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


Design of centrifugal blowers

Design of centrifugal blowers

Design of centrifugal blowers

Somebody please tell me the maximum possible pressure ratio achievable by a centrifugal blower at minimum flow rate and lowest possible RPM.

RE: Design of centrifugal blowers


RE: Design of centrifugal blowers

think the figure given by compositepro seems in good agreement with empirical data/experience.
It is a good starting point to input in your model.

"If you want to acquire a knowledge or skill, read a book and practice the skill".

RE: Design of centrifugal blowers

Thanks a lot for your answers. In fact I read somewhere that the pressure ratio of a blower increases as the flow rate is decreased. But as far as I know, higher flow rate should give higher pressure rise at the same RPM. So, I am a bit confused regarding this. I think the blower gives higher pressure rise at lower flow rates once it has been designed due to the throttling effect, but the moment we are in the design phase, the pressure rise should increase with increase in flow rate. Please correct me wherever I am wrong.

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!


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