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Which Are Advantages Of Using Nuclear Reactors To Generate Electricity? Check All That Apply.

Written By Wednesday, April 27, 2022 Add Comment Edit

Auto that converts wind energy into electric energy

This article is most wind-powered electrical generators. For air current-powered machinery used to grind grain or pump water, come across Windmill and Windpump.

A air current turbine is a device that converts the kinetic energy of current of air into electrical energy. Hundreds of thousands of large turbines, in installations known as current of air farms, at present generate over 650 gigawatts of power, with sixty GW added each yr.[ane] They are an increasingly of import source of intermittent renewable energy, and are used in many countries to lower energy costs and reduce reliance on fossil fuels. One report claimed that, as of 2009,[update] air current had the "lowest relative greenhouse gas emissions, the least water consumption demands and... the most favourable social impacts" compared to photovoltaic, hydro, geothermal, coal and gas energy sources.[2]

Smaller wind turbines are used for applications such as battery charging for auxiliary ability for boats or caravans, and to power traffic alert signs. Larger turbines can contribute to a domestic power supply while selling unused ability back to the utility supplier via the electric grid.

Wind turbines are manufactured in a wide range of sizes, with either horizontal or vertical axes.

History

James Blyth's electricity-generating wind turbine, photographed in 1891

Nashtifan wind turbines in Sistan, Iran.

The windwheel of Hero of Alexandria (10 AD – seventy CE) marks 1 of the first recorded instances of wind powering a machine in history.[3] [iv] However, the start known applied wind ability plants were built in Sistan, an Eastern province of Persia (now Islamic republic of iran), from the 7th century. These "Panemone" were vertical axle windmills, which had long vertical drive shafts with rectangular blades.[5] Fabricated of six to twelve sails covered in reed matting or cloth material, these windmills were used to grind grain or draw upwardly h2o, and were used in the gristmilling and sugarcane industries.[6]

Current of air power start appeared in Europe during the Middle Ages. The offset historical records of their use in England appointment to the 11th or 12th centuries, at that place are reports of German crusaders taking their windmill-making skills to Syria around 1190.[7] By the 14th century, Dutch windmills were in employ to drain areas of the Rhine delta. Advanced wind turbines were described past Croatian inventor Fausto Veranzio. In his volume Machinae Novae (1595), he described vertical axis wind turbines with curved or 5-shaped blades.

The first electricity-generating wind turbine was a bombardment charging machine installed in July 1887 past Scottish academic James Blyth to light his holiday home in Marykirk, Scotland.[eight] Some months afterward American inventor Charles F. Brush was able to build the first automatically operated air current turbine, after consulting local Academy professors and colleagues Jacob S. Gibbs and Brinsley Coleberd and successfully getting the blueprints peer-reviewed for electricity production.[8] Although Blyth's turbine was considered uneconomical in the United Kingdom,[8] electricity generation by air current turbines was more than cost constructive in countries with widely scattered populations.[7]

The first automatically operated wind turbine, built in Cleveland in 1887 past Charles F. Castor. It was 60 anxiety (18 m) alpine, weighed iv tons (3.vi metric tonnes) and powered a 12 kW generator.[9]

In Kingdom of denmark past 1900, there were nearly 2500 windmills for mechanical loads such as pumps and mills, producing an estimated combined peak power of about 30 megawatts (MW). The largest machines were on 24-meter (79 ft) towers with four-bladed 23-meter (75 ft) diameter rotors. By 1908, there were 72 wind-driven electrical generators operating in the United States from 5 kilowatts (kW) to 25 kW. Around the time of World State of war I, American windmill makers were producing 100,000 subcontract windmills each yr, mostly for water-pumping.[10]

By the 1930s, air current generators for electricity were common on farms, mostly in the Usa where distribution systems had not however been installed.

A forerunner of modern horizontal-axis current of air generators was in service at Yalta, USSR in 1931. This was a 100 kW generator on a 30-meter (98 ft) belfry, connected to the local vi.3 kV distribution organisation. Information technology was reported to take an almanac capacity factor of 32 percent, not much different from current wind machines.[xi] [12]

In the autumn of 1941, the starting time megawatt-class wind turbine was synchronized to a utility filigree in Vermont. The Smith–Putnam current of air turbine just ran for 1,100 hours before suffering a disquisitional failure. The unit was not repaired, because of a shortage of materials during the state of war.

The first utility filigree-connected wind turbine to operate in the Uk was congenital past John Brown & Visitor in 1951 in the Orkney Islands.[8] [xiii]

Despite these diverse developments, developments in fossil fuel systems most entirely eliminated any wind turbine systems larger than supermicro size. In the early on 1970s, however, anti-nuclear protests in Denmark spurred artisan mechanics to develop microturbines of 22 kW. Organizing owners into associations and co-operatives led to the lobbying of the regime and utilities and provided incentives for larger turbines throughout the 1980s and later. Local activists in Frg, nascent turbine manufacturers in Spain, and large investors in the U.s.a. in the early 1990s then lobbied for policies that stimulated the industry in those countries.

It has been argued that expanding use of wind power will lead to increasing geopolitical competition over disquisitional materials for wind turbines such as rare globe elements neodymium, praseodymium, and dysprosium. Even so, this perspective has been criticised for declining to recognise that almost wind turbines do not use permanent magnets and for underestimating the ability of economic incentives for expanded production of these minerals.[14]

Resource

Wind Power Density (WPD) is a quantitative measure of wind energy available at any location. Information technology is the mean annual ability available per square meter of swept area of a turbine, and is calculated for dissimilar heights in a higher place basis. Calculation of air current power density includes the outcome of wind velocity and air density.[15]

Wind turbines are classified by the wind speed they are designed for, from form I to course III, with A to C referring to the turbulence intensity of the air current.[16]

Form Avg Wind Speed (chiliad/s) Turbulence
IA x 16%
IB 10 xiv%
IC ten 12%
IIA 8.5 16%
IIB 8.5 14%
IIC viii.five 12%
IIIA vii.five 16%
IIIB 7.five fourteen%
IIIC 7.5 12%

Efficiency

Conservation of mass requires that the amount of air entering and exiting a turbine must be equal. Accordingly, Betz's law gives the maximal achievable extraction of wind ability past a wind turbine as 16⁄27 (59.3%) of the rate at which the kinetic energy of the air arrives at the turbine.[17]

The maximum theoretical power output of a wind machine is thus xvi⁄27 times the rate at which kinetic free energy of the air arrives at the constructive disk area of the machine. If the effective area of the disk is A, and the wind velocity five, the maximum theoretical power output P is:

P = xvi 27 1 2 ρ v three A = 8 27 ρ 5 3 A {\displaystyle P={\frac {sixteen}{27}}{\frac {1}{2}}\rho v^{3}A={\frac {eight}{27}}\rho v^{three}A} ,

where ρ is the air density.

