadineJ - I am sure there is a way to stop birds been sucked to the turbine. A simple solution I see is to have a mesh in front of the turbine, or probably a red flashing light to scare away the birds.

shehan
User Rank
Gold
Re: Wind keeps developing
shehan   4/29/2013 12:09:25 PM
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@Elizabeth – Impressive article, it's nice to see we are making use of the nature without finally destroying it. Renewable energy is what we need now as at the present situation we will very soon be short of fuel and other energy sources. 

Elizabeth M
User Rank
Blogger
Re: Where are the turbines in the picture?
Elizabeth M   4/29/2013 4:10:25 AM
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Indeed, Chuck, that is certainly true, and probably one of the best uses of the technology once safety issues are addressed.

Charles Murray
User Rank
Blogger
Re: Where are the turbines in the picture?
Charles Murray   4/26/2013 6:25:45 PM
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I do believe that the wind currents can also be tremendous between buildings, Liz. I know there have been cases where the low-prssure effects of wind currents between tall buildings have actually sucked glass panels from the exteriors of office buildings.

Elizabeth M
User Rank
Blogger
Re: Where are the turbines in the picture?
Elizabeth M   4/26/2013 5:51:11 AM
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Interesting, Chuck. I think this also is meant to be used up high on top of buildings as well, which I think I mentioned in the story. So it would be able to take advantage of the wind up there. Probably both the building and the PowerWINDows installation would both be moving, which I think the engineers would have to take into consideration when they install it.

Elizabeth M
User Rank
Blogger
Re: Concrete Canyons
Elizabeth M   4/26/2013 5:47:39 AM
NO RATINGS
That is something I didn't think of, DB, but that could be a really good use of this technology, considering how some streets are like wind tunnels. I had a lot of experience with this phenomenon when I lived in NYC. I'm not sure, however, where the best place would be to put the technology, though. Although I'm sure that could be worked out by much more intelligent people than me.

Elizabeth M
User Rank
Blogger
Re: Done before...
Elizabeth M   4/26/2013 5:30:54 AM
NO RATINGS
I didn't know about that pnadams, thanks for the information. I will do some research. As this PowerWINDows technology is still in its early stages, perhaps there is some twist on the technology that can make it work. I think it's too early to tell.

Charles Murray
User Rank
Blogger
Re: Where are the turbines in the picture?
Charles Murray   4/25/2013 9:11:31 PM
NO RATINGS
I agree that there seems to be more wind up high, William K. My information is purely anecdotal, but I was once up Chicago's Sears Tower (now called Willis Tower) and watched as a hanging ceiling fixture "swung" back and forth in an office on the 70th floor. It was explained to me that the hanging lamp often appeared to be swinging, when in fact it was not really moving at all. The truth was that the building was swaying and the hanging lamp was standing still. It takes quite a bit of wind to accomplish that. It probably doesn't prove much, but it's a good story, and it's true.

William K.
User Rank
Platinum
Re: Where are the turbines in the picture?
William K.   4/25/2013 6:59:21 PM
NO RATINGS
Debera, you are certainly correct that if there is no wind then there is no energy capture. But I have found that on many occasions there is more wind up a couple of hundred feet than there is at ground level, which would seem to be a special case of the coanda effect coupled with laminar flow theory. BUT if there really is no wind, then the wind turbines would indeed be useless and a waste of resources. A really cheap check, which would educate the public as well as provide good information, would be to hange streamers from the areas where the wind turbines are proposed to be installed. If the streamers were always flying then there is wind, but if the streamers were never flying then the wind is simply not there. Cheap instrumentation indeed.

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