Wind Turbines
Wind Turbines Rollover Demo PDF Project 2 Renee’ O’ Day Illustration Explanation Presentation The purpose of the illustration is to display the functional parts of a wind turbine inside and out. The illustration shows the inside of a wind turbine. The illustration shows the gears inside a wind turbine used to generate sustainable electricity. The turbine is sustained through battery power to keep the blades spinning and located inside the main body of the turbine is a system of gears that make the mechanism work, so that the wind mill will spin and stay perpetual through a combination of wind power and battery operation. The illustration is important to those interested in wind power, sustainable energy and anyone interested in physics. Wind turbines are not the primary source of electricity in most of the world. They are a choice alternative nuclear power. The illustration may be interesting to people in the field of engineering, people with an interest in the environment, such as activists or anyone with an interest in mechanics. The wind turbine is important because we need better sources of renewable energy in the United States as well as other first world nation, though there is already allot of wind turbines in a few third world nation we, activists have not been able to establish a strong foundation to develop renewable wind power here in the United States, Iran and most of Europe were nuclear power is abundant.
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Check My Flow: GE Uses Supercomputer to Model More Efficient Wind Turbines
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Wind is among the most efficient renewable energy (http://www.gereports.com/going-dutch/) sources.
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Still, there’s always room for improvement, and researchers are always trying to increase the power output of wind turbines. Now, researchers at GE Global Research are analyzing ways to boost wind turbine productivity by 2 percent. Given that 240GW of new wind installations is projected globally over the next five years, a two percent increase would create 5GW of additional wind power capacity. That’s enough to power every household in New York City, Boston, and Los Angeles, combined. A limiting factor in developing more powerful wind turbines is noise. GE’s wind blades do not pose
Turning Profit: How the Wind and the Cloud Make it Rain
noise issues today (http://www.gereports.com/how-loud-is-a-wind-turbine/). Researchers ensure this by measuring noise levels of blade sections in wind tunnels and of entire wind turbines in the field.
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One approach to boost the power output is to spin the rotors faster, but this also pushes the noise levels of the turbine beyond allowable limits. However, notes Giridhar Jothiprasad, a mechanical engineer with GE Global Research, “If you change the blade design to be quieter, you can spin the rotor faster to produce more power and still meet noise regulation standards.”
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The Art of Science: Supercomputers Help Scientists See What Microscopes and Cameras Can’t Capture (http://www.gereports.com/the-art-of-science/) 2 (http://www /the-windturbinegrowsup/#comme
Noise generation due to turbulent flow over the trailing edge of a wind-turbine airfoil. Dilatation contours from a Large Eddy Simulation (LES) are shown in the background. (Courtesy: Prof. Lele, Stanford University) High fidelity computer simulations enable the design of low noise blades by providing better insights
The Wind Turbine Grows Up: New “Intelligent” Wind Turbine Has a Rotor as Big as the London Eye
into noise sources and noise generation mechanisms. That’s why the GE researchers partnered with Stanford University and Sandia National Laboratory in New Mexico, home to the Red Mesa, one of the world’s fastest and most energy-efficient supercomputers (https://share.sandia.gov /news/resources/news_releases/oracle-award/#.Ugy0mlp4ZNs). The Red Mesa at Sandia is
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dedicated to alternative energy modeling projects that would take months or years to complete without its power. “Sandia and other DOE national laboratories are using high-performance computing resources to tackle complex design problems in wind energy, such as reducing turbine blade noise to achieve
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significant reductions in cost-of-energy,” says Matt Barone, of Sandia’s Aerosciences Department, formerly of the Wind Energy Technologies Department.
Can You Knit a Wind Turbine?: GE Wind Turbine Blades Made From Fabric Aim To Revolutionize Renewable Energy (http://www.gereports.com/can-you-knit-awind-turbine/) 48 (http://www /how-loudis-a-windturbine /#comment
Keep it Down: Sleeker wind turbine blades could produce more energy without producing more noise. To reduce the noise on the turbine blade, the researchers had to know where it was coming from. They ran high-fidelity Large Eddy Simulation (LES) code, developed at Stanford University, to predict
How Loud is a Wind Turbine?
the detailed fluid phenomena and resulting wind blade noise. The simulation ran continuously over a period of three months on the supercomputer.
