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Axial gap optimisation of half diameter shifted counter rotating dual rotor wind turbine

Author

Listed:
  • Csaba Hetyei

    (Obuda University, Doctoral School on Safety and Security Sciences, Budapest, Hungary)

  • Ferenc Szlivka

    (Obuda University, Donát Bánki Faculty of Mechanical and Safety Engineering, Budapest, Hungary)

Abstract

General energy demand is continuously increasing due to the fact that wind turbines and other renewable energy sources have begun to appear in previously unexplored areas, such as on the roofs of buildings. In view of this demand, a new type of wind turbines described in this article could become one of the energy generating tools in a smart grid system. In this article, first conventional and unconventional wind turbines are reviewed with respect to efficiency. Then a Counter Rotating Dual Rotor Wind Turbine (CO-DRWT) construction is analysed with Computational Fluid Dynamics (CFD) codes considering a fixed radial and a variable axial distance. In the analysis, power coefficients were calculated for different configurations. It was found that in case of the dual rotor wind turbine, the optimal axial distance for half diameter radial shift was in the range of 0,2 - 0,25 diameter.

Suggested Citation

  • Csaba Hetyei & Ferenc Szlivka, 2020. "Axial gap optimisation of half diameter shifted counter rotating dual rotor wind turbine," Interdisciplinary Description of Complex Systems - scientific journal, Croatian Interdisciplinary Society Provider Homepage: http://indecs.eu, vol. 18(3), pages 389-399.
    • Handle: RePEc:zna:indecs:v:18:y:2020:i:3:p:389-399
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    References listed on IDEAS

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    1. Lee, Seungmin & Kim, Hogeon & Son, Eunkuk & Lee, Soogab, 2012. "Effects of design parameters on aerodynamic performance of a counter-rotating wind turbine," Renewable Energy, Elsevier, vol. 42(C), pages 140-144.
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    More about this item

    Keywords

    CFD; CO-DRWT; Optimisation; Smart Grid; Wind Turbine for Urban Areas;
    All these keywords.

    JEL classification:

    • O13 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Agriculture; Natural Resources; Environment; Other Primary Products
    • Q42 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Alternative Energy Sources

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