Considering Constant-Composition Processes
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°C, 1 bar, 40 m/s with a mass flow rate of 1 kg/s and exits at 237°C, 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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