scholarly journals Hydraulic Model Test of a Floating Wave Energy Converter with a Cross-flow Turbine

2016 ◽  
Vol 9 (3) ◽  
pp. 222-228
Author(s):  
Sangyoon Kim ◽  
Byungha Kim ◽  
Joji Wata ◽  
Young-Ho Lee
Keyword(s):  
Model Test ◽  
Wave Energy ◽  
Cross Flow ◽  
Hydraulic Model ◽  
Wave Energy Converter ◽  
Energy Converter

Model Test of the Aker Wave Energy Converter Concept

2013 ◽  
Author(s):  
Svein Ersdal ◽  
Anders M. Moe
Keyword(s):  
Model Test ◽  
Wave Energy ◽  
Frequency Domain Analysis ◽  
Wave Energy Converter ◽  
Body Type ◽  
Energy Converter ◽  
Energy Capture ◽  
Wide Range ◽  
Different Characteristics ◽  
Rotational Response

The results from a model test of a wave energy converter of the articulated body type are presented and compared with the analytical results from a linear frequency domain analysis. The focus is on the rotational response of the arm connecting the bodies, since this is the motion used for energy extraction. Using a servo motor with programmable torque vs. angular velocity characteristics constant, linear and quadratic relationships could be modeled in the test. The comparison with the numerical model shows that the presence of walls in the test tank influences the response, thus some uncertainty in the results is found. Still, the capture width is found to be above 60% of the width of the device for the most common waves. For long and large waves the efficiency is very low, which means that the PTO system is not overloaded in storm conditions. Comparison of the response with different characteristics of the PTO show that a quadratic relation gives an effective energy capture over a wide range of sea states with no tuning of parameters.

Design optimization of a novel vertical augmentation channel housing a cross-flow turbine and performance evaluation as a wave energy converter

2021 ◽  
Vol 180 ◽  
pp. 1300-1314
Author(s):  
A.H. Samitha Weerakoon ◽  
Byung-Ha Kim ◽  
Young-Jin Cho ◽  
Deepak Divashkar Prasad ◽  
M. Rafiuddin Ahmed ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Design Optimization ◽  
Wave Energy ◽  
Cross Flow ◽  
Wave Energy Converter ◽  
Energy Converter ◽  
And Performance

scholarly journals Model Test of Dual-Buoy Wave Energy Converter using Multi-resonance

2015 ◽  
Vol 29 (2) ◽  
pp. 191-198 ◽  
Author(s):  
Jeong-Rok Kim ◽  
Jong-Wu Hyeon ◽  
Hyeok-Jun Koh ◽  
Hyuck-Min Kweon ◽  
Il-Hyoung Cho
Keyword(s):  
Model Test ◽  
Wave Energy ◽  
Wave Energy Converter ◽  
Energy Converter

scholarly journals Scaling Orchestration in Physical Model Test of Oscillating Buoy Wave Energy Converter

2021 ◽  
Vol 8 ◽  
Author(s):  
Dongsheng Qiao ◽  
Guangning Zhi ◽  
Haizhi Liang ◽  
Dezhi Ning ◽  
Jun Yan ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Physical Model ◽  
Model Test ◽  
Wave Energy ◽  
Similarity Criterion ◽  
Wave Energy Converter ◽  
Physical Model Test ◽  
Energy Converter ◽  
Model Scale ◽  
Third Stage

The physical model test interlinks the concept design and sea trial during the commercial utilization of wave energy converter. Aiming at the oscillating buoy wave energy converter, the energy conversion principle is firstly decomposed. Then, the model scale requirement of fluid motion and corresponding hydrodynamic similarity criterion considered in the physical model test are introduced. Finally, the solution of scaling orchestration problem is proposed considering the overall model scale in different energy conversion processes. The hydrodynamic similarity criterion is selected based on the working mechanism of the energy-capturing body only in contact with water, and the model scale requirements during the other stages of energy conversion structure are determined by the main mechanical factors. The first-stage energy conversion of device is recommended to meet the Froude similarity requirements, while the second-stage and third-stage energy conversions only need to meet the power similarity requirements. The power scale ratio in the three energy conversions is recommended to be consistent with the Froude similarity, and there are no requirements of geometric shape of second-stage and third-stage energy conversions to meet the similarity criteria.

Hydrodynamic analysis of a novel wave energy converter: Hull Reservoir Wave Energy Converter (HRWEC)

2021 ◽  
Vol 170 ◽  
pp. 1020-1039
Author(s):  
S.D.G.S.P. Gunawardane ◽  
G.A.C.T. Bandara ◽  
Young-Ho Lee
Keyword(s):  
Wave Energy ◽  
Wave Energy Converter ◽  
Energy Converter ◽  
Hydrodynamic Analysis
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