Laboratory Characterization of a Liquid Metal MHD Generator for Ocean Wave Energy Conversion

Harnessing ocean wave energy is an old challenge that has gained momentum in recent years. In this paper, we present the flow and electrical characterization of a prototype alternate liquid metal magnetohydrodynamic (MHD) generator at laboratory scale which potential to make use marine waves for its conversion into energy. The eutectic alloy Galinstan, used as working fluid, was driven oscillatory motion duct rectangular cross-section exposed transverse magnetic field generated by permanent neodymium magnets. electric current induced collected through copper electrodes delivered load. axial velocity component along measured using ultrasonic Doppler velocimetry different oscillation frequencies. turn, output currents voltages were operation conditions power efficiency estimated from experimental measurements. coupling converter (WEC) discussed.