Science Briefly contrast an air cycle system and a vapor cycle system. Asked by Dr. John Carmen 12 years ago 1/20/2013 3:46 AM Last updated by anonymous 12 years ago 1/22/2013 12:00 AM
A vapor cycle system generally uses a chemical, such as ammonia, freon. An air cycle system uses only air, and extracts heat from the air after it is pressurized.
