A turbine operates under steady flow conditions, receiving steam at the following state:
Pressure 1.2 MPa, temperature 188° C, enthalpy 2785 kJ/kg, velocity 33.3 m/s and elevation 3 m.
The steam leaves the turbine at the following state:
Pressure 20kPa, enthalpy 2512 kJ/kg, velocity 100 m/s and elevation 0 m.
Heat is lost to the surroundings at the rate of 0.29 kJ/s. If the rate of steam flow through the turbine is 0.42 kg/s, what is the power output of the turbine in kW?
1
150
2
186
3
112
4
136