×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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

Electromagnetic Flow Metering of CO2

Electromagnetic Flow Metering of CO2

Electromagnetic Flow Metering of CO2

(OP)
Hello,

Currently working on the selection of a flow meter to measure a flow mix of water+amine+CO2.

I am currently considering Coriolis as the first option yet I have some lines larger than 16" and it's not economically attractive to use Coriolis for this applications.
I have done some research on using Ultrasonic but CO2 is challenging since it absorbs the ultrasonic wave and induces errors in the measurement.

This leads me to electromagnetic flow metering. The stream is a liquid, of course, yet I have not seen much lessons learned on the usage of electromagnetic flow meters for CO2.

Any thoughts?

Regards.

RE: Electromagnetic Flow Metering of CO2

Electromagnetic flow metering is for conductive liquids only. CO2 gas does not qualify.

Thermal dispersion is the ideal inferred mass flow sensor for clean, dry gases. Thermal dispersion does not work well with wet gases. Thermal dispersion has a low pressure drop. It excels at lower velocity, lower flow rate measurements; in fact the real challenge is high flow rates that can exceed the ability of the instrument to source sufficient heat. For large diameter pipes there's an insertion style to keep the cost down, rather than a spool piece.

Look at vendors like Sierra Instruments, FCI (Flow Control Intl), Kurz, Magnetrol or Thermal Instrument.

RE: Electromagnetic Flow Metering of CO2

My mistake, somehow I read the original post as flow measurement of CO2 gas flow, not a biphase mix of liquid water and non-soluble amine with some CO2. I don't know how I missed the real statement, but I did.

Whether the CO2 gas is dissolved in water or suspended as bubbles the challenge is the bi-phase flow measurement.

Thermal dispersion is not likely a solution unless the water/amine thermal conductivity can be determined, but it won't be on the normal tables.

Maybe a major player like MicroMotion can advise on the suitability of coriolis for bi-phase flow measurement.

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


Resources

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