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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
2.54    At steady-state, an ideal gas enters a compressor with a mass flow rate of 10.0 [mol/s]. The inlet pressure is 1.00 bar and the inlet temperature is 25.0°C. The gas exits at 25.0 bar and 65.0°C. The ideal gas heat capacity is given by
cP 5 3.60 1 0.500 3 1023 T R where T is in [K].
(a)Â Â Â Assuming the compressor is adiabatic, calculate the power (in kW) required.
(b)Â Â Â Â In the real process, there is a finite amount of heat transfer. If the compressor operates between the same initial state and final state as in Part A, will the actual power required be greater than, equal to, or less than that calculated in Part A? Explain.
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