Vertical Axis Wind Turbine (VAWT)
Introduction A vertical-axis wind turbine also known as VAWT is a type of wind turbine wherein the main rotor shaft is connected to the vertical wind blade (not necessarily to be vertically). The opposite side of motor that is the generator and gearbox is located near the ground. this is because if there is any mechanical or electrical problem, it should be easily accessible for the workers. There is no need for vertical-axis wind turbine (VAWT) to be pointed into the wind, which eliminates the requirement for wind-detecting and direction components. Why vertical axis wind turbine? Higher efficiency Less space Cost is less as compared to HAWT It is found that the vertical-axis wind turbine is more efficient than horizonal axis wind turbine. A VAWT has efficiency range of 10-15%. The efficiency can be increased by adjusting angle, rotation direction, turbine spacing, number of rotors, etc. Material The blade model of VAWT is based on NACA 0018 airfoil. Wind turbines are ma...