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

Trades & Technology

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

Trades & Technology

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.

Trades & Technology

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?

Trades & Technology

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)

Trades & Technology