Pump system curve for branching system

[ben3929]

If possible, I need an example or excel spreadsheet calculator on how to calculate or generate pump system curve for branching system with multiple destination (with various pipe size) and single source of fluid (single pump). I believe this is different than a system consisting of a single source of fluid, single pump and single destination.

 

[pmover]

http://www.mcnallyinstitute.com/18-html/18-5.htm

good luck.

 

[IFRs]

This gets analytically very complicated very fast and lends itself to computers although Excel may not be your tool of choice. A relatively inexpensive program to do this computation can be found at

http://www.flowoffluids.com

 

[fel3]

EPANET is free.

https://www.epa.gov/water-research/epanet

It doesn't have a lot of "bells and whistles", but it should handle your system.

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"Is it the only lesson of history that mankind is unteachable?"
--Winston S. Churchill

 

[nondimensional]

+1 for EPANET. Excel gets complicated beyond 2 branches.

 

[IFRs]

EPAnet is good for water but not liquids with different properties, particularly viscosity and vapor pressure.

 

[fel3]

IFRs…

True, but the OP is apparently a civil engineer, so water is the most likely fluid in play here. Also, EPANET can work with the Darcy-Weisbach equation, so it can handle more than just water…up to a point.

Fred

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"Is it the only lesson of history that mankind is unteachable?"
--Winston S. Churchill