The centrifugal reverse Brayton cycle (CRBC) is a novel refrigeration cycle that harnesses the conversion of inertial potential energy to pressure energy

enabling efficient compression and expansion processes through centrifugal and centripetal flows of the working fluid within a rotating tube. This offers a promising potential for improving the refrigeration efficiency of conventional gas refrigeration cycles. Building on previous studies

this study employs a thermodynamic model to conduct a parametric analysis of the CRBC to explore the thermodynamic efficiency and loss distributions of the cycle

providing a theoretical foundation for system evaluation and enhancement. Results show that

under the same inlet air temperature

an optimization possibility exists for the heater inlet temperature. The system experiences substantial exergetic losses during the centrifugal isothermal compression flow

adiabatic compression

and centripetal adiabatic expansion flow

each at approximately 20%. Conversely

the exergetic losses during the air-cooling process and the centrifugal adiabatic compression process are comparatively low and demonstrate an inverse relationship with the inlet temperature of the gas heater. The exergetic efficiency of the CRBC reaches 19.2%

which significantly surpasses the values of 8.1% for the CO

2

reverse Brayton cycle

4.9% for the open-air reverse Brayton cycle

and 2.3% for the closed-air reverse Brayton cycle.