Design of mooring solutions and array systems for point absorbing wave energy devices – methodology and application
Artikel i vetenskaplig tidskrift, 2020

Most of the ocean energy technologies are considered to be in a pre-commercial phase and need technical development. This study focuses on design of mooring solutions and compares array systems of a specific floating point-absorbing wave energy converter (WEC) developed by the company Waves4Power. A full-scale prototype of the WEC is installed in Runde (Norway) where it is moored with three polyester mooring lines, each having one floater and one gravity anchor. Based on this reference installation, the method of systems engineering was used to propose twenty-two conceptual mooring solutions for different array systems. They were compared and reduced to four top concepts in a systematic elimination procedure using Pugh and Kesselring matrices. The top concepts were assessed in detail by means of LCOE (levelised cost of energy), LCA (life cycle analysis) and risk analyses. The fatigue life of the mooring lines and the energy capture were calculated using results obtained from coupled hydrodynamic and structure response analyses in the DNV-GL DeepC software. Two final concepts were proposed for the water depths 75 and 200 m.

coupled analysis

mooring solution

array system

systems engineering

wave energy

Författare

Jonas Ringsberg

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Hanna Jansson

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Martin Örgård

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Shun-Han Yang

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Erland Johnson

RISE Research Institutes of Sweden

Journal of Offshore Mechanics and Arctic Engineering

0892-7219 (ISSN) 1528-896X (eISSN)

Vol. 142 3 031101

ELASTMOOR - Elastiska förankringssystem för vågenergiomvandlare

Energimyndigheten (43995-1), 2017-04-01 -- 2020-05-31.

Simuleringsmodell för drift- och underhållsstrategi av flytande vågkraftverk – analys av utmattning, nötning, och inverkan av biofouling för effektiv och lönsam energiutvinning

Energimyndigheten (P36357-2), 2016-06-01 -- 2018-05-31.

Ämneskategorier

Maskinteknik

Materialteknik

Marin teknik

Drivkrafter

Hållbar utveckling

Innovation och entreprenörskap

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

DOI

10.1115/1.4045370

Mer information

Senast uppdaterat

2021-03-24