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Processes
Special Issues
Design and Utilization of Wind Turbines/Wave Energy Convertors
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Design and Utilization of Wind Turbines/Wave Energy Convertors

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: 31 March 2025 | Viewed by 2133

Special Issue Editors

Dr. Hao Chen

E-Mail Website
Guest Editor
Department of Marine Technology, Newcastle University in Singapore, Singapore, Singapore
Interests: wave–structure interaction; marine renewable energy; offshore aquaculture; wave overtopping
Dr. Deping Cao

E-Mail Website
Guest Editor
Department of Hydraulic Engineering, Tongji University, Shanghai 200093, China
Interests: wave–structure interaction; wave overtopping; wave energy convertors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

As the world continues to grapple with the challenges of climate change and the need to transition away from fossil fuels, renewable energy sources like wind and wave power have emerged as crucial solutions. The design and utilization of wind turbines and wave energy converters play a vital role in enabling the efficient capture and conversion of these abundant and natural resources into usable electricity.

This Special Issue aims to explore innovative technologies and advancements in harnessing the power of wind and ocean waves to generate clean and sustainable energy. We shall delve into the principles, engineering, and applications of wind turbines and wave energy converters. With insights from leading researchers, industry experts, and policymakers, we will explore the latest developments, challenges, and solutions with the potential to maximize the effectiveness and impact of these technologies.

The scope of this Special Issue includes, but is not limited to, the following topics:

  • The design and optimization of wind turbines for various geographical locations;
  • The recent advancements in turbine blade materials, control systems, and grid integration;
  • The development and utilization of wave energy converters;
  • Evaluation of different device configurations, connected electrical networks, and effective energy storage solutions;
  • Other related topics

We will showcase cutting-edge research, providing case studies of successful projects and highlighting real-world applications that demonstrate the feasibility and benefits of wind and wave energy conversion. Moreover, we will address relevant environmental considerations, resource assessment techniques, and sustainability aspects to ensure responsible and environmentally friendly implementation.

We hope that this Special Issue will inspire readers to explore the vast potential of wind and wave energy, fostering further innovation and collaboration in this vital field. Together, we can pave the way towards a more sustainable and greener future.

Dr. Hao Chen
Dr. Deping Cao
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Processes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • design optimization
  • experiment
  • numerical modelling
  • wind turbines
  • wave energy converters
  • energy storage solutions
  • device configurations
  • grid integration

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Published Papers (2 papers)

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Research

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23 pages, 5752 KiB  
Article
Geometric Evaluation of an Oscillating Water Column Wave Energy Converter Device Using Representative Regular Waves of the Sea State Found in Tramandaí, Brazil
by Ana Paula Giussani Mocellin, Maycon da Silveira Paiva, Elizaldo Domingues dos Santos, Luiz Alberto Oliveira Rocha, Liércio André Isoldi, Juliana Sartori Ziebell and Bianca Neves Machado
Processes 2024, 12(11), 2352; https://doi.org/10.3390/pr12112352 - 26 Oct 2024
Viewed by 528
Abstract
Aiming to contribute to studies related to the generation of electrical energy from renewable sources, this study carried out a geometric investigation of an oscillating water column (OWC) wave energy converter (WEC) device. The structure of this device consists of a hydropneumatic chamber [...] Read more.
Aiming to contribute to studies related to the generation of electrical energy from renewable sources, this study carried out a geometric investigation of an oscillating water column (OWC) wave energy converter (WEC) device. The structure of this device consists of a hydropneumatic chamber and an air duct, where a turbine is coupled to an electrical energy generator. When waves hit the device, the air inside it is pressurized and depressurized, causing the air to flow through the duct, activating the turbine. In this sense, the present study used the constructal design method to evaluate the influence of the ratio between the height and length of the hydropneumatic chamber (H1/L) on the mean available hydropneumatic power (PH(RMS)). Fluent software was used to perform numerical simulations of representative regular waves from the sea state in the municipality of Tramandaí, southern Brazil, impacting the OWC. Thus, it was possible to identify the geometry that maximized the performance of the OWC WEC, with (H1/L)O=0.3430, yielding PH(RMS)=56.66 W. In contrast, the worst geometry was obtained with H1/L=0.1985, where PH(RMS)=28.19 W. Therefore, the best case is 101% more efficient than the worst one. Full article
(This article belongs to the Special Issue Design and Utilization of Wind Turbines/Wave Energy Convertors)
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Review

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18 pages, 1713 KiB  
Review
Empirical Predictions on Wave Overtopping for Overtopping Wave Energy Converters: A Systematic Review
by Deping Cao, Jie He and Hao Chen
Processes 2024, 12(9), 1940; https://doi.org/10.3390/pr12091940 - 10 Sep 2024
Viewed by 719
Abstract
Over the past three decades, the development and testing of various overtopping wave energy converters (OWECs) have highlighted the importance of accurate wave run-up and overtopping predictions on those devices. This study systematically reviews the empirical formulas traditionally used for predicting overtopping across [...] Read more.
Over the past three decades, the development and testing of various overtopping wave energy converters (OWECs) have highlighted the importance of accurate wave run-up and overtopping predictions on those devices. This study systematically reviews the empirical formulas traditionally used for predicting overtopping across different types of breakwaters by assessing their strengths, limitations, and applicability to OWECs. This provides a foundation for future research and development in OWECs. Key findings reveal that empirical formulas for conventional breakwaters can be categorized as mild or steep slopes and vertical structures based on the angle of the slope. For the same relative crest freeboards, the dimensionless average overtopping discharge of mild slopes is larger than that of vertical structures. However, the formula features predictions within a similar range for small relative crest freeboards. The empirical formulas for predicting overtopping in fixed and floating OWECs are modified from the predictors developed for conventional breakwaters with smooth, impermeable and linear slopes. Different correction coefficients are introduced to account for the effects of limited draft, inclination angle, and low relative freeboard. The empirical models for floating OWECs, particularly the Wave Dragon model, have been refined through prototype testing to account for the unique 3D structural reflector’s influence and dynamic wave interactions. Full article
(This article belongs to the Special Issue Design and Utilization of Wind Turbines/Wave Energy Convertors)
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