Invented a city wind generator closed type, which will be safe for both people and animals.

As is known, modern “propeller” windmills are unsafe, both for people and for birds and bats, in addition to these. In order not to repeat the mistakes of global manufacturers, Russian scientists have developed a closed-type windmill that resembles the shape of an airplane turbine.


The design consists of 32 blades instead of 2 or 3 blades, which significantly increases the efficiency of the wind turbine and reduces its cost. In addition, the casing in which the blades are enclosed ensures safety for others in the event of blade destruction. And the high rotation speed allows you to avoid harmful infrasonic vibrations.


Such a wind generator has a record low cost of generating electricity. It can be installed in a residential area, incl. on the roofs of city buildings. It does almost everything necessary requirements: convenience, low installation cost and low power consumption.

According to the developers, their wind generator is suitable for any climatic conditions and starts working at wind gusts of 1.8 m/s and operates smoothly up to 25 m/s.

“This is the only generator model that can be installed where a person lives or works. It is unique in its safety characteristics and at the same time it is also productive,” says Vladimir Kanin, one of the developers of a new type of wind generator.

Installers of cellular equipment, kits for mobile drilling rigs and geological parties, as well as administrations of the northern energy-deficient regions of Russia, became interested in the unique design of St. Petersburg residents.

Similar projects exist in the USA, Japan, China and Germany. But as the company Optiflame Solutions assures, apparently, they are the only ones who purposefully build “urban” wind turbines that are safe for the residential environment. In December 2010, they became one of the first participants in the Skolkovo innovation center. This year, the Optiflame Solutions team entered the top ten finalists of the country's largest startup competition, GenerationS, in the CleanTech track.

According to Kanin, there are now about 300 in the world different projects wind generators, in reality there are no more than 10 prototypes that can be touched. Everything else is just sketches.

Against this background, their indoor wind turbine looks very promising. And we can only wish good luck to the Russian developers.

A wind turbine is the main part of a wind generator, which has a turbine as a device that serves as a receiver of wind energy. One of the options for such devices is a cylinder-shaped housing, internal space which the blades are located.

Wind installations made on the basis of wind turbines are characterized by higher efficiency compared to bladed ones, as well as simplicity of design and reliability in operation.

Main characteristics

As with any technical device, so with an air turbine, the parameters that classify its capabilities, as well as providing information about a particular model, are its technical characteristics.

The main technical characteristics for such devices are:

1. Rated output power, measured in kW.
2. The rated rectified voltage that the generator produces at a certain rotor speed of the installation.
3. The frequency of the generated voltage, measured in Hz.
4. The rotor rotation frequency, in operating mode, at which the rated rectified voltage is created. Measured in revolutions per minute.
5. The rated speed at which a wind turbine meets its declared power. Measured in revolutions per minute.
6. Stealth speed is measured in revolutions per minute and classifies the maximum ability of the unit to operate at a certain speed.
7. An operating mode in which a particular device model is capable of operating for a specified time (long-term, cyclic, short-term, etc.).
8. The level of noise (sound) produced during operation of a particular model is measured in dB.
9. Device efficiency.
10. Type of cooling of components and mechanisms.
11. Method of installation and assembly.
12. Dimensions.
13. Unit weight.

Design features of a wind turbine

Wind generators equipped with a wind turbine are a cylinder with blades inside. The presence of an external contour around the blades provides them with protection from foreign objects and living organisms getting into them.

The absence of the need for a tail section (for orientation relative to the wind direction) reduces the weight and dimensions of the device, and also facilitates installation and operation. The body, in the form of a cylinder, is independently oriented in the direction of wind flows, and, essentially working as a nozzle, increases the pressure on the installed blades, thereby increasing the efficiency of the wind generator.

How to calculate correctly

The main indicator that determines the choice of a particular model is the ability to generate electrical energy, which is measured in kilowatt hours per unit time.

The amount of energy generated is directly related to the power of the installation, which is the main technical characteristics unit, therefore, the calculation of a wind turbine determines its geometric dimensions, the number of installed blades and the installation height above the ground.

The power of the electrical generator, which determines the ability of the wind turbine to generate electricity, depends on the wind flow, the power of which, in accordance with the efficiency of the turbine, can be calculated using the formula:

P=KxRxV 3 xS/2

P – air flow power;

K – coefficient taking into account the efficiency of the turbine, has a value from 0.2 to 0.5 units;

R – air density, is 1.225 kg/m3 (at normal atmospheric pressure);

V is the speed of air flow, measured in m/s;

S – coverage area of ​​the wind turbine (wind flow operating with the installation).

