How electrcity is converted
from Tidal energy and
distribution of nuclear energy
By Shaniah Bejoy
Tidal Energy
*Tidal energy is power produced by the surge of
ocean waters during the rise and fall of tides. *Tidal
energy is a renewable source of energy.
How it was found
*During the 20th century, engineers developed ways
to use tidal movement to generate electricity in
areas where there is a significant tidal range—the
difference in area between high tide and low tide.
* All methods use special generators to
convert tidal energy into electricity.
Tidal energy
generators
*There are currently three different ways to get tidal energy: tidal
streams, barrages, and tidal lagoons.
*For most tidal energy generators, turbines are placed in tidal
streams.
*A tidal stream is a fast-flowing body of water created by tides.
* A turbine is a machine that takes energy from a flow of fluid.
*That fluid can be air (wind) or liquid (water).
*Because water is much more dense than air, tidal energy is more
powerful than wind energy.
* Unlike wind, tides are predictable and stable.
*Where tidal generators are used, they produce a steady, reliable
stream of electricity.
How it converts
to electricity
*In simple terms, a tidal energy works vi
a turbine works like a wind turbine, with
blades rotating 12-to-18 times a minute
depending on tide strength.
*The turbine is connected to a gearbox
that turns a generator, creating
electricity.
Distribution of
nuclear energy
in the world
What is Nuclear
energy
*Nuclear energy is a form of energy released from
the nucleus, the core of atoms, made up of protons
and neutrons.
*This source of energy can be produced in two
ways: fission – when nuclei of atoms split into
several parts – or fusion – when nuclei fuse
together.
Distribution of
Nuclear energy
in the world
*The first commercial nuclear power stations
started operation in the 1950s.
*Nuclear energy now provides about 10% of
the world's electricity from about 440
power reactors.
*Nuclear provides about one-quarter of the
world’s low-carbon electricity.
*Nuclear is the world's second largest source
of low-carbon power (26% of the total in
2020).
*Over 50 countries utilize nuclear energy in
about 220 research reactors.
*In addition to research, these reactors are
used for the production of medical and
industrial isotopes, as well as for
training.
Countries that produce the
most nuclear power
*The United States is the largest producer
of nuclear power, while France has the
largest share of electricity generated by
nuclear power, at about 70%.*China has
the fastest growing nuclear power
programme with 16 new reactors under
construction, followed by India, which has 8
under construction.
Dangers of Nuclear
Energy
*A major environmental concern related to nuclear
power is the creation of radioactive wastes such as
uranium mill tailings, spent (used) reactor fuel, and
other radioactive wastes. *These materials can remain
radioactive and dangerous to human health for
thousands of years.
Thank
You