×
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

measuring flow rate in a pipe

measuring flow rate in a pipe

measuring flow rate in a pipe

(OP)
how do you measure/calculate for flow rate of water in a pipe? assuming you know its pressure and the pipe diameter? thanks.

RE: measuring flow rate in a pipe

If you know enough about two points in your system, pipe characteristics, fluid properties, elevations, etc.... you should be able to calculate the velocity using the Mechanical Energy Balance equation.  You should be able to find it in Perry's, McCabe Smith, or many other common engineering references.  You could always take a shot at just Googling it too.

To actually measure it would require some sort of flow element like an orifice plate or a rotameter, or there are non-intrusive methods like clamp on ultrasonic devices.  

Provided its a non-critical line and since its just water (assuming its not sour water, waste water, really high pressure or some other kind of nasty stream) you could also just disconnect it and use the "calibrated bucket" and stopwatch method.

RE: measuring flow rate in a pipe

honche725:

With all due respect, do you have a chemical engineering degree?

Milton Beychok
(Visit me at www.air-dispersion.com)
.

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