Three return steam lines in a chemical processing plant enter a collection tank operating at steady state at 1 bar. Steam enters inlet 1 with flow rate of 0.8 kg's and quality of 0.9. Steam enters inlet 2 with flow rate of 2 kg's at 200 °C. Steam enters inlet 3 with flow rate of 1.2 kg's at 95 °C. Steam exits the tank at 1 bar. The rate of heat transfer from the collection tank is 40 kW. Neglecting kinetic and potential energy effects, determine for the steam exiting the tank: 

(a) The mass flow rate (in kg/s). 

(b) The temperature (in °C). 

Answer rating: 100% (QA)

a It is a steady state so mass flow is conserved m 1 m 2 m 3 m 4 m 4 8 2 12 4 kgs b For the first in... View the full answer