(http://www.gereports.com/how-loud-is-a-windturbine/)
“Having access to Sandia’s supercomputer was invaluable in our ability to conduct these experiments and make discoveries that will bolster wind power’s potential,” says Mark Jonkhof, Wind Technology Platform Leader at GE Global Research. “By using high-performance computing to advance current engineering models that are used to predict blade noise, we can build quieter rotors with greater blade tip velocity that produce more power”, says Jonkhof. “This not only means lower energy costs for consumers, but also a significant reduction in greenhouse gas emissions.”
This entry was posted in Global Research (http://www.gereports.com/category/globalresearch/), Powering (http://www.gereports.com/category/powering/) and tagged Global Research (http://www.gereports.com/tag/global-research/), wind (http://www.gereports.com/tag/wind-2/). Bookmark the permalink (http://www.gereports.com/check-my-flow/).
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The Art of Science: Supercomputers Help Scientists See What Microscopes and Cameras Can’t Capture AUGUST 30, 2013 Scientists at GE Global Research have been using the world’s most powerful supercomputers to simulate everything from fuel flowing through jet engine nozzles to water drops turning into ice. The results can be rewarding beyond solving research riddles. “Many times our work generates images that are visually breathtaking,” says Rick Arthur, who leads the Advanced Computing Lab at GRC. Supercomputers are helping GE engineers speed up innovation, crack previously intractable problems, and shorten the business cycle. Take a look at our slideshow featuring a hypnotizing turbine flow, density gradients and other arresting images generated by GRC scientists.
Blades and Bones: The Many Faces of 3D Printing (http://www.gereports.com/blades-and-bones/) 1 (http://w
The “blue blobs” shown in this picture represent particles in an advanced nickel alloy used to manufacture high-pressure turbine rotors and cooling systems for jet engines. The model is a simulation of what happens to the size and distribution of the particles when the alloy rapidly cools at a rate of 200 degrees Fahrenheit per minute.
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It seems that major companies are getting a large benefit from basic research @ national labs that we all (through Tax dollars) pay for. Is there any participation or profit returning to the government when a breakthough is based on this information? What is the cost structure for the dissemination of this information?
Make Your Move: Makers Respond to GE 3D Printing Challenge, Send 100s of Designs (http://www.gereports.com/make-your-move/) 0
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Turbine - Wikipedia, the free encyclopedia
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From Wikipedia, the free encyclopedia Jump to: navigation, search For other uses, see Turbine (disambiguation). A steam turbine with the case opened A turbine, from the Greek "τύρβη" ("turbulance"), is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades so that they move and impart rotational energy to the rotor. Early turbine examples are windmills and waterwheels. Gas, steam, and water turbines usually have a casing around the blades that contains and controls the working fluid. Credit for invention of the steam turbine is given both to the British engineer Sir Charles Parsons (1854–1931), for invention of the reaction turbine and to Swedish engineer Gustaf de Laval (1845–1913), for invention of the impulse turbine. Modern steam turbines frequently employ both reaction and impulse in the same unit, typically varying the degree of reaction and impulse from the blade root to its periphery. The word "turbine" was coined in 1822 by the French mining engineer Claude Burdin from the Latin turbo, or vortex, in a memoir, "Des turbines hydrauliques ou machines rotatoires à grande vitesse", which he submitted to the Académie royale des sciences in Paris.[1] Benoit Fourneyron, a former student of Claude Burdin, built the first practical water turbine.
