Results for Study 1
Take a look at the resulting default plots. Modify them and follow the below steps to create Figure 3, Figure 4, and Figure 5.
Figure 3: Conversion Along Reactor Axis
1
In the Settings window for 1D Plot Group, type Conversion Along Reactor Axis in the Label text field.
2
Click to expand the Title section. From the Title type list, choose None.
3
Locate the Legend section. From the Position list, choose Lower right.
4
In the Model Builder window, expand the Conversion Along Reactor Axis node, then click Global 1.
5
In the Settings window for Global, locate the y-Axis Data section.
6
Click  Clear Table.
7
In the table, enter the following settings:
Expression
Unit
Description
X_NOx_SCR
1
NOx Conversion in SCR
8
Click to expand the Coloring and Style section. From the Color cycle list, choose Long.
9
From the Width list, chose 2.
10
Find the Line markers subsection. From the Marker list, choose Cycle.
11
In the Number text field, type 1.
12
Click to expand the Legends section. Find the Include subsection. Clear the Expression checkbox.
13
Click the  Zoom Extents button in the Graphics toolbar.
14
In the Conversion Along Reactor Axis toolbar, click  Plot.
The plot in Figure 3 has now been set up. Duplicate this plot group to use as a basis for setting up Figure 4.
Figure 4: Temperature Increase Along Reactor Axis
1
In the Model Builder window, right-click Conversion Along Reactor Axis and choose Duplicate.
2
In the Model Builder window, click Conversion Along Reactor Axis 1.
3
In the Settings window for 1D Plot Group, type Temperature Increase Along Reactor Axis in the Label text field.
4
In the Model Builder window, expand the Conversion Along Reactor Axis node, then click Global 1
5
In the Settings window for Global, locate the y-Axis Data section.
6
In the table, enter the following settings:
Expression
Unit
Description
re.T-T_gas_in
K
Temperature Increase
7
Click the  Zoom Extents button in the Graphics toolbar.
8
In the Temperature Increase Along Reactor Axis toolbar, click  Plot.
By using an Evaluation Group we can create a table containing the final conversion values for each run in the Parametric Sweep study. That table can then be plotted to give Figure 5. That is what we will do next.
Figure 5: Temperature Operating Window
1
In the Results toolbar, click  Evaluation Group.
2
In the Settings window for Evaluation Group, type Temperature Operating Window in the Label text field.
3
Locate the Data section. From the Volume selection list, choose Last.
4
Right-click Temperature Operating Window and choose Global Evaluation.
5
In the Settings window for Global Evaluation, locate the Expressions section.
6
Click  Clear Table.
7
In the table, enter the following settings:
Expression
Unit
Description
X_NOx_SCR
1
NOx Conversion in SCR
8
In the Temperature Operating Window toolbar, click  Evaluate.
9
Go to the Temperature Operating Window window. It contains the data from the Evaluation.
10
Click the  Table Graph button in the window toolbar.
11
In the Settings window for Table Graph, locate the Data section.
12
From the Plot columns list, choose Manual.
13
In the Columns list, select NOx Conversion in SCR (1).
14
Locate the Coloring and Style section. From the Width list, choose 2.
15
In the Model Builder window, under Results click 1D Plot Group 3.
16
In the Settings window for 1D Plot Group, type Temperature Operating Window in the Label text field.
17
Click the  Zoom Extents button in the Graphics toolbar.
18
In the Temperature Operating Window toolbar, click  Plot.
SCR Temperature Operating Window, ANR = 1.3, Case 2
For convenience, add the plot groups to a Group with a descriptive name.
1
In the Model Builder window, under Results, Ctrl-click to select Conversion Along Reactor Axis, Temperature Increase Along Reactor Axis, and Temperature Operating Window.
2
Right-click and choose Group.
3
In the Settings window for Group, type SCR Temperature Operating Window, ANR = 1.3, Case 2 in the Label text field.
4
As a final cleaning-up action, in the Model Builder window, right-click Temperature (re) and choose Delete.
Figure 3, Figure 4, and Figure 5 are now done. Continue by investigating the SCR operation as a function of both inlet temperature and ammonia to NOx ratio (ANR). Such a study will generate a lot of data due to the many parameter combinations. Therefore, turn off generate default plots, choose Only plot when requested, and limit the data stored.