5 replies to this topic

[cinca22]

I have to design a two phase separator (vapor-liquid). My problems now is that how do I determine the internal level and cumulative level of the separator. 

please anyone could answer. thank you.

[IUR]

Go to GPSA chapter#7 separation, You will find method to design two or three phase separators . For level, all separators are designed to have 50% of liquid and 50% vapour space in normal condition.   

 

 

IR

[breizh]

Consider the search engine in this forum . This topic is very popular !

GPSA  is for sure a great resource.

 

Breizh

[Process-Designs]

cinca22,

 

For liquid height in vessel, you have to design for normal stable operation of the two-phase separator. This is usually 50% of the vessel height. See the link below for sizing methods:

http://www.process-d...d_scrubbers.jsp

[Art Montemayor]

All vapor-Liquid separators are NEVER designed for 50% Liquid space "in normal condition".   This is totally false information and the reader should take care.  As Breizh has stated, this topic has been dealt with "ad infinitum" in our Forums - complete with design spreadsheets and logical explanations on how the liquid and vapor sections are sized --- and why.  Use our Forums Search Engine and you will find all the information you need.  And if need be, go to Bobby Strain's webpage for help.

 

This topic is demanding in logic and practical engineering inputs and that is the way you should take it on.  Look for the Brown-Souders relationship and understand how it was derived and why.  That's the way to start your path towards a logical, engineering solution.

[Neelakantan]

it is too late to comment and add to ART's statement;  but my question to the OP is why he asked such a general question

I have to design a two phase separator (vapor-liquid). My problems now is that how do I determine the internal level and cumulative level of the separator. 

please anyone could answer. thank you.

 i mean,

aa) nowadays students dont study or do research (with WWW available!?) and do not the teachers and guides point to where to get information?

bb) and without any information (no data) what he expected to get  for --- "how do i determine the internal level and the cumulative level " what he means cumulative level for two phase separator??

 

plough on! plough on!

 

regards

neelakantan