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How can a user find the total volume demanded in a system?
First, you can use the Criticality tool. There is a TechNote on Criticality here. This is used to find areas that may be impacted by system outages, but does report the total volume demanded. Go to Analysis > Criticality. Select the New button in the upper left and choose the scenario you want the total volume demanded for. Next, highlight the scenario name on the left. For Scope Type, select "Entire Network" and click the Compute button.
Now, highlight Outage Segments on the left and click the Compute button. Once that is completed, highlight Criticality on the left.
Be sure to put a checkmark in the "Run Hydraulic Engine" select at the top. With that done, click Compute. The fields will fill in, inlcuding Total System Demanded.
Second, you can use the Flow Balance Tool in the Pressure Zone manager. Go to Analysis > Pressure Zones. Click the New button and select the scenario you want data for. Highlight the scenario name and make sure Scope Type is set to "Entire Network". Then click the Compute button. Now click the Flow Balance icon.
Choose Volume from the options. The total volume demanded for each pressure zone will be listed. The sum will be the total volume demanded
You can use the data in the Calculation Summary to find the total volume. The calculation Summary has the total flow demand at each time step. The key to this is to make sure the the flow units coincide with the output units. For instance, you would need a demand reported every minute if you GPM, or every hour for liters/hour.
Once you have the data in the calculation summary, you can generate a report of the Calculation Summary and export the file to Excel. You can then sum up the demanded flow for each time and divide by the total time. Remember that units are very important for this method. It will not work if you have flow units of GPM and an increment of hours.