Effects of Variation of Operating Parameterson the Performance of Ejector: A Review

Abstract

The purpose of this review is to analyze the representation of the ejector based on geometrical parameters like primary nozzle, mixing section and diffuser section. In the current era the ejector system is used to entrain low grade energy (secondary flow) with the help of primary supersonic flow. Different types of fluids are used for different application of ejector. The main role of supersonic nozzle is to entrain the secondary fluid at inlet in the mixing chamber. Researchers have done huge work in the field of ejector. The major parameters of mixing chamber are area, length, nozzle exit position (NXP) and nozzle divergence angle to improve the performance of the ejector without shock waves in mixing section. Diffuser is used as booster to increase the pressure. The broad scope of improvement has been seen in the nozzle and mixing section. Experimental as well as numerical based investigations have been studied to identify the performance.