From the above formula it is clear that the power of the wind flow, and, consequently, the power of the generator, directly depends on the diameter of the wind turbine (S= π R 2).

Knowing the speed air flow at the installation location of the installation and its diameter, you can determine the power of the installation and its ability to generate electrical energy.

Types of wind turbines

Although it was initially believed that a wind installation with a wind turbine involves its installation only in horizontal plane, which characterizes wind generators with a horizontal axis of rotation, however, designers have developed new versions of such devices, which are:

• Vertical axis wind turbine

In installations of this type, the turbine cylinder is located vertically, and the blades are in a plane perpendicular to the surface of the earth.

The operation of wind turbines with a vertical axis of rotation is similar to the operation of devices with a horizontal axis of rotation.

• Wind turbine without blades

Presence of blades on wind turbines various designs, leads to the fact that their installation requires significant areas, even if these are wind turbines located in a rigid housing. In this regard, a new direction in the development of wind turbines has been the construction of similar devices using wind turbines that do not have blades.

This design consists of a pillar with metal disks inside. The discs are mounted on the shaft and located parallel to each other, with special gaskets installed between them. When air hits the gaskets, they begin to move and give a certain and directed impulse to the metal disks, under the influence of which the disks begin to rotate. Under the influence of the rotational movement of the disks, the rod begins to rotate, which in turn transmits its rotational motion to the generator shaft.

• Wind turbine for roof

Interest in the ability to provide oneself with free electrical energy, without creating problems for others, even in a city, led to the development of a wind turbine design that can be installed on the roof of any building.

Such an installation has small overall dimensions, light weight, and is practically silent during operation. The outer body of the device is made in the form of a snail, which allows you to increase the wind flow in the desired direction and orient yourself in space in accordance with its direction.

Popular models and brands

Among the variety of wind turbines produced in different technical developed countries, the most popular are the following:

• Turbine developed by company specialists Fiddler(USA), intended individual use and involves installation on the roof of a residential building or other structure for individual use.

This model is equipped electronic unit, with the help of which, using special mobile applications, it is possible to monitor the operation of the device from a remote distance.

The wind turbine is paired with a battery installed inside the building . Fastening elements require installation on the roof ridge, which increases the amount of wind flow captured by the turbine. The noise level during operation of the device is kept to a minimum, which makes it possible not to create discomfort for residents living inside the building on which the unit is mounted.

• • The Liam F1 model turbine was developed in Holland by The Archimedes, is lightweight (up to 80.0 kg) and is intended to be installed on the roof of a building or other free-standing support. The design of the receiving unit, in the form of a snail, allows you to increase the efficiency of the wind turbine and always be in the plane of movement of wind flows.
  • 
    
  • The noise level during operation is very low, which allows installation in any convenient place.

  • Average prices

    Equipment used in alternative energy, including wind turbines, is not cheap. This is due to the fact that, as a rule, new models are produced in a piece version, and what has already been supplied is not a stream, is not sold en masse, which is due to the fact that this method energy generation has not yet found widespread use among users.

    The cost of the above installations is:

    • The “Liam F1” model is sold in the European Union and America, its cost is from 4000.0 euros.
    • There is no data on the cost of the model from the American company Fiddler, but due to its configuration and the supply of similar devices on the market, we can confidently say that the installation price is no lower than that of Dutch developers.

    Advantages and disadvantages

    The simplicity and reliability of wind generators made using a wind turbine are not the only advantages of these units. In addition, the advantages of using wind turbines include:

    • Ability to work in low wind flows, with a speed of 2.0 m/s.
    • High sensitivity to wind currents.
    • Ability to work at strong, hurricane speeds of air flows, up to 60.0 m/s.
    • With the same overall dimensions, a wind generator equipped with a turbine, has more power and higher efficiency compared to bladed units.
    • Turbine is safe technical device for the animal world living in the place where the unit is installed (birds, bats).
    • When the turbine operates, infrasound is not produced, which is harmful to humans and animals.
    • Lower cost compared to blade designs.
    • Ease of execution installation work, due to the assembly of the main elements in the factory.
    • Simplicity and ease of maintenance.
    • Long service life.

