GROUP 6
INTEGRATION AND
IMPORTANCE OF THE TIDAL
ENERGY SYSTEM TO THE FIELD
OF CIVIL ENGINEERING
INTRODUCTION
Tidal power , also called tidal energy , is a
form of hydr opower which converts the
energy of tides into the useful form of
power, mainly in electr icity.
Tides ar e per iodic r ise and fall of water level
of sea which ar e caused by the action of sun
and moon on the water on the earth. They are
mainly caused by the gr avitational attraction
of the Moon & Sun on the water of solid earth
& Oceans
INTRODUCTION
The moon's force produces 70% of tides, resulting in
two high and two low tides in two tidal cycles during a
lunar day of 24 hour s and 50 minutes.
The time between high and low tides in a specific
location is appr ox imately six hours.
The term flood tide is used to describe the situation
where water levels r ise above the mean sea level.
Ebb tide occur s when the tide level is below the mean
level. This phenomenon can be harnessed to generate
tidal power for electr icity.
WORKING PRINCIPLE OF
TIDAL POWER PLANT
A d a m i s c o ns t ru c t e d i n s u c h a w a y
t ha t a b a s i n ge t s s e p a ra t e d f ro m t he
s e a a nd a d i f f e renc e i n t he w a t e r l e v e l
i s o b t a i ne d b e t w e e n t he b a s i n a nd s e a .
T he c o ns t ru c t e d b a si n i s fi l l ed d u ri ng
hi gh ti d e a nd e mp t i e d d u ri ng l ow t i d e
p a s s i ng t hro u gh t u rb i ne s.
Pot e nt i a l e ne rgy of the wa te r store d i n
t he b a s i n i s u s e d t o d ri v e t he t u rb i ne
w hi c h i n t u rn ge ne ra t e s e l e c t ri ci t y a s
i t i s d i re c t l y c o u p l e d t o a n a l t e rna t o r.
The generati o n of power stops only when the
sea level and the tidal basin level are equal. For
the generati o n of power economic all y using
this source of energy requires some minimu m
tide height and suitable site.
EXAMPLES
Kislaya
power
plant
Rance
power
plant
Russia
France
MAIN PARTS OF TIDAL POWER PLANT
Barrage
Sluice Gate
Turbine and
Generator
Holds the
water back
during the
hightide
Makes the
water passes
Resulting in
electricit y
generation
TIDAL BARRAGE
A tidal barrage is a dam-like
structure used to capture
the energy from masses of
water moving in and out of
a bay or river due to tidal
forces.
SLUICE GATES
The sluice gates are left open during high tide
and closed during low tide to create a water
level differential, creating a potential
difference that powers the turbine when the
water is released.
TIDAL STREAM GENERATOR
01
02
03
Tidal stream generators are very similar to
wind turbines except their below the water
surface instead of above or on land.
The turbine and generator converts the
movement of water coming from change
in tide, the kinetic energy, into electricity.
Water is 830 times denser than air and
therefore can generate electricity at
lower speeds than wind turbines.
TIDAL ENERGY
SIGNIFICANT ROLES
Reduced Carbon Footprint:
Ti dal energy systems pro duce
electrici ty
wi thout
emi tting
greenhouse gases, co ntributi ng
to the reduction o f carbon
footprints
associated
wi th
conventional energy sources .
TIDAL ENERGY
SIGNIFICANT ROLES
Infrastructure Development:
Civil engineers play a c rucial role in
designing
these
structures
to
withstand
t he
harsh
marine
environment and ensure effici ent
energy conversion . Requires the
design
and
construction
of
specialized infrastructure, including
tidal turbines, bar r ages, and other
supporting structures .
TIDAL ENERGY
SIGNIFICANT ROLES
Coastal Protection and Flood Control:
Tidal ene rgy systems, such
as tidal barrages, can also
serve as coastal protection
infrastructure by reducing
the impact of storm surges
and tidal flooding .
TIDAL ENERGY
SIGNIFICANT ROLES
Resource Assessment and Site Selection:
Civil engineers are in volved in ass essin g
tidal energ y resource s and selec ting
suitable sites for installation . They us e
their
expertise
in
geotechnic al
enginee ring,
structural
enginee ring,
and coastal eng ineerin g to evaluate th e
feasibility and sustai nability of tidal
energy projects.
TIDAL ENERGY
SIGNIFICANT ROLES
Structural Design and Stability:
Civil engineers are involved in asse ssing
tidal
energ y
re sources
an d
sele cting
suitable sites fo r install ation . They us e their
expertis e in geotech nical engineering,
struc tural
engineeri ng,
and
coastal
enginee ring to evaluate the fe asibility and
sustainability of tidal energy projects .