N2 - In this work, a new dual-evaporator CO2transcritical refrigeration cycle with two ejectors is proposed. In this new system, we proposed to recover the lost energy of condensation coming off the gas cooler and operate the refrigeration cycle ejector free and enhance the system performance and obtain dual-temperature refrigeration simultaneously. The effects of some key parameters on the thermodynamic performance of the modified cycle are theoretically investigated based on energetic and exergetic analysis. The simulation results for the modified cycle indicate more effective system performance improvement than the single ejector in the CO2vapor compression cycle using ejector as an expander ranging up to 46%. The exergetic analysis for this system is made. The performance characteristics of the proposed cycle show its promise in dual-evaporator refrigeration system. L1 - http://www.czasopisma.pan.pl/Content/100833/PDF/03_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/100833 PY - 2017 IS - No 1 EP - 62 DO - 10.1515/aoter-2017-0003 KW - CO2 KW - energy KW - refrigeration KW - ejector KW - exergy A1 - Ezzaalouni Yathreb Abdellaoui A1 - Lakdar Kairouani Kairouani PB - The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences DA - 2017 T1 - Thermodynamic analysis of a new dual evaporator CO2 transcritical refrigeration cycle SP - 39 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/100833 T2 - Archives of Thermodynamics