CFD analysis and geometrical parameter investigation for the design of a high-efficiency supersonic ejector

This paper presents a CFD analysis of a supersonic ejector model for refrigeration systems. The model is validated by comparing it with previous studies and used to design a high-efficiency ejector. The effects of geometrical parameters such as convergence angle, throat length, divergence angle, and...

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Main Authors: Elgezzar M., Rashad A., Hassan M.S., Elnady T.
Format: Article
Language:English
Published: University of Belgrade - Faculty of Mechanical Engineering, Belgrade 2024-01-01
Series:FME Transactions
Subjects:
Online Access:https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2024/1451-20922401001E.pdf
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author Elgezzar M.
Rashad A.
Hassan M.S.
Elnady T.
author_facet Elgezzar M.
Rashad A.
Hassan M.S.
Elnady T.
author_sort Elgezzar M.
collection DOAJ
description This paper presents a CFD analysis of a supersonic ejector model for refrigeration systems. The model is validated by comparing it with previous studies and used to design a high-efficiency ejector. The effects of geometrical parameters such as convergence angle, throat length, divergence angle, and diffuser length on the entrainment ratio are studied. The optimal values of these parameters are found and used to modify the base model. The performance of the optimized model is evaluated under different operating conditions. The paper aims to provide design guidelines for supersonic ejectors in refrigeration applications.
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spelling doaj.art-48a7878070cf4635a831a12d1b5ea3a82024-03-06T14:12:11ZengUniversity of Belgrade - Faculty of Mechanical Engineering, BelgradeFME Transactions1451-20922406-128X2024-01-0152111110.5937/fme2401011E1451-20922401001ECFD analysis and geometrical parameter investigation for the design of a high-efficiency supersonic ejectorElgezzar M.0Rashad A.1Hassan M.S.2Elnady T.3Military Technical College, Department of Mechanical Power & Energy, Cairo, EgyptMilitary Technical College, Department of Mechanical Power & Energy, Cairo, EgyptMilitary Technical College, Department of Mechanical Power & Energy, Cairo, EgyptMilitary Technical College, Department of Mechanical Power & Energy, Cairo, EgyptThis paper presents a CFD analysis of a supersonic ejector model for refrigeration systems. The model is validated by comparing it with previous studies and used to design a high-efficiency ejector. The effects of geometrical parameters such as convergence angle, throat length, divergence angle, and diffuser length on the entrainment ratio are studied. The optimal values of these parameters are found and used to modify the base model. The performance of the optimized model is evaluated under different operating conditions. The paper aims to provide design guidelines for supersonic ejectors in refrigeration applications.https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2024/1451-20922401001E.pdfsupersonic ejectornozzlecfd modelingentrainment ratiorefrigerationejector geometryperformance evaluation
spellingShingle Elgezzar M.
Rashad A.
Hassan M.S.
Elnady T.
CFD analysis and geometrical parameter investigation for the design of a high-efficiency supersonic ejector
FME Transactions
supersonic ejector
nozzle
cfd modeling
entrainment ratio
refrigeration
ejector geometry
performance evaluation
title CFD analysis and geometrical parameter investigation for the design of a high-efficiency supersonic ejector
title_full CFD analysis and geometrical parameter investigation for the design of a high-efficiency supersonic ejector
title_fullStr CFD analysis and geometrical parameter investigation for the design of a high-efficiency supersonic ejector
title_full_unstemmed CFD analysis and geometrical parameter investigation for the design of a high-efficiency supersonic ejector
title_short CFD analysis and geometrical parameter investigation for the design of a high-efficiency supersonic ejector
title_sort cfd analysis and geometrical parameter investigation for the design of a high efficiency supersonic ejector
topic supersonic ejector
nozzle
cfd modeling
entrainment ratio
refrigeration
ejector geometry
performance evaluation
url https://scindeks-clanci.ceon.rs/data/pdf/1451-2092/2024/1451-20922401001E.pdf
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AT rashada cfdanalysisandgeometricalparameterinvestigationforthedesignofahighefficiencysupersonicejector
AT hassanms cfdanalysisandgeometricalparameterinvestigationforthedesignofahighefficiencysupersonicejector
AT elnadyt cfdanalysisandgeometricalparameterinvestigationforthedesignofahighefficiencysupersonicejector