CFD ANALYSIS OF STEAM EJECTOR WITH DIFFERENT NOZZLE DIAMETER

Abstract

Devices like steam ejectors use the momentum from high-speed main jets to entrain and accelerate a medium that is stationary or moving at a low rate of velocity. Maintaining vacuum, eliminating air from condensers, boosting thrust, and raising vapour pressure are some of the most significant duties of an ejector. By shrinking the size of a traditional multi-stage evaporator, this steam ejector is transformed into a thermal compressor. Analysis of the impacts on the main fluid pressure, mass flow rate and Mach number was carried out The mixing process inside the ejector may be better understood using the Mach number contours. The nozzle diameter of the steam ejector is varied in this project because Determined pressure drop, velocity, and other parameters by varying the pressure rate of the steam ejector. The main fluid's temperature, mass flow rate, and heat transfer rate are calculated using CFD. The Mach number, pressure drop, heat transfer rate, and mass flow rate rise when the nozzle diameter and condenser pressure are increased, as shown by the CFD study.