Answer to Question #246449 in Mechanical Engineering for abdullahi

Question #246449
steam inside a closed vessel of fixed volume, 0.14 m^3. The steam exerts a pressure of 10 bar at 250 degrees Celcius. If the vessel is now cooled so that the pressure falls to 3.5 bar, determine the mass of the steam, the dryness fraction and the final temperature
1
Expert's answer
2021-10-05T07:57:02-0400

Initial state is in the liquid-vapour saturation region since x1 = 0.7

·

Final state: P2 = 7 bars v2m v2 = 2v1 = 0,3727 m3/kg

steam is a superheated vapour at the final state. Interpolation is necessary!

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