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Journal articles on the topic 'Vapor ejector refrigeration'

Author: Grafiati

Published: 6 September 2023

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1

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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2

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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3

Ouelhazi, I., Y. Ezzaalouni, and L. Kairouani. "Parametric analysis of a combined ejector-vapor compression refrigeration cycle." International Journal of Low-Carbon Technologies 15, no. 3 (2020): 398–408. http://dx.doi.org/10.1093/ijlct/ctaa011.

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Abstract From the last few years, the use of efficient ejector in refrigeration systems has been paid a lot of attention. In this article a description of a refrigeration system that combines a basic vapor compression refrigeration cycle with an ejector cooling cycle is presented. A one-dimensional mathematical model is developed using the flow governing thermodynamic equations based on a constant area ejector flow model. The model includes effects of friction at the constant-area mixing chamber. The current model is based on the NIST-REFPROP database for refrigerant property calculations. The

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4

Huang, B. J., C. B. Jiang, and F. L. Hu. "Ejector Performance Characteristics and Design Analysis of Jet Refrigeration System." Journal of Engineering for Gas Turbines and Power 107, no. 3 (1985): 792–802. http://dx.doi.org/10.1115/1.3239802.

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Ejector performance characteristics and design analysis of jet refrigeration systems were studied. It was shown that choking phenomena in the secondary vapor play a very important role in ejector performance. Ejector choking, which is usually associated with a hypothesized effective area for the secondary vapor in the mixing zone, takes place when the ejector is operating at a back pressure below the critical value. The effective areas analyzed from the experiment were shown not to be constant but to vary with operating conditions. A performance map was constructed from the experimental result

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5

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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6

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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8

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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9

Коновалов, Дмитро Вікторович, Роман Миколайович Радченко, Сергій Георгійович Фордуй, Фелікс Володимирович Царан, Віктор Павлович Халдобін та Артем Вікторович Грич. "Моделювання та програмний комплекс для дослідження функціонування ежектора в змінних режимах". RADIOELECTRONIC AND COMPUTER SYSTEMS, № 3 (5 жовтня 2021): 37–47. http://dx.doi.org/10.32620/reks.2021.3.04.

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One of the current directions of development of modern energy-saving and energy-efficient technologies for ship and stationery (including municipal) energy is the use of ejector refrigeration machines, which can be used for air conditioning systems together with an absorption refrigeration machine (cascade cycle) or vapor compressor refrigeration machine as part of cogeneration or trigeneration units. Such circuit solutions can be used together with ensuring the rational organization of work processes in the main elements of the refrigeration machine, in particular in the jet device - ejector,

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10

JIAUTHEEN, PARVEEN BANU, and MANI ANNAMALAI. "REVIEW ON EJECTOR OF VAPOR JET REFRIGERATION SYSTEM." International Journal of Air-Conditioning and Refrigeration 22, no. 03 (2014): 1430003. http://dx.doi.org/10.1142/s2010132514300031.

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Vapor Jet Refrigeration (VJR) system is attractive among various heat operated refrigeration systems, because it has the potential of utilizing low grade thermal energy with source temperature as low as 60°C, which could be harnessed from renewable energy, waste heat, automobile-exhaust, etc. Also absence of moving parts in this system resulted in lesser maintenance costs. In addition to that this system causes very low environmental pollution due to almost negligible consumption of high grade energy from fossil fuels for running a small liquid pump of the system. Although VJR was invented ver

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11

Boumaraf, Latra, and Rachedi Khadraoui. "Investigation on the Performance of a Solar Hybrid Refrigeration System Using Environmentally Friendly Fluids." International Journal of Heat and Technology 38, no. 4 (2020): 960–66. http://dx.doi.org/10.18280/ijht.380423.

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In order to evaluate the performance of a hybrid compression / ejection refrigeration system using solar energy at low or medium temperature, a simulation model of its behavior based on those of its various components has been developed. It includes in particular for the ejector, a 1-D model of the "constant section mixing" type developed in optimal transition regime. The refrigerants tested are steam for the ejector loop and the R1234yf (replacing the R134a) for the mechanical compression loop. The behavior of the H2O vapor flowing in the ejector is considered that of the perfect gas. The pro

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12

KUMAR, RAJ, and ANIL KUMAR. "ENERGY AND EXERGY ANALYSIS OF COMPACT POWER GENERATION AND HYBRID SOLAR ENERGY-WASTE HEAT-BASED TRIPLE EFFECT EJECTOR-VAPOR ABSORPTION REFRIGERATION CYCLE." International Journal of Air-Conditioning and Refrigeration 21, no. 04 (2013): 1350023. http://dx.doi.org/10.1142/s2010132513500235.