Current of air-to-rotor efficiency (including rotor blade friction and drag) are amid the factors affecting the final price of wind ability.[18] Farther inefficiencies, such as gearbox losses, generator and converter losses, reduce the power delivered by a air current turbine. To protect components from undue wear, extracted ability is held constant above the rated operating speed as theoretical ability increases at the cube of wind speed, further reducing theoretical efficiency. In 2001, commercial utility-connected turbines delivered 75% to 80% of the Betz limit of power extractable from the wind, at rated operating speed.[19] [20] [ needs update ]

Efficiency tin decrease slightly over fourth dimension, i of the primary reasons being grit and insect carcasses on the blades which alters the aerodynamic contour and essentially reduces the lift to drag ratio of the airfoil. Assay of 3128 wind turbines older than x years in Kingdom of denmark showed that half of the turbines had no decrease, while the other half saw a production decrease of one.2% per year.[21]

In general, more stable and constant atmospheric condition conditions (most notably wind speed) result in an boilerplate of xv% greater efficiency than that of a current of air turbine in unstable weather conditions, thus allowing up to a 7% increase in wind speed under stable conditions. This is due to a faster recovery wake and greater flow entrainment that occur in conditions of higher atmospheric stability. However, current of air turbine wakes have been found to recover faster under unstable atmospheric conditions as opposed to a stable environment.[22]

Different materials have been institute to have varying furnishings on the efficiency of air current turbines. In an Ege University experiment, three wind turbines (Each with three blades with diameters of i meter) were constructed with blades made of different materials: A drinking glass and glass/carbon epoxy, glass/carbon, and glass/polyester. When tested, the results showed that the materials with college overall masses had a greater friction moment and thus a lower ability coefficient.[23]

The air velocity is the major contributor for the turbine efficiency. This is the reason for the importance of choosing the correct location. The wind velocity will be high near the shore because of the temperature difference betwixt the state and the sea, another option is to put it on mount ridges. The higher the air current turbine will exist, the current of air velocity will be higher in boilerplate. Windbreak tin also increase the current of air velocity most the turbine.[24]

Types

The iii chief types: VAWT Savonius, HAWT towered; VAWT Darrieus as they appear in functioning

Wind turbines can rotate about either a horizontal or a vertical centrality, the former beingness both older and more common.[25] They can also include blades or be bladeless.[26] Vertical designs produce less power and are less common.[27]

Horizontal axis

Components of a horizontal centrality wind turbine (gearbox, rotor shaft and restriction assembly) existence lifted into position

Large three-bladed horizontal-centrality wind turbines (HAWT) with the blades upwind of the tower produce the overwhelming bulk of wind power in the world today. These turbines take the main rotor shaft and electric generator at the top of a tower, and must be pointed into the wind. Modest turbines are pointed by a simple wind vane, while big turbines by and large use a wind sensor coupled with a yaw organization. Most accept a gearbox, which turns the deadening rotation of the blades into a quicker rotation that is more than suitable to drive an electrical generator.[28] Some turbines use a unlike type of generator suited to slower rotational speed input. These don't need a gearbox and are called directly-drive, meaning they couple the rotor directly to the generator with no gearbox in between. While permanent magnet direct-drive generators tin be more costly due to the rare globe materials required, these gearless turbines are sometimes preferred over gearbox generators because they "eliminate the gear-speed increaser, which is susceptible to significant accumulated fatigue torque loading, related reliability issues, and maintenance costs."[29] There is also the pseudo direct drive mechanism, which has some advantages over the permanent magnet directly drive mechanism.[thirty] [31]

One Energy in Findlay, OH assembles one of their permanent magnet direct-drive wind turbines.

The rotor of a gearless wind turbine beingness prepare. This particular turbine was prefabricated in Frg, earlier being shipped to the U.S. for assembly.

Most horizontal axis turbines accept their rotors upwind of the supporting tower. Downwind machines have been built, because they don't need an additional mechanism for keeping them in line with the wind. In high winds, the blades can also be allowed to curve, which reduces their swept area and thus their wind resistance. Despite these advantages, upwind designs are preferred, because the change in loading from the wind every bit each blade passes backside the supporting tower tin cause impairment to the turbine.

Turbines used in current of air farms for commercial production of electric power are commonly 3-bladed. These have low torque ripple, which contributes to good reliability. The blades are commonly colored white for daytime visibility by shipping and range in length from twenty to 80 meters (66 to 262 ft). The size and height of turbines increase yr by year. Offshore wind turbines are built up to 8 MW today and have a blade length upward to 80 meters (260 ft). Designs with x to 12 MW were in preparation in 2018,[32] and a "15 MW+" image with 3 118 meters (387 ft) blades is planned to be constructed in 2022.[33] Usual multi megawatt turbines have tubular steel towers with a meridian of 70m to 120chiliad and in extremes upwardly to 160k.

Vertical axis

A vertical centrality Twisted Savonius blazon turbine.

Vertical-axis current of air turbines (or VAWTs) accept the chief rotor shaft arranged vertically. One advantage of this organisation is that the turbine does not demand to exist pointed into the wind to be effective, which is an advantage on a site where the wind direction is highly variable. It is also an advantage when the turbine is integrated into a edifice because it is inherently less steerable. Also, the generator and gearbox can be placed almost the ground, using a direct drive from the rotor assembly to the ground-based gearbox, improving accessibility for maintenance. All the same, these designs produce much less free energy averaged over fourth dimension, which is a major drawback.[27] [34]

Vertical turbine designs take much lower efficiency than standard horizontal designs.[35] The key disadvantages include the relatively low rotational speed with the consequential higher torque and hence higher price of the drive train, the inherently lower power coefficient, the 360-degree rotation of the aerofoil within the wind menstruation during each cycle and hence the highly dynamic loading on the bract, the pulsating torque generated by some rotor designs on the bulldoze railroad train, and the difficulty of modelling the wind flow accurately and hence the challenges of analysing and designing the rotor prior to fabricating a prototype.[36]

When a turbine is mounted on a rooftop the building more often than not redirects wind over the roof and this tin can double the wind speed at the turbine. If the acme of a rooftop mounted turbine belfry is approximately 50% of the edifice peak it is near the optimum for maximum air current free energy and minimum wind turbulence. While air current speeds within the built environs are more often than not much lower than at exposed rural sites,[37] [38] dissonance may exist a concern and an existing structure may not adequately resist the additional stress.

Subtypes of the vertical centrality design include:

Darrieus wind turbine

"Eggbeater" turbines, or Darrieus turbines, were named after the French inventor, Georges Darrieus.[39] They have good efficiency, but produce large torque ripple and cyclical stress on the tower, which contributes to poor reliability. They also by and large require some external power source, or an additional Savonius rotor to start turning, because the starting torque is very low. The torque ripple is reduced past using 3 or more blades, which results in greater solidity of the rotor. Solidity is measured by blade surface area divided by the rotor surface area. Newer Darrieus type turbines are not held upwards by guy-wires merely have an external superstructure connected to the pinnacle bearing.[xl]

Giromill

A subtype of Darrieus turbine with straight, as opposed to curved, blades. The cycloturbine variety has variable pitch to reduce the torque pulsation and is self-starting.[41] The advantages of variable pitch are: high starting torque; a wide, relatively apartment torque curve; a higher coefficient of performance; more efficient functioning in turbulent winds; and a lower blade speed ratio which lowers blade angle stresses. Straight, V, or curved blades may be used.[42]

Savonius current of air turbine

These are drag-type devices with two (or more) scoops that are used in anemometers, Flettner vents (unremarkably seen on double-decker and van roofs), and in some high-reliability depression-efficiency ability turbines. They are always self-starting if in that location are at least three scoops.

Twisted Savonius is a modified savonius, with long helical scoops to provide smooth torque. This is often used as a rooftop wind turbine and has even been adjusted for ships.[43]

Parallel

The parallel turbine is similar to the crossflow fan or centrifugal fan. It uses the footing outcome. Vertical axis turbines of this type have been tried for many years: a unit producing 10 kW was built by Israeli wind pioneer Bruce Brill in the 1980s.[44] [ unreliable source? ]

Unconventional types

Vertical Axis Air current Turbine offshore

Blueprint and construction

Components of a horizontal-axis air current turbine

Inside view of a current of air turbine belfry, showing the tendon cables

Wind turbine design is a conscientious residue of cost, free energy output, and fatigue life.

