Question

Steam at 250oC and 1 MPa enters a compressor at a steady rate of 2 m3 /s with a velocity of 0.1 m/s. The device uses 6500 kJ/s of energy to compress the steam to a temperature of 500oC and a pressure of 4 MPa. Assuming that this device is adiabatic and that you can ignore potential energy changes, calculate the steam velocity and mass flow rate at the exit of the compressor.

Answer #1

Steam at 6 MPA, 600°C, enters a well-insulated turbine operating
at steady state and exits at 0.1 bar. The isentropic efficiency of
the turbine is 94.7%. Assuming the kinetic and potential energy
effects to be negligible, determine:
(a) Work output, in kJ/kg,
(b) The temperature at the exit of the turbine, in °C, and
(c) The rate of entropy production within the turbine, in kJ/K
per kg of steam flowing through the turbine.
(All steps required – Given/Find/Schematic/Engineering
Model/Analysis)
THANK...

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