This document summarizes a seminar presentation on underwater windmills. It discusses the history of underwater windmills, how they work, their main parts like turbines and generators, and types like vertical axis and horizontal axis mills. It also covers advantages like being renewable with no emissions, and disadvantages like high initial costs and difficult maintenance. India's plans for an underwater windmill project in the Gulf of Kutch is also summarized.

2. A
Seminar
on
UNDERWATER WINDMILL
PRESENTED BY
Mr. More Saurabh Vishwas
(SHE-2014/023)

3. CONTENT
 Underwater windmill
 Name justification
 History
 Main parts
 Principle of operation
 Working
 Types of underwater windmill
 Turbines placed under water
 Maintenance of underwater
windmill.
 Under water wind mill in India
 Advantages
 Disadvantages
 Conclusions
 References

4. INTRODUCTION
 An Underwater windmill like a device that extracts power from the
tides.
 Favorable alternative to conventional energy sources to replace
fossil fuel related issues.
 Tidal energy offers a vast and reliable energy source.
 Similar to wind energy technology, with the rotor blades driven not
by wind power but by tidal currents.
 Production of electricity.

5. NAME JUSTIFICATION
 Basically it is a “windmill in
the water” or as it’s looking
like a wind mill & are installed
on the ocean floor and large
river bed, that means these are
under the water.

6. HISTORY
 Until late nineteenth century windmills wound only produce
mechanical power of their tasks such as granting or plumbing water.
 The first windmill used to produce electrical energy was created in
1888 by Charles F brush.
 The first tidal power station was the Rance tidal power plant built
over a period of 6 years from 1960 at La Rance (France).It has 240
MW installed capacity.
 254MW Sihwa lake tidal power in South Korea is the largest tidal
power installation in the world completed in 2011.

7. MAIN PARTS
 Turbines
 Gearbox
 Generator
 Cables
 Foundations

8. PRINCIPLE OF OPERATION

9. WORKING

10. TYPES OF UNDERWATER
WINDMILL
VERTICAL AXIS MILL HORIZONTAL AXIS MILL
 The rotor shaft is
perpendicular to the
direction of flow of water.
 The rotor shaft is horizontal
to the direction of flow of
water.

11. TURBINES PLACED UNDER WATER
 Turbines running under
water without harming
the water animals.
 Turbine placed under
water to consume
ocean power.

12. Turbine Placed Under The Sea & Rotating In The Direction Of Flow

13. MAINTENANCE OF UNDERWATER
WINDMILL

14. India joined the tidal power wave with the approval of
commercial scale tidal power plant in Gulf of Kutch.
The 50 MW plant will be developed by the London
based company Atlantis Resources Corporation.
This plant should be operated by 2013, making it with the
first of its kind in Asia.
Company indicated that the it produces as much as
300MW with total cost $165 million.
UNDERWATER WINDMILL IN INDIA

15.  Since 2009, Atlantis has been working with GPCL to complete the
concept design and consenting for a 250MW project in the Gulf of
Kutch.
 The primary development site is located towards the center of the
mouth of the Gulf of Kutch, fewer than 17km to the south of
Mandvi Beach.
 The Gujarat state government has awarded grant funding to GPCL
to support.
CONTINUE

16. ADVANTAGES
 Completely renewable.
 No emissions of gases.
 Hidden beneath the water.
 Have lesser impact on the environment.
 Low running cost.
 Long lifetime with little maintenance.
 Reduces the dependence upon fossil fuels.

17. DISADVANTAGES
 The initial cost is too high.
 Very difficult to install.
 The blade must be coated to avoid corrosion.
 Damages habitat up to 500m away.
 Maintenance is difficult.

18. CONCLUSIONS
 Clean energy
 Low cost
 No need of land.
 Reduces dependence on fossil fuels.

19. REFERENCES
 www.google.com
 www.wikipedia.com
 www.studymafiya.com