Archive for the ‘Electricity’ Category
A windmill is a machine which exploits the energy from the wind to produce other forms of useful energy such as electricity. They are also popularly referred to as wind turbines specifically when referring to the types that are used to produce electricity. When it comes to creating power, windmills are considered as highly dependable and effective. A windmill is comprised of a set of blades that are attached to a central axis that is designed to spin when it comes in contact with wind.
Windmills transpired from the demand for creative and environmentally friendly method of exploiting energy. They have been in existence since around the fifth century AD where they were being developed in Persia. The first forms were used as grinding mills but they have progressed enormously over the years. The uses of windmills and the variety of styles continue to transform along with time and technology. This is obvious when you look at how they were operated compared to how they are controlled now. They once needed the attention of someone continuously in order for them to operate effectively. Nowadays, windmills are maneuvered by computers.
The use of windmills has extended to different countries as it is inexpensive and it creates energy without releasing green house gases. Windmills use free energy to create another form of energy and that has resulted in the use of windmills to become accepted and widespread. They are also quite eye-catching and in some countries they are seen as an attraction. In Holland and Spain for instance, windmills make up a part of their attraction. They have a wide variety of uses, some of which are:
How Do Windmills Work
The amount of power that is produced by a windmill is dependent on certain aspects. First of all, its size is a major aspect. The bigger the blades are and the more blades included on the axis causes the creation of more energy. Secondly, its position or location. Windmills work properly in flat areas and they have to be used where there is wind to drive the sails. Lastly, the number of windmills that are used to generate power is important. The more windmills used, the more power will be produced. Alternatively, one windmill can produce a substantial amount of energy.
A wind mill is comprised of various components so as to efficiently generate energy. There are blades which are responsible for the majority of the work. These blades are connected to a body consisting of a very long tower. The height of the pole is essential to the overall operation of the as it raises the sails at higher elevation for improved access to wind. It is very important that a windmill is launched on a very strong and sturdy pole or tower as the stronger and taller they are, the better they operate. Windmills are classified depending on the kind of axis that they have. The most common kind is the horizontal axis which has three blades. The next type is those that have a vertical axis resembling an egg beater. This model has a benefit of functioning effectively even when it is not facing the wind.
How a windmill operates is simple. The blades are very essential in the production of energy as they do most of the work. The blades instinctively rotate when they come into contact with wind. This action that is created in sequence produces energy which is then passed from the blades through the shaft and then to the generator. When it reaches the generator, it changes the energy into electricity which has a benefit over other means of electricity generation since it is pollution free.