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SCIENMET GROUP is the world’s leader in stand-alone wind power engineering. In 2005 it was given Grand Prix and three gold medals of the world exhibition of innovation in Brussels «Eureka-2005».
On the basis of high conversional technologies Scienmet group presents wind power plants with power output 5, 20, 30 and 40 kW and wind-diesel plants on their basis. Wind-diesel power plants can be joined into local grids, and also combined with solar batteries. Depending on wind potential wind-diesel power plants allow saving up to 50-70% fuel which is used by diesel-generators of commensurable power. Main constructional decisions are protected with patents. Sorry, the page is under development and will be available soon.Advantages
One can watch wind power plants operation at wind turbine testing ground of the Scienmet group in the town of Dubna, Moscow region.
How to get from Moscow?
From Savelovskiy station by electric train or by bus up to station Bolshaya Volga.
By car along the Dmitrovskoye Highway up to the station Bolshaya Volga, then through the tunnel in the direction of Hydro electric station.
Tel. in Dubna:+7 (49621) 2-95-71
Strategic purposes of the wind energy use are:
- Reduction of non-renewable sources consumption
- Reduction of ecological load
- Increasing of the decentralized consumers
- Providing of the decentralized consumers
- Reduction of expenses for season fuel
Necessity of wind energy development is determined with its part in solution of following problems:
- Providing of stable heat and electricity supply of population and manufacturers in the zones of decentralized energy supply.
- Providing of assured minimum of energy supply of the population and manufacturers in the zones of centralized energy supply but with energy shortage, prevention of losses from breakdown and restrictive disconnections;
- Reduction of harmful issues from power plants in the towns and cities with difficult environment, and also in rest places.
It is known that the main reason of wind is uneven sun heating of the ground surface. The ground surface is heterogeneous: land, oceans, mountains, forests. This provides different heating of the surface under the same width. The Earth rotation also causes air current deviation. All these reasons complicate general atmosphere circulation. A series of separate circulations appears, these circulations are connected to each other. In the North Hemisphere constant winds come from the north-east, in the South Hemisphere – from the south-east. Average speed of south-east trade-winds of the North Hemisphere at the ground surface is 6-8m/s. Most places of the European part of Russia are related to the zone of average wind intensity. In these places average annual wind speed is 3,5…6m/s.Average annual speed of air flows at 100 meter height is more than 7 m/s.
For transforming wind flow into electric energy wind engines together with electric generator are used. For all wind engines there is one operating principle: rotor with blades rotates due to wind, it gives the twist moment through the gear system to the generator shaft which generates power, water pump or electric generator. The bigger the rotor diameter, the bigger air flow it takes and the system generates more power. Existing wind engine systems are divided into three groups.
The First group includes wind engines with rotor in vertical flatness, rotation flatness is perpendicular to wind direction and rotor axle is parallel to the flow. These wind engines are called blade engines.
The second group includes wind engines with vertical rotation axle of the rotor. They are divided into groups according to construction scheme:
The third group includes wind engines, which operate according to the principle of water mill wheel, they are called drum engines. These wind engines have rotation axle which is horizontal and perpendicular to wind direction.
Good aerodynamic qualities of blade wind turbines and high wind use coefficient in comparison with other wind turbines, possibility of higher power wind turbines production, light weight – are main advantages of these wind turbines.
There are many places world wide where there is no traditional electricity. They occupy about 70% of territory of Russia on which about 30% of population live. In such places usually there are diesel or petrol generators which generate power. Thousands tons of diesel and petrol fuel are transformed into the smoke, and the energy which is got due to this is much more expensive than that which is generated by large power stations. Most such places have rather high wind potential and stand alone wind power plants together with heat-engines would save up to 90% of hydrocarbon fuel.
The main advantage of stand-alone wind power plants is possibility of power generating not depending on the grid, they operate like diesel generators, but don’t need any fuel. Our company has elaborated 2/5, 20, 30 and 40 kW stand alone wind turbines. Innovation technologies which were used during their elaboration were awarded with Grand-prix and three gold medals of Brussels Exhibition of Innovation «Eureka - 2005».
These are classical wind turbines and they have a series of specifications: The rotor is placed behind the tower relative to the wind. The rotor turns itself relative to the wind in such a manner that it could use wind energy in most optimal way. Blade pitch allows to support constant RPM at any operational wind speed. Due to this we managed to reach the highest wind use coefficient.
