Design Model of Vertical Axis Wind Turbine Blade (350W)
Zin Phoo Phoo Department of Mechanical Engineering, Technological University (Thanlyin), Yangon, Myanmar [email protected]
The conversion of wind energy to electricity is called a wind turbine. Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (such as grinding or pumping water) or a generator can convert this mechanical power into electricity. This research intends to describe the design calculation and modeling of vertical axis wind turbine blade (350W). Vertical axis wind turbine is situated in Technological University (Thanlyin). Design average wind speed, Vrated is 7.94 m/s and number of blade is four. The selection of blade profile is generated by Q-blade software and it gives the types of blade profile (symmetric NACA series). Among these series, NACA 0015 blade profile was chosen because it gives suitable values of lift and drag coefficient and thickness. In this paper, the blade diameter of rotor, blade chord length, angle of attack, aerodynamic forces, moment forces and power were calculated by using blade element momentum theory. As a result, chord length, c is 0.498 m, rotor diameter, D is 3.17 m, Reynolds number, Re no is 134699 and modeling of blade was proactive by using Inventor software.
Keywords – vertical axis wind turbine, symmetric NACA series, aerodynamics forces, 3D model, Inventor software