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Essay positives of wind energy
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Wind power and future of renewable energy
Abstract:
Due to the development of technology around the world, the need of energy is increasing every year. But, what would be the best way to produce energy without polluting the air, or depleting fossil fuels? Renewable energy would also be the best solution for this problem. Of the available sources of renewable energy, wind power shows much promise. Wind turbines have been used through many generations, and the technology continues to develop. Wind Energy provides a feasible energy alternative to traditional fossil fuels.
Introduction:
The need for alternative energy is a pressing issue for countries all over the world. One of the solutions this for problem is wind power, which has been in use for many thousands years. “About 5000 years ago, the ancient Egyptians used wind to sail ships on the Nile River. Later, people built windmill to grind wheat and other grains. American colonists used windmill to pump water, and cut wood at sawmill. In 1920s, they started to use it to generate electricity.” (Renewable energy trends, 2005).
Besides the long known history, the ways electricity is generated through wind turbines are truly simple, too. “Turbines catch the wind's energy using blades which are mounted on a shaft. The shaft is connected, normally via a gearbox, to a generator which produces electricity. The blades and shaft are connected to the
Wind power 3
nacelle, which contains the gearbox and other power mechanical components.” (Scottish executive, 2007). Wind turbines can be determined in two styles that based on the direction of the rotating shaft (axis). One is horizontal axis, and the other is vertical axis. (Figure 1).
Figure 1: Wind Turbines: Horizontal & Vertical A...
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Wind energy
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Wind Turbine
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These include the history of windmills and their role concerning the survival in the immense plains that range from east of the Rocky Mountains to the Mississippi River. The rise of the economic condition of those living around the wind farms along with the surge of investments from energy companies. Finally, the promising data relating to the amount of energy produced, and the consequences they will have on the environment. In the later and longer part of the article, the possible negative results or wind farms are brought up. Primarily, the points against wind farms have to do with the conservation of wildlife. This is separated into two sections, the first addresses the dangers wind turbines present to birds, the other on the dangers presented to bats.
The energy produced and created by using the kinetic energy which comes from the wind naturally is known as the wind power. Wind power is the technology to catch the energy gained with movement, kinetic energy, and change this energy into electrical power which is useful in many places, such as households throughout the nation. Wind power can be produced by using a device called wind electric turbine. Several huge blades, about 30 feet long, are placed on each wind turbine. While wind passes through the blades, the wind with kinetic energy makes the blades to turn. The movement of blades makes a shaft inside the turbine to be in motion as well with the same velocity of the blades. This work turns the kinetic energy into rotational energy which will be stored into a generator located at the bottom of the turbine. After the rotational energy is kept in the generator, this energy is changed into electrical energy. Finally, the electrical energy is removed into the electrical plant for storage by the power lines until the communities are in need of energy.
Wind turbines, by nature, must be sited in highly visible areas to give them enough space to produce the amount of energy desired. However, many of the sites for wind turbine farms are now located in areas that are ...
“A wind turbine is a machine for converting the kinetic energy in wind into mechanical energy”. (1) The inventor of the first electric wind turbine was Clevelander Charles Brush, who ran his entire Euclid Avenue mansion off of one for 20 years, which later made the cover of Scientific American in 1888. (2) Although the use of alternate energy didn't rise a great deal afterward, this event did open the eyes for many environmentalists. Wind power is only one of our several “energy source[s] whose ‘fuel’ is free and will never be exhausted” (3) with the pros and cons not completely weighed out as to whether it will be truly beneficial or not. The two main issues regarding wind turbines are the environmental effects that they have and the cost effectiveness of building them.
Wind energy has been utilized for hundreds of years. Such a simple technology and source of energy has always been around, and has been used slightly, but never to its full potential. Only recently have people been discovering and engineering ways to utilize the great, natural, free source of energy that the universe gives us. Renewable, safer, more efficient, and environmentally friendly sources of energy are becoming more and more important in such an, already, physically damaged world that we live in. It is becoming a household debate, and a debate in which many world leaders are taking notice and action towards.
