The following is an example of a workflow demonstrating the use of Pressure Zone Manager (PZM). This example uses the Yourtown example model included with your standard installation of InfoWater Pro. Ensure that InfoWater Pro is installed and functioning properly. Also make sure that PZM is installed and enabled.
- Preliminary Steps
Open the Yourtown example model. It is likely to be found at the following path:
- Initialize the model.
Choose the desired scenario to evaluate pressure zones. In the Yourtown example, there is only the Base scenario so it is the one that will be evaluated.
Perform a model simulation. Click Runfrom InfoWater Pro ribbon tab.
It is likely that Pipe 78 is designated as a check valve and is oriented in the wrong direction causing a disconnect for part of the system. If this happens, the simulation will fail and a text report will popup. Close the text report.
Close the Run Manager. In the next two steps, you will use PZM to get information about the model with pressure zone diagrams even though the model is not running without errors yet.
- Start Pressure Zone Manager
- Trace Pressure Zones
First let's make sure the options are set appropriately. Click Options.
The Options button controls global options for the Pressure Zone Manager.
Several options can be set including whether to exclude valves or pumps as zone boundaries. For this example, you will include all valves and pumps as boundaries. Ensure all options are set in PZM options dialog box.
PZM Options Description Zone ID Sets default values for the Zone ID. ID Prefix Enter the zone name prefix in this field. Next ID Counter Use this field to increment the counter ID. Do not consider the following as boundary Check boxes to select valves or pumps to exclude as zone boundaries. Exclude all control valves Use this check box to exclude all control values. General Purpose Valves Only Use this check box to mark for General Purpose Values only. Pressure Breaker Valve Use this check box to mark for Pressure Breaker Valve. Pressure Sustaining Valve Use this check box to mark for Pressure Sustaining Valve. Throttle Control Valve Use this check box to mark for Throttle Control Valve. Warm Zero Elevation Use this option to checks for junctions with no or zero elevation data if checked.
Click New to initiate the Pressure Zone Wizard.
Choose a Zone ID field name. For this example, you will use the default "ZONEID".
Choose an Output Time (for an EPS simulation) when the hydraulics will be evaluated. Because this is a static model, leave the field blank.
- Click Next.
The Define Trace Area dialog box allows you to narrow the scope of your pressure zone trace to a Domain, Selection Set or Query Set. Since this is a small model you will look at the entire facility set so select the "No User Defined Boundary Pipes" option.
- Click Next.
The Intra-Zone Elements dialog box allows you to choose any facility which you don't want to be considered as a boundary. For now, you want all elements to be considered so just click Next.
The Boundary Pipe Elements dialog box allows you to choose a pipe or set of pipes to define a boundary. This could be useful if you wanted to split an actual pressure zone into sub-zones to evaluate the system characteristics. For now, just click Next.
The Customize Zone Information dialog box allows you to suggest zones and customize zone information. Let's suggest a zone.
Click Add Row. View Customize Zone Information dialog box.
Click in the cell in the Description field and type "Tank Zone".
Double click on the color box on the far left and choose Magenta.
Double click in the cell in the Start Node field. Select the junction between the reservoir and the pump. Your Wizard should look something like this:
The Pressure Zone Identification and Analysis is the final part of the wizard. Click Run.
Your results should look something like this:
If you have trouble with tracing any of your network in your wizard, you will be notified in the Status field.
You are now finished tracing the network. Click Finish to get back to the Pressure Zone Manager.
- Review Results Visually
Run your wizard. Your dialog box should look like this:
Double-click the color box for the second zone and choose a color to visually identify the zone.
Click in the Description box in the Zone Detail area. Type a description and click Update to update the description for the zone.
Repeat the previous two steps for the second zone. Your dialog box should have descriptions for your pressure zones as shown below.
Move the dialog box to a position on your screen that will allow you to see the map.
Click the "Tank Zone" zone in the PZM and click Show Zone. This will temporarily color the pipes identified for the "Tank Zone" and zoom in your display so you can see them better. Your screen should look something like this:
Repeat the previous step to inspect the second zones. Multiple zones can be selected before clicking on the Show Zone button.
At any time you can click on the Reset Map button to reset the map display to the default colors.
You are now ready to inspect the data and statistics calculated for each zone.
- Review Zone Data and Statistics
Click on the Zone Results button. The default view is the Hydraulic Profile Diagram view. The Hydraulic Profile Schema, Zone Summary, Boundary Elements and PZM Summary views are other ways that the data can be viewed.
Move and stretch the window as needed so that you can read the information.
It is likely that you have not run a hydraulic simulation yet and there will be no data about demand, flow or pressure. If this is the case, close Pressure Zone Manager and complete a successful model simulation. If the model will not run successfully it is likely that pipe "78" is designated as a check valve and that its orientation is incorrect. If so, select pipe "78" and click on the Reverse button in the Attribute Browser to reverse the orientation. Now complete the model simulation and open up Pressure Zone Manager.
If you had to complete a model simulation in the previous step, you are going to have to trace and analyze the network again. To do this, click on the Re-Run button. This will display the final window of the wizard and allow you to automatically trace the zones without having to go through all of the steps in the wizard again.
Now click Run, and then click Finish to go back to the PZM main window.
Click Zone Results and you will see that hydraulic simulation statistics for each zone are available.
Click Zone Summary to view and select the zone with a description of "West Zone" by using the Zone Selection tools.
Notice that the pressures within this zone are relatively high and the system owner might desire a lower operating pressure range. The system could be modified (e.g., install a pressure reducing valve in pipe "78") and another hydraulic simulation run. The Pressure Zone Manager could then be Re-Run to see the resulting hydraulic results by zone.
- Export Data
- PZM Summary can be used to view and print summary data.
Save Zone Data can be used to save the data to a CSV file.
Export to DXF can be used to export the Hydraulic Profile to a CAD drawing.
Export Zone can be used to create a Selection Set from the currently selected zone.
Export Domain can be used to add the currently selected zone to the Domain.
Export to Info360 can be used to add the currently selected data to the Info360.