Overrides for thermodynamic method data

When you change the thermodynamic data that you use in a Fluid Type, you typically make changes to a custom data bank in the AVEVA Thermodynamic Data Manager and then add that custom data bank to the Fluid Type. If you want to make small changes, this can be cumbersome and time consuming.

Instead, you can use the Method Data section in the Fluid Editor to locally override the thermodynamic data from the default and custom data banks. These changes apply only to the Fluid Type and do not propagate back to any of your custom data banks. If you want to apply these changes to multiple Fluid Types, we recommend that you update your custom data banks instead of locally overriding the thermodynamic data.

The tabs in the Method Data section are available only after you add components to your Fluid Type. Currently, you can override only the following method data:

• Binary interaction data for the following methods

  • Non-Random Two-Liquid (NRTL)

  • Peng-Robinson (PR)

  • Peng-Robinson Modified Panagiotopoulos-Reid (PRM)

  • Soave-Redlich-Kwong (SRK)

  • Soave-Redlich-Kwong Modified Panagiotopoulos-Reid (SRKM)

  • Universal Quasi-Chemical (UNIQUAC)

  • Wilson

  • Quadratic mixing rule for liquid molar volume (VLQMR)

  • Quadratic mixing rule for liquid viscosity (VISCQMR)

• Henry's coefficient data

• Alpha form coefficients for the following equations of state

  • PR

  • PRM

  • Predictive Soave-Redlich-Kwong (PSRK)

  • SRK

  • SRKM