Structure
“The wind turbine captures the wind’s kinetic energy in a rotor consisting of two or more blades mechanically coupled to an electrical generator” (Patel, M. R., 2006). According to wind turbines rotor layout they can be categorized into two main types Horizontal Axis Wind Turbine and Vertical Axis Turbine (Shuqin, L, 2014).
The airborne turbine is another of turbine type considered in this report, as Sandikhola village is located in higher altitudes.
Horizontal Axis Wind Turbine (HAWT)
Horizontal Axis Wind Turbine (HAWT) are most common type of turbines used around the world (see figure a). Kinetic energy in the wind is converted into rotation motion by the turbine blades. This slow rotation speed is transformed into the gear box by the main shaft in front of the gear box (seen figure b). The gear box increases rotation speed to an appropriate rotation speed required for the generator. This increased rotation speed is transmitted to the generator by a fast rotating shaft. The electric energy generated from this rotation motion is transmitted to the grid by the cables.
Generating electricity with wind turbine is relatively simple. However things are not so simple, when the wind is not blowing at same speed or the same direction all the time. This creates additional problems to be handled by the turbine which requires additional components to overcome these problems. Change in wind speed and direction is measured by an anemometer at the top of the wind turbine; which sends data to a controlled computer in the nacelle. The computer than sends all signals to the control system, which changes the angle of the tack of the turbine blades. This causes the turbine blades to rotate in their axis; this action is known as pit...
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...(2014). Chapter 10. Magnetic Suspension and Self-pitch for Vertical-axis Wind Turbines. Retrieved May 22, 2014, from http://www.intechopen.com/books/fundamental-and-advanced-topics-in-wind-power/magnetic-suspension-and-self-pitch-for-vertical-axis-wind-turbines
Meyers, C. B. (2014). Centurion Energy. Types of Wind Turbines. Retrieved May 22, 2014, from http://centurionenergy.net/types-of-wind-turbines
Thehimalayantimes,. (2014). The Himalayan Times : Exploring wind power in Nepal - Detail News : Nepal News Portal. Retrieved 22 May 2014, from http://thehimalayantimes.com/fullNews.php?NewsID=397063&headline=Exploring+wind+power+in+Nepal
Dave, E. (2014). environmentalresearchweb blog - environmentalresearchweb. Blog.environmentalresearchweb.org. Retrieved 22 May 2014, from http://blog.environmentalresearchweb.org/2014/04/12/flights-of-fancy-airborne-wind-turbines/
You’ll almost always find these wind turbines in open fields and they are usually called wind farms. Because these wind turbines create so much turbulence they have to be so far apart from each other and they can’t be right behind each other (Gipe). These wind turbines have to be 200-300 feet in the air because the blades on these wind turbines are 65-130 feet long (Gipe). Also these wind turbines have to have a 17 miles per hour wind to start spinning, because a wind smaller than that won’t create enough energy
"Two windmills", a simple poem by Geoffrey Dutton, which records the poet's memory, of living on a sheep ranch is his childhood. In depth he paints a vivid picture in the reader’s mind of the conditions in the Australian outback. This is portrayed through the use of visual and aural imagery.
Some are more efficient than others, and some have more pros to them than cons. Wind power for example, generates electricity through huge spinning turbines. These huge turbines have blades that fit on the back of semis. Most wind turbines have three blades and sit atop a steel tubular tower. Their size ranges from about 80-foot-tall turbines that can power a single home, to utility-scale turbines that power hundreds of homes. Today’s wind turbines are like highly developed windmills.
"solarpowerpanels.ws - Solar panels Resources and Information. This website is for sale!." solarpowerpanels.ws - Solar panels Resources and Information. This website is for sale!. N.p., n.d. Web. 23 Feb. 2014. .
