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[画像:Problem 6.164 (8th Edition) Figure P6.164 shows a power system operating at steady state consisting of three components in series: an air compressor having an isentropic compressor efficiency of 80%, a heat exchanger, and a turbine having an isentropic turbine efficiency of 90%. Air enters the compressor at 1 bar, 300 K with a mass flow rate of 5.8 kg/s and exits at a pressure of 10 bar. Air enters the turbine at 10 bar, 1400 K and exits at a pressure of 1 bar. Air can be modeled as an ideal gas. Stray heat transfer and kinetic and potential energy effects are negligible. Determine, in kW, (a) the power required by the compressor, lin ☐ P1 = 10 bar Heat exchanger 10 bar = 1400 K Compressor n = 80% P1=1 bar T1 = 300 K m=5.8 kg/s Fig. P6.164 Question 19 Turbine -90% P4 = 1 bar Problem 6.164 (8th Edition) Determine, in kW, (b) the power developed by the turbine Question 20 Problem 6.164 (8th Edition) Determine, in kW, (c) the net power output of the overall power system. 1 pts 1 pts]
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Transcribed Image Text:Problem 6.164 (8th Edition) Figure P6.164 shows a power system operating at steady state consisting of three components in series: an air compressor having an isentropic compressor efficiency of 80%, a heat exchanger, and a turbine having an isentropic turbine efficiency of 90%. Air enters the compressor at 1 bar, 300 K with a mass flow rate of 5.8 kg/s and exits at a pressure of 10 bar. Air enters the turbine at 10 bar, 1400 K and exits at a pressure of 1 bar. Air can be modeled as an ideal gas. Stray heat transfer and kinetic and potential energy effects are negligible. Determine, in kW, (a) the power required by the compressor, lin ☐ P1 = 10 bar Heat exchanger 10 bar = 1400 K Compressor n = 80% P1=1 bar T1 = 300 K m=5.8 kg/s Fig. P6.164 Question 19 Turbine -90% P4 = 1 bar Problem 6.164 (8th Edition) Determine, in kW, (b) the power developed by the turbine Question 20 Problem 6.164 (8th Edition) Determine, in kW, (c) the net power output of the overall power system. 1 pts 1 pts
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