How to Use Multi-Component Flash Calculator

Follow these steps to start the calculation

Main Panel

  • Enter the Number of Components present in the mixture ( Minimum 2 and Maximum 10 )
  • Select the Type of Calculation to be done P-T Flash, Bubble P, Dew P, Bubble T and Dew T
  • Enter the Pressure and Temperature condtions for flash calculation
  • Change Units for Pressure, Temeperature and Antoine Log by clicking on Change Units Button.

Data Panel

  • Select Component from the List
    • Select Component Number from Drop down menu, eg. Comp 1.
    • Select the Chemical from the List
    • Press the Select Button
    • For the second Component select Comp 2. from Drop down menu and repeat the above mentioned steps.
  • Or Manually Enter the Chemical Properties in the Table
    • Enter the Component Name
    • In Xi Column enter the Component mole fraction
    • Enter the Antoine equation parameters A,B,C for the equation
      log(P) = A-B/(T+C).
    • If Non-Ideal liquid behaviour is to be considered then enter Liquid Molar Volume, Vi ( in cm3/gm-mol ). Enter the Wilson interaction parameters in (cal/mol).
    • For Soave Redlich Kwong (SRK) and Peng Robinson (PR) EOS enter the critical Pressure Pc, Critical Temperature Tc, and Accentric Factor Omega W in the table.
  • Select the property model from the drop down menu for Raoult's Law, Modified Raoult's Law, Soave Redlich Kwong (SRK) EOS and Peng Robinson (PR) EOS.
  • Click Find BIP's button to look for binary interaction parameters from the data bank, if interaction parameters are not available then these can be manually filled in the table.
A Snapshot for the Input Data Panel Snapshot for Input Data Panel

Result Panel

To start the calculation press CALCULATE Button. Input data is first printed and then the results are generated. These results can be copied and pasted in any text editor or spreadsheet program for future record.


To Copy data follow these steps -
  • Press CTRL + A to Select all text matter in the text window.
  • Press CTRL + C to Copy the selected text matter.
  • Open any Text or Spreadsheet editor and press CTRL + V to Paste the selected Text.

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