I've been looking for a standard where it is written the criteria to choose the closing time than an ESDV (4 1"/16 - 5 1/8") should have after the shutdown is triggered. As a rule of thumb, I have always set the time in no more than 7 seconds. Even manufactures I have asked this question, cannot...
How to calculate the pressure inside a separator when it is full only of oil with solution gas?. It could happen when there is not enough pressure inside the vessel or got full of liquid for any reason. Please send a case study example. How do I calculate vapor pressure in this case?.
