Purge rate 1

[Idontknowit]

Hi Folks,

Any tips/references on how to calculate purge rate for small scale test rig will be much appreciated(consists of receiver tank,high pressure reservoir,gas expander,test section,intermediate low tempereature pressure tank) ?

 

[zdas04]

What are you purging (e.g., are you trying to get rid of air prior to introducing flamable gas, or trying to maintain a known atmosphere for maintenenace)? What kind of purge are you trying to do (e.g. a clearing purge has a different design than a dilution purge)?

David

 

[Idontknowit]

Hi Zdas04

2 reasons for purging:

*Either the gas is to be replaced.(Flamable gas consisting from 80-90% of methane,5-10% CO2,2-5% N2)

*depressurise and dismantle parts of the test rig

It is clearing purge.

 

[25362]

Chapter 7 of Chemical Process Safety: Fundamentals with applications by Crowl & Louvar (Prentice Hall) describes several purging procedures.

 

[Idontknowit]

25362,

Can you please send me some link to review chapter 7 of this book?

 

[Idontknowit]

25362,

I need to calculate purge rate, not look for purge procedures. If book which you recommended only describes purge procedures,then it is not what I needed,

Thanks

 

[25362]

Idontknowit, every procedure is exemplified with a calculation.

 

[Idontknowit]

25362,

Many thanks

Idontknowit

 

[proinwv2]

This information may be of use to you.

Paul
www.ostand.com