Abstract
An ejector can recover fluid energy of the driving flow in the expansion process and transfer this energy to that which needs to compress the suction flow. By using ejector instead of the expansion valve, the efficiency of the compression type refrigerator is expected to be enhanced greatly. Until now, lots of researches have been done with regard to the single-phase flow ejector. But, the two-phase flow ejector which needs for the compression type refrigerator have not been examined sufficiently. Therefore this paper constructs the simulation model of the two-phase flow ejector and investigates the characteristics of this ejector with the simulation. As a result, it was clarified that working point exists to maximize the performance of the two-phase flow ejector.