Double-OWC Wave Power Extractor of a Taut Moored Floating Structure

A double oscillating water column is proposed as a means to improve the efficiency of wave power conversion over a wide range of wave periods in deep water. A mathematical model of the system based on thermodynamic principles is developed to calculate the efficiency of power-conversion, the hydrodynamic fluid motion, and etc. The physical process by which the proposed concept can significantly improve the efficiency of wave power conversion is clarified through experiments and theoretical treatment.