find entropy where the temperature is lower than the saturated temperature

civic_67

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?

jim hardy

ASME or Keenan & Keyes Steam tables?

civic_67

ASME steam tables