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Transcript of Wind Energy
How does a windmill works?
The wind rotates the propeller, which goes through a rotor, that is linked to the main shaft. This allows the generator to produce electricity. Finally, electricity is shared among the houses equally. This process is completed by a non complicated machine, therefore it is effective. Also this type of energy can power more than 9000 houses with only a few amount of windmills. To understand better, here is a diagram of a windmill turbine from the outside and inside.
What is Wind Energy ?
Wind energy is conversation of wind to energy through turbines located in the windmills. This type of energy is a very eco friendly and is very effective to use. Wind energy is rapidly developing around the world, therefore the whole world utilizes it. Wind energy is created through windmills, which are usually located on rural areas. This energy not only effects the nearby area but also far places, such as urban locations.
The propeller is what makes the turbine spin. It is one of the main parts of the windmill.It is shaped as an airplane wing, therefore it take advantage of the air more efficiently.Bernoulli principle has a huge impact on the propeller's shape. Humans also take a benefit of higher ground due to faster winds, so the windmill could spin faster and generate more electricity. However, the propeller can't spin the generator by itself, the rotor helps the propeller spins 100 times faster. That is the reason to why the propeller is linked to the rotor. (To see further more, there is a diagram on the next slide)
How the energy is provided in Canada?
Once the windmill has produced the electricity, it goes to a substation, which distributes the electricity equally and is sent to the houses. Canada is leading the utilizing and producing of renewable energy, meaning they use this type of the energy. Alberta, Ontario and Quebec are the main provinces which use this the most. However, this energy is second most used, while hydro is most effectively used. Though it is second most important in Canada, it is quickly growing. The contribution of the windmill providing electricity throughout Canada is
of the generated electricity.
Rotor shaft is a set of gears which increases the speed of rotation from 18 rotation per second (RPH) to 1800 rotation per second. This allows the generator to create more electricity. If the rotor is bigger, the more the generator produces electricity. However, there are some cons to this, the cost of a larger rotor is a lot expensive. Though it may be costly, it is the most important part of the windmill.
Windmills In Canada
How is wind energy is provided worldwide?
Wind Energy Companies worldwide
Out of all the countries in the world, United States of America is fortunate to have the strongest wind resource.They have the biggest market capacity of any country. Worldwide there is over two hundred thousand wind turbines running. More than 83 countries profit by wind turbines on trading basis. The total consumption of worldwide electricity usage is a total of 4% in June 2014 and yet the percentage is still rapidly increasing. Some countries around the world already have achieved fairly big amount of penetration.In 2010-2011 a lot of new windmills was added outside the traditional markets of North America and Europe. Global wind power for installing windmills marked up by 35,467 in 2013.
Top 10 countries where wind power is most used:
1) United States of America 7) China
2) India 8) Denmark
3) Germany 9) Italy
4) France 10) Portugal
6) United Kingdom
Renewable source of energy
Does not cause pollution
Cost of wind power has decreased by 80% since 1980's
Low working/operative costs
Can be used nearly everywhere
Noise (a problem for people who live nearby)
Terrible storms and very high winds cause damage to the wind turbines
The blades of the turbines are dangerous to birds
How wind energy is related to ecology?
How is wind energy related to space science?
You're probably wondering, how is space even related to wind energy? Well, I will explain it to you.There wouldn't be any wind turbines in the world without the sun. All wind turbines start with the sun. Wind power is a form of solar energy. It is a form of solar energy because wind is generated by heat and the heat comes from the sun. Solar radiation heats different parts of the Earth's surface. As a outcome, the atmosphere above the Earth's surface also has a high temperature and a low temperature at different rates. Warm air upraises, reducing the air pressure near the Earth's surface, which drags in cooler air to substitute's it. That movement of air is what we humans call "wind". We as humans are very fortunate to get wind energy just by the sun.
How is wind energy related to electricity?
By: Braina Gandhi
The energy causes less effects in the environment, therefore there are smaller amounts of problems unlike non renewable energy sources. Wind energy is healthy for the environment, therefore it's also safe for some animals in the wildlife. Furthermore it is very effective and does not destroy animals habitat when it is built. However, some species such as birds do get affected, about 26 birds get killed per turbine in a year. This means 23300 birds would be killed each year. Wind energy does not cause any pollution and has no greenhouse gas discharge, so that is a really strong advantage for us humans and animals.
How is wind energy related to Chemistry?
Wind turbine technology depends on chlorine chemistry for one of it's greatest demanding part such as the blades that transforms the wind into energy. The blade is made from layers of polyester (it's a product of chlorine chemistry). To retain the layers of polyester together, the blade creators generally use epichlorohydrin (EPI). This chemical is a very versatile chemical. Another name for epichlorohydrin is called "Epoxy Resins". Epoxy resin is a perfect electrical insulator. In windmills, epoxy resins is used for the switches, generator and the insulators. With the service of chlorine chemistry, wind power is helping out Europe to encounter its dedication to more sustainable future.
Most of the electricity is generated through non-renewable sources. However the wind energy makes the society eco friendly and provides us with plenty of electricity. Electricity which is generated by wind is quickly expanding around the world, meaning it is one of the quickest growing technique of electrical generation around the globe. Wind energy is a clean way for creating electricity, so this impacts humans in a positive way. The main component that generates electricity is called the turbine. A turbine is just like a fan. The wind applies force on the blades and causes the turbine to spin around, while the turbine spins it generates kinetic energy. The kinetic energy that is generated gets converted to mechanical power. Then the mechanical power is used to operate a generator that produces electricity.