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

Hello, Can we estimate flowrate

Hello, Can we estimate flowrate

Hello, Can we estimate flowrate

  Can we estimate flowrate of a fan with its kilowatt and/or diameter and/or "water volume of it" ?

RE: Hello, Can we estimate flowrate

yes i think it is possible to estimate operating capacity of the fan from driver power input info.\
If you have a manometer reading available at the discharge duct, (fan developed pressure) please use the following equation I have taken from Steam Plant Calculation Manual p-156 by V Ganapathy.\
BHP = q x Hw/(6356nf)
BHP Fan Break Horsepower HP\
q air flow acfm\
Hw developed head inches of water\
nf fan efficiency from fan curve\

further BHP = KW motor x motor efficiency typical 90%\
Hope this would suffice. Regards Ansari

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


White Paper - How ESI is Helping Move New Medical Device Product to Market Quicker & More Cost Effic
Early Supplier Involvement has long been a strategy employed by manufacturers to produce innovative products. Now, it almost seems like a necessity. Because decisions made in the design phase can positively affect product quality and costs, this can help add value to OEM bottom lines. This white paper will discuss many facets of ESI, including why it’s so valuable today, what challenges limit the benefits of ESI, how cost is impacted, 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