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Thread: sandwich panel

  1. #1
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    sandwich panel



    Hi to every one

    I need some speculations on the expected thickness of the PU panels used in cold stores at ambient temp of 45C for at storage temps of :
    5
    -5
    -25
    -45
    Thank you



  2. #2
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    Re: sandwich panel

    http://www.isobar.be/productinfobest...dophanging.pdf
    Horizontal ambient en vertical the room temperature.
    It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.

  3. #3
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    Re: sandwich panel

    Thank You Peter 1
    Are number after D in cm ? The file is not in English .

  4. #4
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    Re: sandwich panel

    Indeed, 8, 10...cm and temperatures in °C.
    Forgot to say this.
    And the language is Dutch, sorry haven't anyhing better and that's also the one I'm using.
    It gives you anyhow at least an idea.
    It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.

  5. #5
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    Re: sandwich panel

    Thank You Peter 1.
    Highly apreciate your Help

  6. #6
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    Re: sandwich panel

    Quote Originally Posted by afak View Post
    Hi to every one

    I need some speculations on the expected thickness of the PU panels used in cold stores at ambient temp of 45C for at storage temps of :
    5
    -5
    -25
    -45
    Thank you
    we use

    60mm, 80mm, 125mm & 150mm thick PUF panels typically for such temperatures.

    Infact Asharae gives a specific formula for considering the thicknesses & these values are just matching that formula

  7. #7
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    Re: sandwich panel

    What's that formula then?
    It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.

  8. #8
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    Re: sandwich panel

    I am scanning that out & shall try & post it on the forum site

  9. #9
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    Re: sandwich panel

    Thank you smpsmp45 for your info. Pls post it at your earliest.

    Hi! afak, You can find more info from the mfg of sandwitch panel in China. www.bingshaninternational.com/main_e.htm

    Suny
    Last edited by suny; 14-08-2007 at 12:50 PM. Reason: To add more information

  10. #10
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    Re: sandwich panel

    That scanned copy is almost invisible. I have prepared that in PDF format. Ashrae recommends R values for Insulation. One can easily derive the Insulation Thickness based on the Thermal Conductivity of the insulation material.
    Attached Files Attached Files

  11. #11
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    Re: sandwich panel

    dont forget other factors as in fire ratings,thickness needed to span wall panels or top hat sections,exposure to sunlight,to name a few,as a rough guide,100mm for chillers, 150mm,freezers,200mm for any lower,thats using polyurathane or P.I.R. not rockwool or polystyrene.

  12. #12
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    Re: sandwich panel

    Are these thicknesses used to the roof,walls,ground equally?

  13. #13
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    Re: sandwich panel

    only on small rooms that are self supporting,meaning something like a 3mtr cube ,but when you start going above that the panels need to be thicker to add strength,after 6/7 mtr you need to be looking at top hat sections suspended from the roof steelwork by threaded rods.sizes only as a guide.

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