Hydrodynamic and energy-harvesting performances of a compact-array OWC device: An experimental study

Zhen Liu, Xiaoxia Zhang, Lei Ding, Ziqian Han and Heqiang Ni

Energy, 2024, vol. 310, issue C

Abstract: This study proposed and evaluated a compact-array oscillating water column device called “Rainbow”, which is expected to adapt to the nearshore wave climate characteristics in China, and satisfy the quick response requirements to coastal and offshore electricity. The proposed device employs a bent-duct buoy concept, with an open mouth in two opposite directions, and embraced a moon pool in a ring shape. Moreover, models under a scale ratio of 1:10 are designed and manufactured, which are fixed on the bottom and tested in regular and irregular wave scenarios in a wave tank. The time histories of critical performance parameters, hydrodynamic and aerodynamic performances, and capture width ratios in different modules were recorded and analyzed to reveal the operating mechanisms of the model. The various module arrangement topologies were found to cause significant differences in the value distribution characteristics of the capture width ratio in different modules, peaking at 0.26. The experimental results can be employed as critical benchmark cases for further designs and optimizations.

Keywords: Oscillating water column; Back-bent duct buoy; Compact array; Experimental study; Hydrodynamics and aerodynamics; Energy-harvesting performance (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:310:y:2024:i:c:s0360544224029840

DOI: 10.1016/j.energy.2024.133209

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