7-54 A gas turbine operating at steady state is shown in Fig. P7.54. Air enters the compressor with a mass flow rate of 5 kg/s at 0.95 bar and 22°C and exits at 5.7 bar. The air then passes through a heat exchanger before entering the turbine at 1100 K, 5.7 bar. Air exits the turbine at 0.95 bar. The compressor and turbine operate adiabatically and the effects of motion and gravity can be ignored. The compressor and turbine isentropic efficiencies are 82 and 85%, respectively. Let T. = 22°C, p. = 0.95 bar. Using the ideal gas model for air, determine, each in kW, a. the net power developed. 725-5 b. the rates of exergy destruction for the compressor and turbine. 125-3, 138.6 -).964 c. the net rate exergy is carried out of the plant at the turbine exit, Py = 5.7 bar n₂=82% Compressor m₂ = 5 kg/s P₁ = 0.95 bar 1 T₁ = 22°C Qa Heat exchanger FIGURE P-64 P-5.7 bar 7,- 1100 K Turbine -n₁ = 85% PL-0.95 bar

7-54 A gas turbine operating at steady state is shown in Fig. P7.54. Air enters the compressor with a mass flow rate of 5 kg/s at 0.95 bar and 22°C and exits at 5.7 bar. The air then passes through a heat exchanger before entering the turbine at 1100 K, 5.7 bar. Air exits the turbine at 0.95 bar. The compressor and turbine operate adiabatically and the effects of motion and gravity can be ignored. The compressor and turbine isentropic efficiencies are 82 and 85%, respectively. Let T. = 22°C, p. = 0.95 bar. Using the ideal gas model for air, determine, each in kW, a. the net power developed. 725-5 b. the rates of exergy destruction for the compressor and turbine. 125-3, 138.6 -).964 c. the net rate exergy is carried out of the plant at the turbine exit, Py = 5.7 bar n₂=82% Compressor m₂ = 5 kg/s P₁ = 0.95 bar 1 T₁ = 22°C Qa Heat exchanger FIGURE P-64 P-5.7 bar 7,- 1100 K Turbine -n₁ = 85% PL-0.95 bar

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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