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post #201 of 449 (permalink) Old 03-30-2011, 03:59 PM Thread Starter
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The wind energy. Harrier is driven by the wind, the helicopter also...In order to receive a flow venturi nozzle which is in the engine Harier ( 200 KG / sec ), then you need only 6 meters in diameter and 25 length.... and 5 m / sec wind...






With the movement of 200 Kg / sec Harrier has a string of 10 000 KG....

Another way to go. The narrowest point is less Venturiego nozzle pressure. It's like found in the center of the lowlands of atmospheric ( weather ). This causes larger than hurricanes weather.
Except that here we have a much shorter way from the boom to the lowlands....
Huricane flows from areas of high pressure to areas of low pressure.




QUOTE (Greg Locock @ Mar 29 2011, 21:25)
Step back from the equations, and think about what would happen if you put a disc with a hole in it up to the airflow. Now stretch the disc out along the axis of the hole. All the air in the disc bit will be still 'see' disc ahead of them, not the hole you'd like them to go for. A big wodge of stagnated air will build up ahead of the venturi. For the equations just use continuity and Bernouilli, for the lossless case./QUOTE


In this reasoning, the disc does not have thickness. The reasoning for the classic windmill, to which all are used: flat disk, with virtually no thickness. Therefore, the classic windmill has a low efficiency, because this disc is not dispensed air mass and its speed is only such as wind.
The venturi nozzle are two cones and a not insignificant thickness of 25 meters. And now this whole mass of air that is housed in a venturi nozzle is involved in the flow through it. It should be noted that the cones are of unequal length. Cone output is 30 % longer than the input... why? Well, because this is the output cone of doing it at low pressure in the narrowest point.
With reduction in pressure, is involved the whole mass of air in which the output is a cone, that is, the average disk X 16m. Cone can not be shorter because they do not provide laminar flow, which is a prerequisite for good work Venturi nozzle. With disorders of movement ( for a short cone ) in action will take part, only a small mass of air, to lower pressure. The condition is llaminar flow, because the cone has to be quite so long. For that produces a significant vacuum in the narrowest point, causing fresh air to the input cone...

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post #202 of 449 (permalink) Old 03-31-2011, 02:43 PM Thread Starter
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However, few venturi nozzle in the world already taken:









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post #203 of 449 (permalink) Old 04-04-2011, 06:11 AM Thread Starter
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If you need a really high torque without gear:




YouTube - Festo Linear Motor Axis DNCE-LAS

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post #204 of 449 (permalink) Old 04-08-2011, 08:19 PM Thread Starter
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Animation showing how using venturi nozzle drives the gyroscope to the flight instruments. Historically, the aircraft was not an electric current...
But now, if we do the jets in the right size, we thus also powered electric generator...






Even used a double Venturi nozzle, in order to increase the vacuum to best drive "turbine"






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post #205 of 449 (permalink) Old 04-10-2011, 08:18 AM Thread Starter
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post #206 of 449 (permalink) Old 04-12-2011, 02:57 PM Thread Starter
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I still have some of the existing achievements Venturi Nozzle:
http://books.google.pl/books?id=RNTvti6Vmd...uri&f=false

http://64.201.227.3/~sk/J-1_All_ProductBroch.pdf

DESIGNING STEAM JET VACUUM SYSTEMS - pdf.io
http://www.nitech-vac.com/products/ejector...am_ejectors.htm




I think that the next step will be to manufacture large quantities of electricity from wind, by the use of Venturi nozzles

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post #207 of 449 (permalink) Old 04-12-2011, 04:50 PM
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Quote:
Originally Posted by Feliks Andrew View Post
I think that the next step will be to manufacture large quantities of electricity from wind, by the use of Venturi nozzles

Andrew
The problem with that Andrew, is that the wind does not always blow! The politicians who approved the construction of the many wind farms that have been built in the UK North Sea, are now realizing the folly of this adventure. Clearly, as wind-generated electricity is not reliable, it does not replace conventional electicity generation - it is provided in parallel with it.

The answer surely is to harness tidal (wave) power, as you have shown in your earlier posts.
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post #208 of 449 (permalink) Old 04-13-2011, 04:58 PM Thread Starter
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Quote:
Originally Posted by keyhole View Post
...

The answer surely is to harness tidal (wave) power, as you have shown in your earlier posts.



The Underground Windmill.

Underground windmills will be an really new alternative to the Atom





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post #209 of 449 (permalink) Old 04-16-2011, 04:12 AM Thread Starter
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Helicopter rotor blades without ???

Without blades

Dyson Air Multiplier? fan ? what people are saying

four animation.

Perhaps,perhaps...

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post #210 of 449 (permalink) Old 04-18-2011, 03:40 AM Thread Starter
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In Other Technical Forum :

Quote:
Originally Posted by hollus
That Venturi nozzle feeding a windmill-turbine is a really interesting concept.
One of the problems with current windmills is that they must be constantly pointed to the wind, not only to optimize energy generation, but also lest they might sustain some damage.
A set of nozzles, say in a six or eight pointed star arrangement, could feed a fixed windmill, which as you suggest, could now operate in a horizontal plane and be sustained in rails or whatever.
The nozzles, being quite solid structures, can take side winds, and one would just need to open/close the appropriate valves within the nozzle star at the right time depending on the direction of the wind, much easier and faster than rotating a whole windmill with the wind. One could also combine any number of such tunnels and stack nozzles at different heights.
The wind capturing device and the energy generating device become effectively uncoupled from each other.
About something that you think?




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