Question 4 Pressurised water at 10MPa and 300°C (state 1) undergo a pressure reduction at constant temperature until it

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Question 4 Pressurised Water At 10mpa And 300 C State 1 Undergo A Pressure Reduction At Constant Temperature Until It 1 (93.97 KiB) Viewed 32 times

Question 4 Pressurised water at 10MPa and 300°C (state 1) undergo a pressure reduction at constant temperature until it reaches a saturated liquid condition (state 2). Then the system is heated at constant pressure until 55.9% of its mass is liquid (state 3). The system then undergoes an isochoric process until it reaches a saturated vapor condition (state 4). Finally, the system is heated isobarically until its final temperature is 550°C (state 5). Answer the followings: a) Draw the process on a PV and TV diagrams and clearly indicate all the states in the diagrams b) What is the initial phase and why? c) What is the specific volume and density at state 1? d) What is the vapor pressure (kPa) at 300°C? e) What is the P at state 2? f) What is the specific volume of saturated liquid at 300°C? g) What are the qualities (x) at state 2, 3 and 4? h) What is the v at state 4? i) Determine the temperature at state 4? j) What is the specific enthalpy at the final condition? k) What is the final pressure (kPa)? 1) What is the enthalpy of vaporization (kJ/kg) at 10 MPa? m) What is the boiling temperature or Tsat at 10 MPa? n) What is the change in specific enthalpy for the whole process? o) Using Ideal gas law to calculate the final specific volume (m²/kg) and compare with the value from steam table. p) Using compressibility factor to calculate the final specific volume (m2/kg) and compare with the value from steam table. q) Can you use ideal gas law to calculate v at state 1? Explain. 1) What is the vapor pressure or Psat at 550°C?