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[DANA-IF]

Dear friends ,

 

In the article :''Successfully Specify Three-Phase Separators" they said that termina velocity Ut is typically limited in

 

calculations to 10 in /min maximum  (page 30) .

 

However ,the example  in page 38 of article the Ut is 2.55 ft/s (1836 in/min ) .

 

https://docs.google....YzVmZDFhOTAwYmE

 

Can anyone explain this huge difference please ?

 

REGARDS !

 

 

 

[Bobby Strain]

         10 inches / minute applies to liquid-liquid systems. Not vapor-liquid. And I generally use a higher value for light hydrocarbons/water. If you visit my website you will find an Excel workbook to calculate settling in vapor or liquid systems.

        And, remember that the publication you quote is for academic purposes only. It should not be used to actually design a separator for service as there are many things missing. Use API or GPSA suggested methods. You can search the web for articles for J. M. Campbell articles. I believe I supplied some references recently. Use the site search engine to find them.

 

Bobby

Edited by Bobby Strain, 12 May 2017 - 04:11 PM.