Consider a 150 kW, 30 m diameter horizontal axis, fixed speed wind turbine operating in a wind speed of 9 m/s. Two blades mounted on a cast iron hub drive a generator through a gearbox with a shaft speed ratio of 1: 50. If the speed of the shaft rotates at a rate of 45 rpm, calculate the power coefficient, the rotor tip speed and the torque on the generator shaft after c

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k