Hi All,
I'm trying to gain an understanding of how fire hydrant flow data obtained from my local utility provider relates to my model. The data I was given for 2 hydrants is: FH#1: Flow = 820.0 gpm, Static Pressure = 78.0 psi, Residual Pressure = 28.0 psi. FH#2: Flow = 890.0 gpm, Static Pressure = 66.0 psi, Residual Pressure = 34.0 psi. I would like to begin by creating a simple model using 1 reservoir, 1 pipe and 1 junction and calibrate it to one of the sets of flow data. I've created the model with the 3 elements described and I'm now trying to have the results of my fire flow analysis show the same results as the flow data I was given. I adjusted the reservoir elevation and pipe diameter several times but can't seem to zero in on the correct fire flow & residual pressures. Can anyone help explain how I can do this? There is a lot of references to printed information on setting up and fire flow analyses and interpreting the results and on the Darwin Calibrator in the forums but I'm trying to get a very basic view of how the correlation between actual flow data and what the model is doing.
Thank You
Hello Walter,
Also here are technotes on using Darwin Calibrator and Fire Flow analysis, for your reference, in case you haven't gone through it yet.
Using Darwin Calibrator
How does the Automated Fire Flow analysis work?
Regards,
Sushma Choure
Bentley Technical Suppport