4. Steam enters a turbine steadily at 10 MPa and 550°C with a velocity of 60 m and leaves at 40 kPa with a quality of 85 percent. A heat loss of 30 kJ/kg occurs during t process. The inlet area of the turbine is 150 cm², and the exit area is 1400 cm². Determin a) the mass flow rate of the steam, b) the exit velocity, c) the power output.

3. Nitrogen gas @ 90° F (MW=28) goes through a compressor, increasing its pressure from 10 psi to 65 psi. The temperature remained constant throughout. Determine the work in Hp for a steady flow process; AKE=0, APE=0; mass flow rate of nitrogen is 2 Ibm/min.

2. A steady stream of steam passes through a turbine. The steam inlet conditions are 10MPa, 450°C and 80m/s and at the outlet they are 10kPa, 92% quality and 50m/s. The mass flow of the steam is 12 kg/s. Determine a) the change in kinetic energy, b) the power developed by the turbine, and c) the area of ​​the turbine inlet.