    The disadvantages of such devices are:

    • Wind is an atmospheric phenomenon that is beyond human control, so it is impossible to predict, over a long period, the strength of its flow and direction of movement;
    • Due to the variability of the strength of the wind flow, it is necessary to provide significant electrical capacities for storing the generated energy;
    • High cost of a set of equipment;
    • Before installing high-power wind turbines, it is necessary to calculate the economic feasibility in connection with the wind map of the selected region.

    Where can I buy

    A wind generator, and accordingly a separate element from this installation, which is a wind turbine, is a specific product. Therefore, it is best, if you want to purchase such equipment, to contact a company that specializes in the implementation of just such installations.

    Choosing such an organization will help you avoid mistakes when selecting required model In addition, specialists will be able to assist with the installation and subsequent maintenance of the purchased unit.

    In addition, you can use Internet resources, where a wide range of companies are presented that offer products for sale in this particular segment of devices, but these are usually products of Chinese manufacturers, the quality of which has many complaints. In addition, when purchasing complex equipment, such as wind turbines, via the Internet, there is no opportunity to return low-quality goods and receive qualified assistance.

    Due to the fact that it is quite difficult to make a wind turbine located in a closed space (cylinder), this is done by professional designers and engineers, you can make a turbine for a wind turbine with a vertical axis of rotation with your own hands, using improvised means.

    To do this you will need the following materials:

    1. Durable plastic pipe largest diameter, from what is available.
    2. Sheet plywood with a thickness of 10.0 - 12.0 mm;
    3. Wood screws;
    4. Metal pin with a diameter of 12.0 – 16.0 mm;
    5. Nuts and washers corresponding in diameter to the existing stud;
    6. Car hub, complete with bearing.

    and tool:

    1. Cutting tools: hacksaw, grinder with cutting wheels, jigsaw, knife;
    2. Grinding tools: grinder with grinding wheels, files, sandpaper;
    3. Kit wrenches and screwdrivers;
    4. Screwdriver.

    The design that should be obtained as a result of the work done, and the diagram of its operation, are presented in the diagram below:

• The work is performed as follows:
  • A blank is made from an existing pipe; for this, the pipe is cut to the required length (about 1.0 meters), after which it is cut along its axis. The result is 2 equal in length and length of the arc, halves.
  • Two circles are cut from plywood, in accordance with the diameter of the pipe, after which, according to their diameter, they are divided into two parts. The result is four blanks in the form of a semicircle.
  • Plywood blanks are installed inside the pipe blanks, at the top and bottom of each of them. Fastening will be done using self-tapping screws. The result is two half-barrels.
  • The resulting half-barrels are connected to each other in such a way that they overlap one another. In addition, in places of overlap, it is necessary to select a segment (not shown in the diagram) so that they seem to fit inside each other. The depth of the selected segment is at least 50.0 mm, the length can be arbitrary.
  • 2 circles with a diameter of 100.0 mm are cut out of plywood, which are also secured with the help of frosts at the top and bottom of the half-barrels being connected. The result is a rigidly connected structure.
  • In the middle of the resulting imaginary circle, and this should be the point where the segments are selected (on top of the fixed plywood circles), a hole is made in accordance with the diameter of the existing pin. Holes are made in the upper and lower parts of the workpieces.
  • A pin is inserted into the holes, which is secured in the assembled structure by installing washers and nuts.
  • For existing vehicle hub, according to internal diameter bearing, and the diameter of the stud, a sleeve is made. The bushing is pressed into the bearing, after which a pin is put on it, which is additionally secured with nuts.

  For complete readiness of the wind installation, it is necessary to install a pulley on the stud below the location of the hub, through which the rotational movement from the turbine will be transmitted to the electric generator, and install the assembled turbine in the place chosen for installation.

Wind is a form of solar energy. Winds are caused by uneven heating of the atmosphere by the sun, the irregular structure of the earth's surface and its rotation. Wind flow trajectories are changed by the landscape of the earth, bodies of water and vegetation. People use wind or wind energy for many purposes: sailing, kite flying, and even generating electricity. The terms "wind energy" and "wind power" describe the process of using wind to generate mechanical energy or electricity. Wind turbines (wind generators) convert the kinetic energy of the wind into mechanical energy, which can be used for a number of specific tasks, such as grinding grain or pumping water.

