Search results for "VDP::Teknologi: 500::Marin teknologi: 580::Offshoreteknologi: 581"
showing 3 items of 3 documents
Design optimisation of a funnel-shaped floating dock for installation of offshore wind turbines
2020
Master's thesis in Civil and structural engineering (BYG508) Offshore wind power is a rapidly growing renewable energy industry and has a tremendous potentialof further expansion. Installation of offshore wind turbines is a challenging task. Floating windturbines are believed to be cost-effective solutions for deep water installation. This technologyis extremely sensitive to wave excitation during the installation process. As deep-water windfarms often are located in areas exposed to rough weather, innovative methods of installation areinvestigated. The floating dock concept has been proposed in recent studies in order to expand theweather window for installing spar floating wind turbines. …
Design and Analysis of a Novel Semi-submersible Floater Supporting a 5MW Wind Turbine
2021
Master's thesis in Civil and structural engineering (BYG508) The wind industry has been rapidly evolving in recent years, moving from onshore to offshorelocations. For deep waters, floating wind turbines are more cost-effective than bottom-fixed ones,and semi-submersible floating wind turbines are especially advantageous compared to other con-cepts because of their relatively small draft and good towability for installation. This masterthesis focuses on preliminary design and analysis of a novel semi-submersible floating wind turbinesupported by a twin fish floater and positioned by a single-point mooring system. Hydrostaticand hydrodynamic analysis are first carried out to select a floater…
Foundations of offshore wind turbines: A review
2019
Abstract Offshore wind is a source of clean, renewable energy of great potential value to the power industry in the context of a low carbon society. Rapid development of offshore wind energy depends on a good understanding of technical issues related to offshore wind turbines, which is spurring ongoing research and development programmes. Foundations of offshore wind turbines present one of the main challenges in offshore wind turbine design. This paper reviews the present state of knowledge concerning geotechnical and structural issues affecting foundation types under consideration for the support structures of offshore wind turbines, and provides recommendations for future research and de…