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Wind energy is a kind of renewable energy. Wind is the most common natural phenomenon and it is made by thermal radiation, it is also a kind of air flow. There is approximately 20% solar energy become wind energy when it arrives earth. Wind energy has sustainable using, easy to get and so many benefits. Moreover, using wind energy only produces a little bit pollution to the earth. In addition, there are some of the limitations and drawbacks in using wind power, too. Firstly, wind speed is not constant, therefore it will affect in the energy. Secondly, efficiency of wind energy transformation is low.
The most common thing to transform the wind energy to electricity is windmill.
As what we learned from class, our group decided to create a small windmill which is not the same as normal one. We try to make a windmill that can give out light to a series of small bulbs that can shine through the wind power.
We found that wind can generate electricity and as time went by wind power generation seems to widely use in our daily lives. One of its advantages is that if people use wind power generation, it will reduce carbon dioxide emissions. Nowadays, Horizontal-axis three bladed turbines are most common types in wind power plant. Also, this type of products can turn 40% wind power into electricity. Therefore, coals are not the only way that can generate electricity. Using wind power generate has many advantages, too. First, it is good for environment because it won’t produce any harmful gases into the atmosphere. Second, it won’t use oil or other non- renewable energy resource so that people can use these resources for longer time. Third, there are some positive impacts on industry because industry doesn’t need to produce much exhaust gas as much as before.
Nowadays, the shortage of energy becomes issue in the world thus renewable energy plays an important role in our daily lives. Therefore, the ancient invention—windmill can be used again. And turn attention to the principle of wind power generation. The windmills are very popular around the world, which don’t exit any air-pollution and the problem of radiation. They have been greatly promoted around some European countries, especially in Finland and Denmark, while the windmills are widely used in the western area in China.
Reference to the principle of wind principle of wind power generation, which exploits the wind power to rotate the windmill blades and the rotating speed will be increased rapidly, so that it will be convert to electricity for distribution. There are more than 10 components. The turbines can be divided into three parts: the rotor component, the generator component and the structural component.
The rotor component is to make use of the blades to covert wind energy to low speed rotational energy. The generator in order to transform the low speed to high speed rotation; finally, it can generate the electricity. The structural support component has the tower, rotor yaw mechanism and so on.
https://en.wikipedia.org/wiki/Windturbine#Design andhttps://en.wikipedia.org/wiki/Windturbine#Design and
Group: Bonnie Li Healer Lucia