Relevant bibliographies by topics / Ejector Refrigeration Cycle

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Ejector Refrigeration Cycle'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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Journal articles on the topic "Ejector Refrigeration Cycle"

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Yosaf, Salem, and Hasan Ozcan. "Effect of Ejector Location in Absorption Refrigeration Cycles Using Different Binary Working Fluids." International Journal of Air-Conditioning and Refrigeration 27, no. 01 (2019): 1950003. http://dx.doi.org/10.1142/s2010132519500032.

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In this study, three novel modifications of ejector-absorption refrigeration cycles (E-ARC) are investigated to evaluate the effect of ejector location on cycle performances. In the first modification (triple pressure level absorption refrigeration cycle TPL-ARC), the ejector is located at the evaporator inlet. In the second modification (double ejector absorption refrigeration cycle DE-ARC), two ejectors are used; one is located at the evaporator inlet and the other at the absorber inlet, which are coupled to each other. In the third modification (low pressure condenser absorption refrigerati
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Abdellaoui, Ezzaalouni Yathreb, and Lakdar Kairouani Kairouani. "Thermodynamic analysis of a new dual evaporator CO2 transcritical refrigeration cycle." Archives of Thermodynamics 38, no. 1 (2017): 39–62. http://dx.doi.org/10.1515/aoter-2017-0003.

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AbstractIn this work, a new dual-evaporator CO2transcritical refrigeration cycle with two ejectors is proposed. In this new system, we proposed to recover the lost energy of condensation coming off the gas cooler and operate the refrigeration cycle ejector free and enhance the system performance and obtain dual-temperature refrigeration simultaneously. The effects of some key parameters on the thermodynamic performance of the modified cycle are theoretically investigated based on energetic and exergetic analysis. The simulation results for the modified cycle indicate more effective system perf
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D.K.Joshi. "Ejector as an Expansion Device in Vapor Compression, Refrigeration Cycle– A study." Research and Reviews on Experimental and Applied Mechanics 3, no. 1 (2020): 1–7. https://doi.org/10.5281/zenodo.3903633.

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<em>Two-phase ejectors have been attaining attention in recent years due to their capability to directly improve the COP of the cycle .Two-phase ejectors play a vital role as an expansion device in vapor compression refrigeration systems .Also can find prospective applications in many other industrial processes. Use of two-phase flow in the ejector is important to optimize energy saving of the system. It also explains the effects of geometrical parameters of the ejector as an expansion control mechanism on the performance of vapor compression refrigeration cycle. In the study, the effect of wo
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Raza, Waseem, Gwang Soo Ko, and Youn Cheol Park. "A Study on the Combined Driven Refrigeration Cycle Using Ejector." International Journal of Air-Conditioning and Refrigeration 29, no. 01 (2021): 2150004. http://dx.doi.org/10.1142/s2010132521500048.

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The rising need for thermal comfort has resulted in a rapid increase in refrigeration systems’ usage and, subsequently, the need for electricity for air-conditioning systems. The ejector system can be driven by a free or affordable low-temperature heat source such as waste heat as the primary source of energy instead of electricity. Heat-driven ejector refrigeration systems become a promising solution for reducing energy consumption to conventional compressor-based refrigeration technologies. An air-conditioning system that uses the ejector achieves better performance in terms of energy-saving
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Ben Zid, Nihel, Nejib Hajji, and Mohamed El Ganaoui. "COP enhancement and comparison of different absorption cooling systems." MATEC Web of Conferences 330 (2020): 01032. http://dx.doi.org/10.1051/matecconf/202033001032.