1 Theory of operation 2 Types 3 Uses 4 See also 5 Notes 6 Further reading 7 External links
Schematic of impulse and reaction turbines, where the rotor is the rotating part, and the stator is the stationary part of the machine. A working fluid contains potential energy (pressure head) and kinetic energy (velocity head). The fluid may be compressible or incompressible. Several physical principles are employed by turbines to collect this energy: Impulse turbines change the direction of flow of a high velocity fluid or gas jet. The resulting impulse spins the turbine and leaves the fluid flow with diminished kinetic energy. There is no pressure change of the fluid or gas in the turbine blades (the moving blades), as in the case of a steam or gas turbine, all the pressure drop takes place in the stationary blades (the nozzles). Before reaching the turbine, the fluid's pressure head is changed to velocity head by accelerating the fluid with a nozzle. Pelton wheels and de Laval turbines use this process exclusively. Impulse turbines do not require a pressure casement around the rotor since the fluid jet is
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Turbine - Wikipedia, the free encyclopedia
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created by the nozzle prior to reaching the blading on the rotor. Newton's second law describes the transfer of energy for impulse turbines. Reaction turbines develop torque by reacting to the gas or fluid's pressure or mass. The pressure of the gas or fluid changes as it passes through the turbine rotor blades. A pressure casement is needed to contain the working fluid as it acts on the turbine stage(s) or the turbine must be fully immersed in the fluid flow (such as with wind turbines). The casing contains and directs the working fluid and, for water turbines, maintains the suction imparted by the draft tube. Francis turbines and most steam turbines use this concept. For compressible working fluids, multiple turbine stages are usually used to harness the expanding gas efficiently. Newton's third law describes the transfer of energy for reaction turbines. In the case of steam turbines, such as would be used for marine applications or for land-based electricity generation, a Parsons type reaction turbine would require approximately double the number of blade rows as a de Laval type impulse turbine, for the same degree of thermal energy conversion. Whilst this makes the Parsons turbine much longer and heavier, the overall efficiency of a reaction turbine is slightly higher than the equivalent impulse turbine for the same thermal energy conversion. In practice, modern turbine designs use both reaction and impulse concepts to varying degrees whenever possible. Wind turbines use an airfoil to generate a reaction lift from the moving fluid and impart it to the rotor. Wind turbines also gain some energy from the impulse of the wind, by deflecting it at an angle. Crossflow turbines are designed as an impulse machine, with a nozzle, but in low head applications maintain some efficiency through reaction, like a traditional water wheel. Turbines with multiple stages may utilize either reaction or impulse blading at high pressure. Steam turbines were traditionally more impulse but continue to move towards reaction designs similar to those used in gas turbines. At low pressure the operating fluid medium expands in volume for small reductions in pressure. Under these conditions, blading becomes strictly a reaction type design with the base of the blade solely impulse. The reason is due to the effect of the rotation speed for each blade. As the volume increases, the blade height increases, and the base of the blade spins at a slower speed relative to the tip. This change in speed forces a designer to change from impulse at the base, to a high reaction style tip. Classical turbine design methods were developed in the mid 19th century. Vector analysis related the fluid flow with turbine shape and rotation. Graphical calculation methods were used at first. Formulae for the basic dimensions of turbine parts are well documented and a highly efficient machine can be reliably designed for any fluid flow condition. Some of the calculations are empirical or 'rule of thumb' formulae, and others are based on classical mechanics. As with most engineering calculations, simplifying assumptions were made. Velocity triangles can be used to calculate the basic performance of a turbine stage. Gas exits the stationary turbine nozzle guide vanes at absolute velocity Va1. The rotor rotates at velocity U. Relative to the rotor, the velocity of the gas as it impinges on the rotor entrance is Vr1. The gas is turned by the rotor and exits, relative to the rotor, at velocity Vr2. However, in absolute terms the rotor exit velocity is Va2. The velocity triangles are constructed using these various velocity vectors. Velocity triangles can be constructed at any section through the blading (for example: hub, tip, midsection and so on) but are usually shown at the mean stage radius. Mean performance for the stage can be calculated from the velocity triangles, at this radius, using the Euler equation: \Delta\;h = u\cdot \Delta\;v_w Hence: \left (\frac{\Delta\;h}{T}\right) = \left(\frac{u}{\sqrt{T}}\right)\cdot\left(\frac{\Delta\;v_w} {\sqrt{T}}\right)
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Turbine - Wikipedia, the free encyclopedia
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where: \Delta\;h =\, specific enthalpy drop across stage T =\, turbine entry total (or stagnation) temperature u =\, turbine rotor peripheral velocity \Delta\;v_w =\, change in whirl velocity The turbine pressure ratio is a function of \left(\frac{\Delta\;H}{T}\right) and the turbine efficiency. Modern turbine design carries the calculations further. Computational fluid dynamics dispenses with many of the simplifying assumptions used to derive classical formulas and computer software facilitates optimization. These tools have led to steady improvements in turbine design over the last forty years. The primary numerical classification of a turbine is its specific speed. This number describes the speed of the turbine at its maximum efficiency with respect to the power and flow rate. The specific speed is derived to be independent of turbine size. Given the fluid flow conditions and the desired shaft output speed, the specific speed can be calculated and an appropriate turbine design selected. The specific speed, along with some fundamental formulas can be used to reliably scale an existing design of known performance to a new size with corresponding performance. Off-design performance is normally displayed as a turbine map or characteristic.
