also, at the top of the tower, if there was a right-angle swiveling elbow for the exhaust to be released in the direction of the wind, the wind will create a vacuum that will pull the air from tube as well
Keith, you are right!, three good points! They have been considered during the course of the project: 1. Plants have been kept short by sheep and goats after the initial learning phase of the project shown here. 2. Black plastic was installed during test operation to increase solar energy absorption 3. Water collection was planned but not realized on a large scale for cost reasons. Still, the effects of condensation have been included in the simulation tools.
sir gerhard you are right. and i have 2 important update changes of solar up draft towet. result are 40% of more power and more electricity are ganrated. contact no +917566884491 email burhanthaker@gmail.com
This is a viable cocept with modern tech upgrades this could be very good. instead of black plastic bags. now a days they would probably use a concrete floor to store heat and painted with fanta black wich absorbs 99.98 percent of like and transforms it into heat. with a vortex on the top of the chimney you could lower the pressure on top even more. Lets add Electron stripping and this thing could be massive efficient.
I love the last sentence, which says it all: "This solar chimney in Spain has demonstrated that it will be possible in the future to compete on a dollar for dollar basis with virtually any other form of power generation - with that 1 unbeatable advantage: that its got an inexhaustable source of free, original, energy in the Sun."
The air under the canopy is heated. Some of it enters the tower. When in the tower, it will lift and suck in more hot air into the tower. When starting, some hot air will escape att the outer edge, but as opposed to the air in the tower, it won't keep sucking out more hot air. When the process is up and running, most of the hot air will get sucked into the tower.
Keep in mind that the entire action is powered by buoyancy. Hot air or water vapour has less density compared to ambient air and It's this difference in mass of the air inside the chimney and the ambient air that generate the mechanical force. Humid air actually greatly increases the power output as water vapour is almost half the mass of atmospheric air. Many ways to make this more powerful: by building a chimney with greater internal volume, better insulation to prevent heat loss in the chimney, a way to remove the fog condensed inside the chimney, and shape it like a funnel to increase the airspeed through the turbine but slow down within the chimney.
I don't understand why they don't: 1. Remove all plants underneath because they slow the air down. 2. Use black plastic to line the ground so as too re-radiate it as heat and cause the air to travel faster. 3. Collect and remove any dew (possibly save for drinking water) that forms over night because evaporation and or plant respiration makes the air cooler and more heavy thus slowing air down in the tower.
When air is warmed it becomes less dense(expands), and so it rises above cooler, more dense, air. There is friction between moving air and any surface which will act to impede the flow near the surface. This is called the laminar flow effect. Also when air is warmed it becomes more viscous (“sticky/gooey”), rather than less - a behavior that is exactly the opposite of most familiar materials. When air is in contact with a hot surfce, these properties act together to produce a layer of viscous low-density air that “sticks” to the surface. This is called the boundary layer effect, and its thickness depends on the temperature at the surface/air interface.
It doesn't produce as much power as photovoltaics, but it makes constant power. Made out of tempered glass with anodized aluminum frames this thing could run decades upon decades longer than a photovoltaic panel with very minimal maintenance. It can be combined with pasture land or cereal crop fields for power/farming use.
Of course not. The air is being heated in canopy (greenhouse). And as we all know heated air is lighter then cool air so that it will tend to go up. And the only way to escape is tower, and in tower are generators.
Everytime I see these , my EXACT thought is why can't they install layers the turbines ?? Meaning use the already generated rising air MULTIPLE TIMES , can anyone please explain why this isn't possible or why no one has been doing it?
@@joealbarella2493 The speed of the airflow across the turbines relates to the power that can be generated in any one tower. If you add turbines above the first one , you will reduce the speed of the air rising in the tower and thus the power produced. However , if you were to have more than one tower, say a ring of five towers and all fed by the same, or larger ground collector, and each with its own turbine generator unit, then providing that you have sufficient ground area to collect the air to feed the multiple towers you will gain the advantage of more power. If I were designing a multiple tower system, I would have each tower controlled according to the amount of air flowing into the area where the towers are, thus during the day , all 5 towers may be fed with sufficient air flow, but some could be shut down according the amount of air flowing in the system, say at night when there may be less air flow. Also in a multiple tower system , the total land required may only be slightly larger , if at all for one. Furthermore, you will have redundancies for maintenance outages, with no loss of power as other towers in the group could be running.
