×
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

Erosional Velocity in Nozzels

Erosional Velocity in Nozzels

Erosional Velocity in Nozzels

(OP)
I have to calculate erosional velocity through an inlet nozzel of a flare knock out drum. I am not sure if it has to be calculated the same way as we calculate for the pipelines. Can someone give me some tips/ or reference where i can find the related information.
thanks

RE: Erosional Velocity in Nozzels

Why would you think the nozzle would be any different to the pipeline, erosion wise?

RE: Erosional Velocity in Nozzels

Just put on a wear plate at the opposit end of the nozzle.  Since a FKO drum is PWHT then put on a jig so the wear plate can be removable if required.  

RE: Erosional Velocity in Nozzels

(OP)
Thanks for your replies, i dont think that its different from the pipeline,I calculated it according to API RP 14E. but someone senior told me that it will be different, thats why i was not sure.I couldn't find it in ASME VIII or B31.3. I found research papers " Erosion in Elbows in HC Production" (http://www.hse.gov.uk/research/rrpdf/rr115.pdf) and "An Alternative to API 14E Erosional Velocity Limits for Sand-Laden Fluids" by Mamdough M Salama.They were found to be very helpful.
--
Mairaj

RE: Erosional Velocity in Nozzels

mmairaja,

The TEMA code (for shell-and-tube heat exchangers)has limitations on fluid momentum which affects nozzle sizes. When the momentum criteria is exceeded, TEMA requires impingement plates on tube bundles.

You typically end up with a limit of 3-5 ft/second for the fluid.

Although this does not specifically apply to your vessel, it is reasonable to argue that if you conditions meet the TEMA criteria, they should be acceptable for your case.


My opinion only ..

-MJC

  

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