Deep ocean wave energy systems: Experimental investigations

Abstract

Deepwater offshore structures have access to very powerful ocean waves by virtue of their location and site condition. Should the energy possessed by these waves be harnessed, it can be one of the popular green energy systems. Present study aims at the design and development of a new device, which can become a component of the offshore semisubmersible platform to produce electricity that is required for its operations, partially. Few wave energy devices are developed in the recent past; commonness amongst all is that they harness heave, or surge energy of the wave impact. In the present study, heave energy of the buoy is converted to mechanical work by deploying hydraulic cylinders and a motor. The experimental studies showed a few limitations in terms of its operational sea states; device needs to be parked under rough weather. The generated power from the waves will be utilized in the semi-submersible platform for deep-sea mining applications. Applicability is limited to calm sea state and deepwater conditions.