The electricity has a high incidence in the daily activities of human beings due to some
advantages such as:
Ease of use.
The reduced emissions produced consumption.
The ease of transport over long distances.
It can be obtained from various
Classification Of Mini Central Por La Presa.
There are two basic types of mini hydro:
1.8.1 Stations of flowing water.
In these plants, the water is captured turbinar riverbed through an intake, and once turbinada, it
is returned to the river in a differe
In this method the atmospheric pressure varies inversely proportional to the height above sea
level and depending on the pressure at a given location can determine its height; therefore, if
the pressure difference between two points is k
Closed headphones allow more or less complete auditory isolation of the subject who listens
and also prevent the reproduced sound go outside, so their applications tend to be more
dedicated to the professional field as studio monitoring
Practical expressions for calculation
Whereas filled ducts where:
Equation Ecuacin2.9 Bazin
Bazin formula becomes:
The values are:
0.16 seamless steel tubes
Cement pipe 0.20
0.23 for cast iron pipes
2.5.4 Load losses localized
Localized losses are part of
Power Of Interconnection Line.
Figure 1.13 Mains
Is called the set of grid means comprises electrical generators, transformers, transmission lines
and distribution lines used to carry power to the power load elements. For this purpose diff
Utilization factor and demand.
The utilization factor (m) is the factor that relates the time in which the energy delivered by the
central mini used, demand factor associated with the power demand placed centrally mini, to
obtain acceptable values have to
2.2.1 Concept and Use.
The printers turn out to be another Output Devices for obtaining the results of a process printed
visually; but the print quality is determined by the type of printer used from existing types.
2.2.2 Their types and their e
Problems With Turbines.
The main disadvantages are the turbines are cavitation and runaway.
Cavitacin.- when a liquid is subjected to a pressure greater than the pressure of the
evaporation, the liquid evaporates forming small vapor bubbles to burst cause
For the primary energy used.
There are several ways to get electricity from energy sources that exists in the environment then
briefly describe the most important:
Central termoelctricas.-Son plants using thermal energy from the combustion of hydrocarbons