Applying the Exergy Balance: Control Volumes at Steady State
Air enters a compressor operating at steady state at T1 = 300 K, p1 = 1 bar with a velocity of 70 m/s. At the exit, T2 = 540 K, p2 = 5 bar and the velocity is 150 m/s. The air can be modeled as an ideal gas with cp = 1.01 kJ/kg · K. Stray heat transfer can be ignored. Determine, in kJ per kg of air flowing, (a) the power required by the compressor and (b) the rate of exergy destruction within the compressor. Let T0 = 300 K, p0 = 1 bar. Ignore the effects of motion and gravity.
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