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.