A Performance CFD Investigation of Steam Ejector with Different Nozzle Diameter

Abstract

A steam ejector is a device which makes use of the momentum of a high- pace number one jet of vapor to entrain and accelerate a medium in still or at a low speed. The vital functions of an ejector include maintaining the vacuum evaporation, doing away with air from condensers as a vacuum pump, augmenting thrust, and growing vapor stress as a thermal compressor. The thermal compressor is a steam ejector, however, it utilizes the thermal strength to reinforce the overall performance by means of decreasing the scale of a conventional multi-degree evaporator. The supersonic steam ejector is extensively utilized in steam energy structures inclusive of refrigeration, wood drying gadget, papermaking machine, and steam turbine. In this paper the Computational Fluids Dynamics (CFD) method became hired to simulate a supersonic steam ejector, SST okay-w turbulence model became followed, and each actual fuel model and the ideal gas version for the fluid belongings had been considered and as compared. The blending chamber attitude, throat period, and nozzle go out function number one pressure and temperature results on entrainment ratio had been investigated. The Static pressure to the boiler temperatures 120^oC,130^oC, and one hundred forty ^oC. In this mission the 2D  version is achieved in PRO-E software and analysis completed in ANSYS 14.5