Experimental study on effect of operational parameters on ejector performance

Develops an experimental table, and tests three different dimensions of ejectors with CO2 as the fluid. Analyses the influence of pressure and temperature of the working fluid and the secondary fluid on the performance of ejectors. The results show that when the pressure of the working fluid ranges from 8 to 10 MPa, the entrainment ratio increases at first and flats afterwards with the increase of working fluid pressure, and reaches its peak when the pressure of the working fluid is 9.6 MPa. When the pressure of the secondary fluid ranges from 2.4 to 2.9 MPa, the entrainment ratio increases at first and flats afterwards with the increase of secondary fluid pressure, and reaches its peak when the pressure of the secondary fluid is 2.8 MPa. The entrainment ratio increases with the increase of temperature of the working fluid and the secondary fluid.