Well, I was already using a roughness of 46 microns, I didn't know it was suited for old pipes. In the mean time I spoke to a crew member of the LPG transportation team & they confirmed that the possiblity of a reduced diameter is pretty high, mainly due to a strange black powder present in the...
@LittleInch
THanks for your reply.
For the 21 years the pipe transport LPG and only that and it is kept at a minimum 20-25 bars to keep it liquid (at 18 bars we get an alarm & at 17 bars emmergency shut down goes on, to avoid pumps cavitation).
For the numbers, flow rate goes from 1100 m3/h...
@Snorgy
The last pig that was sent down the pipeline dates from 2005. Our LPG contains a black powder that labs were not able to indentify, it also has megnetic properties. So there is surely some sedimentation build up but as you said, it's really hard to quantify.
The full pipeline has...
Hello,
As part of a report i'm preparing for a training session, i must calculate the headloss in a pipeline.
The problème is, i only have access to the chacteristics of the pipeline in its newest state, but the pipe is 21 years old.
I tried using the data but the results were way too optimistic...
