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http://dx.doi.org/10.21289/KSIC.2021.24.6.801

A Numerical Study on Effects of Flow Analysis with Flow Control Valve on Turbine of OWC Type Wave Power Generator  

Ro, Kyoung-Chul (Railroad Mechanical Engineerign Dongyang University)
Oh, Jae-Won (Offshore Industries R&BD Center, Korea Reserch Institute Of Ships & Ocean Engineering(KRISO))
Kim, Gil-won (Marine Renewable Energy Research Division, Korea Reserch Institute Of Ships & Ocean Engineering(KRISO))
Lee, Jung-Hee (Offshore Industries R&BD Center, Korea Reserch Institute Of Ships & Ocean Engineering(KRISO))
Publication Information
Journal of the Korean Society of Industry Convergence / v.24, no.6_2, 2021 , pp. 801-808 More about this Journal
Abstract
In this paper, a numerical analysis was conducted on the effect of the flow control valve of a oscillation water column(OWC) type wave power generator turbine. The OWC wave power turbine operates with compressed air in the air chamber according to the change of wave height. When the wave height changes rapidly, a flow control valve is required due to overload of the turbine and reduced efficiency. Therefore, in this paper, a flow control valve with an opening angle of 60 degrees was installed in the front of the turbine, and the pressure drop, torque, and overall performance were calculated according to the change of turbine RPM and flow rate of turbine inlet. In conclusion, the flow control valve with an opening angle of 60 degrees affects when the turbine rotates at low rotation and the inlet flow rate is large. But it does not have a significant effect on overall turbine performance and it is necessary to find the optimal angle in the future works.
Keywords
Oscillation Water Column Type Wave Power Generator; Flow Control Valve; Computational Fluid Dynamics(CFD); Pressure Drop; Efficiency; Torque;
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Times Cited By KSCI : 1  (Citation Analysis)
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