Abstract

In this thesis, design calculation and fabrication of H Darrieus VAWT are carried out. The purpose of this thesis is to produce power of electricity. H Darrieus wind turbine is a type of vertical axis wind turbine. This wind turbine consists of three straight blades, technically an airfoil which is connected to the radial arm and rotating main shaft. In this thesis, the components required for this wind turbine like airfoil, main shaft and bearing are properly designed. The power calculation with respect to the wind velocity, swept area and number of blades are included. The yearly average wind velocity is 4 m s and number of blade is three. The diameter of rotor is 0.915 m and height of rotor is 1.067 m. As a result, the turbine power is 14.16 W. The NACA 0015 airfoil of NACA series is chosen. 100000 in Reynolds number, 37.5 in the ratio of lift and drag coefficient and 6° in angle of attack are included in this airfoil. The rotor solidity is 60 percentages, the chord length of airfoil is 0.2 m and maximum thickness of airfoil is 30 percentages of chord length. Finally, the components of H Darrieus vertical axis wind turbine are fabricated with zinc sheet, commercial steel, cast iron, and all parts are assembled together after manufacturing of these components. Hnin Yu Yu Kyaw | Ei Cho Cho Theik | Khaing Zar Nyunt "Design and Fabrication of H-Darrieous VAWT" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd25159.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/25159/design-and-fabrication-of-h-darrieous-vawt/hnin-yu-yu-kyaw

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