These are horribly inefficient in terms of area utilized. A comparable area of conventional PV modules would generate an order of magnitude or more electricity without the need for a giant chimney in the middle of the site.
@@randacnam7321 You raise a valid point in terms of the area used. I still do see some practical application for it because of the low tech solution it provides, especially for countries like my own (South Africa). We also have vast open swathes of land and get a lot of sunshine. The greenhouse effect is another advantage, utilizing the area under the plastic cover for food crops. It would be interesting comparing this aspect with a normal solar farm where you will have mostly shade beneath the panels.
Because black plastic would absorb the light (heat) as opposed to just letting it through to heat the ground (which through radiant heat heats the air) and air which then rises due to the properties of physics, and then moves through the tower which turns the turbine generator.
This is fantastic! I bet you could also grow crops of some kind under the plastic. It would make for a more efficient use of the space. I hope to see these used in the real world to supply electricity.
So then the air is drawn under the canopy by the force of air being drawn up the tower, and that force is being generated by the heat from the sun being trapped inside the tower?
But in order for that to do any good, the canopy would still have to be higher around the base of the tower than around its outer edge or the rising air would simply escape over the edge of the canopy, unless the air inside the tower is also being heated, and therefore is rising, causing a vacuum which draws in the air from under the canopy, which, being heated, contributes to the lift effect.
i think if they put the canopy over a black-top asphalt parking lot, the air would be heated much more quickly - also it would work longer at night with all of the heat absorption during the day, anything that is the color black will always absorb more heat from the sun- better yet would be a large black metal egg-carton underneath the canopy which would yield more heated sq footage for the same canopy size
Going to be? As you plainly saw from the footage, the tower is already built. In fact, it was so long ago that it's already been decommissioned and dismantled!
This design could be incorperated into the houses of parliament and other political buildings to harness the enormous amounts of hot air generated within.
It's about capturing convection currents. The air keeps moving. The only time it would stop is if the air cools before it reaches the top in which case the convection cycles within the tube.
@randommagnum First of all, $1 million in 1983 in real terms is worth more than 3 times what $1 million is worth now. Second, 30KW is what 1 turbine generates. There was about 30 turbines?..
You could farm or graze under the canopy, or harvest feed grass for animals. That could also be left as an oxygen making green space. Also cement is one of the most recycled products on earth. Using old streets for new power sounds great. ... I wonder if a dark tinted surface would draw better?
Great system -- but why use polyvinyl flouride? Why not use glass? The polyvinyl only lasts 10-12 yrs while glass should last indefinitely (sans vandalism). The initial cost might be a little higher, especially if a stronger, higher quality glass is used -- but this should be offset by the longer lifespan.
In some regions, like the US buildings over a certain height have to be painted for visibility. Like this tower for example is white and red, most probably for that reason. It's so smaller aircraft don't fly into them.
As far as I can tell, though, the canopy is completely level. If this is the case, then there is no reason why heated air would escape up the tower more than it would simply escape over the edge of the canopy. If the canopy is sealed to the ground, then how does air get in in the first place?
Then you didn't see ALL of Spain. You just went to the wrong place. I am Spanish and live in Madrid, and even I get surprised when I travel to other parts of Spain, because they are so different from each other. You should know that Spain is one of the main tourist destinations of the WORLD.
doubtful, they said the efficiency drops as the tower height is lowered. I doubt you'd want to go any lower than the Spanish tower - for example, all future tower designs are higher.
Is there any reason why heat from the sun's light would not also get, to some extent, trapped inside the tower, further raising the temperature of the air there and contributing the the vacuum effect drawing in the air under the canopy?
