West Texas Wind Turbines

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• published: 07 Dec 2011
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A wind turbine is a device that converts kinetic energy from the wind into mechanical energy. If the mechanical energy is used to produce electricity, the device may be called a wind generator or wind charger. If the mechanical energy is used to drive machinery, such as for grinding grain or pumping water, the device is called a windmill or wind pump. Developed for over a millennium, today's wind turbines are manufactured in a range of vertical and horizontal axis types. The smallest turbines are used for applications such as battery charging or auxiliary power on sailing boats; while large grid-connected arrays of turbines are becoming an increasingly large source of commercial electric power.Wind turbines have to be located at least 500milimeters away from your house if not it can cause damage such as window cracking and large vibrations Turbines used in wind farms for commercial production of electric power are usually three-bladed and pointed into the wind by computer-controlled motors. These have high tip speeds of over 320 kilometres per hour (200 mph), high efficiency, and low torque ripple, which contribute to good reliability. The blades are usually colored light gray to blend in with the clouds and range in length from 20 to 40 metres (66 to 130 ft) or more. The tubular steel towers range from 60 to 90 metres (200 to 300 ft) tall. The blades rotate at 10-22 revolutions per minute. At 22 rotations per minute the tip speed exceeds 90 metres per second (300 ft/s).[15][16] A gear box is commonly used for stepping up the speed of the generator, although designs may also use direct drive of an annular generator. Some models operate at constant speed, but more energy can be collected by variable-speed turbines which use a solid-state power converter to interface to the transmission system. All turbines are equipped with protective features to avoid damage at high wind speeds, by feathering the blades into the wind which ceases their rotation, supplemented by brakes. West Texas is a vernacular term applied to a region in the southwestern quadrant of the United States that primarily encompasses the arid and semi-arid lands in the western portion of the state of Texas. There is a general lack of consensus regarding the boundaries that separate East Texas and West Texas.[1] Walter Prescott Webb, the American historian and geographer, suggested that the 98th meridian separates East and West Texas.[2] The Texas writer A.C. Greene proposed that West Texas extends west of the Brazos River.[3] Perhaps, the truth is that there is no distinct line that separates East and West Texas. Rather, there are places that are clearly in West Texas and there are places that are clearly in East Texas, and then there are places that fall within a transitional zone between these two regions. West Texas is often subdivided according to distinct physiographic features. The portion of West Texas that lies west of the Pecos River is often referred to as "Far West Texas" or the "Trans-Pecos," a term first introduced in 1887 by the Texas geologist Robert T. Hill.[4] The Trans-Pecos lies within the Chihuahuan Desert, the most arid portion of the state. Another important subdivision of West Texas is the Llano Estacado, a vast region of high level plains that extends into Eastern New Mexico and the Texas Panhandle. To the east of the Llano Estacado lies the "redbed country" of the Rolling Plains and to the south of the Llano Estacado lies the Edwards Plateau. The Rolling Plains and the Edwards Plateau subregions act as transitional zones between East and West Texas.