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What is the theory behind generating electricity through hydroelectric power?
Wiki User
∙ 10y ago
The main theory is that in a closed system, water at a high physical level runs downhill to a lower physical level. This water flow through the generators turbine blades induce the turbine to turn. Control of the water flow through the blades controls the speed of the turbine generator. The head pressure and volume of the water govern the size of the generator that is connected to the turbine.
Wiki User
∙ 10y ago
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How is hydropower use today?
generating electricity without using fossil fuels or nuclear energy The uses of hydroelectricity are the same as any other form of electricity--your device can't tell the difference between hydroelectricity, coal electricity, natural gas electricity or nuclear electricity.
Who are the people behind the development of electricity and magnetism?
me
What is electricity's origin?
...by passing high speed water through turbines that drive generators to make electricity. You tend to need reservoirs behind big dams to do this, in order to have enough water, although small scale HEP can be got from converted water wheels.
What elements is a good conductor of heat and electricity Carbon Chlorine Neon or Silver?
Silver is the 2nd best conductor; behind gold and ahead of copper.
What is the term for the distributed water left behind as a boat moves through the water?
Wake
How do rivers help in hydroelectric power?
River water builds up behind dams. It then runs through pipes in the dam wall and spins turbines, generating electricity.
Where does hydroelectric power come from?
What is hydroelectric power?Water is needed to run a hydroelectric generating unit. It's held in a reservoir or lake behind the dam, and the force of the water being released from the reservoir through the dam spins the blades of a turbine. The turbine is connected to the generator that produces electricity. After passing through the turbine, the water reenters the river on the downstream side of the dam.My father used to work at Amoskeag Hydro in Manchester, NH when I was growing up.If the Dam cracks and smashs down to rubble then the town its generating energy is about to have a flood :)
What are the production steps in a hydroelectric power plant?
A dam is built on the river and water gathers behind the dam.Water, under pressure, flows through pipes at the bottom of the dam, turning electricity generators.This electricity is fed into the grid and delivered to factories and households?
How is hydroelectric power formed?
Hydroelectric power is formed by harnessing the energy of flowing water to generate electricity. Water stored in a reservoir behind a dam is released, flowing through turbines which convert the kinetic energy of the moving water into mechanical energy that drives a generator to produce electricity.
What is hydrogwe energy?
There is no such thing as "hydrogwe" energy. However "hydroelectric" energy is electricity generated from falling water (such as that held behind a dam.
How does a hydroelectric plant work?
Hydroelectric power, or hydroelectricity, is generated by the force of falling water. (Hydro comes from the Greek word for water.) It’s one of the cleanest sources of energy, and it’s also the most reliable and costs the least. Water is needed to run a hydroelectric power-generating unit. The water is held behind a dam, forming an artificial lake, or reservoir. The force of the water being released from the reservoir through the dam spins the blades of a giant turbine. The turbine is connected to the generator that makes electricity as it spins. After passing through the turbine, the water flows back into the river on the other side of the dam.Electricity is produced by spinning electromagnets within a generator’s wire coil that creates a flow of electrons. To keep the electromagnets spinning, hydroelectric stations use falling water. Hydroelectric power plants convert the kinetic energy contained in falling water into electricity. The energy in flowing water is ultimately derived from the sun, and is therefore constantly being renewed. Energy contained in sunlight evaporates water from the oceans and deposits it on land in the form of rain. Differences in land elevation result in rainfall runoff, allowing some of the original solar energy to be captured as hydroelectric power. Most hydroelectric stations use either the natural drop of the river or build a dam across the river to raise the water level and provide the drop needed to create a driving force. Water at the higher level (the forebay,) goes through the intake into a pipe, called a penstock, which carries it down to the turbine. The turbine is a type of water wheel that converts the water's energy into mechanical power. The turbine is connected to a generator, and (4) when the turbine is set in motion it causes the generator to rotate, producing electricity. The falling water, having served its purpose, exits the generating station through the draft tube and the tailrace where it rejoins the river.At Ontario Power Generation (OPG), hydroelectric generation is their lowest-cost power source, producing approximately 34 terawatt-hours in 2002. OPG operates 36 hydroelectric stations, as well as 29 small hydroelectric plants and 240 dams on 26 river systems. The smallest station has a generating capacity of just 1 megawatt; the largest more than 1,300 megawatts.
What is hydro-electric energy?
Hydro-electric energy is the energy captured from the movement of water. Usually a dam is built which stores the water behind it. Water is released through the dam turning turbines which generate electricity.
How is electricity produced from falling?
Water behind a dam falls down through giant turbines which are connected to great generators, which make electricity because they are turning.
How does hydroelectric works?
hydroelectric works by water falling from the air (rain)
How do hydroelectric power stations generate electricity?
Water is stored at a height behind the dam. It is then allowed to fall through special channels in the dam, gathering speed as it goes (the potential energy being turned into kinetic). Near the bottom it goes through several turbines, which turn large magnets inside coils of wire (turning the kinetic energy into electrical) and the water is then allowed to continue its flow through the river.
How is hydroelectric energy created?
Hydroelectricity is a method of producing electricity from flowing water. A large area of water - typically held behind a dam - is forced (by it's own weight) through a turbine generator, which makes the generator spin. When the generator spins, magnets attached to the turbine portion move past magnets mounted on the generator walls just outside the turbine. This produces electrical current, which is harnessed as electricity.
What are some sources of hydroelectric energy?
That would be water. Water from rivers being very popular with the hydroelectric dams. Storing its potential energy behind the dam.