... maybe they just keep canopy closed for some time untill its warm enough and then open the tower and open some ways to canopy itself so that heat air can escape....
wow.. you're so happy.. I just told the truth what I thought about it.. but I'm sorry, but it was really the worst place I've been in my life.. denmark was the second..
It seems to me these things would have to be absolutely massive if they were to deliver realistic amounts of energy. This 200 m tower only delivered 60 kw, which is a pittance. I don´t see where you want to build them in developed countries. If in the desert, you are back to the same problem that desertec has, namely distance and transportation.
1 thing I m not understand , that much air is enough to rotate the turbine because it's take heigh power . so it will use any inital process to apply force
The plantations beneath the sheeting would impede the airflow making the the power plant less efficient. Might be good for growing cannabis as a home project though though, that chimney would keep the smell from the neighbours, so no-one would suspect anything.
LOL, good idea. At least the high flying eagles can become stoned too, now. On a more serious note, I doubt that the plants will have such a large effect on the airflow, especially on the outer fringe of the canopy. The larger area on the outside equates to a much slower movement of air.
At the top of the pipe, if you add several mini size of this Concentrated Solar Power disks /watch?v=rRYfsAExkUw, it can initiate the upward drift of air flow.
It's a interesting question. I'm not very familiar with fluid mechanics but I have a feeling that by adding more turbines higher up in the chimney the flow downstairs will be reduced. This would probably bring the total output more or less to the original value.
I live in Iceland.. not america.. but I'vee been in america, and there are nice people there ..really.. but Iceland is the freakin best because everyone there speaks english, and our icelandic.. o people can get help everywhere if they speak olny english.. somewhere in europe, people don't even speak english! and polland is a freakin nightmare..
It`s wrong. Your calculculation is based on the cost of the non-renewable energy, which is the cost of the coal or the oil + mainteinance of the power plant. This tower`s TOTAL cost is about $ 1.000.000 to construct, but after constructed it`s almost for free the cost of the energy (compared whit oil or coal). To make your calculation, you have to spread the tower`s cost among 10 or 15 years, with the generation of the average energy produced(15-30 kW). I hope have solved your dude.
i´m portuguese and white but i know others that are portuguese but decendent from other ethnic grups, that tus not make them less portuguese by the law, i think the same happens to spain, and i hope so, it`s the mark off a countrys great history, love spain.
this is awesome ! o rage ! o desespoir ! o vieillesse ennemie ! o tour solaire ! science sans conscience n'est que ruine de l'ame ! sa m'excite ce truc !
I would have thought that the fan blades would be better off being higher up, so that a Bernoulli Effect would cause the velocity of the air to be higher than down low where it seemed they were in a wide part of the chimney. $1M for 30Kw? Not ready for prime-time that's for sure. Are they counting what real estate to put many of these on would cost? And isn't there a PROBLEM with vegetation growing up underneath? Block the air-flow, and grow up through the 0.1mm-thick plastic? D'oh!
@vampov Well, why don´t you explain your simple solutions to engineers world-wide. Because power plants are always built as close to consumers as possible. Everybody except you seems to see the problem.
If they do have winds of up to 150 km/h most of the year they can easily put a wind generator. For $ 1000 000 you can get way more than 30kw. The experiment look interesting but its just that, an experiment.
@Charlesincharge42 There is something I don't get with the Floating Solar Chimney. Always when power is produced over a turbine there is a pressure drop. EnviroMission calculates with a drop at about1500 Pa. This means that there will be a net pressure on the canvass of about 150 kg/m2. No fabric can withstand this. I can't see that the floating solar chimney is realistic.
in Spain.. its hot.. and so heavy air that you can barly breath.. and I don't understand how people at Spain can live.. it sucks so bad there.. even at 2 at night, there was just families walking around at night with their 3-5 years old children.. I mean.. is that even human? and even there's a lot of robbery going on there.. Spain just makes me sick.. if I would buy a PS3, and walk with the PS3 box to my house there, how many chances would it be that I would get robbed? I'd say about 98%
16 ปีที่แล้ว
A million buck for 30Kw what a massive waste of time.
