Wind Electric Generator

Introduction to wind electric generator:

Electricity is an essential part of our life.We can not even think of world without electricity in future.Electricity is required in each and every aspect of life .A country can not progress even a bit without power.To fulfill the meed of power so many power plants are made which generates good amount of electric power.There are many ways through which electricity is generated.Please express your views of this topic Energy Types by commenting on blog.

Thermal power plants

Hydro Power plants

Nuclear power plants

Geothermal power plants

These are the few methods by which power is generated.In thermal power plants some fuels like coal etc are needed which is used to heat water and thus steam generated is used ti rotate the turbine.and then the power is generated.similarly in hydro power plants water is used to rotate the turbine.In the nuclear power plant fission of radioactive element liberates large amount of energy which is used to produce the steam by heating of water and this is used to rotate the turbine and then power is generated.

Apart from these scientists have evolved a new method to generate power from the wind.A fast moving air is known as wind .so in this method wind is used ti rotate the turbine and hence it helps in the production of electric power.Wind turbine takes the energy from the wind and then it converts the mechanical energy into electrical energy.


Different parts of wind Mill


The turbine used in the wind mill mainly contains three blades.These are fast rotating blades whi8ch can rotate up to more than 300km per hour.The blades are of the length about 30 to 40 meters.And the pole is of the height 60 yo 90 meters.A gear box is also used which helps to step up  the generator.Some times the same speed generator is used but more power can be generated by the variable speed generator.The blades are made in such a way that it is not affected by the climate change.

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Advantages and Disadvantages of wind electric generator


Advantages:

It does not cause any pollution

Height of pole helps the to get high wind most of the time.

movement of Blade is always perpendicular to the wind  so it helps to attain maximum efficiency.

Wind is a natural resource so it can be used for ever unlike coal and radioactive elements which will last for ever.

Disadvantages:

The height of towers are so long therefore there is always a problem for transportation.

Installation is not easy.

Flow of wind is not consistent in some areas.So when there is no wind efficiency can decline.

Complete dependency on the flow of wind for the power generation