Articles filed under Structural Failure from Denmark
"The windmill stands so it is above the two-sided farm building that housed the bull calves. The blades fell into the building, and fire spread in the stable and the hamlet in there, which we tried to control," said Lars Stensbjerg, who is the leader of fire and rescue MidtVest.
The situation developed dramatically as one of the wind turbine blades which was in flames, fell into a nearby farm building that housed between 30 and 40 bull calves in the stable buildings.
Every time a drop of rain hits a wind turbine blade it contributes to a process that ends in small cracks being formed in the leading edge of the blade that eventually ruin the coating on the blade. The bigger the drop, the worse the damage, reports DR Nyheder.
Siemens Gamesa has commenced a blade repair and upgrade campaign at the Anholt offshore wind farm, after signing agreements with Ørsted for these works to be carried out on the Danish offshore wind farm and UK’s London Array, both featuring Siemens Gamesa’s 3.6MW wind turbines that have been affected by leading edge erosion.
Ørsted must repair up to 2,000 wind turbine blades because the leading edge of the blades has worn down after just a few years at sea. The company has a total of 646 wind turbines from Siemens Gamesa each of which may be affected at different degrees, confirms Ørsted to Finans.
A test version of MHI Vestas' V164 turbine, the world's most powerful wind turbine at 9 megawatts, has caught fire.
A blade has been blown off a Vestas turbine at Bindesbol, western Denmark during storm Urd, local publication Dagbladet Ringkobing-Skjern reported last week.
Siemens stated: "the findings indicate that there was a fracture in the welding connecting the tower top flange with the tower. The crack developed over time, ultimately leading to a separation of the tower top flange with the rest of the tower."
A large turbine at a Samsø offshore windfarm was wrecked on Saturday, bringing electricity production at the site to a halt. For unknown reasons, the 100-metre-high turbine lost its top part and all of its wings, which then fell into the sea.
The blades and gearbox have been spun off a wind turbine in western Jutland after a malfunction allowed it to reach to dangerous speeds in high winds. ..."We cannot get close to it until the wind dies down,” Oluf Jakobsen, from the local Morsø municipality explained on Friday morning. “There’s nothing we can do but sit and wait for the outcome."
The incident involved a single V90-3.0 MW wind turbine, which uses 44-meter-long blades. Two of the blades were damaged ...A developer named Hojstrup Vind ApS owns the wind farm, which features four V90-3.0 MW turbines. The machines were commissioned in December 2013,
Two 44-metre blades have broken on a Vestas V90 3MW turbine commissioned at a Danish wind farm in December. The blades came off “approximately a third of the distance from the tip end” on Sunday at the site close to the town of Sæby in Northern Jutland, Vestas said.
The Danish wind giant is dealing with fallout from a fire on one of its turbine models. A number of operating turbines were paused following the fire, and the company responded to media questions this week.
DENMARK: Horns Rev I, the 160MW offshore wind farm jointly owned by Vattenfall and Dong Energy, has been shut down following a fault in its transformer station.
A construction flaw in the foundations of many sea-based wind turbines was not discovered by inspectors who approved the structures' operation One of the most common foundations for sea-based wind turbines has a critical flaw but was nonetheless approved by a Nordic certification company, reports trade journal Ingeniøren. ...‘It's something no one could foresee and can give any engineer nightmares,' he said.
After the industry's recent boom years, wind power providers and experts are now concerned. The facilities may not be as reliable and durable as producers claim. Indeed, with thousands of mishaps, breakdowns and accidents having been reported in recent years, the difficulties seem to be mounting. Gearboxes hiding inside the casings perched on top of the towering masts have short shelf lives, often crapping out before even five years is up. In some cases, fractures form along the rotors, or even in the foundation, after only limited operation. Short circuits or overheated propellers have been known to cause fires. All this despite manufacturers' promises that the turbines would last at least 20 years.