Components

Wind turbines catechumen wind energy to electric energy for distribution. Conventional horizontal axis turbines can be divided into 3 components:

  • The rotor, which is approximately 20% of the wind turbine cost, includes the blades for converting wind free energy to low speed rotational free energy.
  • The generator, which is approximately 34% of the air current turbine cost, includes the electric generator,[45] [46] the control electronics, and most likely a gearbox (due east.g., planetary gear box),[47] adjustable-speed drive, or continuously variable transmission[48] component for converting the depression-speed incoming rotation to high-speed rotation suitable for generating electricity.
  • The surrounding construction, which is approximately 15% of the wind turbine cost, includes the tower and rotor yaw mechanism.[49]

Nacelle of a wind turbine

A 1.5 (MW) wind turbine of a type frequently seen in the United States has a tower 80 meters (260 ft) high. The rotor assembly (blades and hub) weighs 22,000 kilograms (48,000 lb). The nacelle, which contains the generator, weighs 52,000 kilograms (115,000 lb). The concrete base for the tower is synthetic using 26,000 kilograms (58,000 lb) reinforcing steel and contains 190 cubic meters (250 cu yd) of concrete. The base is 15 meters (fifty ft) in bore and 2.four meters (8 ft) thick virtually the centre.[50]

Turbine monitoring and diagnostics

Due to data transmission issues, structural health monitoring of wind turbines is normally performed using several accelerometers and strain gages attached to the nacelle to monitor the gearbox and equipment. Currently, digital image correlation and stereophotogrammetry are used to measure out dynamics of wind turbine blades. These methods ordinarily measure deportation and strain to identify location of defects. Dynamic characteristics of not-rotating wind turbines have been measured using digital paradigm correlation and photogrammetry.[51] Three dimensional betoken tracking has too been used to mensurate rotating dynamics of wind turbines.[52]

Technology

By and large, efficiency increases forth with turbine blade lengths. The blades must be strong, strong, durable, calorie-free and resistant to fatigue.[53] Materials with these backdrop include composites such as polyester and epoxy, while glass fiber and carbon cobweb have been used for the reinforcing.[54] Construction may involve manual layup or injection molding. Retrofitting existing turbines with larger blades reduces the task and risks of redesign.

Development in size and power of wind turbines, 1990–2016

As of 2021, the longest blade was 115.5 m (379 ft),[55] producing 15 MW with a maximum racket level of 118 dB(A). Blades need to part over a 100 million load cycles over a period of twenty–25 years.

Blade materials

Materials commonly used in wind turbine blades are described beneath.

Drinking glass and carbon fibers

The stiffness of composites is determined by the stiffness of fibers and their volume content. Typically, E-glass fibers are used as main reinforcement in the composites. Typically, the drinking glass/epoxy composites for wind turbine blades contain up to 75% drinking glass by weight. This increases the stiffness, tensile and compression strength. A promising composite textile is glass fiber with modified compositions like S-glass, R-drinking glass etc. Other drinking glass fibers developed past Owens Corning are ECRGLAS, Advantex and WindStrand.[56]

Carbon cobweb has more tensile force, college stiffness and lower density than glass fiber. An ideal candidate for these properties is the spar cap, a structural element of a bract which experiences high tensile loading.[54] A 100-metre (330 ft) drinking glass cobweb bract could weigh upward to l tonnes (110,000 lb), while using carbon fiber in the spar saves 20% to 30% weight, nearly 15 tonnes (33,000 lb).[57] However, considering carbon fiber is 10 times more expensive, glass fiber is all the same dominant.

Hybrid reinforcements

Instead of making wind turbine bract reinforcements from pure glass or pure carbon, hybrid designs trade weight for cost. For example, for an 8-metre (26 ft) blade, a full replacement past carbon fiber would save 80% of weight merely increment costs by 150%, while a xxx% replacement would save l% of weight and increase costs by xc%. Hybrid reinforcement materials include Due east-glass/carbon, Due east-drinking glass/aramid. The electric current longest bract by LM Wind Power is fabricated of carbon/glass hybrid composites. More research is needed about the optimal composition of materials [58]

Nano-engineered polymers and composites

Additions of modest amount (0.5 weight %) of nanoreinforcement (carbon nanotubes or nanoclay) in the polymer matrix of composites, fiber sizing or interlaminar layers can improve fatigue resistance, shear or compressive strength, and fracture toughness of the composites by 30% to 80%. Enquiry has too shown that incorporating minor amounts of carbon nanotubes (CNT) can increase the lifetime up to 1500%.

Costs

As of 2019[update], operating a wind turbine may cost around $1 million per megawatt of energy produced.[59]

For the wind turbine blades, while the material toll is much higher for hybrid glass/carbon cobweb blades than all-glass fiber blades, labor costs can be lower. Using carbon fiber allows simpler designs that use less raw fabric. The chief manufacturing process in blade fabrication is the layering of plies. Thinner blades allow reducing the number of layers then the labor, and in some cases, equate to the cost of labor for glass fiber blades.[60]

Non-blade materials

Wind turbine parts other than the rotor blades (including the rotor hub, gearbox, frame, and belfry) are largely made of steel. Smaller turbines (also as megawatt-scale Enercon turbines) accept begun using aluminum alloys for these components to make turbines lighter and more efficient. This trend may grow if fatigue and force backdrop tin be improved. Pre-stressed physical has been increasingly used for the fabric of the tower, but still requires much reinforcing steel to run into the strength requirement of the turbine. Additionally, step-upwards gearboxes are being increasingly replaced with variable speed generators, which requires magnetic materials.[53] In particular, this would require an greater supply of the rare earth metallic neodymium.

Mod turbines utilize a couple of tons of copper for generators, cables and such.[61] As of 2018[update], global production of current of air turbines utilize 450,000 tonnes (990 1000000 pounds) of copper per year.[62]

Material supply

A study of the material consumption trends and requirements for wind energy in Europe found that bigger turbines take a higher consumption of precious metals but lower material input per kW generated. The current material consumption and stock was compared to input materials for various onshore arrangement sizes. In all EU countries the estimates for 2020 doubled the values consumed in 2009. These countries would need to expand their resources to meet the estimated need for 2020. For example, currently the EU has 3% of world supply of fluorspar and it requires 14% past 2020. Globally, the principal exporting countries are Southward Africa, Mexico and Red china. This is similar with other critical and valuable materials required for energy systems such as magnesium, silver and indium. The levels of recycling of these materials are very low and focusing on that could alleviate supply. Considering most of these valuable materials are also used in other emerging technologies, like low-cal emitting diodes (LEDs), photo voltaics (PVs) and liquid crystal displays (LCDs), their demand is expected to abound.[63]

A study by the Us Geological Survey estimated resources required to fulfill the Us delivery to supplying twenty% of its electricity from wind power past 2030. It did not consider requirements for modest turbines or offshore turbines because those were not common in 2008 when the study was washed. Common materials such as bandage iron, steel and concrete would increase past 2%–3% compared to 2008. Betwixt 110,000 and 115,000 metric tons of fiber glass would be required per year, a 14% increase. Rare metal use would non increase much compared to bachelor supply, still rare metals that are too used for other technologies such every bit batteries which are increasing its global need need to be taken into business relationship. Land required would be 50,000 square kilometers onshore and xi,000 offshore. This would not be a problem in the Us due to its vast surface area and because the aforementioned state can be used for farming. A greater claiming would be the variability and transmission to areas of loftier demand.[64]