So how do wind turbines produce electricity? Simply put, a wind turbine works opposite a fan. Instead of using electricity to create wind, like a fan, wind turbines use wind to create electricity. The wind turns the blades, which rotate a shaft connected to a generator that produces electricity.

This overhead view of a "wind power plant" shows how a group of wind turbines can produce electricity for consumer grids. Through transmission and distribution lines, it reaches homes, businesses, schools, and so on.

Types of wind turbines

Modern turbines fall into two main groups: horizontal-axis and vertical-axis, similar to the Darrieus “beater” model, named after its French inventor. Horizontal axis turbines typically have two or three blades. These three-bladed turbines operate "upwind", with the blades facing the wind.

The 3.6 megawatt GE Wind Energy turbine is one of the largest ever installed:

Turbines bigger size more effective. And in terms of price too.

Wind turbine sizes

The size range of "service" scale turbines extends from 100 kilowatts to several megawatts. Large turbines are grouped together into “wind farms” that supply wholesale electricity to the grid.

Small single turbines below 100 kW are used to power homes, telecommunications antennas or power water pumps. Small turbines are sometimes used in conjunction with diesel generators, batteries and solar panels. These systems are called "hybrid wind systems" and are used in remote locations where connection to electrical network impossible.

Inside a wind turbine

Anemometer	Anemometer	Measures wind speed and transmits speed data to the controller.
Blades	Blades	Most turbines have either two or three blades. The wind passing through the blades causes them to “fly up” and rotate.
Brake	Brake	Disc brake, mechanical, electrical or hydraulic drive to stop the rotor in critical situations.
Controller	Controller	The control controller starts the machine at wind speeds of approximately 8...16 mph and shuts down the machine at approximately 55 mph. Turbines do not operate at wind speeds above 55 mph because strong winds can destroy them.
Gear box	Transmission	Mechanically connects the low-speed turbine shaft to the high-speed one, increasing the rotation speed from 30...60 rpm to 1000...1800 rpm, that is, up to the speed required by most generators to generate electricity. The gearbox is an expensive (and heavy) part of a wind turbine and engineers are investigating generators." direct drive", which operate at lower rotational speeds and do not require gearboxes.
Generator	Generator	Usually standard induction generator which generates electricity alternating current frequency 60 Hertz (for the USA).
High-speed shaft	High speed shaft	Powers the generator.
Low-speed shaft	Low speed shaft	The rotor rotates this shaft at a speed of about 30...60 revolutions per minute.
Nacelle	Gondola	The nacelle is located at the top of the tower and contains the gearbox, low and high speed shafts, generator, control controller and brake. Some gondolas are large enough for a helicopter to land on.
Pitch	Blade rotation	Blades Turn toward or at an angle to the wind to control the speed of the rotor and prevent it from spinning in winds that are too strong or too weak to generate electricity.
Rotor	Rotor	The blades and hub together are called the rotor.
Tower	Tower	The towers are made of steel pipe(shown here), concrete or have an openwork design. Because wind speed increases with height, taller towers allow turbines to capture more wind energy and produce more electricity.
Wind direction	Direction of the wind	There are so-called “against the wind” turbines, because during operation they are turned “facing” the wind. Other turbines are designed to operate on the "leeward" side, facing away from the wind.
Wind Vane	Vane	Detects the wind direction and transmits data to the control controller to orient the turbine according to the wind direction.
Yaw drive	Nacelle drive	Upwind turbines must be pointed into the wind and the nacelle drive is used to correct the rotor direction as the wind direction changes. Downwind turbines do not require rotor drive, since the wind blows at their “back”.

