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Find entropy where the temperature is lower than the saturated temperature

by civic_67
Tags: entropy, saturated, temperature
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Mar13-12, 05:01 AM
P: 2
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?
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jim hardy
Mar13-12, 12:05 PM
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ASME or Keenan & Keyes Steam tables?
Mar13-12, 06:39 PM
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ASME steam tables

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