1. PRESENTED BY:-
SHUBHAM DIXIT
A3MA-02

2. CONTENTS:-
 INTRODUCTION
 TIDES & TIDAL POWER
 TIDAL GENERATORS
 CLASSIFICATION
(1) TIDAL STREAM GENERATORS
(2) TIDAL BARRAGES
(3) DYNAMIC TIDAL GENERATORS
 COMPARISION
 FUTURE OF TIDAL GENERATORS
 CONCLUSION

3. INTRODUCTION:-
 WHY TIDAL GENERATORS CAME INTO
EXISTANCE?
 RENEWABLE ENERGY SOURCE
 IMPROVED ENERGY SECURITY
 MOST EFFICIENT ENERGY RESOURCE
 NO GREENHOUSE GAS EMMISION

4. TIDES & TIDAL POWER:-
 Rise and fall in sea levels
 Caused by the combined effect of
moon and sun.
 Tides are quite predictable.

5. TIDAL GENERATORS:-
WORKING PRINCIPLE:-
 Consists of a turbine & an electrical
generator(alternator).
 Turbines/windmill like blades are
installed on the ocean floor.
 Turbine and generator are connected
directly or by a gearbox.
 Due to kinetic or potential energy of
sea water the turbine rotates.
 Generator rotates and produces electricity
 At shore, electricity can be distributed.

6. CLASSIFICATION
Tidal
Generator
Tidal stream
generators
Tidal barrages
Dynamic tidal
generators

7. TIDAL STREAM GENERATORS:-
 It make use of kinetic energy
of moving water.
 The power taken by turbine is
given by
P=(rCpAV3
)/2
 It’s design is similar to
wind turbines but it’s
performance is better.

8. TIDAL V/S WIND TURBINES:-
Requirement of
land.
Density
difference
predictability

9. TIDAL BARRAGES:-
 It make use of potential
energy of sea water.
 Difference in water level b/w
barrage & sea is used.
 It consist of turbine, sluice gate,
a basin to store water etc.
 During high tides the basin is
filled through sluice gate.

10. DYNAMIC TIDAL POWER:-
 DTP is an untried but
promising technology.
 an interaction between potential
and kinetic energies in tidal flows.
 Very long dams( 30–50 km length)
from coast to coast are needed.
 By this Tidal phase differences are
introduced across the dam.

11. COMPARISION :-
Advantages:-
 Inexhaustible energy resource
 Most efficient energy source
 Predictability
 No green house gas emission
 Protect from dangerous tides
Disadvantages:-
 Ecological
 Corrosion
 High investment at start
 Can not produce electricity continuously

12. FUTURE OF TIDAL GENERATERS:-
 Sihwa Lake Tidal Power Station(254MW) in South
Korea.
 Rance Tidal Power Station(240MW) in France.
 812 MW tidal barrage near Ganghwa Island (South
Korea) Completion is planned for 2015.
 A 1,320 MW barrage is proposed by the South Korean
government, with projected construction start in 2017.

13. CONCLUSION:-
 Tidal energy is a promising renewable energy source
available to the world . since the past one decade,
numerous R&D efforts have been carried out hoping
that tidal energy can become a realistic renewable
energy source one day.

14. REFERENCES:-
 http://en.wikipedia.org/wiki/Tidal_power
 http://en.wikipedia.org/wiki/Tide
 Marine tidal current electric power generation: State of
art &current status
-Yun Seng Lim & Siong Lee Koh
University of Tunku Abdul Rahman
,Malaysia
 Google images
 You tube

15. QUESTIONS
?