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Thread: Need Help! How to calculate the air pressure drop while sizing a fan??

  1. #1
    Associate Engineer
    Join Date
    Dec 2013
    Posts
    2

    Need Help! How to calculate the air pressure drop while sizing a fan??

    Hi all, I was assigned to design a liquid cooled system to cool down 18kW of power loss from an Inverter system.
    I planned to use several automotive radiators connected in parallel or series to do the job, is anyone have the experience on calculating the air pressure drop when I placed a number of radiators in parallel (side-by-side) / series (back-to-back)? Also, what should I take note if I wanted to place the fan in front of the radiators (blowing) instead of putting behind it (sucking)?
    Really appreciate your kind advises.

    Regards,
    Sean

  2. #2
    Lead Engineer
    Join Date
    Aug 2013
    Location
    Houston TX USA
    Posts
    421
    I recommend you contact the suppliers of these units. Below is a link to a mfr website that might give you a starting point.

    http://www.lytron.com/Industries/Power-Generation

  3. #3
    Associate Engineer
    Join Date
    Dec 2013
    Posts
    2
    Hi JAlberts,

    Thanks for your comments and also the link.
    I did verify with the supplier before, but they replied that they never test their radiator in parallel (side-by-side) / series (back-to-back) which are unusual for automotive application.

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