Find entropy where the temperature is lower than the saturated temperature

  1. Mar 13, 2012 #1
    my starting of system is 100 bar and 260 degree C. the saturation temperature for 100 bar is 311 degree C. so in order to find my enthalpy and entropy, i need to find x, dryness fraction. but my equation have 2 unknowns. how do I calculate availability?

    availability = (h-h0) -T0(s-s0)

    s = sf + xsfg

    have 2 unknowns. how do i compute s and h in order to compute availability?
     
  2. jcsd
  3. Mar 13, 2012 #2

    jim hardy

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    ASME or Keenan & Keyes Steam tables?
     
  4. Mar 13, 2012 #3
    ASME steam tables
     
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