×
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

FLOW EFFICIENCY in PIPEPHASE

FLOW EFFICIENCY in PIPEPHASE

FLOW EFFICIENCY in PIPEPHASE

(OP)
Hi all,

please could someone help me out with any useful tip on how to specify the flow efficiency in PIPEPHASE.  i am modelling a 9km flowline and it seems the flow efficiency affects pressure drop to a large extent.

thanks guys,

Buchi

Buchi

RE: FLOW EFFICIENCY in PIPEPHASE

In the field of fluid or thermal-hydraulics, what is flow efficiency?

RE: FLOW EFFICIENCY in PIPEPHASE

The flow efficiency is a "fiddle factor" used to tune the performance of a gas pipeline to fit with the calculations. In effect, it is a correction to the friction factor - maybe that is too much of a generalisation?

You can read about it in "A Tutorial on Pipe Flow Equations" by Donald W Schroeder. See
http://www.psig.org/papers/2000/0112.pdf

In my opinion it belongs to the past and with "modern" correlations you do not need this. Unfortunately I do not know the PIPEPHASE program. If it offers you a choice of models, change it to something more modern. Equations  like "Panhandle A" seem to be still used in the natural gas industry, but they are just special cases of the general equations you will find in modern fluids handbooks. Maybe I am out of line, but I would drop all this historical stuff and use the modern standards. Any comments from people in the natural gas industry?

RE: FLOW EFFICIENCY in PIPEPHASE

Try this:
access the device data worksheet for the referenced link via the GUI.
by hitting the edit button on this worksheet, Pipephase comes up with all the link data (supplied and default). One of these is the flow efficiency expressed as a percentage which can then be typed in.

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