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(CNBC)   Turbines are getting bigger, and wind farms are getting larrrrrrrger   (cnbc.com) divider line
    More: Spiffy, Wind power, Windmill, Wind turbine, wind energy, average capacity of offshore turbines, big players, Renewable energy, long blades  
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713 clicks; posted to STEM » on 16 Apr 2021 at 10:25 AM (3 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



33 Comments     (+0 »)
View Voting Results: Smartest and Funniest
 
2021-04-16 9:55:04 AM  
Hear me now
Oh thou bleak and unbearable world,
Thou art base and debauched as can be;
And a knight with his banners all bravely unfurled
Now hurls down his gauntlet to thee!

/ I am I, Don Quixote
 
2021-04-16 10:27:35 AM  
WILL SOMEBODY *PLEASE* THINK OF THE POOR EAGLES!!

/s
 
2021-04-16 10:39:13 AM  
Fark user imageView Full Size
 
2021-04-16 10:46:58 AM  
Leon unavailable for comment.
i.imgflip.comView Full Size

Neither is Johnny.
 
2021-04-16 10:47:39 AM  

Autoerotic Defenestration: [Fark user image image 667x500]


Yes.

Still better than coal and oil.
 
2021-04-16 10:50:11 AM  

ArcadianRefugee: Autoerotic Defenestration: [Fark user image image 667x500]

Yes.


Or no.

https://blog.ucsusa.org/james-gignac/​w​ind-turbine-blades-recycling

/ still better than coal and oil
 
2021-04-16 10:58:14 AM  

Autoerotic Defenestration: [Fark user image image 667x500]


Did you think about that when you trashed your last car, or your last appliance, long before their useful life was over?

see, people like you are why we need so many wind farms--you use up too much farking energy.

"Using less" means USING LESS, and there's no ad or technological fix that can make it otherwise.
But keep trying.   we have about five years left to completely overhaul our views about EVERYTHING.

But I'm sure that the educated, overfed, cultured, intellectual elites of this  country can do it.  They've shown such a willingness to sacrifice for the good of the planet before.

Because they're so PROGRESSIVE.
And if saving the planet isn't progressive, then what the fark is progressive about you?   Your agenda is killing us, just like the other side.
 
2021-04-16 11:00:39 AM  
Blades 107 meters long. Holy fark! At this rate, we might run out of wind.
 
2021-04-16 11:02:21 AM  
Wind is so good, especially if you think of land use
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2021-04-16 11:16:22 AM  

Autoerotic Defenestration: [Fark user image 667x500]


cen.acs.orgView Full Size
 
2021-04-16 11:19:51 AM  

Pointy Tail of Satan: Blades 107 meters long. Holy fark! At this rate, we might run out of wind.


True insanity is when they start tethering blimps in the jet stream for power generation. +50 mph continuous winds at +30,000 feet. Doubt it will ever actually happen though.
 
2021-04-16 11:20:31 AM  
If I were the governor of a flat windy state in the middle of the country, I'd be pushing to get these things built in my state instead of whining about an oil pipeline.  Manufacturing these will provide more jobs long term jobs than the pipeline ever would.
 
2021-04-16 11:22:38 AM  

Pointy Tail of Satan: Blades 107 meters long. Holy fark! At this rate, we might run out of wind.


If all the blades are spinning the same direction, Earth could fly out of orbit.
 
2021-04-16 11:32:11 AM  
Too bad Texas hates wind. I'll bet they could build the biggest wind turbines around. Being bigger is their thing.
 
2021-04-16 11:57:05 AM  
"If you cannot transport the components to the site, you cannot build."

Seems like at some point of scale and expense, it will make sense to manufacture tower and blade components on site for inland wind farms.
 
2021-04-16 12:01:42 PM  

Muta: Pointy Tail of Satan: Blades 107 meters long. Holy fark! At this rate, we might run out of wind.

If all the blades are spinning the same direction, Earth could fly out of orbit.


Mmm, no.  The ones in the southern hemisphere turn backward!
 
2021-04-16 12:03:47 PM  

OldJames: Wind is so good, especially if you think of land use
[Fark user image 495x330]


Dunno... might give all the corn cancer...
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Won't someone please think of the sheep?
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/You can stop thinking about the sheep now.
 
2021-04-16 12:07:59 PM  
In the last few years, I have read many articles on cylindrical turbines. Proof of concept stuff is always relatively small scale, but they seem to show a lot of promise if they can scale up. I wonder if the empty spaces in a wind farm (the ones on solid ground, of course) could be populated with cylindrical turbines. I don't know enough about the spacing and interference issues presented, but people that are a lot smarter than I am get paid to plan those things.
 
2021-04-16 12:12:28 PM  

SansNeural: "If you cannot transport the components to the site, you cannot build."

Seems like at some point of scale and expense, it will make sense to manufacture tower and blade components on site for inland wind farms.


there's different breakpoints you hit a LONG time before "build a giant fiberglass factory in an empty field" becomes your economy of scale.
https://www.grousemountain.com/press_​r​eleases/36000-lbs-of-wind-turbine-blad​es-airlifted
 
2021-04-16 12:14:30 PM  

Muta: If I were the governor of a flat windy state in the middle of the country, I'd be pushing to get these things built in my state instead of whining about an oil pipeline.  Manufacturing these will provide more jobs long term jobs than the pipeline ever would.


