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Power Stations

Power Stations . Water power station s. Introduction. Hydroelectricity - electricity generated by hydropower P roduction of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy .

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Power Stations

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  1. Power Stations Waterpower stations

  2. Introduction • Hydroelectricity- electricity generated by hydropower • Production of electrical power through the use of the gravitational force of falling or flowing water. • It is the most widely used form of renewable energy. • 16 percent of global electricity generation – 3,427 terawatt-hours of electricity production in 2010. • It is expected to increase about 3.1% each year for the next 25 years.

  3. Generating methods • Conventional (dams) • Pumped-storage • Run-of-the-river • Tide

  4. Cross section • Cross section of a conventional hydroelectric dam

  5. Cross section • Cross section of ahydroelectric “battery”

  6. Turbine and generator • Hydraulic turbine and electrical generator, cutaway view. A : Generator; B : Turbine; 1 : Stator, 2 : Rotor, 3 : Wicket gate, 4 : Turbine blade, 5 : Water flow, 6 : Turbine generator shaft.

  7. Types of water turbines • PeltonTurbine • Francis Turbine • Kaplan Turbine

  8. Design and application • Kaplan 20 < H < 40 • Francis 10 < H < 350 • Pelton 50 < H < 1300

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