Contact US

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!

*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

Pipeline Slugging Forces

Pipeline Slugging Forces

Pipeline Slugging Forces

Does anyone have any suggestions where I could find "guidelines" for designing pipelines subject to slugging forces??.

RE: Pipeline Slugging Forces

Are asking about liquid pipeline pressure surges when a valve is suddenly closed?

RE: Pipeline Slugging Forces

Not quite.  I have a cross-country pipeline, that will have two-phase flow.  I have been given lots of friendly advise from co-workers on designing for slug flow (ie. my two fhase flow seperates into gas and liquid during its travel through the pipeline, then as it transits through an expansion loop I get the water hammer effect on the elbows)

RE: Pipeline Slugging Forces

I've been in the gas pipeline industry for 25 years and have never run across water hammer on two phase flow.  You may have to calculate the velocities of the liquid and gas phase to see if there is an errosion problem (especially if this is a production line that could have sand or solids.  The gas phase will act as the shock absorber.  Normally during the design of the line, sudden changes in pipe direct will have some momentum forces that must be absorbed.  Most pipeline companies will pour concrete anchors on pig recivers risers and above ground risers bends to hold the line in place.  This is normally for 6" and larger lines.

Out of curiosity, are the expansion bends there for thermal expansion?  I've seen what looks like 25R radius bends in lines that lesson the momentum effect of the slug or pig in a pipeline as it goes through a long above piping where thermal expansion was problem.

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! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close