A mixture having a molar analysis of 50% CO2, 33.3% CO, and 16.7% O2 enters a

compressor operating at steady state at 37 oC, 1 bar, 40 m/s with a mass flow rate of 1

kg/s and exits at 237 oC, 30 m/s. The rate of heat transfer from the compressor to its

surroundings is 5% of the power input.

a) Neglecting potential energy effects, determine the power input to the

compressor, in kW.

b) If the compression is polytropic, evaluate the polytropic exponent n and the exit

pressure, in bar.

compressor operating at steady state at 37 oC, 1 bar, 40 m/s with a mass flow rate of 1

kg/s and exits at 237 oC, 30 m/s. The rate of heat transfer from the compressor to its

surroundings is 5% of the power input.

a) Neglecting potential energy effects, determine the power input to the

compressor, in kW.

b) If the compression is polytropic, evaluate the polytropic exponent n and the exit

pressure, in bar.

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