A Homemade Wind Turbine (Free Energy)

I DID NOT BUILD THIS OR MAKE THE VIDEO, just posting it bcz I encourage everyone to invest in their own. This is a test run of the guys newly made wind turbine.

If these links do not work, just google "Build your own Wind Generator"..

http://www.thekevdog.com/projects/wind_generator/

http://www.instructables.com/id/Ted-Baer_s-Bicycle-Wheel-Windmill/

http://www.forcefieldmagnets.com/catalog/index.php?cPath=22_30



Output depends entirely on wind speed, windy days will yeild more power.

smaller units 5'-10' average 50-500 watts
larger units 11'-20' produce on average between 500 watts-up
(professionally 21' and larger up to 7.5 Kw and up)


Power is defined as the rate at which work is done or energy is consumed. The formula for average power is acquired by dividing work by the time needed to perform work: P = W/t. Power has units of newton-meters per second or joules per second or watts

A kilowatt-hour is the electrical energy consumed in one hour at the constant rate of one kilowatt. The average household in the United States uses about 8, 900 kilowatt-hours of electricity each year.

Here are some math formulas to consider...(source: http://www.awea.org/faq/windpower.html)

Because air has mass and it moves to form wind, it has kinetic energy. You may remember from science class that:

kinetic energy (joules) = 0.5 x m x V2

where:
m = mass (kg) (1 kg = 2.2 pounds)
V = velocity (meters/second) (meter = 3.281 feet = 39.37 inches)

Usually, we're more interested in power (which changes moment to moment) than energy. Since energy = power x time and density is a more convenient way to express the mass of flowing air, the kinetic energy equation can be converted into a flow equation:

Power in the area swept by the wind turbine rotor:

P = 0.5 x rho x A x V3

where:
P = power in watts (746 watts = 1 hp) (1, 000 watts = 1 kilowatt)
rho = air density (about 1.225 kg/m3 at sea level, less higher up)
A = rotor swept area, exposed to the wind (m2)
V = wind speed in meters/sec (20 mph = 9 m/s) (mph/2.24 = m/s)

This yields the power in a free flowing stream of wind. Of course, it is impossible to extract all the power from the wind because some flow must be maintained through the rotor (otherwise a brick wall would be a 100% efficient wind power extractor). So, we need to include some additional terms to get a practical equation for a wind turbine.

Wind Turbine Power:

P = 0.5 x rho x A x Cp x V3 x Ng x Nb

where:
P = power in watts (746 watts = 1 hp) (1, 000 watts = 1 kilowatt)
rho = air density (about 1.225 kg/m3 at sea level, less higher up)
A = rotor swept area, exposed to the wind (m2)
Cp = Coefficient of performance (.59 {Betz limit} is the maximum thoretically possible, .35 for a good design)
V = wind speed in meters/sec (20 mph = 9 m/s)
Ng = generator efficiency (50% for car alternator, 80% or possibly more for a permanent magnet generator or grid-connected induction generator)
Nb = gearbox/bearings efficiency (depends, could be as high as 95% if good)

If there is any single equation that the beginning wind enthusiast should memorize, this is it.

Here Are some links...

www.blueenergy.org
www.homemade-wind-turbines.co.uk
www.otherpower.com/otherpowerfront.shtml

Other Energy resource websites..

http://peswiki.com/energy/Main_Page
http://www.absak.com/

Category:

Howto & Style

Tags:

• Wind
• Turbine

[Sky14657]

The problem is NOT to build a wind turbine, but to convert the energy into useable energy and to store it. If you go for a project like that, you'll put more money into converters and batteries than into the wind turbine itself. But after all, thanks for the video and your additional infos.

[HomeWindGenerator]

the one up higher looks more stable. mast on short one too light duty, lead to bad accident im afraid. be careful on that to make mast very stout.

[msformulax3]

___ w w w diymagneticmotor com  for FREE energy|~

[fukpolitics1]

think you might need a stronger pole lol nice to see someone actually trying to save this planet. if i had enough money id invest in making a mini damm in my local river and having a turbine running off the power of water presure. or maybe a magnet motor.

[EarlNetwal]

It's great to see projects like these.I urge people interested in creating their own personal projects to Google "How to produce solar energy" You will find guides to help you do your own.

[evelinlusby84]

Great distraction and great vide0!! thank u downloadmusic .im

[MrHaroonqarshi]

how build one



[windturbinesinc]

The wind turbine is located at its best position facing at the direction of the wind. As you can see, when the wind is gaining its full force, the wind turbine is also working heavily. It is appropriate to set up your wind turbine in a location to where the wind blows.

[bptaylor11]

@theewelder I never heard of google, thanks for the info.

[theewelder]

@bptaylor11 google.com......