Largest factory in Grand Forks, North Dakota:

Fark user imageView Full Size
 
2021-04-16 12:14:55 PM  

Al Tsheimers: In the last few years, I have read many articles on cylindrical turbines. Proof of concept stuff is always relatively small scale, but they seem to show a lot of promise if they can scale up. I wonder if the empty spaces in a wind farm (the ones on solid ground, of course) could be populated with cylindrical turbines. I don't know enough about the spacing and interference issues presented, but people that are a lot smarter than I am get paid to plan those things.


I've seen those.  Not super large ones though.  They take up a lot less space, but I suppose that the rest of the installation would be just as energy-intensive as windmills.
 
2021-04-16 12:18:16 PM  

Al Tsheimers: In the last few years, I have read many articles on cylindrical turbines. Proof of concept stuff is always relatively small scale, but they seem to show a lot of promise if they can scale up. I wonder if the empty spaces in a wind farm (the ones on solid ground, of course) could be populated with cylindrical turbines. I don't know enough about the spacing and interference issues presented, but people that are a lot smarter than I am get paid to plan those things.


So far traditional horizontal axis wind turbine (HAWT) designs still win for less weight, material used and mechanical complexity per power supplied.

Many physics aspects play into it but - just as an example - every vertical axis wind turbine (VAWT) design has some physical structure that is rotating back *into* the wind.  In contrast, every part the standard HAWT blades facing the wind have been designed to convert wind motion into mechanical rotation.
 
2021-04-16 12:18:57 PM  
Why no vertical-axis options? Seems you could put them where horizontal-axis windmills can't go and get more in a given area. Are they that less efficient to rule out?
 
2021-04-16 12:26:34 PM  

stamped human bacon: Why no vertical-axis options? Seems you could put them where horizontal-axis windmills can't go and get more in a given area. Are they that less efficient to rule out?


they dont scale up well.  the blade shapes arent the perfected structural model of a classic straight airfoil we've beat to death for decades and know how to build so well.  as you go bigger you end up with either heavier blades that are less efficient b/c you can't hollow them out as much, or thin blades that dont give as much power, or both.

also many small turbines is not the same as one large turbine.  remember most of your maintenance costs are in your generator.  having one giant wind turbine to maintain is so much easier on maintenance overhead than having 3 or 4 slightly smaller ones that still require the same maintenance schedule.  scattering tiny vertical wind turbines everywhere for spot power dies on this problem.  unless you have basically a "homeowner" level operator willing to maintain it you can't make it work.
 
2021-04-16 12:36:12 PM  

stamped human bacon: Why no vertical-axis options? Seems you could put them where horizontal-axis windmills can't go and get more in a given area. Are they that less efficient to rule out?


I'm not an aero-engineer, but my sister is (VP of Engineering at Boeing).  Her senior design project back in '86 was a Darius "eggbeater" type windmill.  She'd be in a better position to explain than me, but...

VAWT mills keep attracting interest, mainly because they can achieve a larger swept area in a smaller footprint than HAWTs.  Which looks really great when you compare two 10' tall mills (one HAWT and one VAWT) right next to each other.  But the stronger winds are higher up, so you've got to get the turbine way up there to make the best use of your footprint (on land).  When you start raising a large mass on the end of a longer stick... well other efficiencies besides aero start kicking in, as well as cost and material strength.

Maybe when some new super-strong/light-fiber composite material is invented VAWTs will become king?  Again, I'm not that type of engineer so I'll shut up now.
 
2021-04-16 12:49:29 PM  

oopsboom: they dont scale up well.


What you said.
 
2021-04-16 2:02:33 PM  
Monster wind turbines might expensive, and won't improve sound quality as much as you think.
 
2021-04-16 2:07:01 PM  
*might be
 
2021-04-16 5:28:24 PM  

OldJames: Wind is so good, especially if you think of land use
[Fark user image image 495x330]


Cool.  Now show land use around Chernobyl and Fukushima.
 
2021-04-16 6:32:05 PM  

SansNeural: stamped human bacon: Why no vertical-axis options? Seems you could put them where horizontal-axis windmills can't go and get more in a given area. Are they that less efficient to rule out?

I'm not an aero-engineer, but my sister is (VP of Engineering at Boeing).  Her senior design project back in '86 was a Darius "eggbeater" type windmill.  She'd be in a better position to explain than me, but...


The Darius "eggbeater" is aesthetically lovely and nearly silent, but has the disadvantage that it has to already be spinning in order to work.  So every time the wind dies down and picks up again, they would have to be re-started.
 
2021-04-16 9:26:43 PM  
How about some affordable housing?
Fark user imageView Full Size

Concepts for Reusing Composite Materials from Decommissioned Wind Turbine Blades in Affordable Housing
https://par.nsf.gov/servlets/purl/100​5​5345
 
2021-04-16 9:49:32 PM  

jagermurray: How about some affordable housing?
[Fark user image 661x660]
Concepts for Reusing Composite Materials from Decommissioned Wind Turbine Blades in Affordable Housing
https://par.nsf.gov/servlets/purl/1005​5345


Wouldn't the residents get awfully dizzy?
 
2021-04-17 10:24:03 AM  
Earlier this week I saw the Mt. Storm wind farm in West Virginia, which is 130+ turbines along a ridge of the Allegheny Mountains.  Quite impressive.
 
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