Compressible Flow Examples
Compressible Flow Examples
(OP)
Greetings,
I have just put together a excel spreadshet to calculate compressible flows. I would like to check results against known solutions in piping systems. Is there a good reference work out there that has examples of compressible flows in piping systems? The best examples would be those that handle valves and fittings in addition to just a straight pipe.
Any help/insight will be greatly appreciated.
JoeChem
I have just put together a excel spreadshet to calculate compressible flows. I would like to check results against known solutions in piping systems. Is there a good reference work out there that has examples of compressible flows in piping systems? The best examples would be those that handle valves and fittings in addition to just a straight pipe.
Any help/insight will be greatly appreciated.
JoeChem





RE: Compressible Flow Examples
Good luck,
Latexman
RE: Compressible Flow Examples
Larry
RE: Compressible Flow Examples
I tried to get our company to purchase AFT Arrow. From what I hear it is the best compressible flow package on the market, especially for sonic choking. I could not get the funds so I had to put together something on my own.
We operate steam distillation units that employ live steam to recover essential oils from mint plants and pressed lime juice. The steam is fed through a piping network that terminates with a pipe distributor. The distributor itself is made up of multiple perforated pipes. I believe the whole distribution system is undersized and sonic choking occurs in more than one location within. I am looking for ways to perform calculations to prove it and to design a new system.
Anyway, the system is fairly complicated with lots of valves, elbows, tees, etc. Not easy to simulate. If you do have some appropriate examples of compressible steam flow I would sure like to take a look at them to see if my program is reasonably accutrate.
By the way can the AFT arrow program handle a perforated pipe distributor?
Thanks for the help.
JoeChem
RE: Compressible Flow Examples
Larry
RE: Compressible Flow Examples
a) the choked flow thru a valve should be checked using the ISA valve equations for compressible flow- one cannot simply use a fied equivalent fL/d value in this case
b) confirm location of any area minimums in the system, since actual choking might occur there and considerably affect the results.