Hydroelectric, turbines, dams, power plants, hydraulic energy, mechanical energy, Pelton turbine, Francis turbine, Kaplan turbine, electricity, energy, nuclear energy, renewable energy, tourism, water, lakes, ecosystems, ecosystems degradation, environmental pollution
The gravity dam, in concrete or stone, is the simplest and heaviest dam. It is vertical in relation to the reservoir and inclined in relation to the valley. It relies only on the ground. Thus, it opposes all its mass to the pressure of water.
[...] The different types of turbines A turbine is a rotary motor driven by a vein of water that converts most of the hydraulic energy into mechanical energy. There are three main types of turbines. C. The different types of turbines The Pelton turbine: The Pelton turbine is used in high falls 200 with low flow rates (20 to 1,000 l/s). C. The different types of turbines The Pelton turbine: It is equipped with spoonshaped troughs that are placed around the wheel and receive water through one or more injectors. [...]
[...] Disadvantages Conclusion Introduction problematic How can hydropower meet tomorrow's electricity needs? I. Operation A. The different types of dams In concrete or stone, it is the simplest and heaviest. It is vertical in relation to the reservoir and inclined in relation to the valley. It relies only on the ground. Thus, it opposes all its mass to the pressure of water. A. The different types of dams Made of concrete, it is partly based on rock walls. Thanks to its curved shape, it carries the water pressure back to the banks. [...]
[...] The water enters the periphery of the wheel and comes out on the side. It has good yields. C. The different types of turbines The Francis turbine: its rotational speed is fast (up to 1,000 rpm). It is generally used when the available flow rate varies slightly over time. C. The different types of turbines Kaplan turbines and propellers are the most suitable for turbinage small falls (less than 20 m). High flow rates (300 to 10,000 l/s). They are characterized by their wheel which is like a boat propeller whose blades are adjustable in operation (Kaplan) or fixed (propellers). [...]
[...] Distribution of Energy Here is a comparison between hydropower and nuclear energy Type of energy Power range Lifespan Average cost (kWh) hydraulics 1kW à MW 100 years 0,03 euro /kWh nuclear 600 MW à 5000 MW 50 years 0,04 à 0,1 euro/kWh II. Advantages Benefits Renewable energy. No CO2 emissions. Longevity of dams. Tourist attractions. Water from the lake can be used for irrigation. III. Disadvantages Disadvantages Displacement of populations. Ecosystem degradation. Destabilization and collapse. Environmental pollution. In winter, the water freezes. conclusion An inexhaustible resource that makes it possible to make clean energy with an infinite cycle, but which destroys its surrounding environment and endangers fauna and flora. [...]
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