• Regarding the blades (with a horizontal axis), I liked the article from the magazine “Modelist-Constructor”, 1993, No. 8. http://publ.lib.ru/ARCHIVES/M/%27%27Modelist-konstruktor%27%27/%27%27MK%27%27,1993,N08.%5Bdjv-002%5D.zip It is clearly written there and principle of operation and how to do it.
• Rather than watching such press, it is better to read (thoughtfully) Fateev’s book “Wind Engines and Wind Turbines”
• Regarding industrial wind turbines dzen +1 [B] Three blades as a compromise between On the one hand, the desire to ensure the structural strength of the blades and reduce dynamic loads, reduce the cost of wind turbines by reducing the number of blades, provide permissible level aerodynamic noise and vibrations, increasing with increasing speed of movement of the tips of the blades and, on the other hand, the desire to increase the efficiency of the wind turbine, which increases with increasing wind turbine speed and the number of blades. [I] Textbook “Wind engines and wind turbines” Fateeva E.M.
• A 3-blade turbine has a constant moment of inertia relative to the orientation axis, independent of the position of the blades, therefore no vibrations occur when the windmill is oriented. The 2-bladed one shakes when orienting.
• RE: Why 3 blades / Vitaly71 Well, first of all, the efficiency is the highest for a single blade, but it is dynamically unbalanced. And the sound of a two-blade is blatant, but a three-blade is the latter with a high coefficient, since increasing the blade beyond 3...5 DOES NOT CHANGE the efficiency, but it strongly reduces the SPEED of rotation, which means material consumption
• Depending on the speed of the windmill, for maximum KIEV, there is an optimal fill factor of the wind turbine and it depends little on the number of blades; an ideal turbine is an infinite number of infinitely narrow blades. The most balanced are 3, 6, 12, 18, ..., 3 is the minimum number.
• But the sound of the two-blade blade didn’t bother me, even though I sharpened the wrong edge through inattention.
• is this about a gigawatt??? But ordinary (uncaught) wind also causes a wide range of sound vibrations (INF included), chaotically pressing on leaves, tree branches, windows and walls of buildings. And even in an open field, the wind presses on a person’s ears. Thunderstorms and earthquakes are also generators of infrasound. Insects and some plants (tumbleweeds) can be carried away by air currents. Ban all this urgently!!! :)))
• Yes, this is nonsense, rumors that were financially supported in the 80s by the owners of thermal power plants. The problem with megawatt windmills is that birds (especially in the cold) stick around and crap around them, and if there are holes inside, they try to build nests inside. I've seen nests in windmills myself.
• Good afternoon, gentlemen. Your conversations are interesting, but I apologize, I have a question, has anyone assembled a Gorlov turbine (http://www.quietrevolution.com/), I did it, but it doesn’t turn even in strong winds, if anyone knows what the secret is (there’s a twist somewhere) I don’t know where)
• Looks like another person wants to step on a rake. There is a simple truth, confirmed theoretically and practically, more than once - all verticals are made for beauty, but not for work.
• This so-called throat turbine - a regular Darrieus rotor, twisted into a spiral to reduce sudden short-term loads. But in addition to reducing the loads, the KIEV drops greatly and therefore, in order for it to spin, you need to make very high-quality blades and have a strong wind. Well, it’s good to use it only for beauty or to promote some investors for money.
• That is, no one knows what it takes to make it spin?
• High-quality blades and strong winds.
• The profile of the blades must be precise; flat strips will not work. Plus there is a good wind and it needs to be accelerated to operating speed; the turbine itself will not accelerate even in good wind. Against a windmill with a horizontal axis, its CIV is almost 3 times smaller. It looks beautiful, nothing to say :)
• airfoil of the wing? And for acceleration you can use a Savonius rotor.
• It has been proven by calculations and practice that the profile of the blade (chord) should be close to ideal, the front plane reflecting the wind flow along the angle of attack where it is created overpressure may be flat, but the rear plane of the blade, in order to create a greater difference in air pressure behind the blade than in front of it, must be convex, unevenly creating rarefied air masses. Maybe what’s wrong?
• Yes, look at any atlas of aerodynamic profiles and see what kind of profiles they are.
• Yes, I'm aware of them.
• In large turbines (relatively speaking), the blades are controlled indirectly, from the outside. At least in Crimea, at wind farms, control was from a personal computer, depending on the load, speed, etc.

Details Published 09.24.2014 01:28

Wind turbines float in the air, some spin horizontally, others vertically. Some are lighter than air, while others are majestically integrated into the skyscraper of buildings. The variety of wind turbine designs around us is simply breathtaking. Wherever the wind blows, a uniquely designed wind generator can be installed to generate electricity.

You can familiarize yourself with the design of a traditional wind turbine.

Below is a selection of photographs of the most spectacular and truly ambitious wind turbine projects of the third millennium.

MagLev – magnetic levitation wind turbine

MadLev is a maglev wind turbine that can generate one gigawatt of power (enough to power 750,000 homes) and provide clean energy for one cent per kilowatt-hour.

