Wind turbine spins some coils... = electricity???

Question

Could someone tell me how this works, because I want to construct a simple and cheap version myself, just to see if I can. How do all of the coiled wires produce electricity? Assuming I can build a windmill, how do I convert the KE into electricity? A source would be nice, in addition.

Answer 1

A wind turbine is like a water turbine in a dam, The wind spins a shaft that has fixed magnets attached to it. As these magnets turn the magnetic field induces an electrical current. This is what converts the KE to electricity. If you look for information on transformers and generators, it all uses the same principles.

Answer 2

When a moving magnetic field passes through a conductor, it causes charged particles (electrons) to flow.

So, you would have to spin a magnet inside of the coiled wire (or vice versa).

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Faraday's law of induction (more generally, the law of electromagnetic induction) states that the induced emf (electromotive force) in a closed loop equals the negative of the time rate of change of magnetic flux through the loop. This simply means that the induced emf is proportional to the rate of change of the magnetic flux through a coil.

In layman's terms, moving a conductor (such as a metal wire) through a magnetic field produces a voltage. The resulting voltage is directly proportional to the speed of movement: moving the conductor twice as fast produces twice the voltage. (The magnetic field, the direction of movement, and the voltage are all at right angles to each other. Whenever movement creates voltage, Fleming's right hand rule describes the direction of the voltage.)

The relation between the rate of change of the magnetic flux through the surface S enclosed by a contour C and the electric field along the contour...

Answer 3

the finest turbines have one transferring area, a rotor assembly, that's a shaft with blades related. transferring fluid acts on the blades, or the blades react to the flow, so as that they rotate and impart potential to the rotor. Early turbine examples are windmills and water wheels. gasoline, steam, and water turbines have a casing around the blades that contains and controls the working fluid.

Answer 4

Click on the following: -

http://www1.eere.energy.gov/windandhydro/wind_how.html#inside

And it's interactive.

If you get a simple one built, try connecting it to a bicycle light dynamo...it should work.