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

Motionless Mixer Calculations

Motionless Mixer Calculations

Motionless Mixer Calculations

Hi Guys

I am working on Dental Impression Dispensing System. It consist of two impression material and Tip to mix the two materials. Tip has 12 mixing elements like motionless mixer. I have the following data:

Material viscosity:  741000 centipose
Volumetric flow rate: 0.0177 gallon/minute
Mass flow rate: 10.32 pound/hour
Inside diameter of mixer: 0.25inch
Mixing elements: 12 (each element is spiral, opposite to each other)

I need to calculate the pressure drop (delta P). If someone know how to calculate the pressure drop in these case, i will really appreciate it.


RE: Motionless Mixer Calculations

The answer to your question depends on the specific design of the static mixer elements.  The shape of the spiral,( sharpness of the curves and transitions) will affect the pressure drop through the mixing elements.  If possible, your best bet is to contact the manufacturer of the mixer with the information on your application.  They should be able to provide you with the information you need.

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