Study of Utilization of Wind Induced Vibrations in Generation of Electricity

Author

Aithal, Abhiram B. ; Deshpande, Anirudh G. ; Dinesh, P.A.

Author_Institution

Dept. of Mech. Eng., M.S. Ramaiah Inst. of Technol., Bangalore, India

fYear

2014

fDate

3-4 April 2014

Firstpage

19

Lastpage

24

Abstract

In this work, mathematical modelling, construction and testing of a low cost turbine-less alternative for utilization of wind energy is demonstrated. The prototype consists of a taut Mylar strip strung between two rigid supports of a frame. The strip is subjected to wind induced vibrations when placed in wind flow. The vibrational motion of the strip is then utilized in generating electricity. A fourth order partial differential equation of motion describing the transverse vibration is developed. The exact, analytical solution for the transverse vibration of the strip is subsequently obtained. The expression for EMF generated is also derived. The prototype was tested and an output voltage of 0.72V and 62.99mW power was obtained at a wind speed of 7m/s. A comparative study between the experimental and theoretical data showed a good agreement between the two.

Keywords

differential equations; electric potential; vibrations; wind power plants; EMF; electricity generation; electromotive force; fourth order partial differential equation; low cost turbine-less alternative; mathematical modelling; power 62.99 mW; taut Mylar strip; transverse vibration; velocity 7 m/s; vibrational motion; voltage 0.72 V; wind energy; wind flow; wind induced vibrations; wind speed; Force; Magnetic flux; Magnetic separation; Magnetomechanical effects; Prototypes; Strips; Vibrations; Electromotive force (EMF); aeroelasticity; mechanical vibrations; wind induced vibrations;

fLanguage

English

Publisher

ieee

Conference_Titel

Green Technologies Conference (GreenTech), 2014 Sixth Annual IEEE

Conference_Location

Corpus Christi, TX

Type

conf

DOI

10.1109/GREENTECH.2014.17

Filename

6824618