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Thread: Volume vs. Pressure

  1. #1
    Associate Engineer
    Join Date
    Apr 2011
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    Volume vs. Pressure

    ipt>
    I'm sure there is an easy equations for this but I just can't seem to remember.

    I have a 8" (diameter) fan producing 800 CFM. The diameter is being reduced down to 2.5".
    I would like to know how the diameter difference is going to change the flow rate and pressure.
    Thanks for any help or guidance.

    Anthony

  2. #2
    Project Engineer CCR5600Design's Avatar
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    Feb 2011
    Location
    Central USA
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    Is the reduction to 2.5" going to be on the intake side of the fan, or on the exhaust? Also, at what distance will the 2.5" diameter be from the fan? Will it be a smooth transition from 8" to 2.5" or will it be an abrupt transition?


    Ron

  3. #3
    Associate Engineer
    Join Date
    Apr 2011
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    2
    The transition will be smooth and on the exhaust side about 22 inches down the line.

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