1. Energy
Alain Álvarez Fernández
Mª de los Reyes García Fuentes

2. Index
Energy definition Renewable energy
Types of energy Non-renewable energy
Energy sources Types of powe stations

3. Energy definition
The energy have several definitions in relation
with the capacity of do a work, transform or
put in movement.
In physic its definition adapt to the realization
of a work, while in technology and economy
its refers to a natural resource, to obtain it,
transform it and get it an useful use.

4. Mechanical energy
It is the energy resulting in
the position and the the
movement of a body, so
that the set of kinetic
energy and the potential.It
shows the capacity that
the bodies with mass have
to realice a work.
There are two types: Kinetic
and potencial.

5. Potencial energy
It is the energy that
measured the capacity
that have a body or a
system to realice a work,
in functions of its position
or configuration. It can
represent like: potential
and gravitatory energy,
potencial and electrostatic
energy and potencial and
elastic energy.

6. Kinetic energy
The kinetic energy of body is the
energy that one body has when
its in movement. It define like the
work necesary for speed a body,
with a concret mass since from
the rest to the adequate velocity.
Once time obtained this energy
during the accelertion, the body
maintain its kinetic energy unless
the velocity change. For the body
back to its state of calm its
necesary a negative work of the
equal magnitude that its kinetic
energy.

7. Electrical energy
Its called electric energy to the
form of energy that arining
of the existence of the
potential energy between
two point, which enables to
create an electric current
between them, when an
electric driver put them in
contact and get the work.
This energy is transform
into very types of energy,
like light energy, mechanical
and thermal.

8. Electromagnetic energy
Is the amount of energy
stored in a place of the
space that can be
applied with the
presence of an
electromagnetic field, ,
which is represented in
function to the
intensities of electric
and magnetic field.

9. Sound energy
Also called acoustic energy. Is the
energy that transport the sound
waves. Cames from the
vibrational energy of the sound
focus and diffuses to the
particles that passed as kinetic
and potential energy. This
energy transmitting to the
waves velocity, but part of it
desapears as thermal energy. its
unit of measureis the Jules (J),
although can be calculated by
other magnitudes, as the sound
intensity as energy flux density
or acoustic.

10. Chemical energy
This energy is another
expression of the
energy. Especially, is
one of the roots of the
interior energy of a
body and, althoug
always appears in the
matter, only shows
when its produce an
intimate alteration of
this.

11. Nuclear energy
Also called atomic, is the energy
which spontaneously released
in nuclear reactions, but can
refers to other meaning, the
use of the energy for other
functions as obtain electric,
mechanic and thermal energy.
Commonly we mean to the
nuclear energy not only as the
result of a reaction but as a
concept which includes the
knowledge and tecnics which
permit the use of this energy.

12. Thermal energy
We called this energy as
the released force as
heat. We can obtain it
of the nature or the sun
through an exothermic
reaction, for a nuclear
reaction of fission or
fusion, through the
electric energy, through
the “Joule” effect.

13. Joule effect
Is the phenomenon by which if a
conductor circulating in an
electric current part of the
kinetic energy of the electrons
its transformed in heat becuase
of the shocks suffering with the
atoms of the conductor
material by wich circulate
raising its temperature. The
name is in honor at its
discoverer, the Britanic
physical called James Prescott
Joule.

14. Energy Sources
This are natural elaboration -The solar energy: The sun produce
more or less complex in light and heat.
which the human can extract
-Eolic energy: We use this for
for realize a determinate produce electricity.
work or make some utility.
-Rivers and freshwater streams:
At the end of the 20th century Idraulic energy.
began to question the -The seas and oceans: Tidal energy.
existing emergy model for
two reasons: -The heat of the earth: Geothermic
energy.
-The global warming of the -the energy of the nucleus of
planet. radioactive atoms: Nuclear energy.
-The risks of nuclear energy -The organic matter: Biomass energy.
use that made manifest in
-The fuels: Quimic energy.
accidents as chernovyl.
About non-renewable energies (eolic,
The renewable energies these are

15. Renewable energy
The renewable
energy is the
energy that
acquires of
natural sources.
Types:
The eolic,
geothermal,
hydroelectric,
tidal,
solar,wave,

16. Wind energy
Is the energy which is achieved
by the wind, that it to say the
kinetic energy effect caused by
air currents, and transformed
into useful forms for humans.
Today, wind energy is used
especially for electrical power
through wind turbines. The
wind energy is a resource
providing abundant,
renewable, clean and reduces
emissions of greenhouse
gases.

