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Dr. Vivek Kumar

INTRODUCTION.

WHAT IS TIDAL POWER..?

WORKING PRINCIPLE.

TYPES OF WINDMILL.

MATERIAL FOR BLADES.

ADVANTAGES.

DIS-ADVANTAGE.

CONCLUSION.

REFERENCES.

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Frank Whittle at the mid-1980s invented the underwater windmill.

Keeping windmill directly under water of river or ocean to generate electricity, is known as underwater windmill.

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Tidal power is one type of tidal current.

Tide is periodic rise or fall of sea water level, this resulting

from the gravitational pull of the Moon and Sun moving around the Earth’s surface.

This movement of water possesses kinetic energy , known as tidal power

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Underwater windmill works in principle, much like windmills on land, but driven by flowing water rather than air.

Anything that moves body has kinetic energy whether it's

wind or moving water too.

This kinetic energy of water is converted into mechanical energy and is further converted into electrical power.

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A. HORIZONTAL AXIS MILL:-

The rotor shaft is horizontal to the

direction of the flow of water.

B. VERTICAL AXIS MILL:-

The rotor shaft is perpendicular

to the direction of the flow of water. Rotor blades can accept the water

(tide) any point of compass.

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The minimum velocity required to rotates the windmill is 1-2 m/s.

The hydrodynamic effect of the flowing water passes over the blades causes the rotor to rotate, thus turning the generator to which the rotor is connected via a gearbox.

The gearbox is used to convert the rotational speed of the rotor shaft to the desired output speed of the generator shaft.

The electricity generated by generator is transmitted to land through cables.

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It is renewable energy source. Economically competitive with offshore wind turbines and

tidal power plant. Required less space. Tidal current turbines are constructed of far less material per

MW generated. Tidal current energy is highly predictable. Minimal noise expected during operation. Minimum EMF (electro-magnetic field) expected during

operation. Requires no fuel.

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Fishing has to be restricted in the areas of the power plant.

Damages habitat up to 500km away.

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This source is ecofriendly as it does not emits greenhouse gases like thermal and nuclear power plant.

Clean renewable energy for future human generations.

Can provide clean energy to small communities.

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Power Plant Engineering By Arora & Domkundwar Thermal Engineering By R.K.Rajput. Renewable And Efficient Electric Power Systems

By Gilbert M. Masters

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THANK YOU…!!! The end…!!!!

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