Steam turbines are used for the generation of electricity in thermal power plants, such as plants using coal, fuel oil or nuclear power. They were once used to directly drive mechanical devices such as ships' propellers (for example the Turbinia, the first turbine-powered steam launch,[2]) but most such applications now use reduction gears or an intermediate electrical step, where the turbine is used to generate electricity, which then powers an electric motor connected to the mechanical load. Turbo electric ship machinery was particularly popular in the period immediately before and during World War II, primarily due to a lack of sufficient gear-cutting facilities in US and UK shipyards. Gas turbines are sometimes referred to as turbine engines. Such engines usually feature an inlet, fan, compressor, combustor and nozzle (possibly other assemblies) in addition to one or more turbines. Transonic turbine. The gas flow in most turbines employed in gas turbine engines remains subsonic throughout the expansion process. In a transonic turbine the gas flow becomes supersonic as it exits the nozzle guide vanes, although the downstream velocities normally become subsonic. Transonic turbines operate at a higher pressure ratio than normal but are usually less efficient and uncommon. Contra-rotating turbines. With axial turbines, some efficiency advantage can be obtained if a downstream turbine rotates in the opposite direction to an upstream unit. However, the complication can be counter-productive. A contra-rotating steam turbine, usually known as the Ljungström turbine, was originally invented by Swedish Engineer Fredrik Ljungström (1875–1964) in Stockholm, and in partnership with his brother Birger Ljungström he obtained a patent in 1894. The design is essentially a multi-stage radial turbine (or pair of 'nested' turbine rotors) offering great efficiency, four times as large heat drop per stage as in the reaction (Parsons) turbine, extremely compact design and the type met particular success in backpressure power plants. However, contrary to other designs, large steam volumes are handled with difficulty and only a combination with axial flow turbines (DUREX) admits the turbine to be built for power greater than ca 50 MW. In marine applications only about 50 turboelectric units were ordered (of which a considerable amount were finally sold to land plants) during 1917-19, and during 1920-22 a few turbo-mechanic not very successful units were sold.[3] Only a few turbo-electric marine plants were still in use in the late 1960s (ss Ragne, ss Regin) while most land
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plants remain in use 2010. Statorless turbine. Multi-stage turbines have a set of static (meaning stationary) inlet guide vanes that direct the gasflow onto the rotating rotor blades. In a statorless turbine the gasflow exiting an upstream rotor impinges onto a downstream rotor without an intermediate set of stator vanes (that rearrange the pressure/velocity energy levels of the flow) being encountered. Ceramic turbine. Conventional high-pressure turbine blades (and vanes) are made from nickel based alloys and often utilise intricate internal air-cooling passages to prevent the metal from overheating. In recent years, experimental ceramic blades have been manufactured and tested in gas turbines, with a view to increasing rotor inlet temperatures and/or, possibly, eliminating aircooling. Ceramic blades are more brittle than their metallic counterparts, and carry a greater risk of catastrophic blade failure. This has tended to limit their use in jet engines and gas turbines to the stator (stationary) blades. Shrouded turbine. Many turbine rotor blades have shrouding at the top, which interlocks with that of adjacent blades, to increase damping and thereby reduce blade flutter. In large land-based electricity generation steam turbines, the shrouding is often complemented, especially in the long blades of a low-pressure turbine, with lacing wires. These wires pass through holes drilled in the blades at suitable distances from the blade root and are usually brazed to the blades at the point where they pass through. Lacing wires reduce blade flutter in the central part of the blades. The introduction of lacing wires substantially reduces the instances of blade failure in large or low-pressure turbines. Shroudless turbine. Modern practice is, wherever possible, to eliminate the rotor shrouding, thus reducing the centrifugal load on the blade and the cooling requirements. Bladeless turbine uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional turbine. Water turbines Pelton turbine, a type of impulse water turbine. Francis turbine, a type of widely used water turbine. Kaplan turbine, a variation of the Francis Turbine. Turgo turbine, a modified form of the Pelton wheel. Cross-flow turbine, also known as Banki-Michell turbine, or Ossberger turbine. Wind turbine. These normally operate as a single stage without nozzle and interstage guide vanes. An exception is the Éolienne BollÊe, which has a stator and a rotor. Velocity compound "Curtis". Curtis combined the de Laval and Parsons turbine by using a set of fixed nozzles on the first stage or stator and then a rank of fixed and rotating blade rows, as in the Parsons or de Laval, typically up to ten compared with up to a hundred stages of a Parsons design. The overall efficiency of a Curtis design is less than that of either the Parsons or de Laval designs, but it can be satisfactorily operated through a much wider range of speeds, including successful operation at low speeds and at lower pressures, which made it ideal for use in ships' powerplant. In a Curtis arrangement, the entire heat drop in the steam takes place in the initial nozzle row and both the subsequent moving blade rows and stationary blade rows merely change the direction of the steam. Use of a small section of a Curtis arrangement, typically one nozzle section and two or three rows of moving blades, is usually termed a Curtis 'Wheel' and in this form, the Curtis found widespread use at sea as a 'governing stage' on many reaction and impulse turbines and turbine sets. This practice is still commonplace today in marine steam plant. Pressure compound multistage impulse, or "Rateau". The Rateau employs simple impulse rotors separated by a nozzle diaphragm. The diaphragm is essentially a partition wall in the turbine with a series of tunnels cut into it, funnel shaped with the broad end facing the previous stage and the narrow the next they are also angled to direct the steam jets onto the impulse rotor.
