Configure a Phase Envelope

You can configure a Phase Envelope so that it uses either a Fluid Type and specified composition of interest or a process stream from the simulation.

Configure a Phase Envelope that uses a Fluid Type

1. On the Canvas, double-click the Phase Envelope.

   The Phase Envelope appears with an expanded configuration area.

2. Expand the General section.

3. In the Title box, enter the title of the graph.

4. Select either Mole Basis or Mass Basis to view the phase data in terms of molar compositions or mass compositions, respectively.

5. In the Legend list, select the position for the graph's legend.

6. Expand the Configuration section if it is not already visible.

7. Select Fluid Type.

8. Specify the fluid that you want to view data for by doing one of the following:

   • In the Fluid Type list, select the Fluid Type.

   • From the Model Library, drag a Fluid Type onto the Phase Envelope on the Canvas.

   After you select the Fluid Type, AVEVA Process Simulation uses property data from the Fluid Type to initialize the Phase Envelope configuration.

   Important: Phase Envelopes currently support only Compositional Fluid Types that use an equation of state (EOS) as the System method and Vapor/Liquid (VLE) as the Phases selection.

9. Expand the Components List section.

10. Update the compositions in the table as desired.

    If the sum of the compositions does not equal one, the software normalizes the compositions when it calculates the phase data.

Configure a Phase Envelope that uses a process stream

11. On the Canvas, double-click the Phase Envelope.

    The Phase Envelope appears with an expanded configuration area.

12. Expand the General section.

13. In the Title box, enter the title of the graph.

14. Select either Mole Basis or Mass Basis to view the phase data in terms of molar compositions or mass compositions, respectively.

15. In the Legend list, select the position for the graph's legend.

16. Expand the Configuration section if it is not already visible.

17. Select Stream.

18. In the Stream box, enter the name of the process stream that you want to view data for.

    Important: Phase Envelopes currently support only Compositional Fluid Types that use an equation of state (EOS) as the System method and Vapor/Liquid (VLE) as the Phases selection.

19. Expand the Components List section to view the compositions from the process stream.

    You cannot update the compositions from the process stream in the Phase Envelope.

    If the sum of the compositions does not equal one, the software normalizes the compositions when it calculates the phase data.