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  1. #1
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    Thumbs down Duct Fittings Loss Coefficients



    hai Friends
    I want to know about Duct Fittings Loss Coefficients. Normaly i am collecting all data from ASHARE hand book but i need one easy formula any body can help this problem???????



  2. #2
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    Re: Duct Fittings Loss Coefficients

    I also want many, many things.
    Most of them I got when I say "please".

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    Re: Duct Fittings Loss Coefficients

    hallo friends
    Actully i dont know more things about SP Calculation But i Made One Exel Sheet For SP Calculation. any way i will upload that exel sheet please try and tell me commands. In Straight Duct Pr. loss You Can Calculate from Air flow (cfm),Duct size(width" & height") & Duct Length. , And another section for duct fittings (Elbow,Transition, grills, diffusers, branches,Tee .etc. .....) you must put cfm,sizes and loss coefficients ( loss coefficients you calculate from ASHARE Hand book) Please Try AND tell Me the Commends
    Attached Files Attached Files

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    Re: Duct Fittings Loss Coefficients

    I am not aware of any formula which will give you fitting pressure loss.
    You must fill your Excel sheet with all equivalent lengths for all possible fittings and then choose between them when calculating.

    Or you could use specialized software like Autodesk Revit MEP which makes all calculations while you are drawing ducts.

  5. #5
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    Re: Duct Fittings Loss Coefficients

    thanks nike!!!!, i have that equivalent length methods. but somebody talled me more accurate calculation is this one that means i am serching loss coeiff. formulas

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  7. #7
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    Re: Duct Fittings Loss Coefficients


  8. #8
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    Re: Duct Fittings Loss Coefficients

    hi nike123
    i check this site this is useful for me
    thanks

  9. #9
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    Re: Duct Fittings Loss Coefficients

    hallo friends,
    i have 1997 ASHARE Hand Book Duct Design(Chapter 32) any Body WANTS that Please sENd PM

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