Question

Steam enters the adiabatic turbine at a temperature of 500C, a pressure of 10 MPa and exits at a pressure of

8 MPa. Determine the work product per unit mass of steam if the process can be reversed.

Answer 1

Work done :

 w_t = (inlet steam enthalpy – cold reheat enthalpy) + (hot reheat enthalpy – turbine exhaust enthalpy)

$wt = (2777.7 – 762.88) + (2768.9– 721.23)$ ..... From steam tables

wt =4062.49 J