Power Generation
1. Tidal Barrages:
ü Concept: Dams (barrages) are built
across an estuary or bay to capture water during high tide.
ü Energy
Generation: As the tide recedes, water is released through turbines,
generating electricity.
ü Advantages: Can generate large amounts
of power due to the large tidal range.
ü
2. Tidal Stream Generators:
ü Concept: Turbines, similar to
underwater wind turbines, are placed in areas with strong tidal currents.
ü Energy
Generation: The movement of water spins the turbine blades, generating
electricity.
ü Advantages: Less environmental
impact than barrages, as they don't require large dams.
ü Disadvantages: May not be able to
generate as much power as barrages, and suitable locations with strong currents
are limited.
3. Tidal Lagoons:
ü Concept:
Enclosed
areas (lagoons) are built, often using man-made walls, to capture and release
tidal water.
ü Energy
Generation:
Water
flows in and out of the lagoon through turbines, generating electricity.
ü Advantages:
Offers
a more flexible approach than barrages, with potentially less environmental
impact.
ü Disadvantages:
4. Dynamic Tidal Power:
ü Concept: A theoretical method
involving long dams built perpendicular to tidal flows, creating a difference
in water height.
ü Energy
Generation: As the tide moves along the dam, it creates a difference in water
level, which can be used to generate power.
ü Advantages: Potentially
large-scale power generation.
ü Disadvantages: Still largely
theoretical and not yet implemented.
5. Tidal Fences:
ü Concept:
Turbines are mounted within a
fence-like structure, placed across a channel.
ü Energy
Generation:
Water is forced through the turbines
as the tide flows, generating electricity.
ü Advantages:
Can be a more cost-effective option
in certain locations.
ü Disadvantages:
May not be suitable for all
locations, and potential impacts on marine life.
6. Video Link:
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