Question 1 was solved in a previous blog entry (Click here).
Note: The Appendix B for steam values that I have referred to in these questions was obtained from:
M.D Koretsky, Engineering and Chemical Thermodynamics, Wiley, 2004.
However, any steam tables from other reputable publishers can also work.
Question 2
An insulated rigid tank contains 0.2 kg of wet steam at 65°C. The steam is stirred with a paddle wheel until the pressure reaches 500 kPa. If the volume of the tank is 0.15 m3, determine:
a) The final temperature in the tank,
b) The work done by the paddle wheel.
Answer:
A rigid tank containing
saturated steam at 600 kPa is cooled until the quality reaches to 50%. If the
volume of the tank is 0.3 m3, determine:
a) The final temperature and
pressure in the tank,
b) The amount of heat that must be removed.
Answer:
