Experimental Study on the Aerodynamic Performance and Wave Energy Capture Efficiency of Square and Curved OWC Wave Energy Conversion Devices

Xueyan Li (), Zhen Yu, Hengliang Qu (), Moyao Yang, Hongyuan Shi and Zhenhua Zhang
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Xueyan Li: Coast Institute & Institute of Sea-Crossing Engineering, Ludong University, Yantai 264025, China
Zhen Yu: Coast Institute & Institute of Sea-Crossing Engineering, Ludong University, Yantai 264025, China
Hengliang Qu: Coast Institute & Institute of Sea-Crossing Engineering, Ludong University, Yantai 264025, China
Moyao Yang: Coast Institute & Institute of Sea-Crossing Engineering, Ludong University, Yantai 264025, China
Hongyuan Shi: Coast Institute & Institute of Sea-Crossing Engineering, Ludong University, Yantai 264025, China
Zhenhua Zhang: Coast Institute & Institute of Sea-Crossing Engineering, Ludong University, Yantai 264025, China

Sustainability, 2023, vol. 15, issue 6, 1-16

Abstract: To develop novel wave energy conversion devices (WECDs) with excellent performance, the relative wave height and pressure in the chambers of square and curved oscillating water column (OWC) WECDs were compared through physical model tests, and the effects of regular incident wave factors, the opening length, the opening width, and the chamber volume on the aerodynamic performance and wave energy capture efficiency (WECE) of the WECDs were investigated. The results indicated good chamber performance for both the square and curved OWC WECDs. As the incident wave height increased, the wave surface elevation, WECE, and pressure in the chamber all increased, while the relative wave height in the chamber decreased. When the opening length, width, and area of the WECD increased, both the relative wave height and chamber pressure increased. The relative wave height in the chamber increased with decreasing chamber volume; however, the chamber pressure and intrachamber WECE decreased with increasing chamber volume. It is recommended that, in actual engineering applications, the overall efficiency of the device be improved by increasing the opening length, width, area and volume of the air chamber.

Keywords: wave energy conversion devices; physical model tests; chamber operating performance; wave energy capture efficiency (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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