Evaluation of the ejector two-stage compression refrigeration cycle with work performance from energy, conventional exergy and advanced exergy perspectives

Low temperature cold chain is the top priority of logistics development at this stage. CO2 (carbon dioxide) refrigeration system widely used. However, low efficiency biggest obstacle to its development. In research work, EES (Engineering equation solver) used simulate system, which in thermodynamic modeling and calculation, a novel trans-critical cycle with ejector for low-temperature storage proposed. The energy conventional exergy model are established, advanced established based on model, actual performance analyzed, optimization potential components analyzed through commonness two analysis methods. results show that destruction each component largest highest both models. After studying influence main parameters performance, it found there an optimum intermediate pressure gas cooler maximize efficiency. According change outlet has greatest ejector.