Flow Rate of Oil based on Pressures
Flow Rate of Oil based on Pressures
(OP)
I've got a system where oil is pumped at 20 bar down a pipe of 600m length into a tank at ambient pressure.
I was asked to provide an estimated maximum velocity of the oil. Temperature and viscosity of the fluids as well as pipe's diameter are known. Do you know how could I calculate it?
For natural gas there is a simple formula as on the pic below. I wonder if there's a similar formula for oil.

Thanks for your help.
I was asked to provide an estimated maximum velocity of the oil. Temperature and viscosity of the fluids as well as pipe's diameter are known. Do you know how could I calculate it?
For natural gas there is a simple formula as on the pic below. I wonder if there's a similar formula for oil.

Thanks for your help.





RE: Flow Rate of Oil based on Pressures
RE: Flow Rate of Oil based on Pressures
Good luck,
Latexman
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers
RE: Flow Rate of Oil based on Pressures
However I've always found this site very useful... http://www.engineeringtoolbox.com/darcy-weisbach-e... You do also need to know or estimate the surface roughness of the pipe.
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Flow Rate of Oil based on Pressures
Independent events are seldomly independent.
RE: Flow Rate of Oil based on Pressures
RE: Flow Rate of Oil based on Pressures
@Latexman,
Could you kindly post the equation that could be applied to this situation as I don't have access to this textbook.
@LittleInch,
It's a 4 inch pipe which discharges into a tank at that is kept at ambient pressure (discharge pressure into the tank is unknown). It's part of a bypass system that is used only occasionally. The engineering toolbox method appears to be not fit for purpose as it requires the velocity to be known.
All I know is pressure at pipe's inlet, temperature and viscosity of the oil, diameter of pipe and that the tank is kept at ambient pressure. I would like to be able to determine the max possible velocity of the fluid as one of the contractors requested that information in order to carry out some work on the system.
I've got a very limited understanding of flow conditions in such systems so your help would be greatly appreciated.
Regards
RE: Flow Rate of Oil based on Pressures
"Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime."
Good luck,
Latexman
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers
RE: Flow Rate of Oil based on Pressures
Independent events are seldomly independent.
RE: Flow Rate of Oil based on Pressures
Good luck,
Latexman
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers
RE: Flow Rate of Oil based on Pressures
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way