The major challenges in CO2 refrigeration involve the relatively high working pressures. The supercritical portion of the transcritical cycle takes place above 1,067 psia. The phase diagram for CO2 is ...

Despite its terrestrial abundance and astrochemical significance, many aspects of the phase diagram of solid carbon dioxide remain uncertain or unknown. The observed transition pressures from ...

This phase diagram for CO 2 shows at what pressures ... as well as additional inlet and outlet piping. Supercritical carbon dioxide is optimal for powering turbines because it doesn’t go through ...