×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Calculating flow through a relief device....

Calculating flow through a relief device....

Calculating flow through a relief device....

(OP)
Could someone please provide me with an equation to calculate the flow through a standard relief valve on a distillation column?

Thank you

RE: Calculating flow through a relief device....

The supplier. (Cv has to be known)

RE: Calculating flow through a relief device....

The equation you use to size a relief valve or calculate the capacity of a relief valve will depend upon whether the flow is all vapor, all liquid, or 2-phase.  Most relief valve manufacturers provide a technical reference manual that provides the flow of vapor and/or liquid through their relief valves.  For critical flow through a relief valve, see also the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, Appendix 11.  An excellent reference for almost all questions on relief valves, refer to Guidelines for "Pressure Relief and Effluent Handling Systems," a CCPS book published in 1998 by the American Institute of Chemical Engineers.  You can also see information provided on the DIERS web site:  www.diers.net (link provided on www.iomosaic.com web site by the company that voluntarily maintains DIERS web site).  DIERS is the Design Institue for Emergency Relief Systems - a working subgroup that is part of the American Institute of Chemcial Engineers (since the 1980's).

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources