Do we know what wind energy is? Here we explain it to you.
Today in this post I come to talk about a topic that is very important, and is about wind energy. It is a subject that should be covered immediately since it is a clean energy and does not produce any damage. Many people do not have the slightest idea of how interesting this change could be, both for us and for the planet. Without anything else to say let's start with the basics.
What is eolic energy?
Wind energy is a source of renewable energy that uses the force of the wind to generate electricity. The main means to obtain it are wind turbines, "windmills" of variable size that transform with their blades the kinetic energy of wind into mechanical energy. Wind energy can be obtained by installing wind turbines on both the ground and the sea floor.
Wind energy is mainly used to produce electricity through wind turbines connected to large electricity distribution networks. Wind farms built on land are an increasingly cheaper and more competitive source of energy, and even cheaper in many regions than other conventional energy sources.
Wind energy is an abundant, renewable and clean resource that helps reduce greenhouse gas emissions by replacing fossil fuel-based energy sources. The environmental impact of this type of energy is also, generally, less problematic than that of other energy sources.
How do you get this energy?
Wind energy is related to the movement of air masses that move from areas of high atmospheric pressure to adjacent areas of lower pressure, with velocities proportional to the pressure gradient..
The winds are generated due to the non-uniform heating of the earth's surface due to solar radiation; between 1 and 2% of the energy coming from the Sun becomes wind. During the day, the continents transfer more of the solar energy to the air than the water masses, causing it to heat up and expand, so that it becomes less dense and rises. The coldest and heaviest air that comes from the seas, oceans and large lakes is set in motion to occupy the place left by the hot air..
In order to take advantage of wind energy it is important to know the diurnal, nocturnal and seasonal variations of the winds, the variation of the wind speed with the height above ground, the entity of the bursts in short periods of time, and the maximum values that have occurred. in historical data series with a minimum duration of 20 years. To be able to use the wind energy, it is necessary that it reaches a minimum speed that depends on the wind turbine that is going to be used but that usually starts between 3 m / s (10 km / h) and 4 m / s (14, 4 km / h), speed called "cut-in speed", and not exceeding 25 m / s (90 km / h), speed called "cut-out speed"..
It is a very complicated issue, but it is also very necessary, since we will only use air as a main resource, as it has been explained, it is a clean energy that can be used to the maximum. Unfortunately, very few countries have adapted to these measures and those that really interest them are the "developed" first world countries.
Countries that produce wind energy
At the end of June 2015, the country with the highest installed wind capacity is China in first place, followed by the United States in the second and Germany in the third.
China has 124 gW this year and has grown by 10 gW since 2014 and by 44 gW since 2013. A continuous growth that is helping, in part, to alleviate its pollution problems, although it will need to invest more money in this type of source to be able to actually reduce them.
The next is the United States with 67 gW installed and its growth since 2013, in only two years, its capacity has increased by 8 gW with a real stagnation, something that can also be seen in Germany, India and Spain, of course, if compared to the huge growth of China..
Apart from the main powers in the wind, it is necessary to mention Brazil, which showed the highest growth rate of all the markets with a 14% growth in this year 2015..
Wind energy uses the force of the wind to produce electricity. It does not pollute, it is inexhaustible and it reduces the use of fossil fuels, contributing to create wealth and generate employment locally. Very respectful with the environment, it has positioned itself as one of the most widespread and productive methods for obtaining electricity worldwide.
Advantages that the wind energy
- It is a type of renewable energy since it has its origin in atmospheric processes due to the energy that reaches Earth from the Sun.
- It is a clean energy because it does not require combustion, so it does not produce atmospheric emissions or polluting waste, thus avoiding an increase in the greenhouse effect and climate change.
- It can be installed in spaces not suitable for other purposes, for example in desert areas, close to the coast, on arid slopes or very steep to be arable.
- It can coexist with other land uses, for example meadows for livestock use or low crops such as wheat, corn, potatoes, beet, etc.
- Creates a high number of jobs in assembly plants and installation areas.
- Its installation is fast, between 4 and 9 months.
And since everything in this life can not be so good or so bad, I also have to specify the disadvantages of this system.
Disadvantages of wind energy
- Generally, although not always, it is combined with thermal power plants, which leads some people to believe that they do not really save too many carbon dioxide emissions. However, it must be borne in mind that no type of renewable energy allows, at least on its own, to cover all the demand and production of electricity, but nevertheless its contribution to the electricity network is clearly positive from the point of view of saving of emissions.
- At the beginning of their installation, the places selected for this coincided with the routes of the migratory birds or with the areas where the birds take advantage of slope winds, which makes the wind turbines come into conflict with birds and bats. Fortunately the levels of mortality are very low compared to other causes such as the abuses, although this statement is questioned by independent experts. Currently the environmental impact studies necessary for the recognition of the wind farm plan take into consideration the ornithological situation of the area. In addition, given that current wind turbines are of low rotation speed, the problem of collision with birds is significantly reduced.
- The opening of wind farms and the presence of workers in them makes the human presence constant in places hitherto little traveled, which also affects the fauna.
As we can see it has several disadvantages, they are very few, but that does not mean that they lose importance. It affects fauna and ecology as such, but at very low levels. It will be necessary to make a first control of the places in which they want to build the wind farms.
Attached I leave you a video which details with more precision, how the energy process is developed. Without anything else to say, I hope you have enjoyed this work on wind energy
- https://es.wikipedia.org/wiki/Energ%C3%ADa_e%C3%B3lica#Ventajas_de_la_energ%C3%ADa_e%C3%B3lica
- https://twenergy.com/energia/energia-eolica
- https://www.renovablesverdes.com/los-paises-que-mas-energia-eolica-producen-en-la-actualidad/
nice description Sir
Thank you men for your time in reading
Congratulations! This post has been randomly Resteemed! To join the ResteemSupport network and be entered into the lottery please upvote this post and see the following rules.
nice post, brother.
Upvote for upvote,
Follow for follow.
@originalworks
The @OriginalWorks bot has determined this post by @juanjdiaz89 to be original material and upvoted(1.5%) it!
To call @OriginalWorks, simply reply to any post with @originalworks or !originalworks in your message!