Theoretical and Experimental Activity on Ejector Refrigeration
TLDR
In this article, the authors used a thermodynamic code accounting for real gas behavior to give a first design of the mixing chamber and diffuser according to the CRMC criterion and also gave an estimation of the friction loss along the diffuser.About:
This article is published in Energy Procedia.The article was published on 2014-01-01 and is currently open access. It has received 16 citations till now. The article focuses on the topics: Diffuser (thermodynamics) & Injector.read more
Citations
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Turbulence modeling of a single-phase R134a supersonic ejector. Part 1: Numerical benchmark
TL;DR: In this paper, the authors reported a numerical analysis of a supersonic ejector in single-phase conditions using R134a as the working fluid and compared the predicted entrainment ratio with the experimental data of Garcia del Valle et al. (2014).
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Performance analysis of a supersonic ejector cycle working with R245fa
TL;DR: A supersonic ejector chiller for industrial use is currently being developed and tested as part of a project cooperation between Frigel s.p.a and DIEF as mentioned in this paper.
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Review on the simulation models of the two-phase-ejector used in the transcritical carbon dioxide systems
TL;DR: This review reported and systematically categorized the state-of-the-art simulation methods aiming at two-phase ejectors and could provide an overview of the simulation methods for scholars, developers and manufacturers using the most appropriate one into certain applications of ejector technology.
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Energy and exergy investigation of ejector refrigeration systems using retrograde refrigerants
TL;DR: In this paper, a numerical model was developed and validated with previous experimental data of both types of working fluids, including cis-2-butene and 1butene, to examine system performance and compare between the selected refrigerant candidates.
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Energy and exergy performance of the IHX position in ejector expansion refrigeration systems.
J.L. Rodríguez-Muñoz,V. Pérez-García,Juan M. Belman-Flores,J.F. Ituna-Yudonago,A. Gallegos-Muñoz +4 more
TL;DR: In this paper, a theoretical analysis of the influence of an internal heat exchanger (IHX) position on an ejection-compression refrigeration system was presented, where the IHX was placed in two different positions: 1) promoting the superheating in the compressor suction EC+IH X-1 and 2) promoting superhealing in the suction nozzle EC+ IH X X-2.
References
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Recent developments in ejector refrigeration technologies
TL;DR: In this paper, the authors provide a literature review on the recent development in ejectors, applications of ejector refrigeration systems and system performance enhancement and provide useful guidelines regarding background and operating principles of ejectors.
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A small capacity steam-ejector refrigerator: experimental investigation of a system using ejector with movable primary nozzle
Satha Aphornratana,Ian W. Eames +1 more
TL;DR: In this article, an experimental study of a steam-ejector refrigerator using an ejector with a primary nozzle that could be moved axially within the mixing chamber section was performed.
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A new prescription for the design of supersonic jet-pumps: the constant rate of momentum change method
TL;DR: In this paper, the authors describe and evaluate a theoretical study into a new method for designing jetpumps of the type used in jet-pump cycle refrigerators, which assumes a constant rate of momentum change within the diffuser passage of a supersonic jetpump.
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Results of an experimental study of an advanced jet-pump refrigerator operating with R245fa
TL;DR: In this article, an experimental jet-pump refrigeration system was designed and constructed to assess the performance of R245fa (1, 1,1,3,3-pentafluoropropane) as a suitable refrigerant.