Q10: Windmills slow the air and cause it to fill a larger channel as it passes through the blades. Consider a circular windmill with a 7-m-diameter rotor in a 8 m/s wind on a day when the atmospheric pressure is 100 kPa and the tempera- ture is 20°C. The wind speed behind the windmill is mea- sured at 6.5 m/s. Determine the diameter of the wind channel downstream from the rotor and the power produced by this windmill, presuming that the air is incompressible. Flow channel W

Elements Of Electromagnetics
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Q 10:
channel as it passes through the blades. Consider a circular
windmill with a 7-m-diameter rotor in a 8 m/s wind on a day
when the atmospheric pressure is 100 kPa and the tempera-
ture is 20°C. The wind speed behind the windmill is mea-
Windmills slow the air and cause it to fill a larger
sured at 6.5 m/s. Determine the diameter of the wind channel
downstream from the rotor and the power produced by this
windmill, presuming that the air is incompressible.
Flow channel
W
Transcribed Image Text:Q 10: channel as it passes through the blades. Consider a circular windmill with a 7-m-diameter rotor in a 8 m/s wind on a day when the atmospheric pressure is 100 kPa and the tempera- ture is 20°C. The wind speed behind the windmill is mea- Windmills slow the air and cause it to fill a larger sured at 6.5 m/s. Determine the diameter of the wind channel downstream from the rotor and the power produced by this windmill, presuming that the air is incompressible. Flow channel W
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