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In Sweden a helicopter sprays hot water on iced-up wind turbine blades.
Glaciated rotor blades are the scourge of wind turbine owners in cold climates. Alpine Helicopter in Constance has developed a new way to kick-start production when the ice forces the turbines stop: a helicopter that sprays hot water.
It takes us about 1.5 hours to process a sharp occurrence of icing wind turbines, says CEO Mats Widgren.
It takes us about 1.5 hours to process a sharp occurrence of icing wind turbines, says CEO Mats Widgren.
The water is heated over night using a truck equipped with a 260 kW oil burner. When morning dawns are 44 cubic meters of the 60-degree water in the tanks, and the helicopter can start running in the shuttle to the icy wind turbine.
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2 comments:
So how much energy does it take to keep that chopper in the air and how long does the turbine have to run to recoup it?
Mark - I don't know, but presumably subsidy makes it all feasible.
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