Permanent magnets for current of air turbine generators comprise rare metals such as neodymium (Nd), praseodymium (Pr), Terbium (Tb) and dysprosium (Dy). Systems that utilize magnetic direct drive turbines crave greater amounts of rare metals. Therefore, an increase in wind turbine manufacture would increase the demand for these resources. By 2035, the demand for Nd is estimated to increase by four,000 to 18,000 tons and for Dy by 200 to 1200 tons. These values are a quarter to half of current production. Withal, these estimates are very uncertain because technologies are developing rapidly.[65]

Reliance on rare earth minerals for components has risked expense and price volatility as China has been main producer of rare earth minerals (96% in 2009) and was reducing its consign quotas.[66] Yet, in recent years other producers have increased production and Communist china has increased export quotas, leading to a higher supply and lower cost, and a greater viability of large scale use of variable-speed generators.[67]

Drinking glass cobweb is the most common material for reinforcement. Its need has grown due to growth in construction, transportation and wind turbines. Its global market might accomplish U.s.$17.4 billion by 2024, compared to US$8.v billion in 2014. In 2014, Asia Pacific produced more 45% of the market; now Prc is the largest producer. The industry receives subsidies from the Chinese government allowing it to export cheaper to the US and Europe. However, price wars have led to anti-dumping measures such as tariffs on Chinese glass cobweb.[68]

Wind turbines on public display

A few localities have exploited the attention-getting nature of current of air turbines by placing them on public brandish, either with visitor centers around their bases, or with viewing areas farther away.[69] The wind turbines are mostly of conventional horizontal-axis, three-bladed design, and generate power to feed electrical grids, but they also serve the anarchistic roles of technology demonstration, public relations, and education.

Modest current of air turbines

Small wind turbines may be used for a variety of applications including on- or off-grid residences, telecom towers, offshore platforms, rural schools and clinics, remote monitoring and other purposes that crave energy where there is no electric grid, or where the filigree is unstable. Small wind turbines may exist equally minor as a fifty-watt generator for boat or caravan use. Hybrid solar and wind powered units are increasingly being used for traffic signage, particularly in rural locations, as they avoid the need to lay long cables from the nearest mains connection point.[70] The U.S. Department of Energy's National Renewable Energy Laboratory (NREL) defines small air current turbines as those smaller than or equal to 100 kilowatts.[71] Small units often accept straight drive generators, direct current output, aeroelastic blades, lifetime bearings and utilize a vane to indicate into the wind.

Larger, more plush turbines generally have geared ability trains, alternating electric current output, and flaps, and are actively pointed into the wind. Direct drive generators and aeroelastic blades for large air current turbines are beingness researched.

Wind turbine spacing

On nearly horizontal air current turbine farms, a spacing of virtually 6–10 times the rotor bore is often upheld. However, for large current of air farms distances of about 15 rotor diameters should exist more economical, taking into account typical wind turbine and land costs. This conclusion has been reached by research[72] conducted past Charles Meneveau of Johns Hopkins University[73] and Johan Meyers of Leuven Academy in Belgium, based on estimator simulations[74] that take into account the detailed interactions among current of air turbines (wakes) equally well as with the entire turbulent atmospheric purlieus layer.

Contempo research by John Dabiri of Caltech suggests that vertical current of air turbines may be placed much more than closely together so long equally an alternate pattern of rotation is created assuasive blades of neighbouring turbines to move in the same management as they approach one some other.[75]

Operability

Workers audit current of air turbine blades

Maintenance

Current of air turbines need regular maintenance to stay reliable and available. In the best case turbines are available to generate energy 98% of the time.[76] [77] Ice accretion on turbine blades has likewise been found to greatly reduce the efficiency of current of air turbines, which is a common challenge in cold climates where in-cloud icing and freezing rain events occur.[78] De-icing is mainly performed by internal heating, or in some cases by gasoline-powered-helicopters spraying clean warm water on the blades,[79]

Modernistic turbines ordinarily have a small onboard crane for hoisting maintenance tools and minor components. Nevertheless, big, heavy components similar generator, gearbox, blades, and then on are rarely replaced, and a heavy lift external crane is needed in those cases. If the turbine has a difficult access route, a containerized crane tin can be lifted upwardly by the internal crane to provide heavier lifting.[80]

Repowering

Installation of new wind turbines tin can exist controversial. An alternative is repowering, where existing air current turbines are replaced with bigger, more than powerful ones, sometimes in smaller numbers while keeping or increasing capacity.

Demolition and recycling

Some wind turbines which are out of use are recycled or repowered.[81] [82] 85% of turbine materials are hands reused or recycled, only the blades, made of a composite fabric, are more hard to process.[83]

Interest in recycling blades varies in unlike markets and depends on the waste matter legislation and local economics. A claiming in recycling blades is related to the composite material, which is made of fiberglass with carbon fibers in epoxy resin, which cannot be remolded to grade new composites. So the options are to send the blade to landfill, to reuse the blade and the composite cloth elements found in the blade, or to transform the blended fabric into a new source of textile.

Wind subcontract waste is less toxic than other garbage. Wind turbine blades represent simply a fraction of overall waste in the US, according to the Wind-industry trade association, American Wind Energy Clan.[84] In the US the town of Casper, Wyoming has buried ane,000 non-recyclable blades in its landfill site, earning $675,000 for the boondocks.

Several utilities, start-upward companies, and researchers are developing methods for reusing or recycling blades.[85] Manufacturer Vestas has developed technology that can separate the fibers from the resin, allowing for reuse.[86] In Germany, air current turbine blades are commercially recycled every bit office of an alternative fuel mix for a cement factory.[85] In the United kingdom, a project will trial cutting blades into strips for apply as rebar in concrete, with the aim of reducing emissions in the construction of Loftier Speed 2.[87] Used wind turbine blades accept been recycled by incorporating them as role of the back up structures inside pedestrian bridges in Poland[88] and Republic of ireland.[89]

Comparing with fossil-fuel turbines

Advantages

Wind turbines produce electricity at between two and half dozen cents per kilowatt 60 minutes, which is one of the lowest-priced renewable energy sources.[xc] [91] As technology needed for current of air turbines connected to improve, the prices decreased as well. In add-on, at that place is currently no competitive market for air current energy, because wind is a freely available natural resource, near of which is untapped.[90] The main cost of minor wind turbines is the buy and installation process, which averages between $48,000 and $65,000 per installation. The energy harvested from the turbine will offset the installation cost, as well as provide virtually complimentary free energy for years.[92]

Wind turbines provide a clean energy source,[93] use little water,[2] emitting no greenhouse gases and no waste products during operation. Over 1,400 tonnes (1,500 brusque tons) of carbon dioxide per year can exist eliminated by using a ane-megawatt turbine instead of one megawatt of energy from a fossil fuel.[94]

Disadvantages

Current of air turbines can be very large, reaching over 140 m (460 ft) tall and with blades 55 m (180 ft) long,[95] and people have often complained about their visual impact.

