Steam at 3MPa, 400 degree C enters a turbine with a volume flow rate of 5 m^3/s

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Steam at 3MPa, 400 degree C enters a turbine with a volume flow rate of 5 m^3/s. An extraction of 15% of the inlet mass flow rate exits at 600kPa, 200 degree C. The rest exits the turbine at 20kPa with a quality of 90%, and a velocity of 20m/s. Determine the volume flow rate of the extraction flow and the diameter of the final exit.