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An NH 3– H 2 O ejector-absorption refrigeration cycle, and an R-152a ejector refrigeration cycle are employed with a renewable energy power generator to make a proposed compact power generation and triple effect ejector-absorption refrigeration cycle. The exergy analysis of the cycle leads to a possible performance improvement. Approximately 71.69% of the input exergy is destructed due to irreversibilities in different components. Around 7.976% is available as the useful exergy output. The exhaust exergy lost to the environment is 20.33%, which is lower than the exhaust energy loss of 47.95%,

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13

Lei, Yu, Shengyu Li, Jun Lu, Ye Xu, Yong Yong, and Dingding Xing. "Numerical Analysis of Steam Ejector Performance with Non-Equilibrium Condensation for Refrigeration Applications." Buildings 13, no. 7 (2023): 1672. http://dx.doi.org/10.3390/buildings13071672.

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In recent years, there has been great interest in developing cooling systems with humidity- and temperature-independent control capabilities that can operate efficiently at varying temperatures. This paper proposes a bi-loop double-evaporator ejection–compression cycle, which utilizes low-grade heat and is suitable for the construction industry. The proposed cycle involves the concurrent operation of a vapor compression cycle and an ejector refrigeration cycle that enables it to handle altered pressure levels and operate with varying compression ratios all the way to a common condenser pressur

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14

Chen, Jin Zeng, Yan Fei Li, and G. H. Li. "A New Method for Desalination of Seawater With Steam-Ejector Refrigeration Plant." Applied Mechanics and Materials 94-96 (September 2011): 273–79. http://dx.doi.org/10.4028/www.scientific.net/amm.94-96.273.

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Desalination of seawater has played an important role in many arid regions in the world. There are many methods for desalination of seawater, such as MED, MSF, RO, ED, TVC, and MVC, etc. Different methods have different advantages and disadvantages. In the present work, a new method for desalination of seawater with steam-ejector refrigeration plant was introduced. The main purpose of the new method is a hybrid plant of TVC and steam-ejector refrigeration. In the hybrid circle, no other energy was need. When the steam-ejector refrigeration plant is working, the seawater as cooling water is int

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15

Poirier, Michel, Daniel Giguère, and Hristo Sapoundjiev. "Experimental parametric investigation of vapor ejector for refrigeration applications." Energy 162 (November 2018): 1287–300. http://dx.doi.org/10.1016/j.energy.2018.08.034.

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16

Коновалов, Дмитро Вікторович, Роман Миколайович Радченко, Сергій Георгійович Фордуй, Віктор Павлович Халдобін, Олексій Олегович Зєліков та Олександр Анатолійович Різун. "ВДОСКОНАЛЕННЯ ТЕПЛОВИКОРИСТОВУЮЧИХ ЕЖЕКТОРНИХ ХОЛОДИЛЬНИХ МАШИН ЗАСТОСУВАННЯМ АЕРОТЕРМОПРЕСОРНИХ ТЕХНОЛОГІЙ". Aerospace technic and technology, № 1 (26 лютого 2021): 60–66. http://dx.doi.org/10.32620/aktt.2021.1.06.

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The paper shows and analyzes circuit solutions for improving the existing schemes of ejector heat-using refrigeration machines, which are used as part of cogeneration plants. One of the promising areas is the use of an aerothermopressor, which implements the effect of thermogasdynamic compression, which is to increase the pressure while reducing the temperature in the evaporation of liquid, which injected into the flow of vapor moving at speed near the sound. To analyze the efficiency of ejector refrigeration machines, the developed calculation model was used, which takes into account the use

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17

Yadav, Ajay Kumar, and Neeraj. "Performance Analysis of Refrigerants R1234yf, R1234ze and R134a in Ejector-Based Refrigeration Cycle." International Journal of Air-Conditioning and Refrigeration 26, no. 03 (2018): 1850026. http://dx.doi.org/10.1142/s2010132518500268.

