Unformatted text preview: Air enters the compressor at 98 kPa and 295 K at steady rate of 10 kg/s and exits at 1 MPa and 620 K. Consider variable specific heats for air. (a) Calculate the net power (MW) delivered to the generator. (b) Determine the rate of entropy generation (kW/K) within the steam turbine as well as the air compressor. SP31: Air flows steadily through a turbine at the rate of 2 kg/s and expands from 3 bar and 117 C to 1 bar and 30 C. Consider variable specific heats for air. (a) What is the maximum possible power output (kW) of the turbine? (b) Calculate the isentropic efficiency (%) of the turbine. (c) Determine the rate of entropy generation (kW/K) for the turbine. (d) Show the actual and isentropic expansion processes on Ts diagram. Label the states, show temperature values, and appropriate lines of constant pressure....
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 Fall '08
 GAL
 Thermodynamics, Entropy, Heat, compressor, entropy generation, variable specific heats

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