Nijhuis presents a series of detailed explanations that argue in favor of and against the development of wind farms. In the first portion of “Selling the Wind”, the
Ten more wind turbines were commissioned in 2009 at the Sillahertane section of the site. This section of the wind farm is also known as Coomagearlaghy II. The turbines in this area are Vestas V52, each with power output of 0.85MW. The total power output of the site is 8.5MW. The site is estimated to have an annual production of 21GW.h. This part of the site is operated by Bord Gais Energy.
In everyday life, there are things that one needs to survive. And sustainability problems arise every day. One such problem is energy loss. The world is using up a lot of energy and new ideas need to be formed to help the rest of the world and the future of the generations that are to follow, to survive. With that the problem is that people use up energy and they do not use it efficiently. Therefore scientists are needed to find ways to deal with the sustainability problem that is arising. That is where wind turbines are used to generate this energy but the actual wind-turbines are very large, loud and they kill birds, thus new designs need to be found in order to help energy usage and to bring the size and structure of the wind turbines to a smaller scale to prevent injuries to nature and the species around it.
Wind turbines can be very useful in bringing energy into your home. They are especially useful when solar panels aren't working. They take the wind speed from oceans, lakes, dugouts, or rivers and turn it into energy. To use the wind turbines most efficiently you should set up a wind power system.
Wedged between the high wall of the Himalaya and the steamy jungles of the Indian plains, a small land-locked country Nepal is a land of snow peaks and Sherpas, yaks and yetis, monasteries and mantras, situated between India and China. Eight of the world’s ten highest mountain peaks are in Nepal, including Mount Everest. Nepal is the birthplace of Lord Buddha. And, most importantly, Nepal was never ruled by any country, never ever.
Wind turbines are a great source of energy around the world. Wind turbines produce wind energy that can be used to power our homes. Wind turbines convert kinetic energy into mechanical power. Then this mechanical power gets generated into electricity. Wind turbines make energy by the wind turning the large blades, which spin a shaft that is connected to the large blades, which then operates the generator making electricity.
The Wind Turbine is a device that converts the kinetic energy of the wind into kinetic energy of turbines. The turbines turn to generate electricity but they work only when there is wind. The efficiency is 30-40%. The environmental impacts are needs many large turbines to generate electricity which can be noisy and unsightly. Turbines may endanger birds and bats.
The wind is an incredibly valuable renewable energy source and is in the forefront of renewable energy developments. It is used to convert wind energy into energy that can be harnessed and used via a variety of methods, including; wind turbines, windmills, sails and windpumps. For a renewable energy source, however, it is wind turbines that are used to generate electricity (see figure 1). Wind power has been used for this since the end of the nineteenth century, after Professor James Blyth of the Royal College of Science and Technology first attempted it (Boyle, 2012). However, It wasn’t until the 1980s that using wind power technology was sufficient enough to experience a rapid growth of the technology.
Wind is a form of solar energy. The term wind energy describes the process by which the wind is used to generate electricity or mechanical power. Wind turbines convert mechanical energy from the wind into electrical power. Wind turbines usually have three main parts. There are blades that connect to a central hub, a box behind the blades that contains the generator, and a long stem that connects to the ground. The way how it works is that the wind turns the blades, which spins a shaft that connects to a generator making electricity. After the electricity is produced it is sent through transmission lines to a substation that is sent to business and homes. For the sake of our planet, we must promote a renewable energy economy. Wind power can be a foundation of that sustainable energy future because it provides jobs in states that are building wind turbines, is a renewable energy source, and does not damage our environment. The environment will not be damaged by the pollution, the natural resources will not be used up, and there won’t be generating of hazardous wastes. Welcoming wind energy today will lay the foundation for a healthy tomorrow that will affect everyone in the United States. There are obstacles and challenges that will make it more difficult, but the environmental impact is well worth it to invest more money into wind energy.
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=
Alternative Energy - Wind, Solar, Hydro and Other Alt Energy Sources for Home Power. Web. 07 Dec. 2011. .