Hello CheResources!
I am a Process Engineer trying to size lines on a brownfield project.
Problem: How do I size the liquid drain lines from a vessel? (Inventory evacuation)
Background: The sizing criteria for drain line is not included in API 14E. Though NORSOK P-001 mentioned that Froude number should be less than 0.3.
Now, how do I arrive at the flow velocity when flow is by gravity? Besides, static pressure would make flow rate and velocity not-constant.
How do I also arrive at the evacuation time?
Please, any guide would be highly appreciated.