HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Blog

Wind Turbines Coming to a City Near You

NO RATINGS
1 saves
View Comments: Oldest First|Newest First|Threaded View
<<  <  Page 2/6  >  >>
pnadams
User Rank
Iron
Re: Done before...
pnadams   4/25/2013 1:51:47 PM
NO RATINGS
Can you post a link or URL?

William K.
User Rank
Platinum
Where are the turbines in the picture?
William K.   4/25/2013 4:41:49 PM
NO RATINGS
If the wind turbine is a horizontal axis device that looks a bit like a centifugal blower, then it certainly would be much less visible, and it might be less efficient as well. But wind is free, it is only the ROI that pushes for capturing the very most energy possible, disregarding appearance end everything else. A horizontal axis barrel-shaped turbine could be supported on both ends, making the structure easier to design, and allowing for a simpler suport arrangement. In addition there is that very real effect of tall buildings channeling the wind into high speed jetstreams, which might be used to an advantage in this application. 

But the very biggest advantage would be that the energy is being recovered in the area where it is needed, which would reduce the transport costs a lot.

Debera Harward
User Rank
Silver
Re: Where are the turbines in the picture?
Debera Harward   4/25/2013 5:48:29 PM
NO RATINGS
William , Everything agreed but what i think is there will be one drawback i.e absence of wind,It wont be able to produce energy in the areas where there is no wind ,This technology is usefull for only places where there is lot of wind

Debera Harward
User Rank
Silver
Re: Where are the turbines in the picture?
Debera Harward   4/25/2013 5:48:35 PM
NO RATINGS
William , Everything agreed but what i think is there will be one drawback i.e absence of wind,It wont be able to produce energy in the areas where there is no wind ,This technology is usefull for only places where there is lot of wind

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.

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.

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.

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: Where are the turbines in the picture?
Elizabeth M   4/26/2013 5:51:11 AM
NO RATINGS
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.

Charles Murray
User Rank
Blogger
Re: Where are the turbines in the picture?
Charles Murray   4/26/2013 6:25:45 PM
NO RATINGS
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.

<<  <  Page 2/6  >  >>
Partner Zone
More Blogs
Researchers in Canada have developed a chin strap that harvests energy from chewing and can potentially power a digital earplug that can provide both protection and communication capabilities.
In case you haven't heard, the deadline to enter the 2014 Golden Mousetrap Awards is coming up fast – Oct. 28! Have you entered yet?
Enabling the Future is designing prosthetic appendages modeled more like superhero arms and hands than your average static artificial limbs. And they’re doing it through a website and grassroots movement inspired by two men’s design and creation in 2012 of a metal prosthetic for a child in South Africa.
In order to keep an enterprise truly safe from hackers, cyber security has to go all the way down to the device level. Icon Labs is making the point that security has to be built into device components.
Three days after NASA's MAVEN probe reached Mars, India's Mangalyaan probe went into orbit around the red planet. India's first interplanetary mission, and the first successful Mars probe launched by an Asian nation, has a total project cost of nearly $600 million less than MAVEN's.
Design News Webinar Series
9/25/2014 11:00 a.m. California / 2:00 p.m. New York
9/10/2014 11:00 a.m. California / 2:00 p.m. New York
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 20 - 24, How to Design & Build an Embedded Web Server: An Embedded TCP/IP Tutorial
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: October 2
Sponsored by Altera
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service