WHY TIDAL GENERATORS CAME INTO
RENEWABLE ENERGY SOURCE
IMPROVED ENERGY SECURITY
MOST EFFICIENT ENERGY RESOURCE
NO GREENHOUSE GAS EMMISION
TIDES & TIDAL POWER:-
Rise and fall in sea levels
Caused by the combined effect of
moon and sun.
Tides are quite predictable.
Consists of a turbine & an electrical
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.
TIDAL STREAM GENERATORS:-
It make use of kinetic energy
of moving water.
The power taken by turbine is
It’s design is similar to
wind turbines but it’s
performance is better.
TIDAL V/S WIND TURBINES:-
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.
DYNAMIC TIDAL POWER:-
DTP is an untried but
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.
Inexhaustible energy resource
Most efficient energy source
No green house gas emission
Protect from dangerous tides
High investment at start
Can not produce electricity continuously
FUTURE OF TIDAL GENERATERS:-
Sihwa Lake Tidal Power Station(254MW) in South
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.
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.
Marine tidal current electric power generation: State of
art ¤t status
-Yun Seng Lim & Siong Lee Koh
University of Tunku Abdul Rahman