Experimental investigation of a dual-pontoon WEC-type breakwater with a hydraulic-pneumatic complementary power take-off system

Article Engineering, Marine

Recent advances in wave energy conversion systems: From wave theory to devices and control strategies

Daniel Gallutia et al.

Summary: This paper provides an overview of wave energy conversion, discussing its advantages, challenges, devices, array performance, and control methods.

OCEAN ENGINEERING (2022)

添加到收藏夹

Article Green & Sustainable Science & Technology

Hydrodynamic characteristics of a hybrid oscillating water column-oscillating buoy wave energy converter integrated into a π-type floating breakwater

Yong Cheng et al.

Summary: The study proposes a multi-purpose solution by combining multiple types of wave energy converters and integrating them into marine platforms, which can reduce the cost of wave energy conversion. The proposed concept, which deploys an oscillating buoy device inside the chamber of an oscillating water column (OWC) WEC integrated into a floating breakwater, shows a beneficial impact on both wave energy conversion and transmitted wave attenuation according to simulation results.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2022)

添加到收藏夹

Article Green & Sustainable Science & Technology

The effect of turbine characteristics on the thermodynamics and compression process of a simple OWC device

A. Molina et al.

Summary: This paper studies the influence of turbine characteristics on the thermodynamic process inside the Oscillating Water Column (OWC). Wind tunnel tests reveal the importance of turbine characteristics in affecting the power output of the OWC device.

RENEWABLE ENERGY (2022)

添加到收藏夹

Article Green & Sustainable Science & Technology

A theoretical model for an integrated wave energy extraction system consisting of a heaving buoy and a perforated wall

Yuhan Wang et al.

Summary: This study investigates an integrated wave energy extraction (IWEE) system consisting of a heaving buoy and a perforated wall using the linear potential flow theory. Results show that the introduction of the perforated wall increases the maximum capture width ratio of the buoy, reduces the transmitted coefficient, and generates a smaller reflection coefficient. The buoy also experiences a smaller horizontal wave force compared to the system with a solid rear wall. The efficiency of wave capture and wave attenuation performance can be enhanced by adjusting the geometrical parameters. Furthermore, the proposed IWEE system shows a much greater capacity for wave energy capture and dissipation compared to an isolated perforated wall.

RENEWABLE ENERGY (2022)

添加到收藏夹

Article Engineering, Civil

Experimental and numerical investigation of WEC-type floating breakwaters: A single-pontoon oscillating buoy and a dual-pontoon oscillating water column

Yong Cheng et al.

Summary: This study evaluates the hydrodynamic performances of an oscillating buoy (OB) type single-pontoon floating breakwater (SPFB) and an oscillating water column (OWC) type dual-pontoon floating breakwater (DPFB) and compares them comprehensively. It is found that the wave attenuation and energy conversion of the OWC-type DPFB are better than those of the OB-type SPFB. Strong wave nonlinearity can result in the reduction of energy extraction.

COASTAL ENGINEERING (2022)

添加到收藏夹

Article Green & Sustainable Science & Technology

Experimental and numerical analysis of a hybrid WEC-breakwater system combining an oscillating water column and an oscillating buoy

Yong Cheng et al.

Summary: In this study, a hybrid WEC system combining an Oscillating Water Column (OWC) and an Oscillating Buoy (OB) was designed as a floating breakwater. Physical experiments were conducted to understand the working principle and the results showed that the hybrid system had higher energy conversion and better wave attenuation compared to the isolated devices.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2022)

添加到收藏夹

Article Green & Sustainable Science & Technology

Wave power extraction from a hybrid oscillating water column-oscillating buoy wave energy converter

Lin Cui et al.

Summary: This paper introduces a hybrid wave energy converter OWCOB, which combines oscillating water column and oscillating buoy to capture wave energy. By establishing an analytical model and conducting sensitivity analysis, it is found that OWCOB outperforms standalone OWCs and OBs, particularly in terms of frequency bandwidth for wave power capture.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

添加到收藏夹

Article Green & Sustainable Science & Technology

Experimental investigation on the hydrodynamic performance of a multi-chamber OWC-breakwater

Xuanlie Zhao et al.

Summary: This paper investigated the hydrodynamic performance of single, dual, and triple-chamber OWC-breakwaters, with findings showing that the multi-chamber scheme improved wave power extraction characteristics and wave attenuation performance in longer waves. Wave steepness was found to be important for evaluating the performance of the multiple-chamber OWC-breakwater device.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

添加到收藏夹

Article Green & Sustainable Science & Technology

Hydrodynamics of an oscillating water column WEC - Breakwater integrated system with a pitching front-wall

Baoming Guo et al.

Summary: An analytical model was developed to study the hydrodynamic performance of a novel oscillating water column (OWC) wave energy converter (WEC)-bottom mounted breakwater integrated system, showing a significant improvement in energy conversion efficiency bandwidth under variable wave conditions.

RENEWABLE ENERGY (2021)

添加到收藏夹

Article Energy & Fuels

Geometric optimisation of wave energy conversion devices: A survey

Bingyong Guo et al.

Summary: Wave energy technology is facing challenges of lack of systematic optimization, diversification of efforts, and limitations in progress.

APPLIED ENERGY (2021)

添加到收藏夹

Article Engineering, Mechanical

Numerical analysis of the hydrodynamic scaling effects for the Wavestar wave energy converter

Christian Windt et al.

Summary: Scaled model tests are important in the development of WECs, with numerical wave tanks providing tools to overcome scaling effects seen in physical wave tanks. This study investigated hydrodynamic scaling effects for a heaving buoy WEC, showing significant scaling effects on the viscous component of hydrodynamic loads but relatively little impact on system dynamics and total loads.

JOURNAL OF FLUIDS AND STRUCTURES (2021)

添加到收藏夹

Article Engineering, Marine