Sorry but it seems my question is not clear yet. I put an example.
Steam has a design pressure/temperature of 5 barg and 240ºC.
According my understanding, the note should be "vessel to be designed for steam out conditions: half vacuum AND 240ºC.
however, the note normally says "half vacuum...
My understanding is that the reason behind a FV conditions during steam out can only occur when the vents are closed by accident or it start raining during the steam out and the vents are not prepare to get enough air in.
My question is
why do we normally write a note "FV AT XºC"? By...
Hi everyone
In our process data sheet for vessels we normally write a note indicating the alternate design conditions for steam-out.
Sometimes we write 0.5bara AND XºC
(XºC is just the plant steam temperature at atmospheric pressure)
However, sometimes I have seen "0.5 bara AT Design...
Hi!
I am supervising the FAT of a Compressor Control System (CCS). The CCS vendor gave the flow measurement in deltaP (inchH2O) because they just need this to generate the H vs Q curves.
We required to show the measurement in actual and standard units using the actual pressure and temperature...
Thank you very much. I understand now.
The thing is that I have to put a deltaP in the datasheet of those valves. I chose a small deltaP in order to obtain a big Cv. However, if the deltaP may be so high that it can reach choke flow, I may need to write a very wide deltaP range in the data...
Hi everyone,
I have always worked in refining projects but I'm involved now in a production project. I have to make a first approach of the gas lift, water injection and gas injection valves at the well head.
I've checked previous projects and I see these valves are always represented in P&IDs...