Again, you just didn't went to a proper place!! =) But if I would have to say about any food that it "tastes like a pile of dog shit", I would say it about fast food. And it's not that people from other countries are rich and we're poor, it's that people from other countries have more acquisitive power. But politicians are to blame!!
AVERAGE power, you would need probably about 150 kWp photovoltaics for the same yield at this location. But you are right, 1 million dollars is too much, even for average power of 30 kW. But it's just a small demonstration plant. These plants have to be big for cost effective power production. 200-MW-plants should achieve power production costs of 80 euros per MWh. This would be not bad, comparable to wind power or photovoltaics on very sunny locations.
When it comes to energy economics there are two very different metrics to consider. 1) Cost per killowatt of generating capacity: This is the upfront cost very much like it cost you between $500 to $1000 to buy a 2kw generator from the store. 2) Cost per kilowatt hour: This is very much like adding in the cost of fuel, maintenance and replacement parts as well as the investors ROI through out the life of the 2kw generator and dividing the total cost by how many kilowatts are expected to be generated. When they throw around numbers like that, I am not sure if they are actual cost or they deceptively excluded the cost of subsidies, but issue aside, if we assume actual cost then he is saying it cost about $1,000,000 for the ability to produce a maximum of 60kw or an averaged of 30kw. That is $1 million for 30kw for average production capacity is not $1 million 30kwh of produced energy. Averaging 30kw every hour for 10 years the tower should produce around 2.62 trillion watt hours. Where with your generator the fuel is an ongoing operational cost, the tower gets its energy from the sun for free, but it has to replace all the plastic every 10 years, maintenance cost. Unfortunately, I don't know the other cost to calculate an average kilowatt hour cost.
also, at the top of the tower, if there was a right-angle swiveling elbow for the exhaust to be released in the direction of the wind, the wind will create a vacuum that will pull the air from tube as well
The elbow would also reduce drag & loading at the top of the tower, while keeping rain out and acting as a giant weather vane for the public.
interesting idea.
Keith, you are right!, three good points!
They have been considered during the course of the project:
1. Plants have been kept short by sheep and goats after the initial learning phase of the project shown here.
2. Black plastic was installed during test operation to increase solar energy absorption
3. Water collection was planned but not realized on a large scale for cost reasons. Still, the effects of condensation have been included in the simulation tools.
sir gerhard you are right.
and i have 2 important update changes of solar up draft towet. result are 40% of more power and more electricity are ganrated.
contact no +917566884491
email burhanthaker@gmail.com
This is a viable cocept with modern tech upgrades this could be very good. instead of black plastic bags. now a days they would probably use a concrete floor to store heat and painted with fanta black wich absorbs 99.98 percent of like and transforms it into heat. with a vortex on the top of the chimney you could lower the pressure on top even more. Lets add Electron stripping and this thing could be massive efficient.
sheep and goats poop will make gas and some day it will go kaboom LOL
I love the last sentence, which says it all:
"This solar chimney in Spain has demonstrated that it will be possible in the future to compete on a dollar for dollar basis with virtually any other form of power generation - with that 1 unbeatable advantage: that its got an inexhaustable source of free, original, energy in the Sun."
The air under the canopy is heated. Some of it enters the tower. When in the tower, it will lift and suck in more hot air into the tower. When starting, some hot air will escape att the outer edge, but as opposed to the air in the tower, it won't keep sucking out more hot air. When the process is up and running, most of the hot air will get sucked into the tower.
Keep in mind that the entire action is powered by buoyancy. Hot air or water vapour has less density compared to ambient air and It's this difference in mass of the air inside the chimney and the ambient air that generate the mechanical force. Humid air actually greatly increases the power output as water vapour is almost half the mass of atmospheric air. Many ways to make this more powerful: by building a chimney with greater internal volume, better insulation to prevent heat loss in the chimney, a way to remove the fog condensed inside the chimney, and shape it like a funnel to increase the airspeed through the turbine but slow down within the chimney.