Almost all electrical power on Earth is produced with a turbine of some type. Very high efficiency steam turbines harness about 40% of the thermal energy, with the rest exhausted as waste heat.
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Turbine - Wikipedia, the free encyclopedia
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Most jet engines rely on turbines to supply mechanical work from their working fluid and fuel as do all nuclear ships and power plants. Turbines are often part of a larger machine. A gas turbine, for example, may refer to an internal combustion machine that contains a turbine, ducts, compressor, combustor, heat-exchanger, fan and (in the case of one designed to produce electricity) an alternator. Combustion turbines and steam turbines may be connected to machinery such as pumps and compressors, or may be used for propulsion of ships, usually through an intermediate gearbox to reduce rotary speed. Reciprocating piston engines such as aircraft engines can use a turbine powered by their exhaust to drive an intake-air compressor, a configuration known as a turbocharger (turbine supercharger) or, colloquially, a "turbo". Turbines can have very high power density (i.e. the ratio of power to weight, or power to volume). This is because of their ability to operate at very high speeds. The Space Shuttle's main engines used turbopumps (machines consisting of a pump driven by a turbine engine) to feed the propellants (liquid oxygen and liquid hydrogen) into the engine's combustion chamber. The liquid hydrogen turbopump is slightly larger than an automobile engine (weighing approximately 700 lb) and produces nearly 70,000 hp (52.2 MW). Turboexpanders are widely used as sources of refrigeration in industrial processes. Military jet engines, as a branch of gas turbines, have recently been used as primary flight controller in post-stall flight using jet deflections that are also called thrust vectoring.[4] The U.S. FAA has also conducted a study about civilizing such thrust vectoring systems to recover jetliners from catastrophes.
Archimedes screw Balancing machine Rotordynamics Secondary flow Segner wheel Turbo-alternator Turbodrill Turbofan Turbojet Turboshaft Turboprop Vibration of rotating structures
1. ^ In 1822, Claude Burdin submitted his memoir "Des turbines hydrauliques ou machines rotatoires à grande vitesse" (Hydraulic turbines or high-speed rotary machines) to the Académie royale des sciences in Paris. (See: Annales de chimie et de physique, vol. 21, page 183 (1822).) However, it was not until 1824 that a committee of the Académie (composed of Prony, Dupin, and Girard) reported favorably on Burdin's memoir. See: Prony and Girard (1824) "Rappport sur le mémoire de M. Burdin intitulé: Des turbines hydrauliques ou machines rotatoires à grande vitesse" (Report on the memoir of Mr. Burdin titled: Hydraulic turbines or high-speed rotary machines), Annales de chimie et de physique, vol. 26, pages 207-217.
