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Air compressor questions

  1. May 9, 2005 #1
    i have a couple questions about air compressors..
    1) how dependant is psi/cfm on size? and can this barrier be overcome by a greater input force/speed?
    2) which is reliant on speed the compressor is turning, flow rate or pressure?
     
  2. jcsd
  3. May 9, 2005 #2

    Cliff_J

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    1) CFM is going to be dependent on size and speed (minus losses that could be summed up in volumetric efficiency) and since the force needed is going to be roughly constant at certain pressure levels the speed is really a measure of power, how fast is that work being performed.

    2) Flow would be directly affected by the speed. But also pressure since its a matter of how much restriction there is to the flow that creates the pressure, without restriction there is no pressure.
     
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