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Valve issue

2016-11-24
2016-11-24
  • Josh Harris

    Josh Harris - 2016-11-24

    I am trying to use a valve and controller block to lower the temperature of a saturated liquid stream. I am controlling the output stream of the valve to be a certain temperature by varying the pressure drop of the valve, but the output stream seems to be bugged even after the system converges. It should be a liquid vapor mixture, but it shows that there is a liquid molar fraction of 0 and a vapor mole fraction of 0. I even tried to feed the stream into a liquid gas seperator and then there is no flowrate coming out of the seperator because it thinks there is no liquid or gas in the stream at all. Thank you for any help that you can give.

     
  • Gregor Reichert

    Gregor Reichert - 2016-11-24

    Hi Josh,
    i tried your case with a mixture of water/ethanol and it worked without any problems. Are you working with the actual version?
    If you have any further problems you should attach your simulation to this conversion for further inspection.

    Gregor

     

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