I'm looking at a vessel vent line, which will be used to manually depressure a vessel containing light natural gas at 100 barg to an atmospheric vent header. The line is equipped with a restriction orifice and downstream of the RO passes via several collection headers, all of increasing size...
Colleagues,
When performing a fire case relief calculation, API521 equation for heat load against wetted area (Q=21000A^0.82, etc.) will give a relieving load due to vaporization. Do I also need to include an additional load due to gas expansion in the vapour space (Equation 8 in API521, W =...
Does anyone have a feel for (or ideally some reference to) how far UPSTREAM cooling will take place in the pipe wall at a valve in gas service with a high dP.
In other words, a hydrocarbon gas at ~140 bar is depressured to flare (atmospheric + nominal back-pressure) via a globe valve. Valve and...
Colleagues
Please can you offer a definition of the terms 'Stock Tank' (as in Stock Tank Conditions) and 'shrinkage'. Is Stock tank condition the same as standard condition (1 atm, 60°F)?
Thanks
jw
Colleagues
Please can you offer a definition of the terms 'Stock Tank' (as in Stock Tank Conditions) and 'shrinkage'. Is Stock tank condition the same as standard condition (1 atm, 60°F)?
Thanks
jw
