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Comparison of mooring solutions and array systems for point absorbing wave energy devices
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
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2018 (English)In: Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, 2018Conference paper, Published paper (Refereed)
Abstract [en]

Most of the ocean energy technologies are considered to be ina pre-commercial phase and need technical development. Thisstudy focuses on design of mooring solutions and comparesarray systems of a specific floating point-absorbing waveenergy converter (WEC) developed by the companyWaves4Power. A full-scale prototype of the WEC is installedin Runde (Norway) where it is moored with three polyestermooring lines, each having one floater and one gravity anchor.Based on this reference installation, the method of systemsengineering was used to propose twenty-two conceptualmooring solutions for different array systems. They werecompared and reduced to four top concepts in a systematicelimination procedure using Pugh and Kesselring matrices. Thetop concepts were assessed in detail by means of LCOE(levelised cost of energy), LCA (life cycle analysis) and riskanalyses. The fatigue life of the mooring lines and the energycapture were calculated using results obtained from coupledhydrodynamic and structure response analyses in the DNV-GLDeepC software. Two final concepts were proposed for thewater depths 75 and 200 m.

Place, publisher, year, edition, pages
2018.
Keywords [en]
Array system, Coupled analysis, Mooring solution, Systems engineering, Wave energy, Digital arithmetic, Life cycle, Mooring, Mooring cables, Ocean engineering, Oceanography, Offshore oil well production, Wave energy conversion, Array systems, Floating points, Levelised cost of energies, Life cycle analysis, Structure response, Technical development, Arctic engineering
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-35923DOI: 10.1115/OMAE2018-77062Scopus ID: 2-s2.0-85055452499ISBN: 9780791851326 (print)OAI: oai:DiVA.org:ri-35923DiVA, id: diva2:1261244
Conference
ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018, 17 June 2018 through 22 June 2018. Madrid, Spain.
Available from: 2018-11-06 Created: 2018-11-06 Last updated: 2018-11-19Bibliographically approved

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Johnson, Erland

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
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  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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