Ecology impact of wind power includes effect on wildlife, but tin can exist mitigated if proper monitoring and mitigation strategies are implemented.[96] Thousands of birds, including rare species, accept been killed by the blades of wind turbines,[97] though current of air turbines contribute relatively insignificantly to anthropogenic avian bloodshed. Wind farms and nuclear power plants are responsible for between 0.3 and 0.four bird deaths per gigawatt-60 minutes (GWh) of electricity while fossil fueled power stations are responsible for near 5.two fatalities per GWh. In 2009, for every bird killed by a air current turbine in the Us, nearly 500,000 were killed by cats and another 500,000 by buildings.[98] In comparison, conventional coal fired generators contribute significantly more than to bird mortality, by incineration when caught in updrafts of smoke stacks and by poisoning with emissions byproducts (including particulates and heavy metals downwind of flue gases). Further, marine life is affected by h2o intakes of steam turbine cooling towers (heat exchangers) for nuclear and fossil fuel generators, by coal dust deposits in marine ecosystems (eastward.yard. damaging Australia's Great Bulwark Reef) and by water acidification from combustion monoxides.

Energy harnessed past wind turbines is intermittent, and is non a "dispatchable" source of power; its availability is based on whether the wind is blowing, non whether electricity is needed. Turbines can be placed on ridges or bluffs to maximize the access of wind they have, merely this also limits the locations where they tin can exist placed.[ninety] In this fashion, air current energy is not a particularly reliable source of free energy. However, information technology tin can form function of the energy mix, which also includes ability from other sources. Notably, the relative available output from air current and solar sources is often inversely proportional (balancing)[ citation needed ]. Technology is also being developed to store backlog energy, which tin can and so make up for any deficits in supplies.

Records

Fuhrländer Wind Turbine Laasow, in Brandenburg, Germany, amongst the world's tallest wind turbines

Encounter too List of most powerful current of air turbines

Nigh powerful, tallest, largest and with highest 24-hour production
GE Wind Energy's Haliade-Ten is the most powerful wind turbine in the world, at 12MW. It also is the tallest, with a hub height of 150 m and a tip height of 260m. Information technology as well has the largest rotor of 220 thou and largest swept area at 38000 m2 [99] It also holds the record for the highest production in 24 hours, at 312 MWh.[100]
Largest capacity conventional (non-direct) drive
The Vestas V164 has a rated capacity of 8 MW,[101] later upgraded to 9.5 MW.[102] [103] The current of air turbine has an overall superlative of 220 m (722 ft), a bore of 164 m (538 ft), is for offshore utilise, and is the globe's largest-capacity wind turbine since its introduction in 2014. Conventional drive trains consist of a principal gearbox and a medium-speed PM generator. Prototype installed in 2014 at the National Test Center Denmark nearby Østerild. Series production began end of 2015.
Largest vertical-axis
Le Nordais wind farm in Cap-Conversation, Quebec, has a vertical axis current of air turbine (VAWT) named Éole, which is the world's largest at 110 k.[104] It has a nameplate capacity of 3.8 MW.[105]
Largest 1-bladed turbine
The largest single-bladed air current turbine pattern to be put into consummate operation is the MBB Messerschmitt Monopteros M50, with a total power output of no less than 640 kW at full chapters. As far equally the number of units is concerned, only three ever have been installed at an actual current of air park, of which all went to the Jade Air current Park.[106]
Largest 2-bladed turbine
The biggest ii-bladed turbine is built by Mingyang Wind Power in 2013. It is a SCD6.5MW offshore downwind turbine, designed by aerodyn Energiesysteme GmbH.[107] [108] [109]
Highest belfry
Fuhrländer installed a ii.5 MW turbine on a 160m lattice belfry in 2003 (see Fuhrländer Wind Turbine Laasow and Nowy Tomyśl Wind Turbines).
Most rotors
Lagerwey has built Iv-in-1, a multi rotor wind turbine with one tower and four rotors about Maasvlakte.[ citation needed ] In April 2016, Vestas installed a 900 kW four rotor exam wind turbine at Risø, made from 4 recycled 225 kW V29 turbines.[110] [111] [112]
Nigh productive
Four turbines at Rønland Offshore Current of air Farm in Denmark share the record for the most productive wind turbines, with each having generated 63.2 GWh by June 2010.[113]
Highest-situated
Since 2013 the globe'due south highest-situated wind turbine was made and installed by WindAid and is located at the base of the Pastoruri Glacier in Peru at 4,877 meters (16,001 ft) above sea level.[114] The site uses the WindAid 2.5 kW wind generator to supply ability to a small rural community of micro entrepreneurs who cater to the tourists who come to the Pastoruri glacier.[115]
Largest floating wind turbine
The globe's largest floating wind turbine is any of the five 6 MW turbines in the xxx MW Hywind Scotland offshore wind farm.[116]

Meet also

  • Airborne air current turbine
  • Compact wind dispatch turbine
  • Éolienne Bollée
  • Floating wind turbine
  • IEC 61400
  • Renewable free energy
  • Tidal stream generator
  • Unconventional wind turbines
  • Wind lens
  • Windbelt
  • Windpump

