Civil Engineering Reference
In-Depth Information
Chapter 9
Appendix II: Addition to WEGA Cruise and
Result Presentation
9.1 WEGA Cruise 141
9.1.1
Impressions of WEGA Cruise 141
Due to security instructions, offshore wind turbines cannot be easily observed from
close range. With the exception of people involved in this wind business, nobody
else has really the opportunity to visit such an offshore wind farm. Indeed, there
exist some tours, for example, from Helgoland going close to the German
s test
wind park
alpha ventus
. To get a feeling of the dimension of wind turbines, here,
some pictures photographed during the “WEGA Cruise in May 2013” helps to see
what happened outside of the North Sea. It is impressive how big, even smaller,
offshore wind turbines are, compared to onshore wind turbines, which have a rotor
diameter of 200 m and may have more in the future. On the other hand, it shows a
proud technique, designed for more than 15 years of challenges against salty water
and air, gears, and high swell.
At this point, I would like to take again the opportunity to thank the BSH for its
special support.
Figure
9.1
shows VWFS WEGA; Figs.
9.2
,
9.3
,
9.4
, and
9.5
illustrate the
alpha
ventus
with wind turbines, research platform, Fino1, and relay station.
'
9.1.2 CTD Probe
Figure
9.6
shows CTD (conductivity, temperature, depth) measuring station at
research vessel WEGA with winch and CTD probe and sensing elements. A CTD
probe determines conductivity, temperature, and pressure of water, and based on
that, salinity and density can be calculated.
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