On the Performance Characteristics of Steam Ejectors

Abstract

Steam ejectors can have three basic kinds of performance characteristics according to the outside conditions of ejector-driving steam pressure, back pressure of diffuser and flow rate of entrained fluid. From the experimental studies on the flow state in ejectors, it has been shown that the three performance characteristics are closely connected with the types of the flow state, respectively, and the existing ranges of these characteristics can be simply expressed by the outside conditions of ejector. The results of experiment on the effects of the various dimensions of ejector are also presented.