A Study on the Effect of Dual PTO in OWC using CFD

Abstract

In this study, the primary energy conversion performance of the OWC (Oscillating Water Column) WEC (Wave Energy Converter) device modeled with single or dual PTOs was compared and analyzed based on CFD analysis methods. To demonstrate the feasibility of dual orifice applications for dual PTO, it was shown that dual-impulse turbines can be replaced by dual orifice through CFD analysis in which impulse turbines are physically modeled. By presenting the results of the evaluation of the primary energy conversion efficiency under various wave conditions of the OWC Chamber with single or dual PTO, the total energy conversion amount of the chamber with dual PTO was relatively higher than that of the chamber with single PTO.