Wednesday, January 20, 2016

Wind power in hot water


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.

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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Mark In Mayenne said...

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?

A K Haart said...

Mark - I don't know, but presumably subsidy makes it all feasible.