The Fireflow Table contains the simulation parameters of all fire nodes or hydrants in the model, including the required fire fighting demand.
To edit your Fireflow table in InfoWater Pro:
- Open the table from either Run Manager Fireflow Tab using
or by opening the
DB Editor → Extended Modeling Data → Fireflow Demand Table
- Enter in the necessary information for the provided fields:
-
ID – The Junction ID of the element with Fireflow values assigned.
-
Fireflow - - This is the required Fireflow assigned to the Junction ID.
- Residual Pressure – This field can override the Global Residual Pressure in the Run Manager Fireflow tab if the value is non-zero. A blank or Zero value will use the Global value for Residual Pressure specified in the Run Manager Fireflow Tab.
- Design Pressure - This field can override the Global Min. Pressure in the Design Fireflow section of the Run Manager Fireflow tab if the value is non-zero. A blank or Zero value will use the Global value for Min. Pressure the Design Fireflow section of the Run Manager.
- Generate Model Output (Boolean) – This can have a Yes or No value assigned. Yes values will generate Fireflow element reports for all junctions that have a Yes value assigned. These reports will show element output data for all active elements when the required Fireflow is applied to the specified Fireflow junction. For more information on Fireflow element reports, go to Fire-Flow Analysis section in Tabular Report.
Notes:
- Innovyze recommends that you match the Residual and Design Pressure values used both in the Run Manager and if override values are used in the Fireflow table for a specific junction.
- To use a junction as a search node location that will not be evaluated for fireflow, Innovyze recommends the following: Create a Fireflow entry for the node in question and use a Fireflow of zero. If the Design Pressure for this location is less than the Global Min Design Pressure, set the lower Design Pressure in the Fireflow Demand table as desired and make sure the Fireflow field is set to zero. This will not evaluate fireflow for this location, but would still use this location in the Design Critical Node Search range but with the lower (or higher) Design Pressure as specified in the Fireflow table. This might include evaluation of pressures in locations where the pressure before the fire is already below 20 psi, but where you would like to ensure there is at least 0.5 psi (positive pressure) to perhaps 5 psi or 10 psi minimum pressure when the fire occurs. See example below for Junction 17 which will not get evaluated for Fireflow but will use a search range Design Pressure of 5 psi.
