×
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

Max Flow through a pipe

Max Flow through a pipe

Max Flow through a pipe

(OP)
The easiest things to calculate are often the most difficult to find. i'm feeling rather stupid right now, but can't help asking that question.

I'm in the process of sizing instrumentation for a benzene recovery process. out customer requires a hydrocarbon drain to be present, even though we can't use it due to solvent contamination of hc slop. The Drain header needs to be present nonetheless as well as sized correctly. now i found the remark "to be sized for max gravity flow" on this 4" line.

please help, how am i to calcu“late this "max gravity flow"? thanks for bothering,

chris

RE: Max Flow through a pipe

(OP)
never mind. found the solution to this one.

RE: Max Flow through a pipe

you need something called the chezy equation. From memory it is something like

v=C x sq.rt M x I

C is a constant depending on the pipe type, typically 55.

M is the hydraulic mean depth and I is the fall i.e. 1 in a 100 etc.

Apologies if this equation is slightly out, but I am recalling it from 20 years ago a t college.

look for Chezy on the web

Drapes

ps. there are drainage tables published by drainage companies which give flow rates for water at particular inclinations, they might be able to assist

ciao

Drapes

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