Magnetic levitation is very effective method capturing wind energy. Turbine blades are suspended on air cushion, and the energy is directed to linear generators with minimal losses. Big advantage magnetic levitation is that it reduces maintenance costs and increases the service life of the generator. The manufacturer claims that it requires less land space than hundreds of conventional turbines. The MagLev wind turbine was invented by Ed Mazur in 1981. There are already several MagLev wind turbines in China.

M.A.R.S.

M.A.R.S is an interesting device that is capable of using wind energy (much like a windmill) to generate electricity. Electricity is transmitted to the ground through a wire on a steel cable.

Because M.A.R.S is filled with helium, it is able to fly much higher than other wind turbines are positioned to access higher wind speeds. Production of the device with a power of 4.0 kW has already begun.

Screw wind turbine

Spiral structured wind turbines - modern technology windmills. These amazing devices will replace the usual long blades. New windmills They work the same way as the old ones, but have a unique design that will help convert wind energy more efficiently.

LoopWing

LoopWing is an experimental wind generator developed in Japan. First presented at the exhibition in 2006. Model E1500 works with low level vibration, with a wind speed of 16 m/s.

City turbines - "Silent Revolution"

Many people think wind turbines ruin the landscape. Conventional turbines are best suited for wide open spaces where there is a lot of wind. Turbines on vertical axis, screw design, are much better suited for urban conditions.

A British company has applied for permission planning work to build one of the wind turbines near Buckingham Palace.

The Quiet Revolution turbine has 5-meter blades that can generate 10 kWh of energy with wind speeds of just 5.8 meters per second. Built-in LEDs in each S-blade are used to create images as the turbine rotates.

Jellyfish

With a height of only 36 cm, jellyfish can generate about 40 kilowatt-hours per month.

Medusa consists of the following parts:

Vertical axis of wind turbine

Controller

Variable Speed ​​Asynchronous Generator

Jellyfish can operate in the most remote areas, reducing the cost of building expensive power lines. While the use of micro windmills is nothing new, the $400 price tag and simplicity of the design make jellyfish look promising.

Highway turbines

This is a new way to capture some of the energy expended by vehicles traveling at high speeds on highways. The project was developed at Arizona State University. The movement of vehicles, especially trucks, will cause air turbulence, the flow of which will drive the turbines.

Analysis shows that at a vehicle speed of 110 km per hour, each turbine can produce 9,600 kWh per year.

Incredible! But it will happen soon. Third generation alternative energy sources will revolutionize the world as a whole. The beginning has already been made. Wind turbines are the electric power future of humanity.

Introduction

Although alternative types Energy technologies such as wind turbines, for example, still receive undeservedly little attention; they continue to be developed intensively. Perhaps soon the mighty of the world This will be understood that insane mining does more harm than good, and natural forms of energy will firmly enter our daily life. This hope is closely related to the fact that some time ago the appearance of a third generation wind generator was announced.

What is a third generation wind generator

It is traditionally believed that the first generation devices that converted wind energy were ordinary ship sails and mill wings. A little over a century ago, with the development of aviation, a second-generation wind generator appeared - a mechanism whose operation was based on the principles of wing aerodynamics.

It was a breakthrough at that time! Although, if we take it as a whole, the second generation windmills are low-power, because due to design features cannot work in strong winds. Therefore, in order to receive more electricity, it was necessary to increase in size, which entailed additional financial costs for development, production, installation and its operation. Naturally, it couldn’t stay like this for long.

In the early 2000s, development specialists announced the appearance of a third generation wind generator - a wind turbine. The design, operating principle, installation, and most importantly, the power of the new device is fundamentally different from its predecessors.

Device

Simplicity. This is exactly the word that can be used to describe the design of a wind turbine generator. Compared to bladed wind generators, a wind turbine has a much smaller number of working units and many more fixed elements, making it more resistant to various static and dynamic loads.

Wind turbine design:

• fairing, there is internal and external;
• fairing of the turbogenerator assembly;
• gondola;
• turbine;
• generator;
• dynamic fastening unit.

From additional systems The wind generator is equipped with inversion, accumulation and control units. There are no systems for adjusting the blades and orientation to the wind, traditional for a bladed wind generator. The latter is replaced by a fairing, which also acts as a nozzle, catches the wind and increases its power. If we take into account that the energy of the wind flow is equal to its speed in the cube V3, then due to the presence of the nozzle this formula looks like this: V3x4 = Ex64. Moreover, due to its cylindrical design, the fairing has the ability to self-adjust to the direction of the wind.

