Hydroelectric power generation
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In this presentation power generation using medium of liquid or water is described properly.. students can understood it properly with help of diagrams .. Thank u
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Tidal energy harnesses the movement of tides to generate electricity. Early tidal power plants used barrages to contain water after high tide, releasing it through turbines to power generators. Newer tidal stream technologies place turbines directly in tidal currents, allowing energy production on both ebbing and surging tides. While tidal energy has the advantages of predictability and zero emissions, development has been limited by high costs and potential environmental impacts.
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Tidal energy harnesses the kinetic energy of tidal currents and the potential energy of tidal height differences to generate electricity. It is a renewable and predictable source of energy. There are several methods of tidal energy generation including tidal stream generators, tidal barrages, and tidal lagoons. While tidal energy has advantages like being sustainable and producing no emissions, it also has disadvantages such as high initial costs, potential environmental impacts, and limited locations suitable for generation. Overall, tidal energy is a green energy source but still needs technological advancements to become more cost-effective and widely implemented.
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Tidal energy harnesses the movement of tides to generate electricity. Early tidal power plants used barrages to contain water after high tide, releasing it through turbines to power generators. Newer tidal stream technologies place turbines directly in tidal currents, allowing energy production on both ebbing and surging tides. While tidal energy has the advantages of predictability and zero emissions, development has been limited by high costs and potential environmental impacts.
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Hydroelectric power plants capture the energy of flowing water to generate electricity. The most common type uses a dam to store water in a reservoir, then water released through turbines spins a generator. Dams are expensive to build and can cause environmental issues like flooding habitat, but hydro provides renewable energy without pollution. Hydroelectric power works best where there is abundant water, steep valleys to build dams, and nearby demand for electricity.
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Electrical power can be generated through nuclear power stations. In these stations, nuclear fission of heavy radioactive elements like uranium-235 or thorium-232 produces huge amounts of energy. This energy is used to heat water and produce steam that drives turbines, which spin generators to produce electricity. The basic process is similar to fossil fuel power plants, but it does not produce greenhouse gases. Nuclear power stations have advantages like low fuel costs and small land area requirements compared to other power sources. However, they also have disadvantages such as high initial costs, radioactive waste production, and safety concerns.
T&S_ppt final for Hydro Electric Power Plant Presentation
Hydropower harnesses the kinetic energy of flowing water to generate electricity. The amount of electricity generated depends on the water flow rate and head (drop height). Greater flow and head produce more power. Humans first used waterwheels to harness water's kinetic energy for tasks like grinding grains. Modern hydropower plants use turbines connected to generators to convert the kinetic energy of falling water into electric power transmitted via power lines. The world's theoretical and technical hydropower potential is large, but only a fraction has been developed so far, with opportunities existing worldwide.
HS presentation .doc
This document provides information about a water works project submitted by 7 students from the University of Gondar Institute of Technology. It includes definitions and components of hydropower plants, including dams, forebays, penstocks, turbines, and more. It also discusses estimating power potential through flow duration analysis and curves. The document is technical in nature and provides details about designing and constructing hydroelectric power infrastructure.
hydro power ppt in digital ekectronics ppt
Hydropower is a renewable energy source that generates electricity from water power. It works by channeling flowing water through turbines to produce kinetic energy. There are four main types of hydropower systems: run-of-river, which uses a canal to divert river water to turbines; storage systems, which use dams to store water in reservoirs and release it to drive turbines; pumped storage, which pumps water between reservoirs to produce energy during peak demand; and offshore systems that harness tidal currents or waves. Hydropower provides clean, flexible energy but can impact habitats and organisms and production depends on water availability.
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Hydroelectric power generation
- 1. Presented By : Digvijay Singh
- 2. Hydropower energy is ultimately derived from the sun, which drives the water cycle. In the water cycle, rivers are recharged in a continuous cycle. Because of the force of gravity, water flows from high points to low points. There is kinetic energy embodied in the flow of water.
- 3. Flowing water is directed at a turbine (remember turbines are just advanced waterwheels). The flowing water causes the turbine to rotate, converting the water’s kinetic energy into mechanical energy.
- 4. How a Hydroelectric Power System Works
- 6. It consists of the following : 1. Nozzle : Nozzle is required for high velocity of water. 2. Turbine : Generally, Kaplan and Francis turbines are used . 3. Rectifier : Converts AC to DC. 4. Transformer : Used to vary voltage supplied.
- 7. It works on the principle that when the high velocity of water is applied with a force on the blades of turbine it will rotate along with the main shaft. An alternator is mounted on the main shaft which used to converts rotary motion to electrical energy. A rectifier is connected to it which helps to convert AC supply to DC supply. Thus , electricity is generated with the help of water turbine.
- 8. 1. Once a dam is constructed, electricity can be produced at a constant rate. 2. If electricity is not needed, the sluice gates can be shut, stopping electricity generation. The water can be saved for use another time when electricity demand is high. 3. The lake's water can be used for irrigation purposes. 4. When in use, electricity produced by dam systems do not produce green house gases. They do not pollute the atmosphere.
- 9. 1. Dams are extremely expensive to build and must be built to a very high standard. 2. The high cost of dam construction means that they must operate for many decades to become profitable. 3. The flooding of large areas of land means that the natural environment is destroyed. 4. The building of large dams can cause serious geological damage. For example, the building of the Hoover Dam in the USA triggered a number of earth quakes and has depressed the earth’s surface at its location.
- 10. Thank You