A wave energy system based on converting wave-induced motions into peristaltic flow in a rectangular channel

4th International Scientific Conference SEA-CONF 2018

Ünsalan, D.^1 ; Izet-Ünsalan, K.^2 ; Gürsel, K.T.^1

Dokuz Eylül University, Institute of Marine Sciences and Technology, Izmir, Turkey^1

Ovidius University, Faculty of Industrial, Mechanical and Maritime Engineering, Constanta, Romania^2

关键词: Area of interest;    Engineering community;    Free water surfaces;    Harvesting energies;    Peristaltic flows;    Peristaltic motion;    Rectangular channel;    Wave-induced motions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/172/1/012002/pdf
DOI  :  10.1088/1755-1315/172/1/012002

来源: IOP

【 摘 要 】

Energy from the waves at sea is one of the areas that has been an area of interest of the engineering communities worldwide. Recent decades have witnessed the development of various wave energy systems, using various schemes and principles. The main challenge for most systems in efficient energy converting is posed by converting energy into a usable form from the reciprocating wave induced motions due to the harmonic motion of water particles. The authors have conceived a scheme to convert the harmonic motions of water particles which manifest themselves as the near-sinusoidal motion of the free water surface into a unidirectional water flow that can be exploited for harvesting energy: An array of buoys that are arranged in a line perpendicular to the wave direction, that are allowed to oscillate in heaving motion. The heaving motion enforces a series of actuators to induce a sinusoidal motion to a diaphragm sheet placed inside a rectangular channel, which is placed beneath the free surface at a sufficient depth. The motion of the diaphragm sheet shall result in the peristaltic motion of the otherwise stagnant water. The mass of flowing water peristaltic-pumped then can be channelled to a turbine from which energy can be obtained.