Flow Visualization Methods for Investigating an Induced Flow Ejector

Désévaux, Philippe; Prenel, Jean-Pierre; Hostache, Gérard

doi:10.1615/jflowvisimageproc.v2.i1.50

Cited by 14 publications

(8 citation statements)

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“…Of particular importance is the dissipative effect of the shock trains as it produces a compression and a shift from supersonic to subsonic conditions. There is considerable research concerning experimental [46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65] and numerical [66][67][68][69][70][71][72][73][74][75][76][77][78][79][80][81] studies of the flow phenomena inside an ejector. Even further detailed knowledge and modeling of these phenomena should allow for better component design.…”

Section: Supersonic Ejectormentioning

confidence: 99%

Ejector refrigeration: A comprehensive review

Besagni

Mereu

Inzoli

2016

Renewable and Sustainable Energy Reviews

406

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a b s t r a c tThe increasing need for thermal comfort has led to a rapid increase in the use of cooling systems and, consequently, electricity demand for air-conditioning systems in buildings. Heat-driven ejector refrigeration systems appear to be a promising alternative to the traditional compressor-based refrigeration technologies for energy consumption reduction. This paper presents a comprehensive literature review on ejector refrigeration systems and working fluids. It deeply analyzes ejector technology and behavior, refrigerant properties and their influence over ejector performance and all of the ejector refrigeration technologies, with a focus on past, present and future trends. The review is structured in four parts. In the first part, ejector technology is described. In the second part, a detailed description of the refrigerant properties and their influence over ejector performance is presented. In the third part, a review focused on the main jet refrigeration cycles is proposed, and the ejector refrigeration systems are reported and categorized. Finally, an overview over all ejector technologies, the relationship among the working fluids and the ejector performance, with a focus on past, present and future trends, is presented.

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Section: Supersonic Ejectormentioning

confidence: 99%

Ejector refrigeration: A comprehensive review

Besagni

Mereu

Inzoli

2016

Renewable and Sustainable Energy Reviews

406

View full text Add to dashboard Cite

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“…In improving the performance of an ejector system, an investigation of the flow inside the ejector is often required. Flow visualization methods are useful for determining the different flow patterns in induced flow ejectors [1], studying the pseudoshock structure of supersonic jets [2], and visualizing the turbulent structures of flow [3]. Desevaux [4] proposed a method for visualizing the mixing zone between two co-axial flows in an ejector with laser tomography.…”

Section: Introductionmentioning

confidence: 99%

CFD investigation on the flow structure inside thermo vapor compressor

Utomo

Woo

et al. 2010

Energy

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“…Flow visualization methods are useful to determine the different flow patterns occurring in ejectors [4], to study the pseudo-shock structure of supersonic jets [5] and to visualize the turbulent structures of the flow [6]. Desevaux (2001) proposed a method for visualizing the mixing zone between two co-axial flows in an ejector with laser tomography [7].…”

Section: Introductionmentioning

confidence: 99%

CFD analysis of flow phenomena inside thermo vapor compressor influenced by operating conditions and converging duct angles

Jeong

Utomo

et al. 2009

J Mech Sci Technol

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A thermo vapor compressor is simply a steam ejector employed in a multi effect desalination process. A greater understanding of flow phenomena inside an ejector plays an important role in its performance improvement. In this paper, CFD investigation has been carried out to study the flow structure inside a steam ejector. This research revealed the influence of operating pressures and ejector geometries on the flow structure and the performance of a steam ejector. The CFD results were verified with available experimental data. The angle of the converging duct as the geometry parameter was varied as 0 o , 0.5 o , 1 o , 2 o , 3.5 o and 4.5 o . The best performance was obtained by the ejector with converging duct angle of 1 o .

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Flow Visualization Methods for Investigating an Induced Flow Ejector

Cited by 14 publications

References 0 publications

Ejector refrigeration: A comprehensive review

Ejector refrigeration: A comprehensive review

CFD investigation on the flow structure inside thermo vapor compressor

CFD analysis of flow phenomena inside thermo vapor compressor influenced by operating conditions and converging duct angles

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