Dear Friends,
I'm analyzing a 52" heavy walled (45mm thk.) gas export line with the design pressure of 100 bars.
Although I've tried so much to reduce the system weight applied on pipe supports, I'm not satisfied yet as I can't find the reason for such high loads in hydrotest (WW+HP) load case. I get the load arround 600,000N (HYD)/400,000(SUS) on some of the supports arround expansion loops. Specially I have one such a big load on a turnnion which is going to mount a 13m, 30" vertical riser of the system (connecting to the 52" horizontal line) which realy makes me worried.
I've checked for possible lift-offs and rectified all load unbalancies.
Please let me know your ideas...