A multi-blades wind machine has power coefficient Cp = 1A- 0.5 A2 where A is the tip speed ratio. The rotor rotational speed w = 1 (rad/sec) and air density p = 1.2 kg/m2. a. Find Cpmax- b. Find the required rotor radius R (m) in order to produce design Power P = 5042.1 n (W) : c. Find produced Power (W) for the same w, given Rotor Radius R = 6 (m) and wind speed V = 3 (m/s). assuming given wind speed is less than the design wind speed and more than the cut-in wind speed:
A multi-blades wind machine has power coefficient Cp = 1A- 0.5 A2 where A is the tip speed ratio. The rotor rotational speed w = 1 (rad/sec) and air density p = 1.2 kg/m2. a. Find Cpmax- b. Find the required rotor radius R (m) in order to produce design Power P = 5042.1 n (W) : c. Find produced Power (W) for the same w, given Rotor Radius R = 6 (m) and wind speed V = 3 (m/s). assuming given wind speed is less than the design wind speed and more than the cut-in wind speed:
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Transcribed Image Text:A multi-blades wind machine has power coefficient
Cp = 1A-0.5 X2 where A is the tip speed ratio. The
rotor rotational speed w = 1
(rad/sec) and air
density p = 1.2 kg/m3.
a. Find Cp.max-
b. Find the required rotor radius R (m) in order to
produce design Power P = 5042.1 n (W):
c. Find produced Power (W) for the same w, given
Rotor Radius R = 6 (m) and wind speed V = 3 (m/s),
assuming given wind speed is less than the design
wind speed and more than the cut-in wind speed:
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