References

  1. ^ "World wind chapters at 650,8 GW, Corona crunch will wearisome down markets in 2020, renewables to exist core of economic stimulus programmes" (Press release). WWEA. 16 April 2020. Retrieved one September 2021. Wind power capacity worldwide reaches 650,viii GW, 59,7 GW added in 2019 {{cite press release}}: CS1 maint: url-condition (link)
  2. ^ a b Evans, Annette; Strezov, Vladimir; Evans, Tim (June 2009). "Assessment of sustainability indicators for renewable energy technologies". Renewable and Sustainable Energy Reviews. 13 (v): 1082–1088. doi:ten.1016/j.rser.2008.03.008.
  3. ^ Drachmann, A.G. (1961). "Heron's Windmill". Centaurus. seven: 145–151.
  4. ^ Lohrmann, Dietrich (1995). "Von der östlichen zur westlichen Windmühle". Archiv für Kulturgeschichte (in German). Bohlau Verlag. 77 (i): i–32. doi:10.7788/akg.1995.77.1.1. ISSN 0003-9233. S2CID 130600717.
  5. ^ Ahmad Y. al-Hassan; Donald R. Loma (1992). Islamic Technology: An Illustrated History. Cambridge University Press. p. 54. ISBN978-0-521-42239-0.
  6. ^ Donald Routledge Hill, "Mechanical Engineering in the Medieval Nearly East", Scientific American, May 1991, pp. 64–69. (cf. Donald Routledge Hill, Mechanical Engineering)
  7. ^ a b Morthorst, Poul Erik; Redlinger, Robert Y.; Andersen, Per (2002). Wind free energy in the 21st century: economics, policy, applied science and the changing electricity industry. Houndmills, Basingstoke, Hampshire: Palgrave/UNEP. ISBN978-0-333-79248-3.
  8. ^ a b c d Price, Trevor J. (2004). "Blyth, James (1839–1906)". Oxford Dictionary of National Biography (online ed.). Oxford Academy Press. doi:10.1093/ref:odnb/100957. (Subscription or UK public library membership required.)
  9. ^ A Wind Energy Pioneer: Charles F. Castor. Danish Current of air Manufacture Association. Archived from the original on 8 September 2008. Retrieved 28 December 2008.
  10. ^ "Quirky one-time-way contraptions make water from wind on the mesas of Due west Texas". Archived from the original on three February 2008.
  11. ^ Alan Wyatt (1986). Electric Power: Challenges and Choices . Book Press. ISBN978-0-920650-01-1.
  12. ^ "Bauer, Lucas. "Krasnovsky WIME D-thirty – 100,00 kW – Wind turbine"". en.wind-turbine-models.com. [ permanent dead link ]
  13. ^ Anon. "Costa Caput Experimental Wind Turbine". Orkney Sustainable Energy Website. Orkney Sustainable Energy Ltd. Retrieved 19 December 2010.
  14. ^ Overland, Indra (ane March 2019). "The geopolitics of renewable energy: Debunking four emerging myths". Energy Research & Social Science. 49: 36–40. doi:10.1016/j.erss.2018.10.018. ISSN 2214-6296. [ verification needed ]
  15. ^ "NREL: Dynamic Maps, GIS Information, and Analysis Tools – Wind Maps". Nrel.gov. iii September 2013. Retrieved 6 November 2013.
  16. ^ Appendix II IEC Nomenclature of Wind Turbines. Wind Resources Assessment and Micro-siting, Science and Engineering. 2015. pp. 269–270. doi:ten.1002/9781118900116.app2. ISBN9781118900116.
  17. ^ "The Physics of Wind Turbines Kira Grogg Carleton College, 2005, p. eight" (PDF) . Retrieved half dozen November 2013.
  18. ^ "Wind Free energy Nuts". Bureau of Land Management. Archived from the original on ix May 2019. Retrieved 23 April 2016.
  19. ^ "Enercon East-family, 330 Kw to 7.5 MW, Wind Turbine Specification" (PDF). Archived from the original (PDF) on xvi May 2011.
  20. ^ Tony Burton; David Sharpe; Nick Jenkins; Ervin Bossanyi (12 December 2001). Wind Energy Handbook. John Wiley & Sons. p. 65. ISBN978-0-471-48997-9.
  21. ^ Sanne Wittrup (1 November 2013). "xi års vinddata afslørede overraskende produktionsnedgang" [11 years of wind data shows surprising product subtract]. Ingeniøren (in Danish). Archived from the original on 25 October 2018.
  22. ^ Han, Xingxing; Liu, Deyou; Xu, Chang; Shen, Wen Zhong (2018). "Atmospheric stability and topography furnishings on wind turbine performance and wake backdrop in complex terrain". Renewable Free energy. Elsevier BV. 126: 640–651. doi:10.1016/j.renene.2018.03.048. ISSN 0960-1481. S2CID 115433440.
  23. ^ Ozdamar, G. (2018). "Numerical Comparison of the Event of Blade Textile on Current of air Turbine Efficiency". Acta Physica Polonica A. 134 (1): 156–158. Bibcode:2018AcPPA.134..156O. doi:10.12693/APhysPolA.134.156.
  24. ^ Garisto, Dan (30 July 2021). "Windbreaks May Improve Current of air Farm Power". Physics. Vol. 14. p. 112.
  25. ^ "Wind Free energy Basics". American Wind Energy Association. Archived from the original on 23 September 2010. Retrieved 24 September 2009.
  26. ^ Elizabeth Stinson (15 May 2015). "The Time to come of Wind Turbines? No Blades". Wired.
  27. ^ a b Paul Gipe (vii May 2014). "News & Articles on Household-Size (Pocket-sized) Air current Turbines". Current of air-works.org.
  28. ^ "Wind Turbine Components". Danish Wind Manufacture Clan. 10 May 2003. Archived from the original on 7 June 2008.
  29. ^ One thousand. Bywaters; P. Mattila; D. Costin; J. Stowell; 5. John; S. Hoskins; J. Lynch; T. Cole; A. Cate; C. Annoy; B. Freeman (October 2007). "Northern Power NW 1500 Direct-Drive Generator" (PDF). National Renewable Free energy Laboratory. p. iii.
  30. ^ "T 3.2 - Magnetic Pseudo direct drive generator -". innwind.eu.
  31. ^ "Innwind: Overview of the projection and inquiry" (PDF).
  32. ^ "MHI Vestas Launches World's First* 10 Megawatt Wind Turbine". CleanTechnica. 26 September 2018.
  33. ^ "World's biggest current of air turbine shows the disproportionate power of scale". 22 August 2021.
  34. ^ Michael Barnard (7 April 2014). "Vertical Axis Wind Turbines: Great In 1890, Also-rans In 2014". CleanTechnica.
  35. ^ E. Hau., Wind Turbines: Fundamentals, Technologies, Application, Economics. Springer. Germany. 2006
  36. ^ Michael C Brower; Nicholas K Robinson; Erik Hale (May 2010). "Wind Menstruum Modeling Doubtfulness" (PDF). AWS Truepower. Archived from the original on 2 May 2013. {{cite web}}: CS1 maint: unfit URL (link)
  37. ^ Hugh Piggott (six Jan 2007). "Windspeed in the metropolis – reality versus the DTI database". Scoraigwind.com. Retrieved 6 Nov 2013.
  38. ^ "Urban Wind Turbines" (PDF).
  39. ^ "Vertical-Axis Wind Turbines". Symscape. 7 July 2008. Retrieved vi November 2013.
  40. ^ Exploit Nature-Renewable Energy Technologies by Gurmit Singh, Aditya Books, pp 378
  41. ^ Eric Eggleston & AWEA Staff. "What Are Vertical-Axis Wind Turbines (VAWTs)?". American Wind Energy Clan. Archived from the original on three April 2005.
  42. ^ Marloff, R.H. (Jan 1978). "Stresses in turbine-blade tenons subjected to bending". Experimental Mechanics. xviii (i): 19–24. doi:x.1007/BF02326553. S2CID 135685029.
  43. ^ Rob Varnon (two December 2010). "Derecktor converting boat into hybrid passenger ferry". Connecticut Post . Retrieved 25 Apr 2012.
  44. ^ "Modular wind energy device – Brill, Bruce I". Freepatentsonline.com. 19 November 2002. Retrieved 6 Nov 2013.
  45. ^ Navid Goudarzi (June 2013). "A Review on the Development of the Wind Turbine Generators across the World". International Journal of Dynamics and Control. 1 (2): 192–202. doi:10.1007/s40435-013-0016-y.
  46. ^ Navid Goudarzi; Weidong Zhu (November 2012). "A Review of the Development of Current of air Turbine Generators Across the Globe". ASME 2012 International Mechanical Engineering science Congress and Exposition. four – Paper No: IMECE2012-88615: 1257–1265.
  47. ^ "Hansen W4 series". Hansentransmissions.com. Archived from the original on 15 March 2012. Retrieved six November 2013.
  48. ^ John Gardner; Nathaniel Haro & Todd Haynes (October 2011). "Active Drivetrain Control to Improve Energy Capture of Wind Turbines" (PDF). Boise State University. Retrieved 28 Feb 2012.
  49. ^ ""Wind Turbine Design Cost and Scaling Model", Technical Report NREL/TP-500-40566, December, 2006, page 35, 36" (PDF) . Retrieved 6 November 2013.
  50. ^ "Pomeroy Wind Farm" (PDF). Archived from the original (PDF) on xv July 2011.
  51. ^ Baqersad, Javad; Niezrecki, Christopher; Avitabile, Peter (2015). "Full-field dynamic strain prediction on a wind turbine using displacements of optical targets measured by stereophotogrammetry". Mechanical Systems and Signal Processing. 62–63: 284–295. Bibcode:2015MSSP...62..284B. doi:x.1016/j.ymssp.2015.03.021.
  52. ^ Lundstrom, Troy; Baqersad, Javad; Niezrecki, Christopher; Avitabile, Peter (4 Nov 2012). "Using High-Speed Stereophotogrammetry Techniques to Extract Shape Information from Wind Turbine/Rotor Operating Data". In Allemang, R.; De Clerck, J.; Niezrecki, C.; Blough, J.R. (eds.). Topics in Modal Analysis 2, Volume 6. Conference Proceedings of the Society for Experimental Mechanics Series. Springer New York. pp. 269–275. doi:10.1007/978-1-4614-2419-2_26. ISBN978-i-4614-2418-5.
  53. ^ a b Ancona, Dan; Jim, McVeigh (2001). "Wind Turbine – Materials and Manufacturing Fact Sheet". CiteSeerX10.1.1.464.5842.
  54. ^ a b Watson, James; Serrano, Juan (September 2010). "Composite Materials for Wind Blades". Wind Systems. Archived from the original on 11 Nov 2017. Retrieved 6 Nov 2016.
  55. ^ "Vestas V236-15.0 MW". Vestas. Retrieved 1 September 2021. {{cite web}}: CS1 maint: url-status (link)
  56. ^ "Materials and Innovations for Large Blade Structures: Research Opportunities in Current of air Energy Technology" (PDF). windpower.sandia.gov.
  57. ^ "Wind turbine blades: Drinking glass vs. carbon fiber". world wide web.compositesworld.com . Retrieved 12 November 2016.
  58. ^ "Wind Power Monthly Webpage".
  59. ^ "IntelStor expects wind turbine prices to recover 5% in next two years". Windpower Engineering & Evolution. 22 October 2019.
