21 / 24
Notes:
Volume 4
Trends in Green Chemistry
ISSN: 2471-9889
Page 93
JOINT EVENT
Environmental Chemistry 2018 &
Green Technologies 2018
September 20-22, 2018
September 20-22, 2018 Berlin, Germany
&
7
th
Edition of International Conference on
Green Energy, Green Engineering and Technology
8
th
International Conference on
Environmental Chemistry and Engineering
Numerical and experimental studies on movable offshore wind turbine foundation
Ray-Yeng Yang
National Cheng Kung University, Taiwan
D
ue to the consideration of a great fleet of large ships needed for constructing offshore wind turbines not already been
established in Taiwan, one concept is currently developing a novel “float-out, sink and retrieve” offshore installation
method for offshore wind turbines. The concept is to construct the gravity base support structure for the wind turbine,
assemble the wind turbine and complete functionality testing at the dock, prior to towing the installation to location. The
proof-of-concept for this innovative movable type foundation was confirmed by conducting a series of interdisciplinary studies,
including numerical simulation and laboratory tests. Safety condition for the towing process of the movable foundation in
the sea site was investigated in the towing tank (150m x 8m x 4m) at the NCKU in advance. Then the stability during the
installation of the foundation and the dynamic response of the foundation after it is settled firmly were studied and investigated
by means of numerical simulation and small scale physical modeling tests. From further movable bed laboratory experiment,
the maximum scour depth around the foundation under wave and current action was also obtained. Thus this study furtherly
showed the concept has an added advantage that it will allow for retrieval or re-positioning of the foundation without the use
of heavy vessel or other specialist offshore installation vessels.
ryyang@mail.ncku.edu.twTrends in Green chem 2018, Volume 4
DOI: 10.21767/2471-9889-C2-012