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This function lets the user calculate Ln(fugacity) for each component + all the first order derivatives.
Important note:
VLXE uses the units: Kelvin, Bar, cm3, mole numbers internal. Therefore the values and derivatives obtained here uses these units no matter the user settings.
Input
Argument
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Type
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Optional
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Description
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Feed
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Range of double
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No
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A range of cells with the feed
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Temperature
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C# : double
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No
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Fixed temperature
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Pressure
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C# : double
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No
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Fixed pressure
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VolumeType
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C# : string
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No
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Volume type to look for. Valid input are:
•Auto (Volume root with the lowest Gibbs energy, recommended) •Liquid •Vapor |
Updatedni
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C# : string
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No
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Determine if the derivatives with respect to mole numbers are calculated. Valid input are:
•No •Yes |
Output
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C# : string
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No
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Defines the output. See here for more information.
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Components
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C# : string
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No
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Give a list of component names.
Only those components are used in the calculations.
See here for more information
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Units
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C# : string
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No
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Set the units used in this calculation.
See here for more information
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UseCompress
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C# : Object
(Expects a string)
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Yes
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This argument Is used only for system with a poly-disperse polymer. Determine if the code calculate the full range of properties or the compressed set. Valid input are:
•No •Yes |
Distribution
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C# : object
(Expect a range of double)
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Yes
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Gives a range with the distribution of the polymer. Can for example be used if 2 flash calculations are liked as 2 separation tanks.
See here for more information
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BlockMassfraction
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C# : object
(Expect a range of double)
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Yes
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Sets the block mass fractions in a co-polymer.
See here for more information
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ProjectSheet
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C#: object
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Yes
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Lets the user set the project sheet to use.
See here for more information
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AdvVLXE
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C# : object
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Yes
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Advanced used. Reserved for use by VLXE.
See here for more information
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AdvUser
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C# : object
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Yes
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Advanced used. Reserved for the user. For example it can be used to force the function update.
See here for more information
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Extra
This function is defined in C# as:
public Object[,] Lnf_TP(Range Feed, double Temperature, double Pressure, string Updatedni, string VolumeType, string Output, string Components, string Units, [In, Optional] object UseCompress, [In, Optional] object Distribution, [In, Optional] object BlockMassfraction, [In, Optional] object AdvVLXE, [In, Optional] object AdvUser)
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