1. Determine the mass flow rate of steam required to produce 750 kW output in a turbine where potential and kinetic energy changes are negligible. The steam enters at 1 MPa and 250oC and leaves at 200 kPa and a quality of 92%.

2. A steam turbine operates with inlet conditions of 10 MPa, 500oC, and a velocity of 80 m/s. Dry saturated steam leaves the outlet at 0.1 MPa at a velocity of 160 m/s. The datum level is taken at the outlet and the elevation of the inlet is at 2 m. The heat loss through the turbine casing is 40 kW and the mass flow rate is 2 kg/s. Determine

(a) the power delivered by the turbine and

(b) the power delivered by the turbine if potential and kinetic energy changes are negligible.