Special Issue "Offshore and Onshore Wave Energy Converters: Engineering and Environmental Features"

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

Deadline for manuscript submissions: 31 January 2021.

Special Issue Editors

Dr. Luca Cavallaro
Website
Guest Editor
Department of Civil and Architecture, University of Catania, Catania, Italy
Interests: coastal engineering; ocean engineering; coastal risk; physical modelling; wave energy converters; wave–structure interaction; computational fluid dynamic
Prof. Dr. Diego Vicinanza
Website SciProfiles
Guest Editor
Department of Engineering, Università degli Studi della Campania “Luigi Vanvitelli”, Aversa, Italy
Interests: coastal engineering; maritime structures; coastal morphodynamic; coastal defences; wave energy converters
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

In the last decade, extensive research has been carried out with the aim of designing new prototype devices that allow for the extraction of electricity from renewable energy sources, in order to contribute to a reduction of the use of non-renewable resources, and thereby to mitigate climate change impacts. Among the various renewable energy resources, energy extracted from sea waves is widely available, although it is currently poorly exploited. Furthermore, several technologies are being developed, but none of them seem to be very promising.

The purpose of this Special Issue is to publish the most exciting research with respect to the above subjects, and to provide a rapid turn-around time regarding reviewing and publishing, and to disseminate the articles freely for research, teaching, and reference purposes.

More specifically, high-quality papers regarding wave energy converter technologies related to the following topics are highy encouraged:

  • Hydrodynamic numerical modelling;
  • Experimental modelling and testing;
  • Design optimization;
  • Mooring modelling and design;
  • Power take-off modelling and design;
  • Levelized cost of energy analysis;
  • Resource assessment;
  • Environmental impacts;
  • Policy, legislation, and socio-economic impacts;
  • Case studies.

Dr. Luca Cavallaro
Prof. Diego Vicinanza
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 papers will be 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 1400 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 power
  • Ocean engineering
  • Wave energy conversion
  • Nonlinear hydrodynamics
  • Power takeoff
  • Moorings
  • Environmental impact

Published Papers (2 papers)

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Research

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Open AccessArticle
MPPT Control of Hydraulic Power Take-Off for Wave Energy Converter on Artificial Breakwater
J. Mar. Sci. Eng. 2020, 8(5), 304; https://doi.org/10.3390/jmse8050304 - 26 Apr 2020
Cited by 1
Abstract
Wave energy is a renewable energy source that is green, clean and has huge reserves. In order to develop wave energy resources, an oscillating buoy Wave Energy Converter (WEC) device based on the artificial breakwater is presented in this paper. In order to [...] Read more.
Wave energy is a renewable energy source that is green, clean and has huge reserves. In order to develop wave energy resources, an oscillating buoy Wave Energy Converter (WEC) device based on the artificial breakwater is presented in this paper. In order to effectively vent the gas in the hydraulic PTO and to improve the active control capability of the PTO system to guarantee the safety performance of the system under high sea conditions, a hydraulic PTO with an active control circuit is designed. Additionally, for the Power Take-Off (PTO) system, there is a optimal damping point under different sea conditions for PTO system, so the PTO can be controlled by the Maximum-Power-Point-Tracking (MPPT) control algorithms to improve the generated power of the system. At present, the MPPT control algorithms for wave energy are mainly used to control the load of generator. However, a fixed-load storage battery is used for the load of the generator in this paper. Additionally, an MPPT control taken at a hydraulic PTO system is executed to improve the power generated by hydraulic PTO under different sea conditions effectively in this paper. The MPPT control based on the hydraulic system is conducted by controlling the displacement of hydraulic motor to achieve the optimal damping point tracking control. The control flow of the MPPT algorithm is provided. The variable step hill-climbing method is used in MPPT control algorithm in which the big step can reduce the time of tracking and the small step can increase the accuracy of MPPT control algorithm. Due to the slow stability of the hydraulic system, a filter method for hydraulic PTO power is used. In addition, the hydraulic PTO system and MPPT control are verified to be feasible with the simulation. Additionally, MPPT control based on hydraulic variable motor is easier to carry out in practical applications than the traditional control of resistance. Finally, the simulation results demonstrate that it is an effective power control strategy for hydraulic PTO system to improve the generated power. Full article
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Review

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Open AccessReview
Marine Biofouling: A European Database for the Marine Renewable Energy Sector
J. Mar. Sci. Eng. 2020, 8(7), 495; https://doi.org/10.3390/jmse8070495 - 05 Jul 2020
Abstract
Biofouling is a major problem shared among all maritime sectors employing submerged structures where it leads to substantially increased costs and lowered operational lifespans if poorly addressed. Insight into the ongoing processes at the relevant marine locations is key to effective management of [...] Read more.
Biofouling is a major problem shared among all maritime sectors employing submerged structures where it leads to substantially increased costs and lowered operational lifespans if poorly addressed. Insight into the ongoing processes at the relevant marine locations is key to effective management of biofouling. Of specific concern for the marine renewable energy (MRE) sector is the fact that information on biofouling composition and magnitude across geographies is dispersed throughout published papers and consulting reports. To enable rapid access to relevant key biofouling events the present work describes a European biofouling database to support the MRE sector and other maritime industries. The database compiles in one document qualitative and quantitative data for challenging biofouling groups, including non-native species associated with MRE and related marine equipment, in different European Ecoregions. It provides information on the occurrence of fouling species and data on key biofouling parameters, such as biofouling thickness and weight. The database aims to aid the MRE sector and offshore industries in understanding which biofouling communities their devices are more susceptible to at a given site, to facilitate informed decisions. In addition, the biofouling mapping is useful for the development of biosecurity risk management plans as well as academic research. Full article
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