Re: barometric piping

From: <Gang>
Date: Mon Jul 30 2007 - 09:29:00 EDT

Pushendra,

   Generally, there is a continuous inflow of coolant liquid into the vacuum vessel, to condense the incoming supply of condensable vapours. This mixture, coolant plus condensed vapour fraction flows out through the barometric leg to the SINK system. It has to happen under its own latent pressure head, as there is no pump here. The more the pressure drop, the slower will be the flow rate and hence, slower the throughput through the system and therefore lesser plant production. In order to minimize this pressure drop, the general practice is to have “as straight as possible” BENDs.

   Cheers!
   Ganga.
   C. V. Gangadharan

PUSHPENDRA KUMAR <pushpendra_gangwar@yahoo.com> wrote: In UHDE spec I read that barometric leg piping should be kept straight.I would like to know why ?

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[Non-text portions of this message have been removed] Received on Mon Jul 30 09:29:00 2007