Month: January 2020
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Slingers & trenching machines in wind farms: a guest post by Christopher James
After posting this article on Slingers I have been contacted by Christopher James, an expert on the topic with an exceptional amount of real world experience. He has been so kind to share is knowledge on the theme and I am thankful for that. I am sharing it with you in the very comprehensive post below…
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Can a rotor be smart? Passive optimization systems
The spectacular growth of the dimension of the wind turbine has led to the introduction of several interesting technical solutions. Different type of towers (concrete, hybrid, lattice, self-erecting, etc.) and new technical solutions for the foundations appeared in the last decade, trying to have the lowest possible cost of energy. The rotor of the turbine…
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Second life: the destiny of turbine foundations after decommissioning
I have discussed in another article the challenges associated with the disposal of the blades when a wind farm is decommissioned or repowered. But what happen to the foundations? The destiny of a foundation will depends on local regulations, on the environmental requirements that are normally given with building permits and on the wish of…
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Good vibrations: wind induced resonance and turbines oscillations
Have you ever wondered why sometimes the wind turbines (and other similar tall structure) sometime vibrate? Under some conditions the wind blowing on the tower create vortices. These vortices appears regularly on both sides of the tower, creating low pressure zones first on one side and then in the other. For these reason the tower…