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  1. #1
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    Desigining CO2 systems. Where's the literature?



    I am a lifelong Ammonia Refrigeration Engineer and have lots of books and guides on the how-to design systems for NH3, but I am now seeing more CO2 things floating around and wanted to see/read/learn more about how to design these systems. Here in the U.S. the people I've talked to are keeping it pretty much to themselves (understandable as they want to be hired).

    Mainly I'm looking for things like pipe sizing and fluid properties as I know how to do heat loads and go to the manufacturers on equipment. I've looked around, but I suppose just not in the right places.

    Any help would be appreciated.

    Thanks.



  2. #2
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    Re: Desigining CO2 systems. Where's the literature?

    Would Coolpack perhaps help you?
    Engineering Specialist - Cuprobraze, Nocolok, CD Technology
    Rarefied Technologies ( SE Asia )

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    Re: Desigining CO2 systems. Where's the literature?

    I just downloaded CoolPack, and it looks like some really good software, but I didn't see anything for line sizing. It is a big program though and thanks for pointing me to it. I'll hopefully get some use out if it in other areas.

  4. #4
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    Re: Desigining CO2 systems. Where's the literature?

    You can find some information in IIAR(International Institute of Ammonia Refrigeration). However, you should be member of this institute.

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    Re: Desigining CO2 systems. Where's the literature?

    Yeah, I'm in IIAR. They have a number of papers on it, but nothing for the engineering of systems. One thing I did find was a program called Pipe-Flo that we have a license to. It's not cheap, but it does pipe losses/sizing for just about every liquid except lava. Pretty powerful stuff. I was hoping for something along the lines of an excel spreadsheet or a piping chart, but this should do for now.
    Thanks,

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    Re: Desigining CO2 systems. Where's the literature?

    Quote Originally Posted by nflood View Post
    I just downloaded CoolPack, and it looks like some really good software, but I didn't see anything for line sizing. It is a big program though and thanks for pointing me to it. I'll hopefully get some use out if it in other areas.
    There is a section in CoolPack which provides line-size estimates - auxiliary calculations.
    Engineering Specialist - Cuprobraze, Nocolok, CD Technology
    Rarefied Technologies ( SE Asia )

  7. #7
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    Re: Desigining CO2 systems. Where's the literature?

    What ever happened to old fashioned number crunching for pressure loss? The fluid properties should be in the ASHRAE manuals.
    If all else fails, ask for help.


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    Re: Desigining CO2 systems. Where's the literature?

    Hi nflood,

    For line sizing (and component selection) you can use the DIRcalc 1.18 software:
    http://www.danfoss.com/BusinessAreas...ls/DIRcalc.htm

    General information can be found here:
    http://www.danfoss.com/co2

    If your looking for industrial refrigeration applications, you can have a look here:
    http://www.danfoss.com/BusinessAreas...plications.htm

    If you're more into supermarket refrigeration, you can have a look here:
    http://www.danfoss.com/NR/exeres/C8F...32418B2C31.htm

    Not that I want to push you towards a certain brand , but this is good basic and detailed information about CO2, it's behaviour and available components and controls.

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    Re: Desigining CO2 systems. Where's the literature?

    Thanks. I've downloaded the information/program and played with it a bit. Looks like some pretty good stuff. Thanks alot!

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    Re: Desigining CO2 systems. Where's the literature?

    The Institute of Refrigeration in the UK has a Code of practice for Carbon dioxide system design - have you tried that. Its not too expensive and you can download it from their shop at ior

    The International Institute of Refrigeration in Paris also has books in english on properties of carbon dioxide but you have to order by post.

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    Re: Desigining CO2 systems. Where's the literature?

    R744.Com website also has useful information

  12. #12
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    Re: Desigining CO2 systems. Where's the literature?

    software called micropipe from whiterosesoftware

  13. #13
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    Re: Desigining CO2 systems. Where's the literature?

    Go to the R744.com site and search for NARECO.
    This is a online course.
    Tegards

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    Re: Desigining CO2 systems. Where's the literature?


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    Re: Desigining CO2 systems. Where's the literature?

    Nareco is the top literature for CO2.

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