10/21/2013 11:14 PM
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Wind Power News | Wind Power Forum | Wind Power Directory | Videos Wind turbines are used to generate electricity from the kinetic power of the wind. Historical they were more frequently used as a mechanical device to turn machinery. There are two main kinds of wind generators, those with a vertical axis, and those with a horizontal axis. Wind turbines can be used to generate large amounts of electricity in wind farms both onshore and offshore. The articles on this page are about wind turbines. Video Blog | YouTube | Favorites | Playlists | RSS | Submit
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16Mar
Increasing the Efficiency of Wind Turbine Blades To ensure wind turbines that are big in size work in a better manner, a new kind of air-flow technology may soon be introduced. Apart from other aspects, it will focus on efficiency of blades used in the wind turbines. The technology will help in increasing the efficiency of these turbines under various wind conditions. This is a significant development in the area of renewable energy after new wind-turbine power generation capacity got added to new coal-fired power generation in 2008. View Comments 29Nov
The Wind Energy Industry is Nothing New Though our scientists may claim that they are inventing something new by using wind as a source of generating energy, the truth is that wind is being used for centuries for this purpose. An example of this is an article published in 1838, which clearly shows that even in those times, wind was considered an important source of energy. Here are a few quotes that were recorded in the past, which prove that wind was always important in generating energy. View Comments 17Aug
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Wind Energy Instruments getting Bigger & Better Renewable energy production and demand growth is gaining momentum in many ways across the world. There is a booming demand of wind power today and all wind energy equipment manufacturers are gearing up to meet the demand and take advantage of it. Wind power capacity growth will be reaching 447GW in the next five years and by year 2014 end, Asia will lead the world in installed wind capacity. Enercon is amongst the other manufacturers who are focusing on 3MV-class wind turbines based on E-82/2.0. Without increasing the component sizes, there are new designs to operate at 3MW power. There will be a 3-6% increased yield because of these innovative designs as claimed by the Enercon. View Comments 16Jun
Airborne Wind Turbines? Yes, the day is not far off when reaching for sky is the new motto for generating cost-effective renewable energy. Initially it was considered to be technically non-viable to tap high-altitude winds. But today, technicallyadvanced materials and innovative computer know-how are giving new life to this scheme with innovative autonomous aerial structures using wind energy to generate power. View Comments 27May
Scientists Study Fish Schools for Wind Farm Ideas Presently Fluid Dynamics Expert, John Dabiri, is very much on the quest of improving designs of wind turbines. Spotting behaviours that may throw light on energy-related practices in biological system and trying to implement that in real-life situations is part of that quest and Mr.Dabiri is jubilant that he is learning lessons from a school of fish! Water-energy, and wind energy are both studied. View Comments 18May
Bladeless Wind Turbine – Inspired by Nikola Tesla A research company in New Hampshire recently patented its bladeless wind turbine, which is based on a patent issued to Nikola Tesla in 1913. This wind turbine is christened as the Fuller Wind Turbine. This turbine is developed by Solar Aero. The specialty of Fuller Wind Turbine is it has only one rotating part, known as the turbine-driveshaft. The entire machinery is assembled inside a housing. Wind turbines are often disliked by environmentalists because they kill birds and bats and often generate noise for the residents living nearby. View Comments 28Apr
FloDesign Aims to Expand Wind Turbine Business
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Backed with a $3 million assistance from the Massachusetts Clean Energy Center (MassCEC) Wilbraham-based FloDesign Wind Turbine Corp. will expand its operations in the state. The company is recognized as the developer of a U.S. Department of Energy-recognized "transformative" wind energy technology. It will maintain its aerodynamic research center in Wilbraham along with establishing a new corporate headquarters and product development center in the historic Waltham Watch Factory. The company also intends to assemble its first wind turbines in Massachusetts. If everything goes according to the plan, the company will establish a new benchmark for other wind energy technology companies to look up to and aspire to. View Comments 01Mar
Norwegian Company Develops World’s Largest Wind Turbine As fossil fuels continue to diminish and climate change poses an ever-increasing threat, scientists around the world are searching for new and more efficient methods of generating energy. Wind energy is one of the more promising alternative energy sources and Norwegian scientists are currently in the development stages of what promises to be the world’s largest wind turbine. As if creating the biggest wind turbine in the world was not enough, it also floats. Current plans for the world’s largest wind turbine have the machine standing 533 feet tall. View Comments 16Feb