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The absorption refrigeration machines represent a good alternative to compression refrigeration machines but the major problem of this type of refrigeration lies in the COP, which seems to be less efficient. Several researches are carried out to improve the performances of these machines such as the combination with the technology of the ejectors. In this work, we are interested in the three ammonia-water absorption cycles: Single effect absorption, Ejector-absorption and Combined ejector-flash tank absorption cycles. A gas-gas ejector would be installed between the generator and the condenser
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Goudarzi, Koorosh, and AliReza Taghizadeh. "A Combined Power and Ejector Refrigeration Cycle System for Thermal Energy Recovery from the Waste Heat of Internal Combustion Engine." Journal of Energy and Power Technology 05, no. 01 (2023): 1–23. http://dx.doi.org/10.21926/jept.2301006.

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In this paper, due to the importance of energy recovery from internal combustion engines and the increasing human growing need for power and refrigeration, a two-cycle power and refrigeration system consisting of an organic Rankine cycle and an ejector refrigeration cycle is investigated analytically. The proposed system with the ability to use the ejector&lt;span dir="RTL"&gt; as an effective and economical system, can produce simultaneous power and refrigeration by drawing thermal energy from the exhaust gas and engine coolant in the form of a novel cycle. This study analyzes the proposed no
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Mukhtar, Hamza K., and Saud Ghani. "Hybrid Ejector-Absorption Refrigeration Systems: A Review." Energies 14, no. 20 (2021): 6576. http://dx.doi.org/10.3390/en14206576.

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Absorption Refrigeration Systems (ARS) are potential alternatives to direct expansion (DX) refrigeration systems. This review focused on the incorporation of an ejector into absorption refrigeration cycles to constitute Hybrid Ejector-Absorption Refrigeration Systems (HEARS). The ejector adds several advantages to the absorption refrigeration systems depending on its location in the cycle. The two prevalent configurations of HEARS are Triple pressure level (TPL-HEARS), and Low Pressure Condenser (LPC-HEARS). Previous studies revealed the preference of the latter configuration as it allows lowe
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Mukhtar, Hamza K., and Saud Ghani. "Hybrid Ejector-Absorption Refrigeration Systems: A Review." Energies 14, no. 20 (2021): 6576. http://dx.doi.org/10.3390/en14206576.

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Absorption Refrigeration Systems (ARS) are potential alternatives to direct expansion (DX) refrigeration systems. This review focused on the incorporation of an ejector into absorption refrigeration cycles to constitute Hybrid Ejector-Absorption Refrigeration Systems (HEARS). The ejector adds several advantages to the absorption refrigeration systems depending on its location in the cycle. The two prevalent configurations of HEARS are Triple pressure level (TPL-HEARS), and Low Pressure Condenser (LPC-HEARS). Previous studies revealed the preference of the latter configuration as it allows lowe
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LITTLE, ADRIENNE B., and SRINIVAS GARIMELLA. "A REVIEW OF EJECTOR TECHNOLOGY FOR REFRIGERATION APPLICATIONS." International Journal of Air-Conditioning and Refrigeration 19, no. 01 (2011): 1–15. http://dx.doi.org/10.1142/s2010132511000351.

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This paper provides a comprehensive review of ejector technology for refrigeration applications, combining an understanding of basic fluid flow fundamentals within the ejector with application in cycle-level development. An ejector is a passive device that requires no external mechanical input or moving parts. A high-velocity motive stream produces a low-pressure region into which a suction flow is entrained, resulting in a pressure rise of the suction flow and mixing between the two streams to provide a pumping effect. The first part of this review addresses the progression from experiment-ba
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Sumeru, Kasni, Luga Martin, Farid Nasir Ani, Henry Nasution, and Farid Nasir Ani. "Energy Savings in Air Conditioning System Using Ejector: An Overview." Applied Mechanics and Materials 493 (January 2014): 93–98. http://dx.doi.org/10.4028/www.scientific.net/amm.493.93.