I don't understand why they don't:
1. Remove all plants underneath because they slow the air down.
2. Use black plastic to line the ground so as too re-radiate it as heat and cause the air to travel faster.
3. Collect and remove any dew (possibly save for drinking water) that forms over night because evaporation and or plant respiration makes the air cooler and more heavy thus slowing air down in the tower.
light will be able enter and help the plants grow, which in turn convert co2 to oxygen making it even more beneficial
When air is warmed it becomes less dense(expands), and so it rises above cooler, more dense, air.
There is friction between moving air and any surface which will act to impede the flow near the surface. This is called the laminar flow effect.
Also when air is warmed it becomes more viscous (“sticky/gooey”), rather than less - a behavior that is exactly the opposite of most familiar materials.
When air is in contact with a hot surfce, these properties act together to produce a layer of viscous low-density air that “sticks” to the surface. This is called the boundary layer effect, and its thickness depends on the temperature at the surface/air interface.
Part of the concept here is to be as low-cost and simple as possible. The plants over so wide an area likely isn't that big a deal.
It doesn't produce as much power as photovoltaics, but it makes constant power. Made out of tempered glass with anodized aluminum frames this thing could run decades upon decades longer than a photovoltaic panel with very minimal maintenance. It can be combined with pasture land or cereal crop fields for power/farming use.
Of course not.
The air is being heated in canopy (greenhouse). And as we all know heated air is lighter then cool air so that it will tend to go up. And the only way to escape is tower, and in tower are generators.
make it a vortex instead of straight tube. add layered turbines, make it narrower at the top.
Everytime I see these , my EXACT thought is why can't they install layers the turbines ?? Meaning use the already generated rising air MULTIPLE TIMES , can anyone please explain why this isn't possible or why no one has been doing it?
@@joealbarella2493 it would probably work too well
@@joealbarella2493 The speed of the airflow across the turbines relates to the power that can be generated in any one tower. If you add turbines above the first one , you will reduce the speed of the air rising in the tower and thus the power produced. However , if you were to have more than one tower, say a ring of five towers and all fed by the same, or larger ground collector, and each with its own turbine generator unit, then providing that you have sufficient ground area to collect the air to feed the multiple towers you will gain the advantage of more power. If I were designing a multiple tower system, I would have each tower controlled according to the amount of air flowing into the area where the towers are, thus during the day , all 5 towers may be fed with sufficient air flow, but some could be shut down according the amount of air flowing in the system, say at night when there may be less air flow. Also in a multiple tower system , the total land required may only be slightly larger , if at all for one. Furthermore, you will have redundancies for maintenance outages, with no loss of power as other towers in the group could be running.
Its a sad thing these things aren't catching up
Hirantha Bandara Yeah, I'd like to see these take off.
These are horribly inefficient in terms of area utilized. A comparable area of conventional PV modules would generate an order of magnitude or more electricity without the need for a giant chimney in the middle of the site.
@@randacnam7321 You raise a valid point in terms of the area used. I still do see some practical application for it because of the low tech solution it provides, especially for countries like my own (South Africa). We also have vast open swathes of land and get a lot of sunshine. The greenhouse effect is another advantage, utilizing the area under the plastic cover for food crops. It would be interesting comparing this aspect with a normal solar farm where you will have mostly shade beneath the panels.
That is wonderfull, we need to start building those here in America.
Because black plastic would absorb the light (heat) as opposed to just letting it through to heat the ground (which through radiant heat heats the air) and air which then rises due to the properties of physics, and then moves through the tower which turns the turbine generator.
This is fantastic! I bet you could also grow crops of some kind under the plastic. It would make for a more efficient use of the space. I hope to see these used in the real world to supply electricity.
So then the air is drawn under the canopy by the force of air being drawn up the tower, and that force is being generated by the heat from the sun being trapped inside the tower?
