# Steam enters a turbine operating at steady state at 2 MPa, 360 degrees C with a velocity of 100 m/s.

Steam enters a turbine operating at steady state at 2 MPa, 360 degrees C with a velocity of 100 m/s. Saturated vapor exits at .1 MPa and a velocity of 50 m/s. The elevation of the inlet is 3 m higher than at the exit. The mass flow rate oft the steam is 15 kg/s, and the power developed is 7 MW. Let g = 9.81 m/s^2.

a. What is the power associated with the change in velocity of the steam in kW?

b. What is the power associated with the change in elevation in kW?

c. Please express the power associated with the velocity change of the steam as a percentage of the power developed by the turbine.

d. Please express the power associated with the elevation change of the steam as a percentage of the power developed by the turbine.

e. When analyzing turbines, engineers often assume that the change in the kinetic energy of the steam and the change in the potential energy of the steam can be neglected without significantly affecting the analysis. Based on the results of this problem, is this a defensible practice? Please use a few sentences to explain why or why not.

f. Suppose that the exit were 3 m higher than the inlet. Would that change your response to Part e? Please use a few sentences to explain why or why not.