how is electricity generated using coal and wind?

Answer 1

power from wind is caused by a electric generator what an electric generator, which is a electric motor in reverse. and coal heats up steam and moves a piston or a turbine depending on the engine you are using. but once you have the piston or turbine moving it can become electric power though a generator. a coal engine is often called a steam engine.
i added some really cool sources you can use good luck.

Answer 2

In simple terms.

To Generate electricity you need a generator, which is like a motor running in reverse (in fact turn a motor against te way it wants to run when conected to the power, and you have a generator)

Generators work by rotating a magnet in an electric field (OK, thats not simple, but the important bit is the rotating part). All mecahnical devices for generating electricity use this rotating principle to create the electricity.

So the only problem is is how to turn the generator.

In a windmill the blades catch the wind (clever stuff happens to make the blades face the wind and things), and the blades rotate - they can then be connected to a generator, rotating it and create electricity (they are often conected via a gearbox)

Using coal, you have to convert the energy in coal to another for to be used usefully, and that is normally to burn the coal to make steam. The steam, at pressure, is then used to rotate a turbine, which is conected to a generator which then turns to create the electricity

You will have to ask again if you want more info about the exact mechnics of each I think

Answer 3

Electricity produced from these two methods are actually totally different, yet similar.

Coal: The coal is actually burned as a heat source to heat water into steam. As this steam rises, it creates a "wind of steam" so to speak that turns a turbine blade (a propeller) which has magnets stuck to a rotor (that rotates as the blade turns).

Wind: The wind spins a turbine blade carried atop a large pole, hence the windmill, in the same method as the steam spins it in the steam pipe at the coal generating plant. Wind is considered the more environmentally friendly of the two since the coal burning adds hydrocarbons to the air, whereas the wind is using something natually existing to spin the turbine.

How the turbines work:
Each magnet on the rotor has the opposite polarity of the magnet on the other side. One side is positive (+), the other side is negative (-). Surrounding the edge of the turbine rotor is a coil of wire, known as a stator (since it maintains itself stationary). As the magnet spins around this coil, the electrons in the coil begin to follow the magnet that is positive, whereas the protons in the coil begin to follow the negative magnet. This flow of electrons and protons is what electricity actually is. This is how electricity is generated.

A hydroelectric power plant, such as at a dam does the same thing, but it's the water flow that spins the turbine instead of steam or wind.

If you want to see how the polarity of magnets work. Get 2 plain magnets. Put them together, and then flip one of them around and put them together again. You'll notice that one way of placing them, they will quickly grab each other and stick. The other way, they repel each other and they refuse to stick. This is because opposites attract. The negative side of the magnet will only ever stick to the positive side and vice-versa.

Answer 4

I f the question is related to industrially produced Electricity (High quantities of energy involved) the electricity produced will be high voltage constant frequency. In Europe the frequency used is 50 cycles per second. To achieve the constant frequency the A.C. Generators will have to rotate at a constant speed.

When wind is used in the wind farms the speed of the impellers is kept constant by changing the pitch. A gear box is used to transmit the motion from the blades to the generator and a speed governor changes the pitch of the blades by means of actuators.

Coal is used to boil water and produce steam. The steam drives a turbine which,through a gear box, drives at constant speed a generator in a similar fashion as the previous case.

So the wind farms are much more environmentally friendly since do not produce any CO2.

Answer 5

Both use large fans that are turned by either the wind or the heat rising by coal as the fans turn a device almost like an alternator generates electrity. That electrity is then stored in batteries or capacitors until it is used

Answer 6

Coal is burned to heat up water to create steam which inturn turns turbines to generate electricity. Wind turns propellers which are attached to turbines which turn to generate electricity. Coal plants provide around 75%
% of electricity to the US. Wind plants about 2%, nuclear around 10% and other is 3%...roughly.

Answer 7

Coal is burned to generate electricity. Wind powers windmills, which generate electricity.

Answer 8

ELECTRICITY IS GENERATED BY BURNING COAL TO CREATE STEAM WHICH IS THEN USED TO TURN DYNAMOS. WIND POWER IS USED TO TURN WINDMILLS WHICH TURN GENERATORS WHICH PRODUCE ELECTRICITY.