Results
Plot the phase envelope, for the two pressures used, as a function of the mole fraction of ethylene glycol.
Phase Envelope
1
In the Home toolbar, click  Add Plot Group and choose  1D Plot Group.
2
In the Label field, enter Phase envelope
3
In the Settings window for 1D Plot Group, locate the Data section.
4
From the Dataset list, choose Study 2: Phase envelope parameterization/Solution 2 (dset2).
5
Locate the Title section. From the Title type list, choose None.
6
Locate the Plot Settings section. Select the x-axis label checkbox.
7
In the associated text field, type Mole fraction ethylene glycol.
8
Select the y-axis label checkbox.
9
In the associated text field, type Temperature (K).
Global 1
1
In the Phase envelope toolbar, click  Global.
2
In the Label field, enter Txy
3
In the Settings window for Global, locate the y-Axis Data section.
4
In the table, enter the following settings:
Expression
Unit
Description
T_x_y(pRef, n, w_EG, w_W)
K
Phase envelope
5
Locate the x-Axis Data section. From the Axis source data list, choose w_EG.
6
In the Phase Envelope toolbar, click  Plot. This generates Figure 4. The figure shows that the phase envelope is moved to higher temperatures when the pressure increases.
To position the legend and rename the plot group use the following steps.
1
In the Model Builder window, click Phase Envelope.
2
In the Settings window for Phase Envelope, locate the Legend section.
3
From the Position list, choose Upper left.
4
Click  Plot.