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Mar. Res. 2022/12
Vol.2, Iss.2 :77-96
DOI:10.29677/MR.202212_2(2).0005
Design Optimization of the U-Type Oscillating Water Column Wave Energy Converters

Chen-Chou Lin1*, Duy Tong Nguyen 2 and Yi-Chih Chow2
1Center for Ocean Energy System, College of Engineering, National Taiwan Ocean University, Taiwan ; Department of Mechanical & Mechatronic Engineering, National Taiwan Ocean University, Taiwan
2Center for Ocean Energy System, College of Engineering, National Taiwan Ocean University, Taiwan ; Department of Systems Engineering & Naval Architecture, National Taiwan Ocean University, Taiwan


Abstract: Considering the medium wave resources in Taiwan, the oscillating water column (OWC) shows several advantages upon implementation. The installation and maintenance cost of an OWC is relatively lower, and the concrete structure is more survivable under seawater impact and erosion. Survivability is a primary concern because Taiwan suffers from extreme weather during typhoon season, and the OWC structure can withstand harsh conditions. This paper focuses on the design optimization of the U-OWC by establishing a general design procedure to achieve optimal energy capture performance. The optimal geometrical design is critical for implementing Taiwan's OWC wave power system. We establish the optimal chamber design procedure through a two-dimensional numerical simulation and artificial neural network (ANN) approach. Finally, the performance of the optimal design is compared with the design of a previous paper. The result shows that the capture factor of the optimized chamber geometry of U-OWC is 21.9% higher than the previous design.


Keywords:  Oscillating Water Column, Optimization, Artificial neural network, Chamber, Capture factor, Response amplitude operator.

 
*Corresponding author; e-mail: cclin@email.ntou.edu.tw
© 2022  Marine Research , ISSN 2709-6629 




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