Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Rotary (Roots) Blower

  1. Nov 11, 2014 #1
    Hi,

    I would like to know how the RPM of a root blower will affect the CFM and pressure created by the blower. The confusion that I have is this: Generally when RPM is decreased, both the CFM and pressure decreases. But according to Bernoulli's principle, should not one decrease and the other increase?

    Pls help.
     
  2. jcsd
  3. Nov 11, 2014 #2

    Baluncore

    User Avatar
    Science Advisor

    A Roots Blower is a positive displacement pump so CFM multiplied by Pressure will be proportional to RPM.

    What has Bernoulli's principle got to do with a positive displacement pump ?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Rotary (Roots) Blower
  1. Blower moter requirement (Replies: 23)

  2. Centrifugal blower ? (Replies: 7)

  3. Rotary Piston (Replies: 22)

  4. Rotary Actuator (Replies: 9)

  5. Blower calculation (Replies: 1)

Loading...