EZ Wind & Solar Solutions

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Archive for April, 2009

homemade Savonius rotor

Posted by admin on April 29, 2009
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No-Watts homemade Savonius rotor
“Xewat Studios”

Duration : 0:0:20

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Vertical Axis Wind Turbine Power System

Posted by admin on April 29, 2009
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Combo Rotor Vertical Axis Wind Turbine System
Range from 400W to 3KW.

Features:
1. Less Noise and good for Household application
2. Ease to start up at light wind: 2.5 m/s
3. Good Power Output (33% Capacity Performance with MPPT Power Controller)
4. Day-n-Night , 24 hours a day for 15 service years
5. Safe and Bird-hitting free
6. Small Space (within 1 square meter) for Installation
7. Less Turbulence problem

For details, please contact: eric@digitalhomeshop.net

Duration : 0:1:48

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how much electricity can a savonius wind turbine generate? HELP!!!!?

Posted by admin on April 29, 2009
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a design with two scoops(please desperate, need help,gonna fail science tomorrow)

You have to tell how big it is and how strong the wind is. A turbine with two scoops is called a wind speed indicator.

a book which would give basic information about manufacturing of small solar power generators for my home.?

Posted by admin on April 29, 2009
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wanted also book of wind generators for the same purpose.
please give the link if possible.

You will not be able to manufacture solar power cells in your own home.

see this link for solar cells.

http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4GGLR_enGB241GB243&q=solar+cells

That is like trying to manufacture a CPU in your own home, you cannot make the semi conductors.
You need a clean factory and millions of pounds worth of equipment for that.

see this link for do it yourself wind turbine.

http://www.scoraigwind.com/axialplans/index.htm

and this might help

http://www.google.com/search?sourceid=navclient&aq=t&ie=UTF-8&rlz=1T4GGLR_enGB241GB243&q=wind+generatore%2e

Have you heard of Vertical Wind Turbines being used on a industrial scale?

Posted by admin on April 29, 2009
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Just saw a program on the beeb about wind farms in New Zealand.
The main complaint was noise or subsonic vibration.
Why have all the big companies opted for the classic 3 blade turbines/// I'd heard "somewhere" that Vertical W/T were much quieter and more efficient…are they feasible on a large scale ?
I was just interessted…. thanks for any info

Yes. They are being sold commercially.

They are being considered by Princess cruise lines to provide some power while the ship is docked in port.They are also spec-ed by security companies to provide power for parking lot pole-lamps and for powering wireless security cameras atop those poles.

And yes they are very quiet.

What is the best location to set up a small wind turbine at home?

Posted by admin on April 29, 2009
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d best location wud b roof of d house

Savonius rotor

Posted by admin on April 28, 2009
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Omatekoinen savonius-roottori. Vw-jakohihnavetoinen polkupyörän napadynamo tuottaa piensähköä.
Homemade mini-windmill with bicycle dynohub. Power transfer with vw-timing belt.

Duration : 0:0:6

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Vertical Wind Turbine

Posted by admin on April 28, 2009
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1/8th scale demo of a 50kW Vertical Wind Turbine. Magnetically levitated ! For more info : platek.com

Duration : 0:0:15

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Vertical Axis Disk Wind Turbine

Posted by admin on April 28, 2009
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How the turbine works: Rotatable shutters mounted on a circular disk automatically open when directed into the wind, irregardless of the wind’s direction. Pairs of upper and lower shutters are geared together. The lower shutter acts as a counterweight to the upper shutter. The bottom shutter opens in the downward direction and its weight helps to lift the upper shutter in the upward direction, as the wind applies an opening force against both shutters. When the shutters reach the vertical position, stops prevent them from opening further and the force of the wind is transferred from the open shutters to the circular disk. And the circular disk is attached to the vertical axis for power output. The circular disk, shutters, and outer vertical axis rotate together. The outer vertical axis is mounted via bearings over an inner vertical axis that is stationery.

The shutters are blown closed by the wind (no stops in the opposite direction) as they reverse direction during their rotation and move into the wind on the opposite side of the wind turbine. When the wind is not blowing, the shutters open by gravity because the lower shutter is weighted to be slightly heavier than the upper shutter and it therefore can cause the upper shutter to open via the force of gravity as the two shutters are geared together. Wind blows against the open shutters and the open shutters with stops apply a force against the disk, but the open shutters with no stops (opposite side going into the wind) merely close due to the force of the wind (not applying a force against the disk) and the wind turbine begins spinning no matter what direction the wind comes from. Operation of the turbine is remarkably quiet as compared to the appearance of the video due to biasing members that absorb the shock of the opening and closing and provide useful energy output.

Duration : 0:0:25

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savonius water pump prototip

Posted by admin on April 27, 2009
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savonius çarklı pompanın su testi

Duration : 0:0:38

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