solar tower power generation (Mega Project)

Forum solar photovoltaic PV and solar electricity generation from direct radiation solar energy.
moinsdewatt
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by moinsdewatt » 31/08/14, 13:06

Ecoman wrote:......

In any case this solution must be better since the project seems to be done


The article does not give me the impression that the project started.

With an advanced cost of $ 1.5 billion, investors and banks will have to be found.

For the moment it is a project on paper.
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by Ahmed » 31/08/14, 16:35

To complete the explanation of Citrus as well as Highfly-Addict, At the highest possible initial heat level, the lowest possible initial water content must be added, since this is the condition for maximum absorption, therefore for maximum cooling (which goes to the first point) .
In any case, hello water consumption, Las Végas has only to behave well!

Highfly-Addict, the disadvantage for you of such a tower, would be that you would be pressed against the upper grid in the event of overflight, whereas, with the hot air tower, you could do "push-ups" to infinity! :P
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by highfly-addict » 31/08/14, 19:57

: Lol: The main advantage of the descending tower is above all the possibility of taking a shower / refreshment break.
Before, the only way was to be sucked into a storm cloud : Mrgreen: . Long live progress! : Mrgreen:

Ps: Image Besides, Nothing prevents doing both, the descending towers increasing the efficiency by humidifying the air of the ascending towers.
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by Ahmed » 31/08/14, 20:07

You just invented a "coupound" tower system! 8)
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by sen-no-sen » 01/09/14, 13:09

Ecoman wrote:Yes, but the basic principle of the solar cheminey was that ... hot air rises.

Here I do not really understand the interest of doing the thing in arid zone, what difference does it make if it is to cool the air with water, if it is found we would do the same in non-arid zone ? hence my questioning


Here it is not a solar convection chimney but a vacuum solar chimney also called energy tower:
Image

The principle remains simple: we diffuse water via nozzles located at the top of the tower.
The water cools the ambient air, the density of which increases, which then begins to fall, causing the creation of a downward current of air, which is then channeled through tunnels in which turbines are inserted.
The problem is that you need a very, very high tower (600-1200m) located in a hot and dry climate ...
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by I Citro » 01/09/14, 13:22

It is also necessary that the air rejected at the foot of the tower is not sucked back by the latter ...
The "Hot air dry" transforming into "hot air humid" would have a lower capacity to be cooled by the injection of water.

Little reminder; each gram of evaporated water absorbs one calorie. : Arrowl:

The foot of the tower must be designed so as not to heat the exhaust air (roof opaque to solar rays and insulated) which would reduce the efficiency.
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by sen-no-sen » 01/09/14, 13:33

citro wrote:It is also necessary that the air rejected at the foot of the tower is not sucked back by the latter ...
The "Hot air dry" transforming into "hot air humid" would have a lower capacity to be cooled by the injection of water.


Such a device must be located in a particularly dry area, preferably near a reusable water source (ocean, sea) ... which does not necessarily stick!
The convection solar tower has a major advantage compared to this type of construction: 24 hour operation without water supply ...

Vortex towers are much more promising ...
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by I Citro » 03/12/14, 13:56

SophieRichard wrote:the power of solar energy is immense, we could use it with care!
Yes, every 90 minutes, the earth receives solar energy for a year ...
Instead of picking this windfall, we prefer to kill each other and poison ourselves to extract the CO2 that our planet has taken millions of years to capture and bury in its bowels so that the air is breathable and the climate temperate.

And then we are surprised that the air quality deteriorates. : Cry:
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by I Citro » 05/12/14, 09:25

SophieRichard wrote:it is also due to the technique that we master to use solar energy well is not advanced! and there are also unstable elements. but your opinion is very precise!
I did not understand everything you said. :|
The technique that we use is progressing and we should not be deprived of using it.
Yesterday, I visited the roof of the new City Municipality of Bordeaux covered with more than 1700m² of photovoltaic panels with a yield of 215W / m². These panels manufactured by a TOTAL subsidiary in Toulouse (US patent of SUNPOWER) were space technologies 15 years ago and land on Earth today ...

Architectural constraints imposed not to see the panels and limited their surface. But the goal is to make this building positive energy.
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by moinsdewatt » 06/12/14, 14:42

citro wrote:...... the roof of the new City Municipality of Bordeaux covered with more than 1700m² of photovoltaic panels ....


article here: http://maisoneco.blog.bordeaux.fr/archi ... 08949.html

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