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hachicontrol (October 5, 2008 at 8:21 pm)
Plus, there would be efficiency losses as the air rises, because the fact that the air is rising means that its energy is going elsewhere, and not ultimately towards turning the turbines blades.
beartracksracing (September 29, 2008 at 10:17 pm)
Once the heated air reaches the tower, it will not have much less force than at the exit of the tower. Yes airspeed will be geater at the top, but the air density will be lower resulting nearly same force. From simplicity aspect, the turbin at the bottom will produce the cheapest electricty per KW.
beartracksracing (September 29, 2008 at 10:11 pm)
that is 30KW an hour. Most homes use only 30KW a day. That would be at least 24 homes that can be powered from this tower.
beartracksracing (September 29, 2008 at 10:08 pm)
Just a thought. If the upper atmosphere wind speeds are higher than the wind speed in the vertical wind tunnel why not use that to increase power.
Cap the top of the tower with a 90 degree hood that can rotate to match wind direction by use of a stablizer vains and bearings. As upper atmostphere winds are blown by the vent hood, an venturi effect is created increasing the total wind speed of the tower. This will increase the power of turbin below.
gaiatechnician (September 21, 2008 at 9:39 pm)
it would be much harder engineering wise to put it at the top. It was just a test run.
tidtad123 (September 21, 2008 at 2:57 pm)
between 1:15 - 1:20, What is the name of the material again that is use?
joemc111 (September 20, 2008 at 5:05 pm)
I think the Turbine should be placed at the top. My reason is that if the turbine is placed on the bottom you only have the suction of the Chimney pulling air through the blades, But if the TURBINE is placed at the top then all the hot air trying to get out will have to go through the Blades. If you want to see what I am talking about try this with a shop vac. Hold you hand over the tube while you are sucking, and then try to hold you hand over the tube while you are Blowing. Which is harder?
tulmax82 (September 7, 2008 at 8:51 am)
that's a good question, I thought the same! I guess that somehow every turbine would slow down the air reducing the energy production of the next turbine... but it sounds pretty lame...
does anyone know the reason?
ChemicalMikeUK (August 31, 2008 at 6:44 pm)
i wonder what the ramifications are of having all that heat energy focused in one place high in the atmosphere will be
OgeronimonominoregO (August 31, 2008 at 3:16 am)
If the air continues to rise, why not have more turbines in the chimney? |
