R03 -- Carbon Dioxide Refrigeration Systems - (I-P)
Carbon dioxide (R-744) is one of the naturally occurring compounds collectively known as natural refrigerants. It is nonflammable and nontoxic, with no known carcinogenic, mutagenic, or other toxic effects, and no dangerous products of combustion. Using carbon dioxide in refrigerating systems can be considered a form of carbon capture, with a potential beneficial effect on climate change. It has no adverse local environmental effects. Carbon dioxide exists in a gaseous state at normal temperatures and pressures within the Earths atmosphere. Currently, the global average concentration of CO2 is approximately 390 ppm by volume.Chapter Table of ContentsApplications