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

ISO 5167, error calculation for orifice system

ISO 5167, error calculation for orifice system

ISO 5167, error calculation for orifice system

In my system, orifice flow meter is installed at suction side of Blower. Following ISO 5167, all requirements are satisfied except downstream distance. It is required at 4D but in our system it is 3.3D.
This orifice flow meter is used for anti-surge control of Blower. It does not require high accuracy of flow meter. Therefore, I should calculate error of our orifice system with downstream distance of 3.3D (not meet ISO requirement)
I have read ISO 5167, 5168 but still can not understand how to calculate error for this case. Anyone knows about it, please instruct me.
Thank you

RE: ISO 5167, error calculation for orifice system

Most head type flow meters address a "fully developed flow profile".  The standards for selecting orifice plate upstream and downstream diameters are based upon this requirement.  Most of us would only suggest that the accuracy and repeatability would be dimenshed by non compliance with the recommendations.  Some of the flow element manufacturers may be able to make predict with all of the specific size details.

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


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