Question 5:
Steam at 1860 lbf/in^2 and 1100°F enters a turbine operating at steady state. As shown in the figure here, 20% of the entering mass flow is extracted at 600 ft^2/min and 500°F. The rest of the steam exits as saturated vapor at 1 lbf/in^2. The turbine develops a power output that occurs at a rate of 5 x 10^4 ft-lbf/s. Neglecting kinetic and potential energy effects, determine the turbine inlet mass flow rate in lb/s.
Question 5:
Steam at 1860 lbf/in^2 and 1100°F enters a turbine operating at steady state. As shown in the figure here, 20% of the entering mass flow is extracted. Power output occurs at a rate of 519 ft-lbf/s. Neglecting kinetic and potential energy effects, determine the mass flow rate of the steam entering the turbine in lb/s.