Piping Pressure Drop Calculation Software

[nmt]

Looking for a pipe pressure drop software package (or spread sheet) that calculates pipe & fitting losses with head/100ft & fitting velocity effects built in.

 

[unclesyd]

Try this site for inexpensive software or Excel programs

http://www.engineering-software.com/me/

 

[NorgenLou]

I think Elite makes something:

http://www.elitesoft.com/

I also found an old diskette (DOS 3.1?) labelled pressure drop calcs, probably from a vendor. If you're interested, email me, and I'll shoot you the file, no guarantees!

 

[aumechengr]

We utilize a software called PipeFlo Professional that allows you to create your own piping system including pumps, valves, regulators, pipe material, various fluids, etc. The website is

http://www.eng-software.com

aumechengr

 

[62hog]

If you are looking for single pipe pressure drops, try this link to McQuay's website.

http://www.mcquay.com/eprise/main/mcquaycom/designsolutions/designtools/MQC_designtools

Download the Pipesizer program and install it. This site also has Psychrometrics and Duct Sizing software available.

 

[beastpack]

Trane Pipe Designer has the ability to do this. The program is also pretty inexpensive.

http://www.tranecds.com

 

[lilliput1]

Try to make a spreadsheet for it. For water a good enough approximation for head loss in ft of water is:

h = 0.001599 x L x (100/C)^1.85 x ((GPM)^1.9046)/((d)^1.9921)

where h = ft of water
L = equivalent length of piping including equivalent length for loss through fittings

C = Hazen & Williams Friction factor which varies for type of pipe material & age. Design value is 100 for new steel pipe.
d = inches inside diameter of pipe

For design increase head loss by minimum 15% to allow for aging for closed systems. For open systems increase by minimum 26%.

I derived the equation to get a close match to Cameron Hydraulic Data tables.

See it also for recommended equivalent length factors for various fittings.

 

[lilliput1]

Correction:
Use 40% to 75% more loss for open systems and minimum 15% more for closed systems. The 75% being for piping 30 years old. Apply the aging factors only to the actual run of piping, not to the equivalent length portion of fittings.