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Policy and Technology for Ocean Renewable Energy

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A3: Wind, Wave and Tidal Energy".

Deadline for manuscript submissions: closed (15 September 2021) | Viewed by 3158

Special Issue Editors

Coastal Development and Ocean Energy Research Center, Korea Institute of Ocean Science and Technology, 385 Haeyang-ro, Yeongdo-gu, Busan 49111, Korea
Interests: ocean renewable energy; offshore wind energy; technical standardization

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Co-Guest Editor
Offshore Plant and Marine Energy Research Division, Korea Research Institue of Ships and Ocean Engineering, 32 Yuseong-daero 1312 beon-gil, Yuseong-gu, Daejeon 34103, Korea
Interests: ocean renewable energy; performance assessment for wave energy converters in open sea; vortex-induced vibration energy extraction

Special Issue Information

Dear Colleagues,

Ocean energy systems have significantly improved in the past decade through the commissioning of the world’s largest grid-connected tidal barrage in Sihwa Lake, South Korea, and wave power plants and Mutriku, Spain, in addition to a number of wave and tidal energy converters deployed in open-sea waters for testing, and finally the commercialization scale MeyGen Project 1A with 6MW facilities in Scotland, UK. The cumulative energy produced from wave and tidal energy has increased from less than 5 GWh in 2009 to approximately 45 GWh in 2019. Many advanced technologies are being developed, including floating-type tidal energy converters, such as Orbital O2, Minesto’s Deep Green, and Magallanes Renovables’ ATIR, in addition to wave energy converters, such as Marine Power Systems’ WaveSub. To promote the commercialization of ocean energy systems, the International Electrotechnical Committee is developing international standards on ocean energy systems through its IEC TS 62600 series. Many countries consider ocean energy systems to be one of the promising paths in meeting the decarbonization target, fostering economic growth, and creating employment opportunities. Significant incentive policies are being given to the developers, such as the Strategic Energy Technology (SET) Plan and the Blue Growth Strategy in Europe, Renewable Purchase Obligations and feed-in tariff in Asia, the new R&D initiative Powering the Blue Economy in the US, Marine Renewable Act in Canada, and so on. These technical developments and supporting policies are essential for the commercialization of ocean energy systems. This special issue focuses on bringing together innovative technological developments, technical standardization, and national policies in the field of ocean energy systems.

Potential topics include, but are not limited to:

  • Resource assessment;
  • Wind Energy;
  • Wave Energy;
  • Tidal Energy;
  • Ocean Thermal Energy;
  • Ocean Energy Devices;
  • Multiuse Platforms;
  • Economic assessment;
  • Installation and Maintenance planning;
  • Condition based Maintenance;
  • Environmental impact and appraisal;
  • Technical standardization;
  • Ocean Renewable Energy Policy;
  • Science supporting the success of the marine energy industry;
  • Economical, social, legal and political aspects of ocean energy;

Dr. Jin-Hak Yi
Dr. Jong-Su Choi
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. Energies is an international peer-reviewed open access semimonthly 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

  • Resource assessment
  • Wind Energy
  • Wave Energy
  • Tidal Energy
  • Ocean Thermal Energy
  • Ocean Energy Devices
  • Multiuse Platforms
  • Economic assessment
  • Installation and Maintenance planning
  • Condition based Maintenance
  • Environmental impact and appraisal
  • Technical standardization
  • Ocean Renewable Energy Policy
  • Science supporting the success of the marine energy industry
  • Economical, social, legal and political aspects of ocean energy

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Published Papers (1 paper)

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Research

12 pages, 5426 KiB  
Article
Study on Optimum Power Take-Off Torque of an Asymmetric Wave Energy Converter in Western Sea of Jeju Island
by Haeng Sik Ko, Sangho Kim and Yoon Hyeok Bae
Energies 2021, 14(5), 1449; https://doi.org/10.3390/en14051449 - 6 Mar 2021
Cited by 5 | Viewed by 2155
Abstract
This study primarily investigates an optimum energy conversion efficiency of asymmetric wave energy converter (WEC). A power take-off (PTO) system that provides a constant load torque opposite to pitch motion was implemented. Incident wave conditions were selected based on the measured data in [...] Read more.
This study primarily investigates an optimum energy conversion efficiency of asymmetric wave energy converter (WEC). A power take-off (PTO) system that provides a constant load torque opposite to pitch motion was implemented. Incident wave conditions were selected based on the measured data in the western sea of Jeju Island, South Korea. An optimum torque was calculated by comparing the time-averaged extracted power with various PTO load torque. InterDyMFoam solver based on Reynolds-averaged Navier-Stokes (RANS) equations were used in an OpenFOAM v4.0 framework—an open-source computational fluid dynamics model—against the experimental results derived from the wave flume. The upward pitch excursion was induced by wave force due to the asymmetric WEC characteristics; however, the downward pitch excursion depends on its weight. Numerically, the PTO torque was only loaded in uni-direction against the upward pitch motion. Moreover, the optimum PTO torque was estimated by comparing the time-averaged extracted power. Finally, the optimum PTO torque was evaluated by an irregular wave as a function of significant wave height. The optimum PTO provides design information about the asymmetric wave energy converter to improve energy conversion efficiency. Full article
(This article belongs to the Special Issue Policy and Technology for Ocean Renewable Energy)
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