Hydrodynamic analysis of one-way energy capture by an oscillating water column wave energy device

Joensen, Bárður; Bingham, Harry B.; Read, Robert; Nielsen, Kim; Trevino, Jokin Brito

doi:10.1016/j.egyr.2023.04.052

Cited by 7 publications

(4 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fundamentals of linear potential flow theory are covered in detail by, for example, the classic textbooks of Newman (2017) and Falnes (2002). The specific application of the theory to OWCtype WECs described here follows closely the presentations found in Bingham et al (2021) and Joensen et al (2023).…”

Section: Weakly Non-linear Potential Flow Theorymentioning

confidence: 94%

“…The experimental measurements are briefly described here, while more complete details can be found in Joensen et al (2023); Trevino (2020). The dimensions and layout of Flume 1 of the DTU hydraulics laboratory are shown in Fig.…”

Section: Experimental Measurementsmentioning

confidence: 99%

“…where the length along a wave crest, L, is taken to be the chamber length along the x-axis. As discussed in more detail in Joensen et al (2023), it was determined to be generally more reliable in the experimental measurements to compute Q from p using Eq. ( 11), with C d = 0.7 since evaluating the flux from only two wave gauge signals can be quite error-prone.…”

Section: Absorbed Powermentioning

confidence: 99%

“…The experimental measurements used in this study were conducted at the Technical University of Denmark (DTU) and are reported in Joensen et al (2023); Trevino (2020). The study was blind, in the sense that the participants did not have access to the measurements until after their numerical calculations were submitted.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Ocean Energy Systems Wave Energy Modeling Task 10.4: Benchmark Study of the DTU OWC Chamber with One-Way Absorption

Bingham,

Joensen,

Read

et al. 2024

Preprint

View full text Add to dashboard Cite

This paper reports on a new milestone under the "OES Task 10Numerical modelling and verification", established to provide numerical modeling guidelines for wave energy converters. The task has been initiated by the International Energy Agency Technology Collaboration Programme for Ocean Energy Systems (OES). This study complements the studies presented in Bingham et al (2021) and Wendt et al (2019). Here we focus on small-scale (1:50) measurements of a single, Oscillating Water Column chamber mounted sideways in a long flume. The geometry of the OWC chamber is extracted from a barge-like, attenuator-type floating concept "KNSwing" with 40 chambers targeted for deployment in the Danish part of the North Sea. In addition to the traditional two-way energy extraction from an OWC, we also consider a one-way energy extraction of power with passive venting and compare chamber response, pressures and total absorbed energy between the two methods. A blind study was established for the numerical modeling, with participants applying several implementations of weakly-nonlinear potential flow theory and commercial Navier-Stokes solvers (CFD). Both compressible and incompressible models were used for the air phase.

show abstract

Section: Weakly Non-linear Potential Flow Theorymentioning

confidence: 94%

Section: Experimental Measurementsmentioning

confidence: 99%

Section: Absorbed Powermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ocean Energy Systems Wave Energy Modeling Task 10.4: Benchmark Study of the DTU OWC Chamber with One-Way Absorption

Bingham,

Joensen,

Read

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Oscillating body wave energy conversion efficiency based on Simulink simulation training

Yin,

Lu,

et al. 2024

Energy Science & Engineering

View full text Add to dashboard Cite

With the development of the economy and society, we are faced with the dual challenges of energy demands and environmental pollution. As one of the important marine renewable energies, wave energy is widely distributed and abundant, and has considerable applications in various fields. Oscillating body wave energy converter (WEC) is most popular among WECs; its energy conversion efficiency is thus one of the key issues for practical large‐scale applications. This article establishes a new model of the float and vibrator under different motion conditions, conducts simulation training, and then solves the displacement and velocity at different times, and finally optimizes the maximum output power and optimal damping coefficient. Simulink calculation is one of the most effective tools including neural networks, which allows us to achieve intelligent training and simulation. The obtained data imply that the maximum output power could be 8.102 W when the corresponding linear damping is 21,000 N s/m and the rotation damping is 95,000 N s/m. The article takes into account the pitching motion of the float, providing a more realistic model and obtaining optimal power absorbing efficiency. The obtained results could be the potential reference data in practically setting up the wave energy conversion systems.

show abstract

Hydrodynamic and power conversion performance for linear and triangular dual-buoy wave energy converter array

Zhou,

Liu,

Jin

et al. 2024

Meccanica

View full text Add to dashboard Cite

Hydrodynamic analysis of one-way energy capture by an oscillating water column wave energy device

Cited by 7 publications

References 24 publications

Ocean Energy Systems Wave Energy Modeling Task 10.4: Benchmark Study of the DTU OWC Chamber with One-Way Absorption

Ocean Energy Systems Wave Energy Modeling Task 10.4: Benchmark Study of the DTU OWC Chamber with One-Way Absorption

Oscillating body wave energy conversion efficiency based on Simulink simulation training

Hydrodynamic and power conversion performance for linear and triangular dual-buoy wave energy converter array

Contact Info

Product

Resources

About