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!

*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.

Jobs

mixing time calculations of jet mixers

mixing time calculations of jet mixers

(OP)
hello

how can you calculate the time mixing of 250 m3 storage tank with a high viscosity liquid (350 cp)using the jet mixer?


Good luck,

mohsen

RE: mixing time calculations of jet mixers

The starting point is that you must know the amount of flow that you are putting through the jet mixer.

Regards
Ashtree
"Any water can be made potable if you filter it through enough money"

RE: mixing time calculations of jet mixers

(OP)

flow rate is 60 m3/hr

RE: mixing time calculations of jet mixers

Have you selected a jet mixing correlation? If so, please share it.

Good luck,
Latexman

To a ChE, the glass is always full - 1/2 air and 1/2 water.

RE: mixing time calculations of jet mixers

(OP)
No, the available correlations didnt considered viscosity parameter and used for turbulent regime.

RE: mixing time calculations of jet mixers

I have experienced the same problem. I ran the numbers on your tank in my spreadsheet. Jet mixing works best when the jet Reynolds Number and tank Reynolds Number are both turbulent. The best I could do was the tank was laminar and the jet was transitional. It doesn't look good for jet mixing. It's too far removed from the design basis. Have you considered a mechanical agitator?

Good luck,
Latexman

To a ChE, the glass is always full - 1/2 air and 1/2 water.

RE: mixing time calculations of jet mixers

(OP)
I didnt considered agitator.in my study, jet Reynolds Number is approximately 2000.based on your experiencs, which one equation can I apply for solution of this problem, do you have applicabe document to help me?
Good luck,
mohsen

RE: mixing time calculations of jet mixers

Yes, I got a jet Reynolds Number of 1480 for a 1.61 inch nozzle outlet diameter. Our design guidelines on jet Reynolds Number are > 10,000, if possible. No, my spreadsheet/technology belongs to the company and their fluid flow technologist. The reference given is Mixing in the Process Industries 2nd Ed. by Harnby, Edwards, and Nienow.

Good luck,
Latexman

To a ChE, the glass is always full - 1/2 air and 1/2 water.

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


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