PERFORMANCE OF WATER EJECTOR FOR VACUUMING A DRYING CHAMBER

• Main Author: Kesuma Fitri, Rahma
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/38953
• Institution: Institut Teknologi Bandung

The ejector is a type of device for obtaining fluid flow by using high pressure motive fluid which is expanded through the nozzle. The purpose of this study was to test the performance of the water ejector for drying the chamber. Dry chamber condition can be vacuum condition or contain virtually no gas and water component fractions. The constituent components of the water ejector are the nozzle, mixing chamber and diffuser. From each constituent component the ejector has calculation criteria and ratio for the condition used by. Water ejector is designed using Ansys Fluent's Computational Fluid Dynamics. From the design there will be a relationship between variables and boundaries condition. Geometry effects will have an effect on the performance of the resulting water ejector, so the final result is the highest efficiency water ejector. The ejector uses water as a motive fluid, which is a variation of research that has ever existed. Water as a motive fluid is used at room temperature, low pressure, certain flow rates according to changing variables. So that the results obtained in the form of ejector design with new inputs and add characteristics in the design of the ejector using CFD.