But in order for that to do any good, the canopy would still have to be higher around the base of the tower than around its outer edge or the rising air would simply escape over the edge of the canopy, unless the air inside the tower is also being heated, and therefore is rising, causing a vacuum which draws in the air from under the canopy, which, being heated, contributes to the lift effect.
i think
if they put the canopy over a black-top asphalt parking lot,
the air would be heated much more quickly - also it would
work longer at night with all of the heat absorption during
the day, anything that is the color black will always absorb
more heat from the sun- better yet would be a large black metal egg-carton underneath the canopy which would yield more heated sq footage for the same canopy size
Madre mía, pero esto no está en Madrid, está en un pueblo de La Mancha
Very interesting. If the government really wants to distance itself from big oil and fossilfuels, I think this is one way to go..
Going to be?
As you plainly saw from the footage, the tower is already built.
In fact, it was so long ago that it's already been decommissioned and dismantled!
Maybe economics can take into consideration Spain to be the 9th country of the world in economic terms, with a population of about 45 million.
This design could be incorperated into the houses of parliament and other political buildings to harness the enormous amounts of hot air generated within.
Why don't they paint the top of the building black? Wouldn't that contribute to the updraft?
It's about capturing convection currents. The air keeps moving. The only time it would stop is if the air cools before it reaches the top in which case the convection cycles within the tube.
Would work great on a skyscraper and would help at keeping the building cool at the same time :)
Well they're also working on such a project in the Australian outback.
@randommagnum
First of all, $1 million in 1983 in real terms is worth more than 3 times what $1 million is worth now.
Second, 30KW is what 1 turbine generates. There was about 30 turbines?..
excellent . so, why aren't there hundreds of these in mexico, ecuador, arizona, nevada, new mexico?
You could farm or graze under the canopy, or harvest feed grass for animals. That could also be left as an oxygen making green space.
Also cement is one of the most recycled products on earth. Using old streets for new power sounds great. ... I wonder if a dark tinted surface would draw better?
Видео единственной из существующих солнечных башен.
Great system -- but why use polyvinyl flouride? Why not use glass? The polyvinyl only lasts 10-12 yrs while glass should last indefinitely (sans vandalism). The initial cost might be a little higher, especially if a stronger, higher quality glass is used -- but this should be offset by the longer lifespan.
@Derukugi2 Well transportation isn't a issue if you up the voltage really high the resistance is almost nill
In some regions, like the US buildings over a certain height have to be painted for visibility. Like this tower for example is white and red, most probably for that reason. It's so smaller aircraft don't fly into them.
It's also true that Small Aircraft are not allowed to fly under 1000 feet.
we in iceland have many tourists.. and even iceland is filling with bunks of people from polland that don't even know how to speak english..
As far as I can tell, though, the canopy is completely level. If this is the case, then there is no reason why heated air would escape up the tower more than it would simply escape over the edge of the canopy. If the canopy is sealed to the ground, then how does air get in in the first place?
Things are more expensive in Europe...
There's a lot of people travelling from Spain to Japan or USA to buy laptops, mp3, videogames, etc...
Then you didn't see ALL of Spain. You just went to the wrong place. I am Spanish and live in Madrid, and even I get surprised when I travel to other parts of Spain, because they are so different from each other. You should know that Spain is one of the main tourist destinations of the WORLD.
doubtful, they said the efficiency drops as the tower height is lowered. I doubt you'd want to go any lower than the Spanish tower - for example, all future tower designs are higher.
@pintoresmadrid madrid es de castilla la nueva... es decir... la mancha xD otra cosa es que con la transición le hicieran una comunidad para ella sola
Is there any reason why heat from the sun's light would not also get, to some extent, trapped inside the tower, further raising the temperature of the air there and contributing the the vacuum effect drawing in the air under the canopy?
maybe its just enough for the hot air in the middle of the canopy to go up the tower and the rest from the outer edge
put livestock under it and all the methane rising up can add to the air flow
It frikkin low maintenance too!
Euhm, why is the plastic white and not black?
