Experimental research on two-stage steam-water jet injector performance

In order to improve the performance of the injector, two-stage steam-water jet injector was proposed. The investigation of the injector was carried out experimentally, along with the parametric study that considered the effects of different operating parameters on the performance. The results show that there exists a maximum in the effect of inlet steam pressure on the discharge water pressure. The discharge water pressure firstly increases and then decreases with the increase of inlet water mass flux. The increase of inlet water temperature leads to the fast degradation of the injector performance. The results also show that experimental results are in good agreement with calculated values. The experimental data agree with the calculated predictions within +/- 15%.