Transcript Nuclear energy

Renewable and nonrenewable sources for energy
in our countries and effects of
radiation on human health.
Diffrent seasons, diffrent problems!
RENEWABLE ENERGIES
Definition:The power of renewable energy from the sun, is thought to
depletion of energy sources that do not harm the environment.
Examples:
1-Hydroelectric Energy:
Established rivers, dams, electricity is generated through motion of the
water.
hydro energy
Due to the low-lying area of ​the country, possibilities of using Polish rivers are not too
remarkable. Currently operate here already 127 large power plants and approximately 300
small ones.
Hydroelectric power plant on the Vistula.
Poland
Non-renewable
Nuclear energy
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Coal is a non-renewable energy source because it
takes millions of years to create. The energy in
coal comes from the energy stored by plants that
lived hundreds of millions of years ago, when the
earth was partly covered with swampy forests.
The United States produces half of its electricity from
coal. China uses coal to generate more than threefourths of its electricity. Australia, Poland, and South
Africa produce an even greater percentage. Overall,
coal makes up 2/5 of the world’s electricity generation.
Nuclear energy is energy in the nucleus of
an atom. Atoms are tiny particles that make
up every object in the universe. There is
enormous energy in the bonds that hold
atoms together.
Nuclear energy can be used to make
electricity. But first the energy must be
released. It can be released from atoms in
two ways: nuclear fusion and nuclear
fission.
The United States produces more nucleargenerated electricity than any other country,
nearly 1/3 of the world’s total. The second
largest producer is France, which generates
more than 3/4 of its electricity in nuclear
reactors.
RENEWABLE AND NON-RENEWABLE ENERGY RESOURCES- BULGARIA -
5 -Biomass (plant and animal waste) Energy:
Using energy derived from plant and animal waste is called biomass
energy.
BIOMASS 2 - WOOD PELLETS
• The cheapest energy in developped
countries (the pelletizing plants for food
cattle may be used) : 0,033 € / kWh
nuclear electricity 0,12 € / kWh 4 times cheaper
than electricity
FRANCE
What can you get with solar
energy?
We can get electricity and heat
in a natural way without
affecting the environment.
During this year, the sun
throws upon the earth four
thousand times more energy
than we consume.
BIOMASS 3 - Methanation
• The biomass
anaerobic fermentation
creates biogas which
contains 60% methane,
which is a fuel.
• This gas may be
transformed by
cogeneration into hot
water and electricity
France
EFFECTS OF RADIATION ON
HUMAN HEALTH
There are many effects of
radiation on humans.
What comes from
radioactive components?


When the radioactive components disintegrate, they
release ionizing rays. They are called this way because
they convert the neutral atoms to positive or negative
ions. These rays can be alpha-, beta-, gamma-, x-rays,
cosmic and neutral.
Some sources of ionizing rays are:
-
all devices and radioactive components;
all areas of work, which are connected with cultivation,
production, usage, conservation and transportation of natural
and other kinds of sources of ionizing rays, as well as
radioactive waste in medicine and manufacturing.
RENEWABLE AND NON-RENEWABLE ENERGY RESOURCES- BULGARIA - 5
The diseases, which can manifest themselves
at a later date include:
- Skin cancer;
- Leukemia;
- Gastrointestinal disease;
- Bone disease;
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Poland
Radon …
Radon is a naturally
radioactive gas. It comes
from the decay of uranium
which is present in the
earth's crust.
It exists mainly in granitic and
volcanic soils.
Radon decay is solid : it stays
in your lungs !
It is the second cause of lung
cancer, after tobacco.
1 200/ 3 000 deaths a year.
France 12/15
Thanks
for your attention
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