Denmark has a long of history of strong renewable energy engineering and sustainability. From very early on, many of the most important wind energy developments were made by Danish engineers. Come with me while I take a road trip with me through Denmark's Jutland peninsula, which was home to much of the modern wind turbine's development over the last century. We will stop at a number of historic and modern wind turbines and talk about the design evolution that has occurred and some of the mechanical engineering concepts and design tradeoffs that have caused wind power to evolve in the way that it has.
The sites visited are:
00:56 Lyngmøllen - traditional windmill from 1876
02:48 Vindkraftværket Tvindkraft - built 1975-78 and the world's longest operating wind turbine
03:32 Lattice tower turbines from late 1980s to early 1990s
04:58 Stall regulated turbines from the 1990s
07:01 Danish national test centre for large wind turbines in Østerild (Det Nationale Testcenter for Store Vindmøller) featuring modern onshore and offshore turbines
09:55 Rønland offshore windfarm, installed 2003
Mechanical engineering, aeronautical engineering and physics concepts discussed include:
01:13 The difference between a wind turbine and a windmill
01:36 Lift vs drag type wind turbines
01:54 Poul La Cour's contribution to modern wind turbine design
04:12 Tower design tradeoffs - lattice vs tubular steel towers
05:54 Wind turbine power regulation - stall vs pitch regulation
07:38 Why are wind turbines getting so big?
10:34 Wind resources - why are towers getting taller and why are turbines being installed offshore
For wind energy theory I recommend Burton's "Wind Energy Handbook."
Available to buy from Amazon (affiliate link), or your university library probably has it!
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Video editing and animated intro by www.video-gestaltung.de
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