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Special Issues
Sustainable Development and Utilization of Offshore Wave and Tidal Energy
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Sustainable Development and Utilization of Offshore Wave and Tidal Energy

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Marine Energy".

Deadline for manuscript submissions: closed (5 March 2024) | Viewed by 2204

Special Issue Editor

Prof. Dr. Jan Emblemsvåg

E-Mail Website
Guest Editor
Department of Ocean Operations and Civil Engineering, Norwegian University of Science and Technology, Ålesund, Norway
Interests: sustainability; energy; product and process design; lifecycle costing; lifecycle analysis and risks
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Wind power, solar photovoltaic power and modern bioenergy have gained substantial attention and traction as sustainable alternatives to traditional fossil-fuel-based energy sources. However, offshore wave and tidal energy have gained little attention in comparison. This lack of attention is partly due to the fact that these technologies have been very location specific, but the fact is that there is a large number of locations globally where these energy sources will make a solid contribution if developed properly. This Special Issue therefore aims at improving this situation.

One area of focus is the technological advancements in wave and tidal energy conversion devices. The performance of various types of wave energy converters (WECs) is evaluated under different operating conditions. Similarly, the design and optimization of different types of tidal turbines are extensively studied to maximize power generation and minimize costs. Another key aspect addressed in this Special Issue is the environmental impact assessment of offshore wave and tidal energy projects, including the potential effects on marine habitats and marine biology.

In conclusion, this Special Issue provides a comprehensive overview of the sustainable development and utilization of offshore wave and tidal energy. Continued research and innovation in this field are crucial for overcoming technical challenges and maximizing the potential of offshore wave and tidal energy as key contributors to renewable energy at suitable locations.

Prof. Dr. Jan Emblemsvåg
Guest Editor

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. Journal of Marine Science and Engineering 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 2600 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

  • wave energy
  • tidal energy
  • wave energy converter
  • tidal turbine
  • marine environment
  • environmental impact
  • levelized cost of energy

Published Papers (2 papers)

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Research

15 pages, 3789 KiB  
Article
The Potential of Tidal Energy Production in a Narrow Channel: The Gulf of Morbihan
by Jérôme Thiébot, Mouncef Sedrati and Sylvain Guillou
J. Mar. Sci. Eng. 2024, 12(3), 479; https://doi.org/10.3390/jmse12030479 - 12 Mar 2024
Viewed by 900
Abstract
The tidal currents of the Gulf of Morbihan reach up to 3.5 m/s within a narrow (200 m large) channel connecting the sea to the inner part of the gulf. In this study, a Telemac2D model validated with a large dataset of field [...] Read more.
The tidal currents of the Gulf of Morbihan reach up to 3.5 m/s within a narrow (200 m large) channel connecting the sea to the inner part of the gulf. In this study, a Telemac2D model validated with a large dataset of field measurements is used to assess the resources of the gulf. The results show that two sites have the potential to host up to 48 turbines (diameter of 8 m). If the entire width of the channel is occupied by turbines, significant increases in current speed are expected to occur on each side of the main channel. Simulations also show that flow changes differ between ebbing and flooding tides. During ebbing tide, the changes are limited in amplitude and remain localised within the channel. During flooding tide, the changes are more significant, especially in the vicinity of one of the two sites where the water passing through the site is flushed into a large and shallow basin. In this area, energy extraction significantly modifies the spatial distribution of the current velocities. We consider different scenarios of tidal energy extraction. The results show that flow perturbation can be significantly reduced using a lower density of turbines, that extracting tidal energy at one site slightly reduces the resource of the other, and that the deployment of two turbines (testing conditions) has a negligible effect on ambient current speeds. Full article
(This article belongs to the Special Issue Sustainable Development and Utilization of Offshore Wave and Tidal Energy)
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20 pages, 7305 KiB  
Article
Multibody Analysis of Wave Energy Converters and a Floating Platform in the Time Domain
by Dongeun Kim and Yoon Hyeok Bae
J. Mar. Sci. Eng. 2024, 12(2), 265; https://doi.org/10.3390/jmse12020265 - 1 Feb 2024
Cited by 1 | Viewed by 782
Abstract
Generally, new and renewable energy systems generate electricity by installing and operating multiple modules simultaneously. In the Republic of Korea, recent studies and developments have focused on asymmetric wave energy converters (hereafter referred to as rotors) suitable for marine environments off the western [...] Read more.
Generally, new and renewable energy systems generate electricity by installing and operating multiple modules simultaneously. In the Republic of Korea, recent studies and developments have focused on asymmetric wave energy converters (hereafter referred to as rotors) suitable for marine environments off the western coast of Jeju. These rotors are arranged on a large floating truss-structure platform and designed to harness electricity from the rotors’ pitch motion. However, when multiple rotors operate on a platform, their behavior diverges from that of a single module due to hydrodynamic interactions between them. Moreover, because the rotors are connected to the floating platform, their motion is influenced by the platform’s dynamics. In this study, a time-domain multibody motion equation was established to analyze changes in the behavioral characteristics of the rotors, both with and without a floating platform. The hydrostatic and hydrodynamic coefficients were derived in the frequency domain using WAMIT, a commercial code based on linear potential flow theory for three-dimensional diffraction/radiation analyses. The motion equation was then applied under regular and irregular wave conditions using OrcaFlex version 11.3, a marine systems design and analysis program. The resulting behaviors were compared to elucidate the influence of the platform and hydrodynamic interactions on the rotors’ performance. Full article
(This article belongs to the Special Issue Sustainable Development and Utilization of Offshore Wave and Tidal Energy)
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