Performance Investigation of Transcritical Carbon Dioxide Refrigeration Cycle

Carbon dioxide has a high critical pressure and low critical temperature that is 7.36 MPa and 31.1oC respectively causing the cycle to work in a transcritical nature. At this state, heat is rejected at a supercritical pressure and heat absorption occurs at a subcritical level. Above the critical properties, the pressure and temperature of CO2 becomes independent of one another. Thus, in this region, specifying the operating conditions would be harder.