At steady-state, an ideal gas enters a compressor with a mass fl ow 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:

where T is in [K].

(a) Assuming the compressor is adiabatic, calculate the power (in kW) required.

(b) In the real process, there is a fi nite amount of heat transfer. If the compressor operates between the same initial state and fi nal state as in Part A, will the actual power required be greater than, equal to, or less than that calculated in Part A? Explain.

Transcribed Image Text:

CP R = 3.60+ 0.500 10-T