  60. ^ Ong, Cheng-Huat & Tsai, Stephen W. (2000). "The Utilise of Carbon Fibers in Current of air Turbine Blade Design" (PDF). energy.sandia.gov.
  61. ^ Frost and Sullivan, 2009, cited in Wind Generator Technology, by Eclareon South.L., Madrid, May 2012; www.eclareon.com; Available at Leonardo Energy – Enquire an Skilful; "Archived copy". Archived from the original on 26 Nov 2012. Retrieved 12 December 2012. {{cite spider web}}: CS1 maint: archived copy as title (link)
  62. ^ "Fast stride of growth in wind energy driving demand for copper". Riviera Maritime Media.
  63. ^ Kim, Junbeum; Guillaume, Bertrand; Chung, Jinwook; Hwang, Yongwoo (1 February 2015). "Critical and precious materials consumption and requirement in current of air energy system in the Eu 27". Applied Energy. 139: 327–334. doi:10.1016/j.apenergy.2014.11.003. ISSN 0306-2619.
  64. ^ Wilburn, D.R.—Wind Energy in the United states and Materials Required for the Country-Based Turbine Industry From 2010 Through 2030—SIR 2011–5036
  65. ^ Buchholz, Peter; Brandenburg, Torsten (ane January 2018). "Demand, Supply, and Toll Trends for Mineral Raw Materials Relevant to the Renewable Energy Transition Wind Free energy, Solar Photovoltaic Energy, and Energy Storage". Chemie Ingenieur Technik. 90 (1–2): 141–153. doi:10.1002/cite.201700098. ISSN 1522-2640.
  66. ^ Wilburn, David. "Wind Energy in the United States and Materials Required for the Land-Based Wind Turbine Manufacture From 2010 Through 2030" (PDF). U.S. Department of the Interior.
  67. ^ Yap, Chui-Wei. "Communist china Ends Rare-Earth Minerals Export Quotas". wsg.com.
  68. ^ "Drinking glass cobweb market to reach to US$17 billion past 2024". Reinforced Plastics. 60 (four): 188–189. 1 July 2016. doi:x.1016/j.repl.2016.07.006. ISSN 0034-3617.
  69. ^ Immature, Kathryn (3 August 2007). "Canada air current farms accident away turbine tourists". Edmonton Journal. Archived from the original on 25 April 2009. Retrieved six September 2008.
  70. ^ Anon. "Solar & Wind Powered Sign Lighting". Free energy Development Cooperative Ltd. Retrieved 19 Oct 2013.
  71. ^ Small Wind Archived xv November 2011 at the Wayback Machine, U.Southward. Section of Energy National Renewable Energy Laboratory website
  72. ^ Meyers, Johan (2011). "Optimal turbine spacing in fully adult wind farm boundary layers". Wind Energy. 15 (ii): 305–317. Bibcode:2012WiEn...15..305M. doi:ten.1002/we.469.
  73. ^ "New written report yields better turbine spacing for large wind farms". Johns Hopkins Academy. 18 January 2011. Retrieved 6 Nov 2013.
  74. ^ M. Calaf; C. Meneveau; J. Meyers (2010). "Large eddy simulation written report of fully developed wind-turbine assortment boundary layers". Phys. Fluids. 22 (ane): 015110–015110–16. Bibcode:2010PhFl...22a5110C. doi:10.1063/1.3291077.
  75. ^ Dabiri, John O. (1 July 2011). "Potential gild-of-magnitude enhancement of current of air farm power density via counter-rotating vertical-axis wind turbine arrays". Journal of Renewable and Sustainable Energy. three (four): 043104. arXiv:1010.3656. doi:x.1063/1.3608170. S2CID 10516774.
  76. ^ G.J.West. van Bussel, PhD; Grand.B. Zaaijer, MSc (2001). "Reliability, Availability and Maintenance aspects of large-scale offshore wind farms" (PDF). Delft University of Applied science: 2.
  77. ^ "Iberwind builds on 98% availability with fresh yaw, blade gains". xv February 2016. Retrieved 30 May 2016.
  78. ^ Barber, S.; Wang, Y.; Jafari, S.; Chokani, N.; Abhari, R. S. (28 January 2011). "The Impact of Ice Germination on Air current Turbine Performance and Aerodynamics". Journal of Solar Energy Engineering science. 133 (ane): 011007–011007–9. doi:10.1115/1.4003187. ISSN 0199-6231.
  79. ^ Nilsen, Jannicke (i February 2015). "Her spyler helikopteret bort et tykt lag med is". Tu.no (in Norwegian). Teknisk Ukeblad. Archived from the original on twenty Jan 2021. These piece of work .. by blowing hot air into the rotor blades so that the water ice melts, or by using heating cables on the front edge of the rotor blades where the ice sticks. No chemicals are added to the water, in contrast to aircraft de-icing, which often involves extensive use of chemicals. The price tag for de-icing a wind turbine is equivalent to the value of ii days' turbine production.
  80. ^ Morten Lund (thirty May 2016). "Dansk firma sætter prisbelønnet selvhejsende kran i serieproduktion". Ingeniøren. Archived from the original on 31 May 2016. Retrieved 30 May 2016.
  81. ^ Jeremy Fugleberg (eight May 2014). "Abandoned Dreams of Wind and Lite". Atlas Obscura . Retrieved 30 May 2016.
  82. ^ Tom Gray (xi March 2013). "Fact check: Most those 'abandoned' turbines …". American Wind Energy Association. Retrieved thirty May 2016.
  83. ^ "Air current Turbine Blades Don't Have To Stop Upwards In Landfills". The Equation. thirty October 2020. Retrieved 23 January 2022.
  84. ^ "Turbines Tossed Into Dump Stirs Debate on Air current'southward Dirty Downside". Bloomberg. 31 July 2019. Retrieved 6 Dec 2019.
  85. ^ a b "Wind Turbine Blades Don't Have To End Upwardly In Landfills". The Equation. 30 October 2020. Retrieved 23 January 2022.
  86. ^ Barsoe, Tim (17 May 2021). "Stop of air current power waste? Vestas unveils blade recycling technology". Reuters . Retrieved 23 Jan 2022.
  87. ^ "New HS2 pilot projection swaps steel for retired wind turbine blades to reinforce concrete". Loftier Speed 2 . Retrieved 12 March 2021. {{cite web}}: CS1 maint: url-status (link)
  88. ^ Mason, Hannah (21 October 2021). "Anmet installs first recycled air current turbine bract-based pedestrian bridge". CompositesWorld.
  89. ^ Stone, Maddie (11 February 2022). "Engineers are building bridges with recycled wind turbine blades". The Verge.
  90. ^ a b c "Advantages and Disadvantages of Current of air Energy – Clean Energy Ideas". Clean Energy Ideas. 19 June 2013. Retrieved 10 May 2017.
  91. ^ "Levelized Cost of Energy and Levelized Cost of Storage 2018". eight November 2018. Retrieved 11 November 2018.
  92. ^ "Residential Wind Free energy Systems – Bergey Wind Power". bergey.com . Retrieved x May 2017. [ non-principal source needed ]
  93. ^ Rueter, Gero (27 Dec 2021). "How sustainable is wind power?". Deutsche Welle . Retrieved 28 December 2021. An onshore wind turbine that is newly built today produces effectually nine grams of CO2 for every kilowatt hour (kWh) it generates ... a new offshore found in the ocean emits vii grams of CO2 per kWh ... solar ability plants emit 33 grams CO2 for every kWh generated ... natural gas produces 442 grams CO2 per kWh, ability from hard coal 864 grams, and power from lignite, or dark-brown coal, 1034 grams ... nuclear energy accounts for near 117 grams of CO2 per kWh, considering the emissions caused by uranium mining and the construction and operation of nuclear reactors.
  94. ^ "About Air current Energy: Factsheets and Statistics". www.pawindenergynow.org . Retrieved 10 May 2017.
  95. ^ "Turbine Size". Fraunhofer Wind Monitor.
  96. ^ Parisé, J.; Walker, T. R. (2017). "Industrial wind turbine postal service-construction bird and bat monitoring: A policy framework for Canada". Journal of Environmental Management. 201: 252–259. doi:x.1016/j.jenvman.2017.06.052. PMID 28672197.
  97. ^ Hosansky, David (1 Apr 2011). "Wind Ability: Is wind energy good for the environment?". CQ Researcher.
  98. ^ Sovacool, B. K. (2013). "The avian benefits of current of air free energy: A 2009 update". Renewable Energy. 49: 19–24. doi:x.1016/j.renene.2012.01.074.
  99. ^ "Globe'southward Most Powerful Offshore Wind Turbine: Haliade-X 12 MW GE Renewable Energy". Retrieved fifteen April 2020.
  100. ^ "Tape-breaking Haliade-X 12 MW obtains full blazon document". Riviera.
  101. ^ Wittrup, Sanne. "Power from Vestas' giant turbine" (in Danish. English translation ). Ingeniøren, 28 Jan 2014. Retrieved 28 January 2014.
  102. ^ "The world'south most powerful bachelor current of air turbine gets major power boost | MHI Vestas Offshore". world wide web.mhivestasoffshore.com. 2018. Retrieved 22 September 2018.
  103. ^ "MHI Vestas launches 9.5MW V164 turbine in London". world wide web.mhivestasoffshore.com . Retrieved 22 September 2018.
  104. ^ "Visits : Big wind turbine". Archived from the original on 1 May 2010. Retrieved 17 Apr 2010.
  105. ^ "Wind Free energy Power Plants in Canada – other provinces". 5 June 2010. Retrieved 24 August 2010.
  106. ^ "MBB Messerschmitt Monopteros M50 - 640,00 kW - Air current turbine". en.current of air-turbine-models.com.
  107. ^ Vries, Eize de. "Shut up - Aerodyn's 6MW offshore turbine pattern". world wide web.windpoweroffshore.com.
  108. ^ "Ming Yang completes 6.5MW offshore turbine". world wide web.windpowermonthly.com.
  109. ^ Weston, David (12 March 2015). "EWEA Offshore: Aerodyn 6MW connected to grid". Windpower Monthly. Archived from the original on 14 March 2015. Retrieved 4 November 2019.
  110. ^ "EXCLUSIVE: Vestas tests four-rotor concept turbine". Windpower Monthly. Archived from the original on 6 December 2020. Retrieved xx April 2016.
  111. ^ Sanne Wittrup (xx April 2016). "Vestas rejser usædvanlig ny multirotor-vindmølle". Ingeniøren. Archived from the original on 3 December 2020. Retrieved 20 Apr 2016.
  112. ^ Video of quadrotor on YouTube
  113. ^ "Surpassing Matilda: record-breaking Danish wind turbines". Archived from the original on 22 March 2011. Retrieved 26 July 2010.
  114. ^ "Highest altitude air current generator". Guinness World Records.
  115. ^ Satullo, Sara (4 August 2013). "Northampton Community College students help set Guinness Earth Record in Republic of peru". lehighvalleylive.
  116. ^ "Floating air current subcontract to exist UK first". BBC News. two November 2015.

