Pump System Analyst (PSA) is an extension module for InfoWater Pro. With PSA, the user is able to not only evaluate whether a pump station meets the pumping capacity requirements or not, but also design a pump station improvement plan in order to meet the system needs and maintain the best pumping efficiency.
PSA can generate system head curves for part of or all pumps in the network. For a given pump, the user can have system head curves for up to three simulation time steps. All system head curves and the pump curve for a given pump is displayed in both tabular and graphical format. In the meantime, the user is able to manipulate the pump curve by adding one or more virtual pump in series or parallel mode, in order to determine the best options for upgrading the pump station.
To use PSA, go to the InfoWater Pro tab > Project group, select the Apps button to bring up the App Manager, and then click the PSA icon.
Pump System Analyst Dialog
The following parameters are used to run the system head curves:
Choose up to three simulation time steps for PSA to produce system head curves. Note that it is better to choose three simulation time steps that represent the low, average, and high system demands. For a steady state simulation, there is no choice to select simulation time steps.
Enable or disable the specified simulation time step
Specify simulation time step through the dropdown list or the button on both ends
Specify the pump curve type and the number of data points for PSA to create system head curves and pump curves
Specify the pump curve type to use
Specify the number of data points by directly entering a number or clicking on the arrow buttons on the right
Analyzing Pump Selection
First, select a number of pumps for analysis by typing Pump ID, double clicking a Pump ID cell and selecting a pump from the map, or adding pumps from domain. Then, specify the three parameters (Parallel Count, Setting, and Maximum Flow) for each selected pump. These three parameters are used to determine the maximum flow, which is then used to generate system head curves for a given pump. Based on the Parallel Count, Setting, and the corresponding pump curve, PSA calculates one maximum flow (i.e., the flow with zero head gain), compares it with the user-defined maximum flow, and uses the larger value for the system head curve generation.
The user can exclude a selected pump from pump system analysis by checking on the corresponding checkbox in the Disabled field within the table.
Populate domain pumps into the table
Open up Domain Manager
Rearrange pump records in the table
Remove the highlighted pump record from the table
Remove all pump records from the table
Enable all pumps for pump system analysis
Disable all pumps from pump system analysis
Add more rows if there is no enough room in the table. The user specifies the number of additional rows after clicking the button
Run pump system analysis for the target pumps in the table. While running pump system analysis, PSA updates the progress bar and shows messages in the textbox
Open a dialog to show pump system analysis results
Exit the PSA dialog
Pump System Analyst Results
The following parameters are used to format the system head curves:
PSA analyzes the target pumps and shows them in the table with three fields of Pump ID, Parallel Count, and Setting. Note that the table is not editable. The active analyzing pump is highlighted in yellow and its PSA results are shown on the right in both tabular and graphical format.
Click to make the selected analyzing pump active and highlighted in yellow, so the PSA results for the selected analyzing pump is shown on the right
PSA provides a convenient way for the user to evaluate pump combination alternatives, based on the active analyzing pump. The active analyzing pump’s ID is highlighted in yellow in the table. The user can create up to three pump combination alternatives, such as three different pump settings or three different pump parallel counts. After creating additional pump combinations, the user can revise each pump combination scenario’s Parallel Count and Setting as desired.
Click to copy the selected pump combination as a new pump combination
Click to delete the selected pump combination from the table. Note that the first pump combination is the base scenario, and then cannot be deleted
Select to show pump combination scenarios individually
Select to put all pump combination scenarios in parallel mode. Note that only a pump curve is displayed for the parallel mode
Select to put all pump combination scenarios in serial model. Note that only a pump curve is displayed for the serial mode
Click to refresh the graph and tabular report, based on the updated pump combination scenarios
PSA also populates all pumps in the model to the table of Model Pumps. The table has two fields to display Pump ID and Pump Description. The user can simply add any model pumps to the table of Combination Pumps.
Click to add a model pump to the table of Combination Pumps
Click to sort ascending or descending the records according to the Pump ID field
Graph and Report
The graph displays the system head curves and pump curves, while the table displays all data points behind the graph’s system head curves and pump curves. For help with the graph buttons, please refer to the page about the Graph control.
Choose one of ten flow units for system head curves and pump curves
Choose one of two head units for system head curves and pump curves
Click to print the tabular report on the bottom
Click to exit out of the PSA Results dialog