A few good machining turbine blades photos I located:
Turbines and Towers
Image by brewbooks
Turbines and Towers
127 wind turbine generators, spanning across 9,000 acres near Ellensburg, Washington.
Towers are 221 ft higher at hub, 13.2 ft wide base and 7.six ft wide at leading and weigh 104 tons. Each and every turbine consists of 3-blades, 129 ft lengthy, 11.62 ft at widest and 1.six ft at tip with every single blade weighing 14,300 lbs. The rotor (blades, hub and nose cone) weighs 42 tons.
Turbine generators are V80-1.8 MW machines manufactured by Vestas, a Danish organization. Each generator can create 690 volts, which is stepped-up to 34,500 volts by an on-board transformer. The generator is housed inside a fiberglass nacelle.
The generator and nacelle with each other weigh 69 tons.
Total height with a blade completely extended is 351 ft and total weight is roughly 270 tons. These are the biggest wind turbine generators in Washington State (as of 2007)
Each tower foundation reaches a minimum depth of 25 ft and a maximum of 32 ft depending on bedrock depth and takes an average of one hundred to 260 cubic yards of concrete. Every single foundation requires 120 anchor bolts that span from the surface of the ground to the bottom of the foundation. A single 28 ft anchor bolt weighs around 150 lbs.
Rotors turn 15.5 rpm, turning clockwise (front view) with a rotor diameter of 264 ft, larger than a wingspan of a Boeing 747.
Turbines can produce electrical energy at wind speeds as low as 9 mph, reaching their peak of production at 31 mph and shut down at constant wind speeds of 56 mph. The prevailing winds are from the northwest.
Every turbine is capable of producing 1.8 megawatts, or a total of 229 megawatts of capacity, adequate electrical energy to serve approximately 73,000 properties when all 127 are creating at full capacity.
derived from Puget Sound Power
www.pse.com/energyEnvironment/EnergySupply_ElectricityWin…
i042907 343
Turbines and Towers
Image by brewbooks
Turbines and Towers
127 wind turbine generators, spanning across 9,000 acres near Ellensburg, Washington.
Towers are 221 ft high at hub, 13.two ft wide base and 7.six ft wide at leading and weigh 104 tons. Every turbine consists of three-blades, 129 ft lengthy, 11.62 ft at widest and 1.6 ft at tip with every single blade weighing 14,300 lbs. The rotor (blades, hub and nose cone) weighs 42 tons.
Turbine generators are V80-1.eight MW machines manufactured by Vestas, a Danish firm. Each generator can make 690 volts, which is stepped-up to 34,500 volts by an on-board transformer. The generator is housed inside a fiberglass nacelle.
The generator and nacelle together weigh 69 tons.
Total height with a blade totally extended is 351 ft and total weight is about 270 tons. These are the largest wind turbine generators in Washington State (as of 2007)
Every single tower foundation reaches a minimum depth of 25 ft and a maximum of 32 ft based on bedrock depth and requires an average of 100 to 260 cubic yards of concrete. Every single foundation demands 120 anchor bolts that span from the surface of the ground to the bottom of the foundation. A single 28 ft anchor bolt weighs roughly 150 lbs.
Rotors turn 15.5 rpm, turning clockwise (front view) with a rotor diameter of 264 ft, larger than a wingspan of a Boeing 747.
Turbines can produce electricity at wind speeds as low as 9 mph, reaching their peak of production at 31 mph and shut down at continuous wind speeds of 56 mph. The prevailing winds are from the northwest.
Each turbine is capable of producing 1.eight megawatts, or a total of 229 megawatts of capacity, adequate electricity to serve approximately 73,000 properties when all 127 are producing at complete capacity.
derived from Puget Sound Power
www.pse.com/energyEnvironment/EnergySupply_ElectricityWin…
i042907 344