Renewable Energy - Research Paper Example

This has led to establishment of measures to switch to renewable energy sources like wind and photovoltaic electricity. These renewable sources are clean and also maintainable considering that they do not emit gases or toxic that can pollute the environment. Some sources like wind are plentiful, easily affordable, require less maintenance and cannot get exhausted. These renewable sources can be established in rural areas and therefore this encourages establishment of industries in those areas.

Wind energy convertors have a strong inbuilt framework that enable them to convert the free moving air which has kinetic energy to rotational movement whereby then it can make the generator to start working-mechanical energy (David, 2009). This is through the friction of the rotating wind and the wind turbine blades. However, before any electricity is generated there are stages that are involved. The first stage is the stage of revolution. In this stage, the blades are made with certain dimensions to help harness as much free moving air as possible.

They should be able to rotate easily and should have a considerable length of about forty meters. They should also be placed in certain degrees depending on the direction of the wind. The blades are able to rotate because of the two main forces that are involved. The first one is the drag force which is horizontal to the wind direction and the lift force which is vertical to the direction of wind (David, 2009). These forces depend on the shape of the rotating blades and the angle in which the wind meets the blade.

Either of these blades can be used to propel the blade. It is important to note most of the Wind Energy Converts depend mainly on the lift force. All this is illustrated in the diagrams below. The blades rotate on a rotor which is connected to the shaft. The rotor then makes the generator to convert the waves to electricity. This stage is referred to as the mechanical stage. The wind turbine should be