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Steam at 3 MPa, 400°C enters a turbine with a volume flow
Chapter 4, Problem 143HP(choose chapter or problem)
Problem 143HP
Steam at 3 MPa, 400°C enters a turbine with a volume flow rate of 5 m3/s. An extraction of 15% of the inlet mass flow rate exits at 600 kPa and 200°C. The rest exits the turbine at 20 kPa with a quality of 90% and a velocity of 20 m/s. Determine the volume flow rate of the extraction flow and the total turbine work.
Questions & Answers
QUESTION:
Problem 143HP
Steam at 3 MPa, 400°C enters a turbine with a volume flow rate of 5 m3/s. An extraction of 15% of the inlet mass flow rate exits at 600 kPa and 200°C. The rest exits the turbine at 20 kPa with a quality of 90% and a velocity of 20 m/s. Determine the volume flow rate of the extraction flow and the total turbine work.
ANSWER:
Solution 143 HP:
Step 1 of 2:-
The steam that is entering has a pressure of 3 MPa.
The temperature is, .
The volume flow rate is,
The extraction of the inlet mass which exists at at 600 kPa is a5%.