A Rose Wind Turbine by Any Other Name… The one knock on wind energy is that it is not portable. Until recently, there were few if any portable devices that were available to literally take wind power on the go. That is changing quick as there are several “back-pack” style devices that are on the market. The Rose Wind Turbine is the latest invention to be introduced to this ever growing energy niche. The Rose Wind Turbine is a small portable device that is small enough to fit into the trunk of the car and barely be noticed. However, once this portable wind turbine comes out, it is sure to turn heads. View Comments 08Feb
Jet Engines the Inspiration for New Wind Power Technology Wind power has recently received a nice boost as one of the hottest forms of energy on the market. When comparing the recent market growth against all forms of energy, both renawables and non-renewables, wind turbines seem to be jumping to the head of the pack. While it still has a way to go before it catches up to solar, it is gaining ground rather quickly. Something that will help pick up the pace even further is new technology that is coming from FloDesign. Their truly unique wind turbine is actually based on the design of a jet engine instead of the traditional windmills that we see all across the country. Their concept seems to be a simple one, but it extremely effective. View Comments
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Is It Possible To Convert To 100% Wind Power? With all the talk of going green, the question had been thrown out many times if there will ever be a time that we can use nothing but renewable energy to power our world. A small island in Denmark is trying answer that question with a resounding yes as they power up every single day via nothing but wind power. The Danish island is the ideal setting as the wind literally never stops blowing. The North Sea offers the perfect opportunity to capitalize on the winds that come off of the sea and for them to use wind power as their primary source of power. As a matter of fact, the wind power that they are using is their ONLY source of power. View Comments 26Jan
Wind Turbine Power Goes Portable with Foldable Wind Generator Renewable energy is one of the hottest things on the market right now but until recently, solar power has been getting most of the attention. While there are plenty of techno gadgets, like solar briefcases and solar laptop chargers, that can have solar power on the run, very few if any items exist for other sources of renewable energy to become portable. The foldable wind generator has all the right ideas, but may still be just a bit ahead of its time. View Comments 21Dec
The Kite Wind Generator It's an expert estimation that the total energy stored in wind is 100 times higher than actually needed by humans on this earth. The catch is that we have to learn and devise ways to trap this wind power blowing across the planet earth. Experts tell us one more thing that most of the wind energy is available at high altitude and we can’t manufacture turbines of that height. So we have to think of new ways to trap that wind power blowing at a significant height. Some experts estimate that the total energy contained in wind is 100 times the amount needed by everyone on the planet. However, most of this energy is at high altitudes, far beyond the reach of any wind turbine. View Comments 18Sep
GE to Manufacture Offshore Wind Turbines GE, the US industrial group, is promoting and showing confidence in offshore wind technology by buying ScanWind, which makes direct-drive turbine components. This move will help in generating thousands of new jobs in the field of designing and manufacturing turbines. This move will affirm the confidence of investors in the fledgling offshore wind industry, which has been weighed down by concerns about costs and reliability. GE is moving ahead with establishing turbine manufacturing facilities to serve the European markets at first. They have to make up their mind about the size of the
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investment and location. View Comments 24Jul
What factors affect the output of wind turbines? Wind energy is undoubtedly one of the cleanest forms of producing power from a renewable source. There is no pollution, there is no burning of fossil fuels, and unless something very drastic happens, you don’t run out of wind. But it’s not like you can erect a wind turbine anywhere and it will start generating power for you. There are lots of factors that can make an impact on the amount of energy you can generate out of wind. View Comments 15Jun
Small, Low Speed Wind Turbine Most of us want to reduce our carbon footprints but currently most of the alternative energy products are simply unavailable for urban population that lives in metros. But gradually the scenario of alternative energy is changing and manufacturers have started thinking from common person’s point of view. Recently EarthTronics, which is based in Muskegon, Michigan, has developed a wind turbine that can be used by individual homes. EarthTronics also claims that it can operate at speeds as low as 2 miles an hour. Consequently, homeowners this fall will be able to buy a wind turbine at hardware stores that tackles the small wind industry's bete noire: slow wind. This turbine is named as Honeywell Wind Turbine and it will be distributed through Ace Hardware stores in the U.S. It will be sold for $4,500. WindTronics developed the turbine and licensed the technology to buildings systems giant Honeywell. View Comments 26May