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There are two ejector configurations described in the present study: ejector refrigeration cycle and the ejector as an expansion device. The use of waste heat from the car engine and industry as a heat-driven energy for air conditioning system in automobile and building can save energy. Although the ejector refrigeration cycle has a low COP, the use of waste heat as a heat-driven energy incurs a lower operational cost compared with vapor compression refrigeration system. In addition, an ejector as an expansion device can be applied in the vapor compression refrigeration cycle to improve the pe
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Dissertations / Theses on the topic "Ejector Refrigeration Cycle"

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Wu, Shenyi. "Investigation of ejector re-compression absorption refrigeration cycle." Thesis, University of Nottingham, 1999. http://eprints.nottingham.ac.uk/10369/.

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This thesis describes a theoretical and experimental investigation of the ejector re-compression lithium bromide absorption refrigeration cycle. In this novel cycle, a steam ejector is used to enhance the concentration process by compressing the vapour to a state that it can be used to re-heat the solution from where it was evolved. Since this cycle recovers the heat otherwise wasted in a conventional absorption cycle, the energy performance of the cycle is improved. The theoretical study shows that the improvement of the efficiency is proportional to the performance of the steam ejector. A CO
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LEAL, MARCO AURELIO. "THERMODYNAMIC ANALYSIS OF A REFRIGERATION CYCLE USING AN EJECTOR." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1992. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=19458@1.

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Apresenta-se neste trabalho uma análise termodinâmica comparativa entre o desempenho de um ciclo de refrigeração que usa um ejetor como um pré-expansor do fluido refrigerante e um ciclo padrão de refrigeração por compressão de vapor. Na primeira etapa do trabalho é desenvolvido um modelo matemático em regime é desenvolvido um modelo matemático em regime permanente baseado na primeira Lei da Termodinâmica para cada um dos ciclos estudados. O modelo é capaz de prever o funcionamento de cada um dos componentes do ciclo, assim como do sistema geral. Ao modelo do ejetor é dada uma especial atenção.
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Pridasawas, Wimolsiri. "Solar-driven refrigeration systems with focus on the ejector cycle." Doctoral thesis, Stockholm : Department of Energy Technology, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4151.

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Nattes, Pierre-Henri. "Optimisation d'un cycle au CO2 dans le domaine du transport frigorifique." Thesis, Paris, CNAM, 2018. http://www.theses.fr/2018CNAM1190.

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L’objectif de cette étude est d’optimiser un cycle frigorifique au CO2 pour une application dans le transport frigorifique. Les performances de l’unité doivent être supérieures à celles d’une machine avec une injection de vapeur et un compresseur bi-étagé déjà commercialisé. Suite à l’étude de plusieurs solutions, un éjecteur couplé à un échangeur interne semble la solution la plus intéressante.Un banc expérimental est créé à partir de l’unité possédant une injection de vapeur. L’éjecteur est muni d’une aiguille pour pouvoir assurer une recherche de la haute pression optimale. L’échangeur inte
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Vargas, Luiz Carlos Pereira. "An?lise te?rico-experimental do coeficiente de perfomance (COP) de um sistema de refrigera??o por jato-compress?o." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15635.

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Made available in DSpace on 2014-12-17T14:58:05Z (GMT). No. of bitstreams: 1 LuizCPV_DISSERT.pdf: 4145604 bytes, checksum: cc3f28e35e926d7f9d6bd3a0d675dcd3 (MD5) Previous issue date: 2010-04-26<br>The use of waste heat of energy conversion equipment to produce a cooling effect, consists currently in a very interesting way of efficiency improvement of energy systems. The present research has as intention the theoretical and experimental study of a new intermittent refrigeration system ejector cycle characteristics, with use of waste heat. Initially, was doing a bibliographical survey about th
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Artuso, Paolo. "Theoretical and experimental analysis of the transient behaviour of refrigerated transport systems." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3424865.

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Refrigerated transport systems are employed in the cold chain to supply the consumer with safe, high-quality perishable freights. Differently from static refrigeration systems, refrigerated transport equipment is required to perform reliably in a wide range of ambient temperatures and under extremely variable weather conditions (solar radiation, cloudiness, rain etc…). Refrigerated vehicles include vans, rigid trucks and semi-trailers. The refrigerating system has to ensure a precise temperature control of the internal cargo space: given a certain perishable freight requiring a certain set-poi
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Bouzrara, Ali. "Etude expérimentale des éjecteurs : Application à la récupération de l'énergie de détente des machines frigorifiques au CO2." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI065/document.

