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Why isn't hydroelectric power green energy? Do they have to use fossil fuels for any reason at a dam? I know it causes devastation to the river's ecosystem.
thiis is from howstuffworks.com Turbine- The water strikes and turns the large blades of a turbine, which is attached to a generator above it by way of a shaft. The most common type of turbine for hydropower plants is the Francis Turbine, which looks like a big disc with curved blades.
Generators- As the turbine blades turn, so do a series of magnets inside the generator. Giant magnets rotate past copper coils, producing alternating current(AC) by moving electrons. The generator, as you might have guessed, generates the electricity. The basic process of generating electricity in this manner is to rotate a series of magnets inside coils of wire. This process moves electrons, which produces electrical current.As the turbine turns, the excitorsends an electrical current to the rotor. The rotoris a series of large electromagnets that spins inside a tightly-wound coil of copper wire, called the stator. The magnetic field between the coil and the magnets creates an electric current.
The article went on to say that the size of the resivoir will determine the amount of electricity produced. That would be a major problem.
thiis is from howstuffworks.com Turbine- The water strikes and turns the large blades of a turbine, which is attached to a generator above it by way of a shaft. The most common type of turbine for hydropower plants is the Francis Turbine, which looks like a big disc with curved blades.
Generators- As the turbine blades turn, so do a series of magnets inside the generator. Giant magnets rotate past copper coils, producing alternating current(AC) by moving electrons. The generator, as you might have guessed, generates the electricity. The basic process of generating electricity in this manner is to rotate a series of magnets inside coils of wire. This process moves electrons, which produces electrical current.As the turbine turns, the excitorsends an electrical current to the rotor. The rotoris a series of large electromagnets that spins inside a tightly-wound coil of copper wire, called the stator. The magnetic field between the coil and the magnets creates an electric current.
The article went on to say that the size of the resivoir will determine the amount of electricity produced. That would be a major problem.
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