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  1. #1
    Join Date
    May 2011
    Location
    India
    Age
    32
    Posts
    72
    Rep Power
    7

    Duct losses determination



    Hi,

    I have the duct sized with equal friction method, and now I need to determine the losses.
    I'm not sure about the calculation, how ever when I reffered the Carrier handbook, it says to determine the equivlent length and to multiply it with the friction rate (which is assumed constant through the entire duct length). However, with another calcultion, the friction rate is determined for the varying sizes of the duct. I am confused between the two.
    Any suggestion?

    I appreciate an example in FPS unit!

    Thanks
    Nevin.



  2. #2
    Join Date
    Oct 2001
    Location
    Nottingham UK
    Posts
    5,061
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    42

  3. #3
    Join Date
    Mar 2008
    Location
    England
    Posts
    212
    Rep Power
    13

    Re: Duct losses determination

    For a simple to understand guide Google "Woods Guide to Fan Engineering" you can download the book as a PDF file and print it if you prefer.
    Location, United Kingdom

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