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Joe Merchant
- Greensboro, NC
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Centrifugal Pump Head is a Square Relationship
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I have been arguing with a fellow engineer that the head developed by a centrifugal pump is the square of the rotational speed due to the physics of turbomachinery. He argues it is because the system…
Started this discussion. Last reply by Jack Condon Feb 3.
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The question requests a theoretical answer, not an empirical one. generated head in a centrifugal is a function of the diameter of the impeller and the rotational speed of that impeller from Euler's pump equation, which says head is equal to velocit…
Very basic for centrifs. why this for discussions?
Nice! Thanks amharyatno.
Bellow is picture of relationship between pump impeller type in relation with specific speed, flow, head, power and efficiency.
I take it from www.lightmypump.com
For being practical this picture is a good explaination for the pump type selection.
Thanks again Ian. I did not realize how intertwined the two forums are. I appreciate everybody's input.
Good response from BigInch in the other forum.
Thanks Ian. You know how it is - I will need absolute proof we orbit the sun to convince this guy!
The head changes as the square of any speed change or impeller diameter change. Nothing new and no arguement to be had. Not sure what your fellow enginering is trying to say / prove - just point him in the direction of any basic pump book.
I have been arguing with a fellow engineer that the head developed by a centrifugal pump is the square of the rotational speed due to the physics of turbomachinery. He argues it is because the system curve follows a Delta P ~ Q^2 relationship. I bel…
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Comment Wall (3 comments)
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- At 1:41pm on December 11, 2009,
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