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Les fluides naturels employés en réfrigération et en conditionnement d’air possèdent de faibles PRG et sont de ce fait une véritable alternative aux HFC. Cependant, leur généralisation se heurte à des limites provenant de leur caractère toxique (NH3), inflammable (hydrocarbures, NH3) ou de leurs caractéristiques thermodynamiques défavorables (CO2). Leur utilisation accrue nécessite la mise en œuvre de composants spécifiques (échangeurs de chaleur intermédiaire, éjecteur) qui sans qui les performances seraient inférieures à celles obtenues avec les HFC (COPCO2 = 55 % du COPHFC-134a pour des tem
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Dittmann, Florian. "Study and Optimisation of Supersonic Ejectors for Heat Recovery Refrigeration Cycles." Electronic Thesis or Diss., Université Paris sciences et lettres, 2024. http://www.theses.fr/2024UPSLM029.

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Des éjecteurs supersoniques pour des cycles de réfrigération à récupération de chaleur sont modélisés, étudiés et optimisés à l’aide de la mécanique des fluides numérique et la méthode de l’état adjoint discret. L’étude est étayée par une analyse des rapports entre les phénomènes complexes de l’écoulement, les limites thermodynamiques et la performance des cycles. Un modèle 1D généralisé est développé et utilisé pour concevoir des éjecteurs et prédire leur taux d’entraînement afin de déterminer les conditions optimales d’un cycle. La résolution des équations Navier-Stokes moyennées 2D-axisymét
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Lu, Lin-Tao. "Études théorique et expérimentale de la production de froid par machine tritherme à éjecteur de fluide frigorigène." Grenoble INPG, 1986. http://www.theses.fr/1986INPG0130.

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Les études expérimentales effectuées dans diverses conditions de fonctionnement du système permettent de déterminer les conditions thermodynamiques optimales pour une géométrie d'éjecteur donnée ou de définir une conception optimale de l'éjecteur dans des conditions thermodynamiques imposées. L'efficacité mesurée au cours des essais atteint 0,7 pour des températures de sources égales à 85°C, 30°C et 15°C. Un modèle global unidimensionnel confirme les données expérimentales. Une étude comparative du système à éjecteur avec les systèmes à absorption montre que le système à éjecteur est compétiti
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PAGANINI, DARIO. "Optimization of an ejector refrigeration cycle." Doctoral thesis, 2013. http://hdl.handle.net/2158/791131.

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Work proposes the optimization of an ejector refrigeration cycle, based on one-dimensional modelling techniques and some innovative design criteria for the ejector. A specific model is proposed for mixing chamber and the method of Constant Rate of Momentum Change integrating friction losses is used for supersonic diffuser design. An experimental apparatus has been developed and realized to validate optimization results and design criteria.
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Book chapters on the topic "Ejector Refrigeration Cycle"

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Beran, Tobias, Jan Gärtner, and Thomas Koch. "Charge-Air Cooling of High Performance Engines in an Ejector Refrigeration Cycle." In Proceedings. Springer Fachmedien Wiesbaden, 2021. http://dx.doi.org/10.1007/978-3-658-35588-3_19.

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Anjum, Aftab, Radhe Shyam Mishra, and Samsher. "Energy and Exergy Analysis of Combined Ejector Refrigeration Cycle Using Eco-Friendly Refrigerants." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-7709-1_13.

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Belwal, Karun, Gulshan Sachdeva, and Bharat Sharma. "Performance Evaluation of a Dual Evaporator Ejector Refrigeration Cycle Using Gouy-Stodola Equation." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0918-2_24.