I have virtually NO IDEA why nobody picked this up large scale. its 2022 and only a 200kw plant in china is operational. the only one worldwide. Why?!
... maybe they just keep canopy closed for some time untill its warm enough and then open the tower and open some ways to canopy itself so that heat air can escape....
nice pink sweater.
wow.. you're so happy.. I just told the truth what I thought about it.. but I'm sorry, but it was really the worst place I've been in my life.. denmark was the second..
It seems to me these things would have to be absolutely massive if they were to deliver realistic amounts of energy. This 200 m tower only delivered 60 kw, which is a pittance.
I don´t see where you want to build them in developed countries. If in the desert, you are back to the same problem that desertec has, namely distance and transportation.
1 thing I m not understand , that much air is enough to rotate the turbine because it's take heigh power . so it will use any inital process to apply force
good point
Very cool
Nice idea. Only too expensive. You can build solar cells for much less. I still like the idea. It just needs to be made allot more cost affective.
We need to get smart about energy.
Why you will never see this in the USA? no Money to be made from renewable resources, think smaller individual scale that is where this will work
spaniards can be many colors, like everybody else.
Olé... no entiendo nada de lo que ponéis, pero viva el sol...
The plantations beneath the sheeting would impede the airflow making the the power plant less efficient. Might be good for growing cannabis as a home project though though, that chimney would keep the smell from the neighbours, so no-one would suspect anything.
Now, 13 years later: cannabis has mostly been legalized.
LOL, good idea. At least the high flying eagles can become stoned too, now. On a more serious note, I doubt that the plants will have such a large effect on the airflow, especially on the outer fringe of the canopy. The larger area on the outside equates to a much slower movement of air.
Interesting!
At the top of the pipe, if you add several mini size of this Concentrated Solar Power disks /watch?v=rRYfsAExkUw, it can initiate the upward drift of air flow.
une vidéo où il pèse dans le game depuis le début de TH-cam
@lcabosa no, spaniards are not many colors. They are european whites
Why not put several turbines up the tube?
It's a interesting question. I'm not very familiar with fluid mechanics but I have a feeling that by adding more turbines higher up in the chimney the flow downstairs will be reduced. This would probably bring the total output more or less to the original value.
What is the song?
put more turbines in the upper tube and it will make mor power at the same site
hey! Im spanish, i`ve got an psp, my brtothers too, and nobody thinks im a rich (thigs are cheaper in europe cause we have euros)
@bertfiddledither Dont you mean 833 000?
I live in Iceland.. not america.. but I'vee been in america, and there are nice people there ..really.. but Iceland is the freakin best because everyone there speaks english, and our icelandic.. o people can get help everywhere if they speak olny english.. somewhere in europe, people don't even speak english! and polland is a freakin nightmare..
It`s wrong. Your calculculation is based on the cost of the non-renewable energy, which is the cost of the coal or the oil + mainteinance of the power plant. This tower`s TOTAL cost is about $ 1.000.000 to construct, but after constructed it`s almost for free the cost of the energy (compared whit oil or coal). To make your calculation, you have to spread the tower`s cost among 10 or 15 years, with the generation of the average energy produced(15-30 kW). I hope have solved your dude.
How much enery does it produce per second/hour ? I need to know this for my school project about renewable energy, can somebody tell me? Thanks :)
There's plenty of food ;)
what ?O.o There is no song @.@
i´m portuguese and white but i know others that are portuguese but decendent from other ethnic grups, that tus not make them less portuguese by the law, i think the same happens to spain, and i hope so, it`s the mark off a countrys great history, love spain.
wow must cost you $50 just to turn the TV on where you live.
this is awesome !
o rage ! o desespoir ! o vieillesse ennemie ! o tour solaire !
science sans conscience n'est que ruine de l'ame !
sa m'excite ce truc !
The turbines create drag on the system. Just like any motor the more current you draw the more fuel you need.
It was discovered by Germans but over the years the Sh has been dropped from the start of the name.
