Wind turbines Essay Example | Topics and Well Written Essays - 2000 words

enfold turbines - Essay ExampleAccording to studies, jazz contributes only less than 1% of the worlds energy needs (Grose 1). horizontal if the percentage of contribution is very low, the use of wind turbines as means to fork up electricity germinate endlessly. This is because people nowadays discover the good benefits of using wind turbines in terms of environmental factors.However, slightly disadvantages still prevent other people from using wind turbines and few of these reasons are related to extravagantly cost of manufacture and noise created by these machines (Mahoney 2). Ongoing improvements on the blades design and material are continuously done to further develop the machine in terms of its aerodynamic properties and performance.A wind turbine is a machine that can generate electricity through the use of wind power. A wind turbine has extended rotating blades that are capable of capturing wind and creating kinetic energy. This energy is converted to mechanical ener gy which is used to generate electricity for various purposes (Mahoney 1). Shown below are the parts of a typical wind turbineThe horizontal axis wind turbine (HAWT) is likewise known as the classical or most commonly used wind turbine in the world. The axis of rotation of these turbines is horizontal to the primer and parallel to the wind stream (Mathew 16). Shown is a plot screening a sample of a horizontal axis wind turbine.... Shown is a diagram showing a sample of a horizontal axis wind turbine.The advantages of using HAWT are its structural stability and changeable blade pitch that allows greater control of the turbine and aids the blades in catching the maximum gist of wind. Versatility is also seen as one of its advantage in terms of its ability to be feathered in case of storms (Mahoney 1). 2.2.2. Vertical Axis Wind TurbineVertical axis wind turbine (VAWT) is different from HAWT because it is upended to the ground and almost perpendicular to the wind direction. The V AWT can receive wind from any direction and so, complicated devices are avoided. The advantage of using VAWT is that they are not needed to be built very amply. Maintenance is also easier since the VAWT is located nearer to the ground. The design is also not complicated and blades can easily be seen by birds (Mathew 19).On the other hand, VAWTs are less efficient than HAWTs since they can only produce energy that is 50% of what HAWTs can produce. Another downfall of VAWTs is that it can only rotate faster in higher elevations and with high wind velocity. Lastly, the turbine must be dismantled first in order to change or secureness some parts when necessary (Mathew 19). Shown in diagram 2 is a sample of a vertical axis wind turbine. 2.3. Types of Horizontal Axis Wind Turbine BladesWind turbine can be classified as single bladed, double bladed, and three bladed. The cheapest among the four classifications is the single bladed wind turbine since it only consumes small occur of mater ial and labor. On the other hand this design is not ideal since balance is also an strategic factor in wind turbine construction and single bladed wind