The Advanced Gas-cooled Reactor (ARG) uses carbon dioxide gas to transfer heat from the nuclear fission core to the water boiler for steam generation. The moisture content is kept low to avoid corrosion damage, and also so that the moisture monitoring will act as a leak detector. Usual moisture: <-70°C.
SEE ALSO - NITROGEN. Although some breweries do not bother to recover the carbon dioxide gas produced as a by-product of the fermentation process, the more efficient operations do. The gas is then dried to prevent damage to the compressors, and used to carbonate the beer after fermentation. The excess gas is usually sold as an extra 'cash crop'. Usual moisture: <-50°C.