Engineering, 06.04.2020 18:36 GrainLeaf

Oxygen is compressed from an initial state of p1 = 1 bar, T1 = 25◦ C to a final state of p2 = 650 kPa, T2 = 270◦C in a compressor operating at steady state. Model the oxygen as a perfect gas with γ = 1.4 and cp = 0.92 kJ/kg·K. Neglecting stray heat transfer and kinetic and potential energy effects, determine: (a) the work, in kJ per kg of oxygen flowing through the compressor. (b) the isentropic efficiency η for the compressor.

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Oxygen is compressed from an initial state of p1 = 1 bar, T1 = 25◦ C to a final state of p2 = 650 kP...