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Kumar, Sachin, and Virender Chahal. "A Review of Various Kinds of Cascade Refrigeration Cycle and Application of Ejector Mechanism." In Advances in Materials and Mechanical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0673-1_20.

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Karacayli, Ibrahim, Lutfiye Altay, and Arif Hepbasli. "Investigating the Effects of Design Parameters on the Performance of an Ejector–Expansion Refrigeration Cycle for Different Refrigerants." In Springer Proceedings in Energy. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-30171-1_56.

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Fabian, Ahrendts, Thoma Werner, and Köhler Jürgen. "Amelioration of Energy Efficiency for Refrigeration Cycles by Means of Ejectors." In Energy and Thermal Management, Air Conditioning, Waste Heat Recovery. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-47196-9_13.

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Butrymowicz, Dariusz Józef, Kamil Leszek Śmierciew, Jerzy Gagan, and Jarosław Karwacki. "Ejection Refrigeration Cycles." In Handbook of Research on Advances and Applications in Refrigeration Systems and Technologies. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8398-3.ch005.

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The chapter presents the development of ejector refrigeration technology that strongly reduces the greenhouse gases emission by using natural refrigerants and also dramatically reduces the need for the electric power. This is accomplished by using free or inexpensive heat – either solar or waste heat, as the main source of energy instead of electricity. Nowadays, the thermal driven refrigeration system, especially with low-temperature heat source became more and more popular. The operation of the ejection cycle using low-temperature heat source can be considered as very attractive and the ejec
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"Refrigeration Cycle with an Ejector." In Applying Engineering Thermodynamics. WORLD SCIENTIFIC, 2021. http://dx.doi.org/10.1142/9789811205248_0020.

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Sun, Xiaocun, Lingfeng Shi, Hua Tian, and Gequn Shu. "A novel combined cooling and power cycle integrated ejector refrigeration and composition adjustment for stationary engine waste heat recovery." In Proceedings of the 7th International Seminar on ORC Power System (ORC 2023), 2024th ed. Editorial Universidad de Sevilla, 2024. http://dx.doi.org/10.12795/9788447227457_12.

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The combined cooling and power cycle has wide applications ascribed to the feasibility of simultaneously providing cooling and electricity. The layout comprised of vapor compression refrigeration cycle and Organic Rankine Cycle by sharing condenser is one of the most common structures. However, for this kind of structure, the high temperatures of working fluid in compressor outlet and expander outlet aggravate the condensation load and lead to the decline of system performance. This study proposes a novel combined cooling and power cycle integrated of ejector refrigeration and composition adju
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Zhang, Yonghao, Lingfeng Shi, and Gequn Shu. "Thermodynamic modification of CO2-based combined cooling and power cycle with ejector." In Proceedings of the 7th International Seminar on ORC Power System (ORC 2023), 2024th ed. Editorial Universidad de Sevilla, 2024. http://dx.doi.org/10.12795/9788447227457_51.

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CO2-based combined cooling and power cycle (CCP) has received increasing attentions especially in scenarios with diversified energy desires for its excellent natural properties. In this paper, an ejector is introduced into a conventional CCP system to reduce exergy loss in refrigeration throttling. A refrigerated truck is selected as the typical application scenario. And the simulated results indicate that approximately 28% of the expansion work during throttling can be recovered by the ejector, concurrently saving 0.3kW and 0.7kW compression work with respect to 10.8kW and 6.5kW cooling load
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Conference papers on the topic "Ejector Refrigeration Cycle"

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Forster, Franz X., Alexander E. Deravanessian, Matthew J. Nazarian, Mariano Rubio, and Kevin R. Anderson. "CFD Analysis of Refrigeration Cycle Ejector." In ASME 2021 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/fedsm2021-62237.

