Simulation of Ejector Flow Behavior Which Produce Vacuum in Power Plants Condenser

Abstract

The ejector is a device that been used to release the vapor and gases, or used to suctioned fluid from place to another been pumped to. Power plants condenser need this equipment to release gases and uncondensate steam, the ejector available in Kosti Thermal Power Station (KTPS) is not sufficient for produce the required vacuum for releasing gases and vapor. In this research the ejector was studied and some modifications to it like change is done the in throat length and divergent length, also motive steam pressure also was changed. The results were obtained by using Computational Fluid Dynamics analysis software (ANSYS) was found acceptable. The ratio between throat length, divergent length and motive steam pressure found to effects on suction pressure and performance of the ejector.