Hydropower
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Hydroelectricity, or hydroelectric power, uses the energy from flowing or falling water to operate turbines that spin generators to produce electricity. Dams are often used to store water in reservoirs that is then released to flow through turbines, turning them to generate electricity. The largest current hydroelectric project is the Itaipu Dam between Brazil and Paraguay, although the Three Gorges Dam in China will become the largest once completed.
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Hydroelectric power plants harness the kinetic energy of flowing water to generate electrical power. There are several types of hydroelectric power plants classified by their hydraulic characteristics and operating head. Run-of-river plants utilize minimum river flows without storage, while storage plants feature upstream reservoirs. Pumped storage plants pump water back uphill during off-peak hours. Tidal plants use the difference between high and low tides. Classification by head includes low-head (<15m), medium-head (15-60m), and high-head (>60m) schemes. The major components of a typical hydroelectric scheme are the intake, penstocks, turbines, generators, and powerhouse. Impulse turbines like Pelton wheels and reaction turbines
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This presentation summarizes key aspects of hydroelectric power plants. It introduces hydroelectricity as a renewable energy source that converts the kinetic energy of flowing water into electricity. It then discusses applications of hydroelectric power, providing examples of how hydroelectric plants can supply base load and peak load power. The document proceeds to describe the Kaptai hydroelectric power plant in Bangladesh as a case study, detailing its dam, reservoir, and power generation capacity. It concludes by outlining the essential components and schematic arrangement of typical hydroelectric power stations.
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The document provides information about hydro power, including its history, types of hydro power plants, components and working, and case study of Hirakund Dam in India. Some key points:
1) Hydropower harnesses the kinetic energy of flowing water and is considered renewable as water sources are replenished.
2) Types of hydro power plants include run-of-river, reservoir, and classifications based on head of water and load.
3) Hirakund Dam is the longest earthen dam in the world located in India. It displaced over 22,000 families but provides irrigation and nearly 300MW of power.
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The document discusses several large hydroelectric power plants around the world. It provides details on three major hydroelectric plants:
1) The Itaipu Dam on the Brazil/Paraguay border which has an annual production of over 90 billion kWh and is one of the largest hydroelectric plants in the world.
2) The Three Gorges Dam in China which is the largest hydroelectric dam ever built and has an installed capacity of over 22 GW.
3) The Grand Coulee Dam in the US which has an installed capacity of over 6.8 GW and is the largest power producing facility in the country.
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The document discusses hydro power plants, including their essential elements and working principle. A hydro power plant uses the potential energy of stored water behind a dam to turn turbines and generate electricity. The main components are the dam, water reservoir, control gates, penstock (pipe), water turbines, and generators. Water flows from the reservoir through the penstock and its kinetic and potential energy is converted to rotational energy by the turbines. This spins the generator to produce electricity. The only hydroelectric plant in Bangladesh is the 230 MW Kaptai Dam located on the Karnaphuli River.
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Hydropower harnesses the kinetic energy of moving water to generate electricity. It has been used for centuries to power mills and factories. Modern hydropower plants first emerged in the late 19th century and have since become a major source of renewable energy worldwide. Hydropower is classified based on factors like plant size and head. Key components include dams, reservoirs, penstocks, turbines, generators, and transformers. While hydropower has significant advantages as a clean energy source, new plants also face environmental challenges and changing water availability due to climate change. Many regions still have potential to expand sustainable hydropower development in the future.
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The document provides information about hydro power, including its history, types of hydro power plants, components and working, and case study of Hirakund Dam in India. Some key points:
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2) Types of hydro power plants include run-of-river, reservoir, and classifications based on head of water and load.
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The document discusses several large hydroelectric power plants around the world. It provides details on three major hydroelectric plants:
1) The Itaipu Dam on the Brazil/Paraguay border which has an annual production of over 90 billion kWh and is one of the largest hydroelectric plants in the world.
2) The Three Gorges Dam in China which is the largest hydroelectric dam ever built and has an installed capacity of over 22 GW.
3) The Grand Coulee Dam in the US which has an installed capacity of over 6.8 GW and is the largest power producing facility in the country.
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The document discusses hydro power plants, including their essential elements and working principle. A hydro power plant uses the potential energy of stored water behind a dam to turn turbines and generate electricity. The main components are the dam, water reservoir, control gates, penstock (pipe), water turbines, and generators. Water flows from the reservoir through the penstock and its kinetic and potential energy is converted to rotational energy by the turbines. This spins the generator to produce electricity. The only hydroelectric plant in Bangladesh is the 230 MW Kaptai Dam located on the Karnaphuli River.
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The document provides information about hydroelectric power plants. It discusses the key components of hydroelectric plants including dams, reservoirs, penstocks, turbines, and generators. It explains how hydroelectric plants work by harnessing the potential and kinetic energy of flowing water to turn turbines and generate electricity. The document also provides statistics on global hydroelectric production and discusses the history and environmental impacts of hydroelectric power.
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- A penstock that channels water down to spin the turbine blades
- A turbine whose rotation is converted by a generator into electricity
While renewable, hydroelectric plants have environmental impacts such as disrupted ecosystems and flooding of land.
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- 1. How water turbines can be used to produce electricity (energy)
- 2. Hydroelectricity, or hydroelectric power, is a form of hydropower that uses the energy released as a result of water falling, or flowing downhill. The energy contained in the flowing water is used to produce electricity by operating some form of generator. For example the water turbine. http://www.sundermann.com.au/Sunderman http://encyclopedia.kids.net.au/page/hy/Hydroele ctric_power
- 3. Hydroelectric power is usually generated at dams or other placed where water falls from a height. The energy that may be extracted from water is not measured by the volume of water, although the volume is important for keeping the turbine moving. Wellington Dam http://www.entura.com.au/our-credentials/our- projects/wellington-dam-remedial-works http://encyclopedia.kids.net.au/page/hy/Hydroele ctric_power
- 4. Around 19% of the world electricity is generated this way and in 2005, accounted for more than 63% of the total electricity generated from renewable sources. Currently the largest hydro electric project in the world is the Itaipu Dam with total capacity of 12,600 megawatts on the border of Brazil and Paraguay. However, on completion, China's massive "Three Gorges Dam" will be the largest. http://encyclopedia.kids.net.au/page/hy/Hydroele ctric_power
- 5. http://www.worldtourismplace.com/itaipu-dam-one- of-seven-wonders-of-the-modern-world/ http://encyclopedia.kids.net.au/page/hy/Hydroele ctric_power
- 6. A typical hydro-electric scheme consists of a dam behind which a reservoir of water is held. When electricity is in demand, valves will be released, allowing the water to flow downhill to a power station where turbines will be made to turn by the force of the water flow. Connected to generators, electricity can be produced. The water is then allowed to return to the original riverbed or a nearby river. http://encyclopedia.kids.net.au/page/hy/Hydroele ctric_power