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Abstract The use of ejector cycles for increased performance and efficiency is becoming more prevalent in industry. The goal of this study is to evaluate an ejector using Computational Fluid Dynamics (CFD) to evaluate flow patterns, perform trade studies varying the type of refrigerant, and determine the entrainment ratio for each working fluid, over a range of boundary condition pressures, set at points along the ejector’s flow path. The 2012 Toyota Prius V is one of the first automobiles using an ejector cycle in their internal cabin refrigeration system. The DENSO Corporation ejector hardwa
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Takeuchi, Hirotsugu, Haruyuki Nishijima, and Toru Ikemoto. "World's First High Efficiency Refrigeration Cycle with Two-Phase Ejector: “EJECTOR CYCLE”." In SAE 2004 World Congress & Exhibition. SAE International, 2004. http://dx.doi.org/10.4271/2004-01-0916.

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Menegay, Peter, and Alan Kotnhauser. "Ejector expansion refrigeration cycle with underexpanded motive nozzle." In Intersociety Energy Conversion Engineering Conference. American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/6.1994-3835.

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Abuan, Binoe E., and Menandro S. Berana. "Ejector Profile Modelling for Heat-Driven Ejector Refrigeration System Without Involving Shock." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-52521.

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Heat-driven ejector refrigeration system is one of the fastest emerging technologies in cooling applications for years. This is due to the fact that it can harness cooling capacity from waste heat sources at above 80 °C. Low coefficient of performance (compared to commercial vapor compression systems) is the major disadvantage of the said system, and thus it became a topic of research studies in the field of cooling. The work required by the compressor in a vapor compression cycle (VCC) can be eliminated by using waste heat from any available heat source. Although a relatively lower COP was ob
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Tischendorf, Christian, Denise Janotte, Ricardo Fiorenzano, and Wilhelm Tegethoff. "Investigation of Energy Dissipation in an Ejector Refrigeration Cycle." In The 7 International Modelica Conference, Como, Italy. Linköping University Electronic Press, 2009. http://dx.doi.org/10.3384/ecp09430090.

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Redo, Mark Anthony B., and Menandro S. Berana. "Geothermal-Driven Ejector Refrigeration System." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64949.

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A mathematical model of a heat-driven ejector refrigeration system that uses geothermal energy as the heat source was established. Philippine low-enthalpy geothermal resources were investigated and became the bases in computing for the heat at the generator part of the ejector refrigeration system. Analysis and comparison of the performance of the cycle considering working fluids like ammonia (R717) and R134a as the refrigerants were conducted. The properties of those fluids were based on an available thermodynamic database of various refrigerants. The governing principles and conservation equ
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Tischendorf, Christian, Christian Lucas, Juergen Koehler, and Wilhelm Tegethoff. "Visual Investigation of an Ejector Motive Nozzle." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38507.

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Previous investigations by other authors, e.g. Lorentzen [1], have shown that in a conventional refrigeration cycle significant throttling losses occurs. With the help of an ejector, these losses can be reduced. As a result, the energetic efficiency (COP) of the refrigerant system will be improved. Investigations show that CO2 ejector cycles are feasible and that some systems have already been commercialized successfully. The key issues in the optimization of the ejector used in a refrigeration cycle are the geometries of the different ejector parts. To optimize the geometry, a deeper understa
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Fang-tian, Sun, Ma Yi-tai, Wei Yun-xia, and Li De-ying. "Exergy Analysis of Transcritical Carbon Dioxide Refrigeration Cycle with an Ejector." In 2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM). IEEE, 2011. http://dx.doi.org/10.1109/cdciem.2011.113.

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SECKIN, Candeniz. "Performance analysis of a biomass-fired cooling/power combined cycle (Ejector Refrigeration and Kalina cycle)." In 2019 International Conference on Power Generation Systems and Renewable Energy Technologies (PGSRET). IEEE, 2019. http://dx.doi.org/10.1109/pgsret.2019.8882691.

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Zhang, Hailun, Lei Wang, Lei Jia, and Xinli Wang. "Performance investigation of automobile waste heat recovery system for ejector refrigeration cycle." In 2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2018. http://dx.doi.org/10.1109/iciea.2018.8397750.

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