1. BY:-
Sagar Netam
Ayush Jhalani
Bhanwar Lal
PROJET CODE- OC012

2.  This project is basically about the
innovation of a new technology regarding
electricity generation
 It is the fusion of two prevailing
technologies i.e.
1. the wind energy
2. the tidal energy.

3.  A vertical tube with a large diameter, is
placed just over the sea level
 It has a turbine on its one end
 Other end of the tube will submerged in
water
 As the water level of the sea moves up and
down, the air column inside the tube
performs its to and fro motion which rotates
the dynamo which can be used to produce
energy.

4.  The water column moves up and down and
acts like a piston on the air, pushing it back
and forth
 Due to the motion of the air column the
turbine on the top of the tube rotates
 And which in turn rotates the dynamo which
leads to the generation of the electricity

5. Oscillating Water Column (OWC)

7.  As we know power generated by turbine is:
 Power =density of air * swept area*velocity
cubed/2
 P =1/2.p.A.(V*V*V)
 where, P is power in watts(W)
 p is the air density in(kg/m cube)
 A is the swept rotor area in (m squar)
 V is the wind speed in (m/s)

8.  If we take the avg. value of air density in the
costal areas, we find it is around 1.204 kg/m3
at 298k
 And radius of blades is 0.50meter
 From a survey we find that the average value
of wind speed is 1.5 m/s
 By calculation the power we can get 67kWhr
per day if efficiency is 40% and if we take the
system to work for 14 hrs

9.  This can be used to generate electricity in
mainly costal areas of India and islands
 It can help to tackle the prevailing energy
crisis in many undeveloped and developing
countries
 Predictable source of energy (compared with
wind & solar), it is independent of weather &
climate change
 Easy to install and cheap(compared with wind
& solar)

10.  Highly efficient during only 14 hrs
approximately for the rest hrs high tide and
low tides may disturb the functioning
 The tides are not so much efficient in all over
sea , so system should be installed near sea
coast

11.  Tidal energy is the most attractive method,
having reduced environmental & ecological
impacts and being cheaper & quicker
installation
 Still we did not utilize Tidal energy very much
so it’s a startup to use in a new manner

12.  A Long Tube
 One Turbine
 Two fans
 A inverter