I would have thought that the fan blades would be better off being higher up, so that a Bernoulli Effect would cause the velocity of the air to be higher than down low where it seemed they were in a wide part of the chimney. $1M for 30Kw? Not ready for prime-time that's for sure. Are they counting what real estate to put many of these on would cost? And isn't there a PROBLEM with vegetation growing up underneath? Block the air-flow, and grow up through the 0.1mm-thick plastic? D'oh!
It's ok. But I think I want energy derived from roadkill.
Iceland is in Europe...
If we were to cover that same area with solar panels could we produce more power?
But not at night unless you more than double the cost by putting massive batteries in place, which have a huge environmental impact.
that could be in EE.UU cause they`ve got weapons.
yes, spaniards are White.
@vampov
Well, why don´t you explain your simple solutions to engineers world-wide. Because power plants are always built as close to consumers as possible. Everybody except you seems to see the problem.
If they do have winds of up to 150 km/h most of the year they can easily put a wind generator. For $ 1000 000 you can get way more than 30kw. The experiment look interesting but its just that, an experiment.
@Charlesincharge42 There is something I don't get with the Floating Solar Chimney. Always when power is produced over a turbine there is a pressure drop. EnviroMission calculates with a drop at about1500 Pa. This means that there will be a net pressure on the canvass of about 150 kg/m2. No fabric can withstand this. I can't see that the floating solar chimney is realistic.
in Spain.. its hot.. and so heavy air that you can barly breath.. and I don't understand how people at Spain can live.. it sucks so bad there..
even at 2 at night, there was just families walking around at night with their 3-5 years old children.. I mean.. is that even human?
and even there's a lot of robbery going on there.. Spain just makes me sick.. if I would buy a PS3, and walk with the PS3 box to my house there, how many chances would it be that I would get robbed? I'd say about 98%
A million buck for 30Kw what a massive waste of time.
building codes will have to be changed then.
ad a litlle anti noise to the turbine and it runs quitly
2006 video LOL
I was watching this on youtube before 6th graders today were born.
Was this made in the 80s or does he just have a cheesy pornstar mo? ... And that jumper... with plaid shirt... Oh boy...
Me parece que sólo los argentinos.
Madrid? xDDD Its going to be in Ciudad Real!!! NOT MADRID.
upps ,sorry
Again, you just didn't went to a proper place!! =) But if I would have to say about any food that it "tastes like a pile of dog shit", I would say it about fast food. And it's not that people from other countries are rich and we're poor, it's that people from other countries have more acquisitive power. But politicians are to blame!!
$1 million dollars for 30Kw/h is economically viable he says at 3:57. Not with my money.
AVERAGE power, you would need probably about 150 kWp photovoltaics for the same yield at this location.
But you are right, 1 million dollars is too much, even for average power of 30 kW.
But it's just a small demonstration plant. These plants have to be big for cost effective power production. 200-MW-plants should achieve power production costs of 80 euros per MWh. This would be not bad, comparable to wind power or photovoltaics on very sunny locations.
When it comes to energy economics there are two very different metrics to consider.
1) Cost per killowatt of generating capacity: This is the upfront cost very much like it cost you between $500 to $1000 to buy a 2kw generator from the store.
2) Cost per kilowatt hour: This is very much like adding in the cost of fuel, maintenance and replacement parts as well as the investors ROI through out the life of the 2kw generator and dividing the total cost by how many kilowatts are expected to be generated.
When they throw around numbers like that, I am not sure if they are actual cost or they deceptively excluded the cost of subsidies, but issue aside, if we assume actual cost then he is saying it cost about $1,000,000 for the ability to produce a maximum of 60kw or an averaged of 30kw. That is $1 million for 30kw for average production capacity is not $1 million 30kwh of produced energy.
Averaging 30kw every hour for 10 years the tower should produce around 2.62 trillion watt hours. Where with your generator the fuel is an ongoing operational cost, the tower gets its energy from the sun for free, but it has to replace all the plastic every 10 years, maintenance cost. Unfortunately, I don't know the other cost to calculate an average kilowatt hour cost.