Generating eco-friendly power with metal rotor blades
Wind turbines deliver environmentally friendly electricity. Yet the fiber-reinforced plastics often used in very large rotor blades are almost impossible to recycle. Not so with steel blades: since these ...
US Coast Guard tows fishing boat stuck in Antarctic ice (Update)
A U.S. Coast Guard icebreaker was towing a fishing boat out of heavy ice in Antarctica on Saturday after the vessel was stuck there for three days with 26 people aboard.
Smart anti-icing system for rotor blades
In very cold climate zones, the wind can blow with tremendous force. But wind turbines have rarely been built in these regions up to now. The risk of ice formation on the rotor blades is just too high. But ...
Greener ship propellers
A Norwegian invention is reducing by a third the energy that foundries need to manufacture ship propeller blades.
Measuring on ice: Researchers create 'smart' ice skating blade
An ice skating blade that informs figure skaters of the stresses they are imposing on their joints has been developed by a group of researchers in the US.
Bats may be mistaking wind turbines for trees
Certain bats may be approaching wind turbines after mistaking them for trees, according to a study to be published in the Proceedings of the National Academy of Sciences.
Lifting mechanism for mounting huge rotor blades
Siemens has created a special mechanism for mounting its 75-meter-long rotor blades for offshore wind farms. The lifting system makes assembly work safer and lets construction take place at higher wind speeds ...
Novel capability enables first test of real turbine engine conditions
(Phys.org) —Manufactures of turbine engines for airplanes, automobiles and electric generation plants could expedite the development of more durable, energy-efficient turbine blades thanks to a partnership ...
The relationship between the movement of wind turbines and the generation of lightning
Under favourable atmospheric conditions any elevated structure can generate upward lightning flashes. Even aircraft can do so—in fact, height and movement are two of the factors that contribute to this ...
Understanding the physics of turbulent flows inside turbines of aero-engines
(Phys.org) —Researchers from the University of Southampton are aiming to shed new light into the physics of turbulent flows inside the turbines of aero-engines.
Icing wind tunnel blows cold and hard to study ice on wings, turbine blades
(Phys.org) —From somewhere back behind the Iowa State University Icing Research Tunnel, Rye Waldman called out to see if Hui Hu was ready for a spray of cold water.
Measuring wind turbines remotely
The rotor and mast of a wind turbine can oscillate even in normal operation. The analysis of these oscillations plays an important role when the equipment is being developed and maintained. Up to now, this ...
High flying birds at greater risk of collision with offshore wind turbines
New research reveals that most seabirds fly near the sea surface, avoiding collision with wind turbines by flying under the blades. Those birds that fly higher above the sea are at greater risk of collision. Building offshore ...
Ancient Syrians favored buying local to outsourcing production
An archaeologist at the University of Sheffield has found evidence that, contrary to a widely held theory, ancient Syrians made their stone tools locally instead of importing finished tools from Turkey.