Open AccessA Study of a Fluid Flow in the Jet Ejector System Used in Industrial Applications
Author(s) -
Ionel Olaru
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1182/1/012056
Subject(s) - injector , refrigeration , refrigerant , nozzle , working fluid , diffuser (optics) , mechanical engineering , jet (fluid) , process engineering , supersonic speed , environmental science , engineering , gas compressor , aerospace engineering , physics , light source , optics
Over time, numerous studies have been carried out for jet ejectors used in refrigeration systems for various industrial applications or in solar energy recovery. These ejectors use steam or water as a working fluid because the water has a low cost, chemical stability and is safe to use. Of course, depending on the application of these ejectors in the industry, other fluids can be used. When are made the ejectors, in addition to the selection of the refrigerant, which is very important, it is taken into account, as well as its constructive design has a strong influence on its performance. In general, the compression ratio depends on the nozzle and the diffuser geometry. Compared to other systems for industrial applications, ejector systems have some advantages: simplicity in construction, high spread and low cost. However, we cannot observe that they also have a lower coefficient of performance than conventional systems, which limited the widespread application of ejector systems.