Investigation of Transcritical Carbon Dioxide Power Generation System Based on Vortex Tube

In this paper, a transcritical carbon dioxide power generation system based on vortex tube is studied, which has the advantage of self-condensation dioxide. The thermodynamic performance was investigated by establishing mathematical model. results showed that under fundamental working conditions, could output net 271.72 kW, and thermal efficiency as well exergy reach 7.38% 27.09%, respectively. Exergy analysis turbine had greatest loss among system’s components, followed tube, pump, heater cooler. Parameter increasing outlet pressure inlet temperature can improve system. addition, improvement in component’s most beneficial to performance, turbine’s impact. Carbon be effectively liquified expanding it its liquefaction ratio increases with decrease tube’s increase pressure.