11- Air enters a compressor operating at steady state with a pressure of 1 bar, a...

  

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11- Air enters a compressor operating at steady state with a pressure of 1 bar, a temperature of 20°C, and a volumetric flow rate of 0.25 m'/s. The air velocity in the exit pipe is 210 m/s and the exit pressure is 1 MPa. If each unit mass of air passing from inlet to exit undergoes a process described by pv34 = constant, determine the exit temperature, in °C. Useful I data: Y= C/C 1.4 Gas Molar mass- M-, kg/k mol Air 28.97 oxygen 32 1.4 Butane (CH10) 58 1.1 Nitrogen (N2) 28 1.4 Methane (CH,) 16 1.32 Universal gas constant = 8.314 kJ / kmol. K 1 bar = 100 kPa For liquid water h = 4.18 *t, kJ/kg where t in °C Water density 1000 kg/m 11- Air enters a compressor operating at steady state with a pressure of 1 bar, a temperature of 20°C, and a volumetric flow rate of 0.25 m'/s. The air velocity in the exit pipe is 210 m/s and the exit pressure is 1 MPa. If each unit mass of air passing from inlet to exit undergoes a process described by pv34 = constant, determine the exit temperature, in °C. Useful I data: Y= C/C 1.4 Gas Molar mass- M-, kg/k mol Air 28.97 oxygen 32 1.4 Butane (CH10) 58 1.1 Nitrogen (N2) 28 1.4 Methane (CH,) 16 1.32 Universal gas constant = 8.314 kJ / kmol. K 1 bar = 100 kPa For liquid water h = 4.18 *t, kJ/kg where t in °C Water density 1000 kg/m