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[The Verge] These bladeless wind turbines shake to generate electricity - Page 3

post #21 of 38
I'd imagine these would be useful to gather energy near railroad vibrations and other such places

I don't see them being very efficient in areas where there is high wind
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post #22 of 38
Quote:
Originally Posted by SpykeZ View Post

Some went up by my old boss and she hated them. Could hear the woosh sound, then when the sun was setting they'd get really annoying shadows in the entire house and one year almost killed someone by chucking a huge chunk of ice, went through someones windshield that was coming up the road.
Wow, I didn't realize they were so bad. I figured they would be really annoying, but living near them is probably pretty unliveable. I wouldn't really know, practically all the power in my area is hydro. I totally forgot about the shadow problem. The noise would probably drive me nuts though.
post #23 of 38
I doubt this has anything to do with birds, these are probably cheaper to maintain than the kind with blades on them. You just have to put a "for nature" spin on it to get people to let you put them around where they live.
post #24 of 38






I like all of these simpler ideas, honestly. Wind turbines are fun and all but they're too damn expensive.
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post #25 of 38
Quote:
Originally Posted by 47 Knucklehead View Post

I'm sorry, these things are dumb. Vibrating items like this is only going to cause metal fatigue and lower their lifespan and increase maintenance costs...

It's not like they can't design these to take the flexing without metal fatigue. Wind turbine blades flex to cut weight and reduce metal fatigue. The same is true of truck trailers, especially the aluminum ones, the hulls of container ships, bridges, skyscrapers, airplane wings, helicopter rotors, etc.
     
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post #26 of 38
Quote:
Originally Posted by Lady Fitzgerald View Post

It's not like they can't design these to take the flexing without metal fatigue. Wind turbine blades flex to cut weight and reduce metal fatigue. The same is true of truck trailers, especially the aluminum ones, the hulls of container ships, bridges, skyscrapers, airplane wings, helicopter rotors, etc.

Shhhh. This is OCN, basic engineering doesn't happen here. It's measured in nanometers or it's nothing.
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post #27 of 38
Quote:
Originally Posted by Ganf View Post

Quote:
Originally Posted by Lady Fitzgerald View Post

It's not like they can't design these to take the flexing without metal fatigue. Wind turbine blades flex to cut weight and reduce metal fatigue. The same is true of truck trailers, especially the aluminum ones, the hulls of container ships, bridges, skyscrapers, airplane wings, helicopter rotors, etc.

Shhhh. This is OCN, basic engineering doesn't happen here. It's measured in nanometers or it's nothing.

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post #28 of 38
Quote:
Originally Posted by Lady Fitzgerald View Post

It's not like they can't design these to take the flexing without metal fatigue. Wind turbine blades flex to cut weight and reduce metal fatigue. The same is true of truck trailers, especially the aluminum ones, the hulls of container ships, bridges, skyscrapers, airplane wings, helicopter rotors, etc.

Sometimes designing for 90% reliability is much more cost effective than designing for 99% reliability. Sure, transportation needs to be designed for 99.9999% reliability or we'd be seeing crashes in the news every day for a plane that's only 99% reliable. But for something that's stationary, takes up a large area of land to be effective, and drives down land prices around it? Probably not worth it.

And this whole vibrating thing just looks like piezoelectric components on a much grander scale.
post #29 of 38
Hmm... well they generate 30% less, but are cheaper and less maintenance.... 40% cheaper wind energy sounds like a win to me. Who cares about birds, that's just efficiency. I do wonder about their energy ratios tho..... Remember it is pulling energy out of the wind and converting it to electricity. Taking the energy out of the wind (basically blocking \ slowing) does cause ecological damage... how much... i dono.
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post #30 of 38
i had no idea we had so many engineers on overclock.net
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