Articles filed under Icing from USA

Iowa State study quantifies how much ice buildup affects wind turbines

What he found there — using drones to photograph blades after up to 30 hours of exposure to cold and wet conditions similar to those Texas faced — was that ice almost a foot thick built up near the tips of blades and reduced power production up to 80%. Hu explained that ice can negatively affect a wind turbine in more than one way. 
7 Mar 2021

Field study shows icing can cost wind turbines up to 80% of power production

That disrupts blade aerodynamics. That disrupts the balance of the entire turbine. And that can disrupt energy production by up to 80 percent, according to a recently published field study led by Hui Hu, Iowa State University's Martin C. Jischke Professor in Aerospace Engineering and director of the university's Aircraft Icing Physics and Anti-/De-icing Technology Laboratory.
4 Mar 2021

Commissioners again discuss wind tower ice sling

Wilcox, who has raised concerns before about wind tower farms in the county, said more needs to be done to address ice sling, suggesting the commissioners implement a fine to be assessed if towers where ice sling is occurring and landing on county roads. She said the safety of county residents is in question on county roadways when such conditions exist.
16 Jan 2020

Iowa State researchers seek solution for icy wind turbine blades

Technologies exist that can be built into the turbine. Although they are used in Canada, Denmark and Sweden, Hu said the U.S. wind industry has found them to be cost-prohibitive.... blades can incorporate a material that conducts electricity that can prevent icing by warming the blade. He said the cost for the power amounts to roughly 5% of the energy a turbine might typically produce.
30 Oct 2019

Iowa State researchers seek solution for icy wind turbine blades

Technologies exist that can be built into the turbine. Although they are used in Canada, Denmark and Sweden, Hu said the U.S. wind industry has found them to be cost-prohibitive.... blades can incorporate a material that conducts electricity that can prevent icing by warming the blade. He said the cost for the power amounts to roughly 5% of the energy a turbine might typically produce.
30 Oct 2019

Falling ice from wind turbine worries family near proposed project

Days after several Freeborn County wind turbines had to be shut down after a chunk of ice fell off a blade and landed on a passing semi truck, a family whose home lies within feet of the proposed Freeborn Wind Farm project said they're concerned about something similar happening at their home. ..."I'm sorry but [...] there's no amount of money that's enough comfort for my kids being put in harm's way," he said.
26 Feb 2018

Falling ice from wind turbine worries family near proposed project

Days after several Freeborn County wind turbines had to be shut down after a chunk of ice fell off a blade and landed on a passing semi truck, a family whose home lies within feet of the proposed Freeborn Wind Farm project said they're concerned about something similar happening at their home. ..."I'm sorry but [...] there's no amount of money that's enough comfort for my kids being put in harm's way," he said.
26 Feb 2018

Expanding Balsams ski resort: money, jobs and a regulatory challenge

Using an industry rule of thumb, the setback for turbines likes those in the North Country would be about 800 feet, says Rene Cattin, a Swiss researcher who studies wind turbines in cold weather. But, Cattin said, his research shows that ice isn’t thrown more than about 500 feet. However, there are safety issues beyond ice throw, issues that could occur year-round.
16 May 2014

Ice-Tossing Turbines: Myth or Hazard?

The wind industry concedes that, as with all tall things (buildings, for example, or trees), ice and snow can build up and, eventually, fall down, creating a hazard to people and structures below. But the industry denies that "ice-throwing" - another concern surrounding wind power - is a problem. ...But a 2006 publication by G.E. Energy, a maker of large wind turbines, warns that "rotating turbine blades may propel ice fragments some distance from the turbine - up to several hundred meters if conditions are right."
11 Dec 2008

https://www.windaction.org/posts?location=USA&topic=Icing&type=Article
back to top