1. Ministerio de Educación
Instituto América
Topic
Alternative energy sources
“Hidráulica power’’
Group:
Changing earth 11°H -5
Subject:
English
Name:
Kathya Rodríguez
Teacher:
Marta Rebolledo
Grade:
11°H

2. Introduction
The hydraulic power is that one who
takes advantage of two qualities of
the water currents: the speed and
the position (kinetic and potential
energy). The idea is very simple and
though it does not seem it removes
using for hundreds of years: we all
have seen mills that take advantage
of the flow of a river to move a series
of mechanisms that realize a work.

3. Hydraulic power:
Definition:
we must begin for defining hydroelectricity the same one it is a natural available resource in the
zones that present sufficient quantity of water.
• Also we can define it that one that is obtained of the utilization of the energies kinetic and
potentially of the current of the water, jumps of water or tides.

4. Since it is the hydraulic power
and since it is effected:
Is a type of green energy when his environmental impact is
minimal and uses the water force without repressing her, in
opposite case it is considered to be only a form of renewable
energy

5. Some advantages and disadvantages of the hydraulic power:
advantages
Disadvantages
1. is inexhaustible whereas it does not change the
hydrological cycle. 1 High cost in the initial installation.
2 It has a low cost of maintenance. 2 Great environmental impacts in case of
hydroelectric power stations
3 It has a low impact in the environment.
4 It has long life.
5 It is possible to use both for small
consumptions and for industrial level.

6. Benefits:
• The hydraulic power is a generating source of so many resources since across the same one we
obtain of the water (this one is a renewable resource) this water it is possible to collect and retain
by means of dams. Part of the stored water is left to go out in order that one moves the blades of a
turbine geared into a generator of electric power

7. The hydraulic machines can qualify attending to different criteria
• According to the type of exchange
1. According to the variation of energy
In the hydraulic engines, the energy of the fluid Bearing in mind the way in which the energy
that crosses the machine diminishes, mechanical
exchanges inside the machine his classification it can be
energy being obtained, whereas in case of
hydraulic generators, the process is the inverse like that:
one, so that the fluid increases his energy on
having crossed the machine. • Machines of positive or volumetric displacement. It
is a question of one of the most ancient types of
• Attending to the fluid type of energy dynamics that hydraulic machines and they are based on the
is exchanged across the machine we have: displacement of a volume of fluid compressing it.
The clearest example of this type of machines is the
• Machines in which there takes place a pump for bicycles. They supply a flow that is not
variation of the potential energy, as for example constant; to avoid it in occasions several join to
Arquimedes's screw. achieve a major uniformity. These machines are
adapted for supplies of high pressure and low
• · Machines in which there takes place a
caudal
variation of the kinetic energy, as for example wind
generators, propellers or turbine pelton. These are
named machines of action and do not have
framework.
• · Machines in which there takes place a
variation of the entalpía (pressure), as for example
the centrifugal bombs. These machines are named
machines of reaction.

8. The hydraulic machines can qualify attending to different criteria
• According to the encirclement • According to the movement
• Other criteria exist, as the division in rotary
According to the encirclement
and alternative, depending on if the organ
interchanger of energy has a rotary or
Attending to the presence or not of framework:
alternative movement, this classification is
Machines since they can be the machines of very intuitive but he does not attend initially
action. basic of functioning of these machines.

9. conclusion
•
Hydropower has the quality to be renewable, it does not exhaust the primary source to exploit it,
and it is clean, because its operation produces no pollutants of any kind. However, the
environmental impact of large dams, for the severe alteration of the landscape and even the
induction of a distinct microclimate at your site, have undeserved kindness ecological concept in
recent years.
At the same time, the maturity of the operation means that in developed countries are not only
attractive locations for developing new hydroelectric plants.