Advantages

Any New Product or the invention must always stand out significantly from its predecessors, and necessarily in better side. All this can be said about the new wind generator with a turbo design. One of the main advantages of a wind turbine is its resistance to strong winds. Its design is designed in such a way that it will operate efficiently and safely beyond the critical limits for conventional bladed wind turbines: from 25 m/sec to 60 m/sec. But this is not the only advantage that a wind turbine has, there are several of them:

1. Lack of infrasonic waves. Finally, scientists managed to solve one of the important issues that wind turbines have. It is precisely because of the existence of such side effect The APU (wind power plant) has been criticized by opponents of alternative energy; infrasound has a negative impact on the living environment. But now, thanks to the absence of infrasonic waves, turbine-type wind generators can be installed even within city limits.



2. The absence of blades eliminates several tasks that faced the designers and manufacturers of the wind generator. First, significant costs of effort and money for operational control of bladed wind turbines are eliminated. Second, the wind wheel blade is the most difficult element of a wind generator to manufacture. The lion's share of the cost of a conventional wind turbine is the cost of manufacturing the blades. In addition, there are known cases when, during strong gusts of wind, the blade broke, scattering fragments over hundreds of meters.
3. Easy to assemble and install. All complex designs or the units are manufactured and assembled by the manufacturing plant, only the final stage assembly and installation on the mast. Plus, the lightness of the structural elements allows you to use the most common lifting equipment when installing the wind generator.
4. Connection diagram. Unlike a bladed APU, the turbine is connected according to a standard scheme. This fact is not affected in any way by those technical specifications, which is put forward by the future owner of the wind turbine.
5. The long service life is due to the materials from which the wind generator and its individual parts are made. Considering preventive work, which are mandatory when operating a wind turbine, the service life of the device can be up to 50 years.



Geography of turbine APU operation

The most real and optimal place installation of a turbine wind generator will be on the shore of a lake or sea. Near bodies of water, such a wind generator will work practically all year round, because thanks to its nozzle device, it is very sensitive to light breezes and other slightest manifestations of wind with a speed of 2 m/sec.

With the same success, VST will work within the city, where a conventional wind generator is unable to work for a number of well-known reasons:

1. Unsafety of bladed wind turbines.
2. The infrasound they emit.
3. The minimum wind speed for operation of a bladed wind generator is 4 m/sec.

An interesting fact that proves the advantage of VTU

One of the cornerstones on which the position of opponents of alternative energy is based is that wind power plants interfere with the operation of location equipment. During operation, the wind generator interferes with the passage of radio waves. Considering the size of individual wind power plants, which can range from several tens to hundreds of square kilometers, it is clear why the governments of many countries have begun to block alternative energy projects at the state level - this is a direct threat to national security.


For this reason, a French company that produces components for wind generators took on a difficult task in terms of execution - to make the wind power plants themselves invisible to radar, and not the space around the wind generator. For this purpose, the experience gained in the manufacture of Stealth aircraft will be used. New components are planned to be released onto the market in 2015.

But where is the fact that proves the advantage of VST over bladed wind turbines? But the fact is that wind turbines do not interfere with the operation of location equipment even without expensive Stealth technology.

Prospects for the development of alternative wind energy

The first attempts to start using a wind generator on an industrial scale were made back in the middle of the last century, but were unsuccessful. This was due to the fact that oil resources were relatively cheap, and the construction of wind power stations was unprofitably expensive. But literally 25 years later the situation has changed radically.

Alternative energy sources began to develop intensively in the 70s of the last century, after the pace of mechanical engineering in the world increased sharply and countries faced an oil shortage, which led to the oil crisis of 1973. Then, for the first time, the non-traditional energy sector in some countries received state support and the wind generator began to be used on an industrial scale. In the 80s, the global wind energy industry began to become self-sufficient, and today countries such as Denmark, Germany and Australia are almost 30% self-sufficient from alternative sources energy, including wind power plants.


Unfortunately, and perhaps fortunately, last year's trend in the oil market with unstable oil prices makes us seriously think that the times when cheap oil was good are in the past. Today, for many countries, the cheaper the oil, the more profitable it is to develop non-traditional energy; this primarily applies to the CIS countries. Therefore, there are prerequisites for wind energy to develop. Let's see how it will be.