Farther reading

  • Tony Burton, David Sharpe, Nick Jenkins, Ervin Bossanyi: Wind Energy Handbook, John Wiley & Sons, 2nd edition (2011), ISBN 978-0-470-69975-i
  • Darrell, Dodge, Early History Through 1875 Archived 2 December 2010 at the Wayback Machine, TeloNet Web Evolution, Copyright 1996–2001
  • Ersen Erdem, Wind Turbine Industrial Applications
  • Robert Gasch, Jochen Twele (ed.), Wind power plants. Fundamentals, design, construction and performance, Springer 2012 ISBN 978-three-642-22937-iv.
  • Erich Hau, Wind turbines: fundamentals, technologies, awarding, economics Springer, 2013 ISBN 978-iii-642-27150-2 (preview on Google Books)
  • Siegfried Heier, Grid integration of wind energy conversion systems John Wiley & Sons, 3rd edition (2014), ISBN 978-1-119-96294-6
  • Peter Jamieson, Innovation in Wind Turbine Design. Wiley & Sons 2011, ISBN 978-0-470-69981-2
  • J. F. Manwell, J. G. McGowan, A. L. Roberts, Wind Energy Explained: Theory, Design and Application, John Wiley & Sons, 2d edition (2012), ISBN 978-0-47001-500-1
  • David Spera (ed,) Current of air Turbine Engineering: Fundamental Concepts in Current of air Turbine Engineering, Second Edition (2009), ASME Press, ISBN 9780791802601
  • Alois Schaffarczyk (ed.), Understanding wind power technology, John Wiley & Sons, (2014), ISBN 978-ane-118-64751-6
  • Hermann-Josef Wagner, Jyotirmay Mathur, Introduction to air current energy systems. Nuts, technology and operation. Springer (2013), ISBN 978-three-642-32975-3
  • GA Mansoori, N Enayati, LB Agyarko (2016), Energy: Sources, Utilization, Legislation, Sustainability, Illinois as Model State

External links

  • Harvesting the Wind (45 lectures about wind turbines by professor Magdi Ragheb
  • Wind Energy Technology World Air current Energy Association
  • Tiptop 21 Biggest Air current Turbines in the World
  • Lavars, Nick (21 March 2022). "GE produces world'south largest recyclable wind turbine blade". New Atlas . Retrieved 23 March 2022.

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