Gas Velocity in Branch
Gas Velocity in Branch
(OP)
Hello
Please helpe to find out the right equation to solve the following problem:
There is a 16 in. line with 60 psig and 75 F gas (mathane) flowing in the line.
If I want to make a 3 in. branch from this 16 in. line, which disharges to the atmosphere how can I calculate the gas velocity in the 3 in. branch? ( Note: I do not know what the flowrate in the 16 in. is)
Please helpe to find out the right equation to solve the following problem:
There is a 16 in. line with 60 psig and 75 F gas (mathane) flowing in the line.
If I want to make a 3 in. branch from this 16 in. line, which disharges to the atmosphere how can I calculate the gas velocity in the 3 in. branch? ( Note: I do not know what the flowrate in the 16 in. is)





RE: Gas Velocity in Branch
If the pressure at the branch dosnt change then you can calculate it as a 3" line with dischage to atm. It will (most likely) choke at the exit.
Best regards
Morten
RE: Gas Velocity in Branch
Thanks Morten the hint.