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Chapter 13, Problem 34P
To determine

Calculate the efficiency of the system.

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You are asked to design a small wind turbine (D=x+1.25 ft, where x = 22). Assume the wind speed is 15 mph at T=10°C and p=0.9 bar. The efficiency of the turbine is n = 25%, meaning that 25% of the kinetic energy in the wind can be extracted. Calculate the power in watts that can be produced by your turbine. I
Q.2 Flow Between pipes A car has a frontal projected area of 1.6 m² and travels at 60km/hr. It has a drag coefficient of 0.35 based on frontal area. Calculate the power required in kW to overcome wind resistance by the car. 3 Density of air= 1.2 kg/m³
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