Determine the input torque provided by a 100 m diameter rotor assembly to produce an instantaneous power output of 3.2 MW at 20 RPM for a direct drive wind turbine generator system.
What will be an ideal response?
The equation that relates power, torque, and RPM is Instantaneous power (PI) [W] = (Torque [N-m] x RPM)/9.5488.
Rearranging the variables for input torque; Torque [N-m] = 3,200,000 [W](9.5488)/20 RPM = 1,527,808 N-m. The input torque supplied by the wind flowing over the rotor assembly would be 1,527,808 N-m or 1,126,853 ft-lbs
You might also like to view...
Scientists think there are _____ species of insects that have not been identified
A) fewer than 1,000,000? B) as many as ?2,000,000 C) over 5,000,000? D) equal to 4,000,000
After each GTAW bead is completed on a fillet weld, what must be done to the bead prior to starting the next bead?
A) Clean it with a wire brush. B) Let it cool. C) Preheat it. D) Clean it with a grinder.
What would engineers have to consider when deciding if a beam bridge, an arch bridge, or a suspension bridge should be used in a specifi c project?
What will be an ideal response?
Drawing fees are generally charged per hour, price per square foot construction, a percentage of construction cost, or a combination of these methods.
Answer the following statement true (T) or false (F)