The effect of design parameters on energy characteristics of Darrieus rotor
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Keywords:
Darrieus rotor, rotation shaft, windturbine, the fill factor, thermal protection, ideal rotor.Abstract
In the last 10-15 years the use of wind energy is growing. There are more than 20,000 wind power turbines with a total capacity of more than a few megawatts in the world. Kazakhstan has significant wind power resources. Resources of the Jungar gate and Shelek complex in Almaty region are the best known in this respect. Their capabilities for use in electricity generation of air flow are unique. This article describes the main types of wind turbines and the benefits of Darrieus rotor over other wind turbines. The article provides the basic calculations to determine the effect of the wind turbine Darrieus design characteristics on its energy efficiency. This article shows the dependence of the maximum utilization coefficient of wind energy vertical axis windwheels from the number of blades with constant filling factor σ, from the number of blades with their constant width, from blades elongation λ. Design characteristics for 1 kW rotor were identified based on these results. Also, wind turbine scheme, that can provide thermal protection by warm air natural ventilation in the rotating elements of wind turbine which arises due to centrifugal forces, is shown.References
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2. Baklushin P.G., Vashkevich K.P., Samsonov V.V. Experimental Study of Aerodynamic Characteristics of Orthogonal Vane Wind wheels // Scientific Papers’ Collection of Hydro project. –M., 1988. – Edition 129: Wind Power Stations. – 1988. – P. 98-105.
3. Voronin S.M., Babina L.V. Operation of Wind Turbineduring ChangingWind Direction // Alternative Energy and Ecology. – 2010. № 1. – P. 98-100
4. Gorelov D.N. The Analogy between the Flapping Wings and the Wind wheel with Vertical Rotation Axis // Applied Mechanics and Technical Physics. – 2009. – Vol. 50. – P. 152-155.
5. Turyan K.J., Strikland J., Barg D.E. Capacity of Wind Power Units with Vertical Rotation Axis // Aerospace techniques. – 1988. – P. 100-115.
6. Gorelov D.N., Kuzmenko U.N. Experimental Evaluation of Wind wheel Critical Power with Vertical Rotation Axis // Thermo physics and Aeromechanics. – 2001. – Vol. 8. – P. 329-334.
7. Jasinski W.J., Noe S.C., Selig M.C., Bragg M.B. Wind Turbine Performance under Icing Conditions // Trans ASME J Sol Energy Eng. – 1998. – Vol. 120. – P. 60–65.
8. Laakso T., Holttinen H., Ronsten G,.Tallhaug L., Horbaty R., Baring-Gould I. et al. State-of-the- Art of Wind Energy in Cold Climate. – 2003. – P. 1–56.
9. Dalili N., Edrisy A., Carriveau R. A Review of Surface Engineering Issues Critical to Wind Turbine Performance // Renewable and Sustainable Energy Reviews. – 2009. – Vol. 13. – P. 428-238.
10. Manatbayev R.K., Yershina Sh. A., Yershina A.K. Method for Thermally Protecting Operating Revolving Type Wind-Power Installation, Involves Causing Internal Natural Ventilation in Wind Unit by Centrifugal Force to Heat All Elements of Wind- Power Installation by Warm Air. Patent Number(s): RU2008137251-A; RU2447318-C2 International Patent Classification: F03D-003/00 Derwent Class Code(s): Q54 (Starting, ignition); X15 (Non-Fossil Fuel Power Generating Systems) Derwent Manual Code(s): X15-B01A6
11. Ivanov I.I., Ivanova G.A., Perfilov O.L. Model Studies of Wind Stations’ Rotary Operation Wheels. Scientific Papers’ Collection of Hydro project. –M., – 1988. – Edition 129: Wind Power Stations. – P. 106-113.
12. Gorelov D.N. Aerodynamics of Wind wheels with vertical rotation axis // Omsk: Printing center KAN. – 2012. – P. 68.
13. Yershina A.K., Manatbayev R.K. Organization of natural ventilation in side operating unit Darrieus // Energy. –Moscow. – 2013. – №1-2. – P. 63-66.
14. Yershina A.K., Manatbayev R.K. Deter-mination of hydraulic resistance of a symmetric airfoil NASA -0021.KazNU Bulletin, Part of Mathematics, Mechanics, Informatics. – 2006. – №4 (51). – P. 56-58.
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Manatbayev, R., Georgiev, A., Popov, R., Dzhonova-Atanasova, D., А.А. K., & Zulbukharova, E. (2016). The effect of design parameters on energy characteristics of Darrieus rotor. International Journal of Mathematics and Physics, 7(1). Retrieved from https://ijmph.kaznu.kz/index.php/kaznu/article/view/167
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Nuclear Physics and Nanotechnology
