See also: TraceMultiPhaseLine
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Calculating the phase envelope for a mixture is an very important calculation since it provides basic information on how the mixture behaves in the temperature, pressure space.
VLXE can handle a very large range of systems. The code is not yet able to automatic handle all kinds of systems. Therefore 2 phase envelope functions are provided.
One that takes a minimum of user input and one that gives the user maximum freedom.
This function takes a minimum of input and over time this function will be able to automatic handle all kinds of mixtures.
This function is defined in C# as:
public Object[,] PhaseEnvelopeAuto(Range Feed, string Output, string Components, string Units, [In, Optional] object Distribution, [In, Optional] object BlockMassfraction, [In, Optional] object AdvVLXE, [In, Optional] object AdvUser)
Below is a screen dump showing the phase envelope of the test system with a poly disperse polymer. Note that the enthalpy for each phase is part of the output and that the LCEP is marked on the chart.