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In: Mechanical Engineering

Prob.3) A jet-powered aircraft flies at a speed of 320 m / s at an altitude...

Prob.3) A jet-powered aircraft flies at a speed of 320 m / s at an altitude of 9150 m, where the ambient conditions are 32 kPa and –32 ° C. The pressure ratio in the compressor is 12 and the temperature at the inlet of the turbine is 1,400 K. The air enters the compressor at a rate of 60 kg / s and the jet fuel has a calorific value of 42,700 kJ / kg. Assuming ideal operation for all constant specific components and heats for air at room temperature, draw the diagrams and determine:

a) the velocity of the exhaust gases,

b) the developed propulsion power, and

c) the propulsion efficiency and the fuel consumption rate.

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