Tidal energy harnesses the natural rise and fall of ocean tides to generate electricity through various technologies. Tidal barrages utilize dams and turbines to capture the potential energy from changing water levels between high and low tides. Tidal fences and tidal turbines operate similarly to wind turbines, using the kinetic energy of fast ocean currents to turn turbine blades connected to generators. While tidal mills used tides centuries ago, modern attempts to harvest tidal power have focused on tidal barrages and turbines that directly convert tidal energy into electricity.

1. POWER PLANT DESIGN
WITH RENEWABLE
ENERGY
ME465 P1 –
C2
REPORTERS:
Camson, Antonio Czabin L.
Dabalos, James Edward T.
Fukuda, Yumi C.

2. Part
1
INTRODUCTION

3. Tidal energy is power produced by the
surge of ocean waters during the rise
and fall of tides.

4. The natural rise and fall of tides brought on by the
gravitational interaction of Earth, the sun, and the moon
results in a source of energy known as tidal energy.

5. The ocean can also produce other types of energy, such
as waves, enduring ocean currents, and variations in
seawater's temperature and salinity. Coastlines often
experience two high tides and two low tides daily.

6. tidal electricity can be created from several technologies
TIDAL BARRAGE
TIDAL FENCES
TIDAL TURBINES

7. The most efficient tidal energy source, it is a dam that
utilizes the potential energy generated by the change in
height between high and low tides. This energy turns a
turbine or compresses air which in turn creates electricity.

8. These are turbines that operate like giant turnstiles. which
directly exploits fast-flowing underwater ocean currents for
energy generation.

9. Like wind turbines only underwater in both cases electricity is generated when the mechanical
energy of tidal currents turns turbines connected to a generator the generator produces
electricity. Ocean currents generate relatively more energy than air currents because ocean
water is 832 times denser than air and therefore applies greater force on the turbine.

10. Part
2
Theories & history

11. Over a thousand years ago, people in Europe used tidal energy to power grain mills.
Water from incoming tides was stored in ponds, and waterwheels were used to grind grain.
The 19th century saw the introduction of this method of producing energy by employing falling
water and rotating turbines. Initial attempts at tidal power facilities included a barrage strategy
like a dam. But ultimately, the industry has not stayed focused on this.
HISTORY

12. The periodic rise and fall of the sea's water level is known
as a tide or wave. The moon's attraction to the ocean
causes tides. Large amounts of potential energy found in
tides are exploited to produce electricity.
THEORY/ PRINCIPLE

13. TIDES
Around the Earth, there are always two high tides and two
low tides. The longitude closest to the Moon has one high
tide, whereas the longitude farthest from the Moon has the
other. The tidal range is the height difference between
high tide and low tide.

14. Part
1
Sample problems