This study proposes an absorption-compression cascade refrigeration cycle. The cycle consists of a high-temperature stage combined absorption-compression refrigeration cycle

which is driven by the waste heat of the internal combustion engine

and a low-temperature stage CO2 subcritical compression refrigeration cycle

which is driven by power. The performances of different refrigerant pairs in the cycle are compared

and the influence of key parameters on the performance of the cycle is further discussed. Finally

an economic analysis is performed. The results show that under the same condensation temperature of 40 °C and evaporation temperature of ?35 °C

R124-DMAC/R744 exhibits excellent performance with a coefficient of performance of 2.864. It is an ideal working pair

and the annual total cost of the system is 15 150.14 USD.