For people who are not privy with how electricity is
generated, this article is for you. There are many forms of electricity just
like there are many sources of it. One source of electricity is the wind that
we are breathing right now. Wind is capable of producing mechanical power which
is important for electricity generation.
So how can we get the wind to work for us? Well let us think of it this way. Wind
turbine functions in exactly the opposite way a fan does. While a fan uses
electricity to generate wind, a wind turbine uses wind to make electricity. A
typical wind turbine consists of a blade, shaft, and the generator. This is
strategically placed to catch the wind which will then turn the blade. The
shaft is then triggered by this simple movement. Once a continuous action is
derived from the blade and the shaft, a generator connected to the shaft will
now give out the necessary electricity. The electricity generated from wind
turbines scan give out the same quality of electric power as those found from
other energy sources.
A. According to
Design
There are two kinds of <a href ="http://www.techstore.ie/Renewable-Energy/Wind-Energy/Wind-Turbines.html">wind turbines</a>, the vertical axis
design and the horizontal axis design. The vertical axis type is designed like
an egg-beater. Darrieus, a French man, invented it. The horizontal wind turbine,
on the other hand, has two to three blades. This type functions best when it is
directly facing the wind. Farmers with great land area found out another source
of income. When wind turbines became the newest source of electricity, these
farmers leased their lands to power developers. Wind farms mushroomed all
throughout the Midwest.
B. According to Size
Wind turbines vary not only with their designs but also with their sizes.
Smaller turbines are usually lower than 100 kilowatts and they are most often
found in homes. They are associated with simple diesel generators and water
pumping needs. There are also the utility-scale wind turbines. They start at
100 kilowatts and reach up to even a few megawatts. There are also the really
large turbines seen in wind farms. These turbines serve as the primary source
of electricity in the electrical grid.
Familiarize
yourself with the different parts of a <a href
="http://www.techstore.ie/Renewable-Energy/Wind-Energy/Wind-Turbines.html">wind turbines</a>
For those of you who are interested to know more about wind turbines, below are
their basic parts and functions:
Anemometer – is a tool that measures wind speed.
Blades –
are the main electricity-generating parts of the turbine. Once wind passes
through it, they will rotate thereby causing a series of reaction which will
eventually lead to electricity production.
Brake – as with any other break, this is used to stop the turbines in emergency
cases. This could be a mechanical, electrical, or hydraulic break.
Controller
– this dictates the wind speed at which turbines start and stop. It usually
starts the machine when the wind hits 8 mph and stops it upon reaching 55 mph.
It is an important part of the machine since it automatically stops any machine
activity when wind speed is more than 55 mph because blades may easily be
damaged.
Generator
– produces electricity usually at 60 cycles.
Shaft –
signals the generator to conduct electricity.
Tower – is a place where turbines may be placed
to get more wind.