17. Geothermal energy
Geothermal energy is energy that can
be obtained through the use of heat
inside the earth. This heat is due to
several causes, among them, must
distinguier, the geometric grandiente,
heat tadiogenérico ...
Uses:
-Electric Generation
Use direct-heat
-Heating and plumbing
-Absorption cooling

18. Hydroelectric energy
Hydraulic power is the call to that which
is achieved through the use of kinetic
energy and the corriende potneciales
water breaks or tidal waters.
This energy is a type of verbal energy
when environmental impact is
minimal and uses the hydraulic force
without stagnate, if otherwise is
considered only renewable.
The use of constructed major
hydroelectric companies. This can
hold water in dams, some of the
water is let out to move the turbines
with a generator of electricity.

19. Tidal or marine energy
Is the energy obtained by taking
advantage of the tides with
their joint to an alternator
which can be used to produce
electricity. Is a type of
renewable energy, this source
of energy hasn't got end for
their exploitation and its clean,
however the amount that can
be obtained with the cost to
obtain environmental and cost
for the devices is a remarkable
impenetracion.

20. Non-renewable energies
This are those in nature and in
a limited amount, once worn
not regenerate
There are two types:
Fossil fuels: They come from
organic matter, are coal, oil
and natural gas.
Nuclear fuel: He calls all the
material that has been
adapted for use in nuclear
power generation is nuclear
power.

21. Coal
They come from remains of
living serea is black
colored rock that has
much carbon as fossil fuel
is used.
Most of this was formed
during the Carboniferous
period (of 359 to 299
million years)
It's a nonrenewable
resource.

22. Petroleum
Homogeneous mixture of
organic compounds. It is of
fossil origin. In normal states
a liquid fat can have different
colors and viscosity. It is a
renewable resource and is
the main energy source in
developed countries, so
much so that in the United
State of America is common
to measure the oil in barrels
of 158, 987294928.

23. Natural gas
It is one of several important
non-renewable energy. It
is through mixtures of light
gases in oil deposits.
Can also be obtained by
decomposition of organic
waste.
The gas thus obtained is
called biogas.

24. Atomic energy
Atomic or nuclear energy which is
released artificially in nuclear
reactions.
Two systems discussed to try to
create massive energy through
nuclear fission this energy and
nuclear fusion.
The energy released in nuclear
processes appears as a
moving subatomic particles, we
also found nuclear plants
where nuclear energy is
obtained.

25. Hydroelectric plant
In a hydroelectric plant using water
power to generate electricity. Are the
current result of the evolution of the
old mills that took advantage of the
flow of rivers to move a wheel.
In general, these plants take advantage
of the gravitational potential energy
that the water body has a natural
channel under a gap, also known as
geodetic jump. The water in her fall
between two levels of the channel is
passed through a hydraulic turbine
which transmits power to a generator
where it is transformed into electrical
energy.

26. Nuclear plant
A power / nuclear power plant is an industrial facility
used for generating electricity from nuclear
energy. Characterized by the use of nuclear fuel
basically composed of fissile material that
provides heat by nuclear reaction which in turn is
used by a conventional thermodynamic cycle to
produce movement of alternators which transform
the mechanical work into electric energy. These
plants consist of one or more reactors.
The core of a nuclear reactor consisting of a container
or vessel inside which are housed a block of
insulating material of the radioactivity, commonly
treated graphite or concrete nuclear fuel filler
consisting of fissile material (uranium-235 or
plutonium-239 .) In the process establishing a
sustained and moderate reaction by the use of
auxiliaries to absorb excess neutrons released
keeping under control the chain reaction of the
radioactive material to these other elements are
called moderators.

27. Solar plant
A solar thermal power solar thermal power
plant is an industrial facility in which,
from a fluid heating by solar radiation
and its use in a conventional
thermodynamic cycle, it produces the
power needed to drive an alternator to
generate electricity as a thermal
clásica.Consiste the thermal use of
solar energy to transfer and store it in a
heat transfer medium, usually water.
This is an advantage of the CSP, the
thermal storage. The technology most
commonly used to store this energy are
the salts (nitrates) thermal storage. The
composition of these salts is variable,
the most used the mixture of potassium
nitrate, sodium and has recently
incorporated the Calcium Nitrate.

28. Eolic park
A wind farm is a group of wind turbines that Wind farms provide different amounts of energy
convert wind energy into electrical energy. depending on the differences on design,
location of the turbines, and the fact that older
Wind farms can be located on land or at sea turbine designs were less efficient and able to
(offshore), the former being the most common, adapt to changes in wind direction and speed.
although the offshore parks have experienced
significant growth in Europe in recent years.
The number of wind turbines that make up a park
is very variable, and depends primarily on the
available surface and wind characteristics at
the site. Before mounting a wind farm wind
studies in the chosen location for a time likely
to exceed one year. This vanes and
anemometers are installed. The data collected
will draw a compass rose indicating the
prevailing wind direction and speed.

29. Wind turbine
It have been produced by
renewable enrgies, they
have thougth put turbines in
in towns and small cities,
with dense population, to
facilitate the creation of
potable water. A turbine can
produce between 100 litres
of water per day, with the
mediambiental factors
(moisture, temperture and
wind velocity).