Thank you all for the valuable information.
First of all, I will introduce myself. My name is Magi Nagar. I have a PhD in chemistry (specialization in electrochemistry) and now I am facing a new challenge as a chemical process engineer. Hence, I have scientific knowledge however, I am new to the refinery industry.
I would like to better understand the logic behind the various parameters so that I can better design a liquid vessel myself.
For example: I would assume that the depth of the water below the end of the inlet line is a crucial parameter and depends on the maximum pressure in the inlet pipe. I mean, I don't want gas bubbles hitting the bottom of my vessel and creating waves and splashes.
However, in API521, this parameter is not discussed and from your feedback it should be 0.3m or 0.25 of the inlet diameter (whichever is greater) regardless of gas pressure and velocity.
0.3 m of water corresponds to 3KPa...but what if my gauge pressure is higher? Am I not risking splashing and surging?
I thought of using Bernoulli's equation because the gas entering the liquid actually has static and dynamic pressure (derived from its pressure, kinetic energy, and gravitational potential energy).
So my thought was first to calculate the pressure at the end of the inlet pipe according to Bernoulli's equation and from there to derive the water height (below the end of inlet pipe) that would correspond to this pressure.
Does that make sense?
I have more questions but first I will thoroughly go over the information you provided.
Thanks again
Magi