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Thread: how to calculate parial pressure of H2O

  1. 10-03-2015, 03:09 PM #1
    zekatyumen
    zekatyumen is offline Junior Member

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    how to calculate parial pressure of H2O

    Please helpe me, how to calculate the partial pressure of H2O in Aspen Hysys.
    Have a solution: 95% mass. DEG and 5% mass. water. in this flow set vapour / phase vraction - 0, temperature - 20 C, hysys calculates pressure 1206 Pa, then I multiply this pressure by % mol. fraction of H2O and have the wrong value (according to lituratire, it must be about 1600 Pa). what is wrong?
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  2. 10-03-2015 03:09 PM # ADS
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