Question

A well-insulated turbine operating at steady state develops 23 mw of power for a steam flow rate of 40 kg/s. the steam enters at 360°c with a velocity of 35 m /s and exits as saturated vapor at 0.06 bar with a velocity of 120 m /s. neglecting potential energy effects, determine the inlet pressure, in bar.

Answer 1

You have to use the steady state of forms and, mass and energy balances in order to know the pressure of the inlet. m1 = m2 = m. Solve for the assumptions of steam flow rate, as well as the saturated vapor. Just simplify it.