Built Up and Superimpossed Back Pressure

Back pressure is defined as pressure that exists at PSV’s outlet. It has impact to performance of PSV, hence its value should be informed to vendor therefore shall be stated in the datasheet. Good concept understanding of the back pressure is helpful when calculates its value.

PSV Calculation - Kd,Kc,Kb factor

Hi friends, how are you today? Hopefully, you are not already bored with my articles. Now, we will learn the concept of relief valve calculation. The spreadsheets not tell you anything, but we should know what really it does. After read this fully article, I hope you get a better understanding of the relief valve calculation concept, and then know well with your spreadsheet.

The Art of Line Sizing

As process engineer, we have responsibility in determining the pipe size. Both at proposal and project stage, the adequacy of line size shall be reviewed by process team. I am really sure all of us already familiar with line sizing. We know well both the methods and criteria. Here, we will learn together that actually, the understanding of line sizing philosophy is very important. Line sizing is not just about GOOD and NOT GOOD as we can show in the spreadsheet.

LINE LIST – Input data temperature carefully!

All of us already know that line list is one of deliverable documents provided by process engineer. It is our important product document as a process engineer at IKPT. Many important data will be covered in this document.

Dry and Wet Gas

Wednesday, 11 January 2011, DEGC project team conducts regularly meeting. When the issue of PWHT -Post Weld Heat Treatment- requirement for some pipe is raised up on that meeting, piping engineer ask me what the service for and whether the condition is wet or dry.