Reconsider Prob. 7-120. Using EES (or other) software, study the effect of varying the turbine isentropic efficiency from 0.75 to 1.0 on both the work done and the exit temperature of the steam, and plot your results.
Prob. 7-120
Steam enters an adiabatic turbine at 8 MPa and 500°C with a mass flow rate of 3 kg/s and leaves at 30 kPa. The isentropic efficiency of the turbine is 0.90. Neglecting the kinetic energy change of the steam, determine
(a) The temperature at the turbine exit and
(b) The power output of the turbine.

Transcribed Image Text:

8 MPa 500 C Steam turbine 90% 30 kPa