Using Existing Infrastructure for Wind Turbines The Metropolis Magazine has been holding Next Generation Design Competition since 2003. They want to provide a platform for young designers to promote the spirit of activism, social involvement, and entrepreneurship. They offer prize money of $ 10,000. But the real attraction is the publicity given to the projects of winners and runners-up. This recognition helps abstract ideas take concrete forms. For 2009, the theme for the Next Generation Design Competition was: How do we fix our energy addiction? They offered some guidelines, "Think about how we live and work, what we use, how we get where we need to go, hidden costs to our pocket books and the environment, across the whole design spectrum. Focus on one area that needs fixing—products, interiors, buildings and landscape, communication systems, or anything else you can imagine—and develop your idea fully. And above all, think of our energy addiction as a design problem at all scales." View Comments 19May
WindCube Generates Electricity in Moderate Wind Wind power is the fastest growing industry in the alternative energy sector. Wind turbines generate clean and green power for us but they have certain precondition. One of it is the power unit has to be set up in strong wind area. But Green Energy Technologies has developed a brand new wind power generator known as the WindCube. It is smaller compared to the normal wind generator. WindCube is specially designed to set up on the roof of a building in
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urban and rural areas. WindCube carries a 22 x 22 x 12 feet framework and its single unit can produce a maximum of 60kW of power. Mark L. Cironi, who is the president and founder of Green Energy Technologies, explains, "Building owners anywhere can consider being a part of the renewable energy picture. With WindCube, it’s not necessary to have the wind of Kansas or Nebraska to become a generator of wind power. In states with excellent renewable energy incentives, moderate wind and high electric rates, the payback can be as little as three years." View Comments 15May
Minneapolis International Airport Installs Wind Generators These days many companies are exhibiting awareness about clean and green energy and trying to use that technology for reducing costs too. Recently Minneapolis-St. Paul International Airport has set up ten wind-powered electricity generators. They are using the energy to power an electric utility vehicle. We are acquainted with the fact that airports are windy places. So a knowledgeable management can utilize this air power and boost its environmental credentials too. They have installed ten 1 kW Aerovironment wind turbines on top of the airport fire station to harness the power of prevailing northwest winds. The turbines are expected to generate 10 kilowatts of electricity an hour. They are powering their fully-electric Cushman Motors e-Ride exv2 utility vehicle with the energy generated by these turbines. Their utility vehicle has a range of 45-55 miles and costs around $200 a year to run. View Comments 07May
Wind Energizer Donut for More Efficient Turbines We all know about the impending future of the fossil fuels. Ultimately we will be forced to look for alternative energy fuels. Those countries who have resources and infrastructure are taking up these challenges very intelligently. Scientists and researchers know that existing alternative sources of energy can’t take up the challenges created by total exhaustion of fossil fuel. So they are continuously trying to better the existing technologies of the sources of alternative fuels. This time Leviathan Energy presents a technology for new and existing wind farms to produce more energy from a relatively small investment, a solution every manufacturer worth his/her salt wants i.e. more by investing less! View Comments Page 1 of 2 12»
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Wind Turbine News Tuesday, October 22nd, 2013 Lebanon Township to hold public hearing on wind, solar and wood-burning energy ... - Hunterdon County Democrat - NJ.com Students air out renewable energy - Abilene Recorder Chronicle Governor touts wind energy potential as giant turbine takes center stage in ... - MLive.com
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Where Wind Could Become the Primary Source of Power - Greentech Media (blog) WindTronics Launches the Honeywell Wind Turbine for Home and Business Owners ... - Your Renewable News (press release) School Leads Way in Environmental Activism - Fenceviewer CMI to use renewable energy to produce potable water - Government of Jamaica, Jamaica Information Service Region going green with proposed renewable energy projects - Clovis News Journal Transit authority breaks ground for wind turbine - New England Business Bulletin AICC Installs Wind Turbine,Fitness Elliptical as Energy Alternatives - Daily Rosetta Headlines by FeedBurner
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Vestas and Gamesa win big in Texas Infinis plans IPO Samsung's 7MW prototype gets ready for testing Gamesa boss pleads with Spanish government Samsung's 7MW prototype ready for testing Iberdrola wins 61MW Kenyan contract Arkhenspaces’ Taichung Cultural Center Design Features a Wind Power-Generating Green Wall Quadran and Ideol unite for floating turbine project Analysis - legal storm looms over France's offshore plan Sinovel closes in on 10MW turbine Headlines by FeedBurner
Wind Turbine Resources All small wind turbines An index of all the world’s small wind turbines. Helix Wind Helix Wind is an elegant solution for home and small business owners. Powerful enough to supply your needs yet harmonious with the environment, the strength of the wind is captured by our unique and highly efficient vertical blade design. The Wind is Free! This website documents the design and construction of a home made wind powered generator or wind turbine. Wikipedia: Wind Turbine A wind turbine is a machine for converting the kinetic energy in wind into mechanical energy. Wind Energy Web directory of information about home wind power generators and how wind energy works. Wind Turbines A social network for the wind turbine community.
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