Ever since recorded history, people had the ability to use wind as a source of energy. Wind power was been used to propel boats along rivers as early as 5000 B.C. At 200 B.C., China used windmills to pump water, while in Persia and the Middle East used vertical-axis windmills with woven reed sails were grinding grain. (history-wind-energy, energy.gov) Eventually, discoveries for wind energy became vast. Plethora of ideas developed. During the 11th century, the Middle Easterners used the windmills for food production. Which then allowed nomads, merchants, and crusaders to further bring back the idea back to Europe. The Dutch further improved the windmill by making it for draining lakes and marshes in rivers. Settlers took this advanced technology to the New World, and began using the windmills to pump water for farms and ranches and much more. Then eventually, to generate electricity, for homes and industries and soon to become, wind turbines.
Early sailors were the first ones conceptualize the windmill. They were able to imagine what wind power could do, but did not have the knowledge of resources to explain the logic or physics behind the windmill, they just had the concept. But nonetheless with time, the idea of wind power then evolved to form the windmill. “It is uncertain who came up with the idea, but its purpose is to function in everyday life. Remains of windmills have been found in Ancient Mesopotamia and Persia (Higgins, p.12).” Windmills have been used by the earliest of people. They used it to grind grain which in turn helped mass production of food to help the population growth. Before the invention of the windmill this job was done by hand, which consumed much a lot of time. Nowadays wind turbines are used to generate electricity.
Now-a-days the handling of “Electricity” has been increased rapidly. Due to this the “Fossil Fuels” are getting extinguished day-to-day. So we need to choose for an alternate source of energy that is Renewable Source. Among the Renewable Sources “Wind Energy” is one of them.
Energy is used everyday, in different ways. As time passes by, non-renewable energy sources are running out slowly. They are becoming harder to find, so these non-renewable resources are becoming more expensive. What will happen if these resources ran out? Since these resources are running out, such as oil or fossil fuels, people are finding ways to make renewable energy resources. Wind power is great to be used instead of fossil fuels. A suggestion would be wind power. It should be used more, since it is cleaner, cheaper, plentiful, free, produces no waste, and requires little land.
Prior to the Industrial Revolution, wind power was used by the Europeans as a significant source of energy for. As time passed, use of wind as energy lost favor because it was not always available when it was needed, and it was difficult to distribute. “The first wind turbines for electricity generation appeared in the late nineteenth century in the United States.” “Modern wind turbines are several hundred feet tall.” For example, “a wind turbine that generates 1.6 mega-walls of electrical power is approximately 113 meters tall from its base to the tip of the rotor blade.”
Global warming is a big factor in today’s society. It is an impressive example of energy innovation, and yet one of these mammoth wind towers provides clean, renewable energy by a simple mechanical feat -- the spinning turbines turn a generator that provides power for hundreds of homes. (Michael Kenny, 2009)
Wind is a clean and renewable source of energy. Because of this modern wind turbines are being installed all over the globe in hopes of lessening the need of non-renewable energy such as the burning of fossil fuels.
The first widely used renewable source of energy is wind power. This energy source is created by wind turbines that convert the speed of the wind into electricity and mechanical energy. The speed of the turbine affects the amount of energy that is produced. As the turbine moves faster, more energy is produced. About 1.5% of the world’s energy is derived from wind power, but that number is expected to increase in the future (Frater, “Top 10 Renewable Energy Sources”). Wind power turbines that are placed in large open areas have the least environmental impact. An example of a wind power farm would be the San Gorgonio Pass Wind Farm in Riverside County, California.
Deal, W. (n.d.). Wind power: An emerging energy resource.Technology & Engineering Teacher, 70(1), 9-15. Retrieved from http://web.b.ebscohost.com/ehost/detail?sid=a747d6c4-9f9f-4066-be3e-d7d26a427ef2@sessionmgr115&vid=1&hid=114&bdata=JkF1dGhUeXBlPWNvb2tpZSxpcCxjcGlkJmN1c3RpZD1zc2Mmc2l0ZT1laG9zdC1saXZlJnNjb3BlPXNpdGU=