Generation of Power using Vortex Windmill

The bladeless windmills use a completely new tactic for apprehending both intermittent wind energy pulses and persistent wind flow under specified wind pressure and velocity. The windmill employs the energy of vorticity, an aerodynamic effect i.e. vortex shedding. As wind strikes a fixed structure, its flow variates and a cyclical pattern of eddies i.e. vortices are formed in the vicinity of the structure. As these forces go strong, the structure starts pulsating or vibrating. Subsequently, these aerodynamic instabilities can be utilized to run a linear alternator or a crankshaft. The natural frequency of the structure should not match with the vibration frequency. The design shown in this paper is entirely different from an old-style windmill. Instead of the gigantic tower, nacelle and blades, this device has a conical frustum mast made up of fiber-glass which is pivoted at one-third length from bottom, a crank, a crankshaft, a hinge joint, a connecting rod. The hollow as well as light weight mast makes this device portable and user-friendly. Also, this low-cost element opens a means for low cost renewable energy source.