14 replies to this topic

[Deep24]

Hi,

I need a software or excel sheet for calculating maximum flow through a pipe. Line upstream & downstream pressure are available.

Also for a certain upstream pressure & flow, what will be the maximum pressure drop through a pipe.

 

Pls help.

 

Regards,

Deep

[Technical Bard]

This is a relatively easy thing to build yourself from textbook equations.

[Bobby Strain]

 

But there are many on this site. Also, you can look for commercial stuff for a good value. Try Steve Hall and Harvey Wilson at Katmar.

 

Bobby

[Art Montemayor]

Bobby is precisely right.

 

I cannot recommend Harvey Wilson's fluid flow software enough.  You can't beat the price he charges for the quality his software produces.  I've used it many times with good results.

 

It is called Aioflo Pipeflow Calculator and you can buy it at:

 

https://www.katmarso...x.html#products

[v7788999]

Try "Refining online" has a little program for unit convert, steam property and line sizing.  

[Jorge_RZ]

For simple piping calculations, there's many websites available for free.

 

For more reliable results, I'd also recommend Aioflo like Bobby and Art.

 

More more complex piping systems, we use Korf Hydraulics by Korf Technology Ltd. I strongly recommend it if you do this kind of calculations regularly.

 

http://www.korf.co.uk/

 

You can build entire piping systems with valves and fittings, including compressors, pumps, control valves, etc.

 

Hope it helps.

 

Jorge

[Che#pet]

You can use ASPEN HYSYS also for this purpose. When you specify the pipe inlet pressure, inlet temperature, pipe diameter, pipe length and pipe outlet pressure, HYSYS will back calculate the flow which will be the maximum flow possible for the available system differential pressure.

[Clezike04]

Pipephase would do all of what you ask.

[Yasserkassem]

Hello

you will find some suitable excel sheets in the next post

https://www.cheresou...s-calculations/

 

best regards

[ieseberri]

Hello!

 

If you are looking for an online free flow rate calculator, visit this website :

 

https://instrumentat...alculator.html#

 

You are going to be able to download the results calculation for free!

 

Enjoy!

[breizh]

Hi,

Refrain to use this forum for business purpose.

I will delete your post.

Breizh

[SamThaGangsta]

I actually just built a model from scratch, very easy to do. Although, I did have a starting place from a pump curve as the flow was between a vacuum pump, condenser, and dryer. Darcy-Weinbach,  simplified Bernoulli, or other will give you a very good estimate for both flow rate and subsequent pressure drop and vice versa. The model works pretty well with what is observed in the process as well. 

Density of Air Viscosity of Air Density of Steam Viscosity of Steam Percent Air Percent Steam Density of Mixture Viscosity of Mixture Length Diameter Roughness Flow Rate Velocity Re Friction Factor Pressure Losses Major Losses Minor Losses Total Losses P2

 

Used these variables. Derived from equations, process data, ANSI, Crane's flow manual, and Perry's. Once you have these values or the equations to solve for these values it should be plug and chug.

[Hamidpalan]

You can use Simcenter Flomaster software, similar to Hysys. Reliable and accurate. I can help if you need.

Edited by Hamidpalan, 25 December 2024 - 07:19 AM.

[Dacs]

You can use ASPEN HYSYS also for this purpose. When you specify the pipe inlet pressure, inlet temperature, pipe diameter, pipe length and pipe outlet pressure, HYSYS will back calculate the flow which will be the maximum flow possible for the available system differential pressure.

 

I know, late in the game but...

 

TL;DR: No.

 

Longer answer: NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!

 

There's a reason why Hysys, Flarenet and Hysys Hydraulics exist. Piping hydraulics in Hysys is acceptable for general use, but will behave very poorly in choked flow conditions.

[Hamidpalan]

You can use Flowmaster for steady state and transit modeling of chocked flow, water hammer,... in pipes.