×
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 control using penstock

Flow control using penstock

Flow control using penstock

(OP)
Hi All,

I Have a Plc appliction to write for existing equipment to control the flow of Effluent to a Screen via an Open Channel and Controlled Via a Penstock operating on 4-20mA.

I could really do with help on the calculations side as the Pv(Flow Meter 0-400L/s is upstream of the penstock), the channel is open and square( dims not to hand just yet).

So i have a Pv Flow Meter 0-400L/s, Cv Penstock 4-20mA, Sp of say 50-200L/s.

Hope this is clear enough?

RE: Flow control using penstock

If you have an open channel with rectangular cross section, you can drop in a parshall flume. Parshall flumes are available as a fiberglass shell that can be relatively easily installed in the chanel.  Level in the flume is a function of flowrate, but it is an equation with a weird exponent.  

http://www.flowmeterdirectory.com/flowmeter_artc/parshall.html

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