Artificial Wind to Move away Urban Air Pollution
Artificial Wind to Move away Urban Air Pollution
(OP)
Hi everybody,
I don't know is here a proper place for this thread, but let me a try!
These days we hear (due to cold weather in northern hemisphere), that some cities challenge polluted environment. I thought, for ages, that what about generating with, say, spreading crashed "white" stones in one side of the city and "black" ones on the other side. Then by shining sun over these areas, we have different temperature in two opposite area, that eventually generate wind, in an "artificial natural" way.
What's your opinion?
I don't know is here a proper place for this thread, but let me a try!
These days we hear (due to cold weather in northern hemisphere), that some cities challenge polluted environment. I thought, for ages, that what about generating with, say, spreading crashed "white" stones in one side of the city and "black" ones on the other side. Then by shining sun over these areas, we have different temperature in two opposite area, that eventually generate wind, in an "artificial natural" way.
What's your opinion?
RE: Artificial Wind to Move away Urban Air Pollution
Instead of black stones, perhaps a solar PV farm (more than 80% of the sunlight ends up as heat) or a power station? Maybe you could keep all the traffic on one side of the city?
je suis charlie
RE: Artificial Wind to Move away Urban Air Pollution
RE: Artificial Wind to Move away Urban Air Pollution
TTFN
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RE: Artificial Wind to Move away Urban Air Pollution
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
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To an Engineer, the glass is twice as big as it needs to be.
RE: Artificial Wind to Move away Urban Air Pollution
It is better to have enough ideas for some of them to be wrong, than to be always right by having no ideas at all.
RE: Artificial Wind to Move away Urban Air Pollution
I considered the Santa Anas, but they don't really do much except to store it offshore until the winds die down. And, it takes a thermal system about 200 miles across to generate the Santa Ana winds. Crank the math on that, and you're looking nuclear bomb scale energy levels.
So, it takes a boatload of energy, pisses off other people, and doesn't eliminate the smog, just moves it somewhere else.
TTFN
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RE: Artificial Wind to Move away Urban Air Pollution
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Artificial Wind to Move away Urban Air Pollution
A.
RE: Artificial Wind to Move away Urban Air Pollution
The guy with the landing strip in the white rocks would probably jack up the landing fee. But he'll die of emphyzema in a few years so it's no big deal.
Hmmm How would I get my glider back to the other side? Trailer it back through traffic?
Maybe the rocks could be painted black on one side and white on the other. Flip all of the rocks over and the thermals will lift me back over to the other side of town!
STF
RE: Artificial Wind to Move away Urban Air Pollution
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Artificial Wind to Move away Urban Air Pollution
RE: Artificial Wind to Move away Urban Air Pollution
http://www.plm.automation.siemens.com/en_us/produc...
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: Artificial Wind to Move away Urban Air Pollution
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The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.
RE: Artificial Wind to Move away Urban Air Pollution
RE: Artificial Wind to Move away Urban Air Pollution
https://en.wikipedia.org/wiki/Gay%E2%80%93Lussac_l...
https://en.wikipedia.org/wiki/Combined_gas_law
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Artificial Wind to Move away Urban Air Pollution
RE: Artificial Wind to Move away Urban Air Pollution
https://en.wikipedia.org/wiki/Solar_updraft_tower
Unfortunately, a lot of this solar stuff predicates itself on land being cheap. That's not usually the case near cities.
Roof solar collectors work because you're just using the space you already have. Most solar farms find themselves hundreds of miles away from the point of use where land is cheap, and you live with the transmission losses. But, that's neither here nor there.
I'd be interested in how you model it. I think that you could make a pretty simple 2D CFD model to get a rough idea of the flow rates for a given temperature delta. OpenFOAM could probably do it.