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Performance enhancement of refrigeration and heat pump systems by cycle modification is an emerging research topic now-a-days to reduce the electricity consumption leading to mitigate the problems related to the environmental pollution by utility power plants. Due to no moving parts, low cost, simple structure and low maintenance requirements, the use of two-phase ejector has become a promising cycle modification recently. Use of ejector as an expansion device by replacing the throttle valve in the vapor compression refrigeration cycle seems to be one of the efficient ways to reduce the thrott

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18

Pardiñas, Ángel Á., Michael Jokiel, Christian Schlemminger, Håkon Selvnes, and Armin Hafner. "Modeling of a CO2-Based Integrated Refrigeration System for Supermarkets." Energies 14, no. 21 (2021): 6926. http://dx.doi.org/10.3390/en14216926.

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An integrated energy system that consists of a centralized refrigeration unit can deliver the entire HVAC&R (heating, ventilation, air conditioning, and refrigeration) demand for a supermarket. CO2 (R744) is a natural refrigerant that is becoming increasingly popular for these centralized units due to significant energy and cost savings, while also being sustainable, safe, and non-toxic. This study focuses on the fully integrated CO2 refrigeration system configuration for a supermarket in Porto de Mos, Portugal, which was equipped and fully monitored through the EU-funded project MultiPACK

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19

Aidoun, Zine, Khaled Ameur, Mehdi Falsafioon, and Messaoud Badache. "Current Advances in Ejector Modeling, Experimentation and Applications for Refrigeration and Heat Pumps. Part 2: Two-Phase Ejectors." Inventions 4, no. 1 (2019): 16. http://dx.doi.org/10.3390/inventions4010016.

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Two-phase ejectors play a major role as refrigerant expansion devices in vapor compression systems and can find potential applications in many other industrial processes. As a result, they have become a focus of attention for the last few decades from the scientific community, not only for the expansion work recovery in a wide range of refrigeration and heat pump cycles but also in industrial processes as entrainment and mixing enhancement agents. This review provides relevant findings and trends, characterizing the design, operation and performance of the two-phase ejector as a component. Eff

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20

Wang, Rui, and Hong Tao Gao. "Experimental Analysis of Effects of Non-Structural Factors on Performance of Liquid-Gas Ejector Driven by Aqueous LiBr Solution." Advanced Materials Research 732-733 (August 2013): 472–75. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.472.

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Miniaturization and high-efficiency plays an important role in the further development of absorption refrigeration. In order to improve the mass transfer efficiency, liquid-gas ejector is intended to be used in refrigeration system. Experimental analysis of effects of non-structural factors on Liquid-Gas Ejector driven by aqueous LiBr solution is presented. Solution concentration, solution temperature, evaporator temperature and back pressure are varied to analyze the ejector performance. The results show that the large difference between refrigerant vapor pressure and partial pressure of solu

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21

Gjerasimovski, Aleksandar, Maja Sharevska, Natasha Gjerasimovska, Monika Sharevska, and Risto Filkoski. "Thermal characteristics of combined compressor - ejector refrigeration/heat pump systems for HVAC&R." Thermal Science, no. 00 (2023): 182. http://dx.doi.org/10.2298/tsci230513182g.

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Thermal characteristics of combined compressor - ejector refrigeration/heat pump systems applied in heating, ventilation, air conditioning and refrigeration (HVAC&R) of buildings are investigated. An original model for estimation of the thermal characteristics of the combined cycles is developed, to determine the influence of the evaporation, interstage, condensation, and generating temperature conditions on mechanical and thermal COPs of the combined system, and to optimize the thermal parameters of the cycle. Results are presented for different temperature conditions, with R134a as a sui

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22

Xing, Meibo, Gang Yan, and Jianlin Yu. "Performance evaluation of an ejector subcooled vapor-compression refrigeration cycle." Energy Conversion and Management 92 (March 2015): 431–36. http://dx.doi.org/10.1016/j.enconman.2014.12.091.

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23

Kumar, Kundan, Hitesh Kumar Gupta, and Pramod Kumar. "Analysis of a hybrid transcritical CO2 vapor compression and vapor ejector refrigeration system." Applied Thermal Engineering 181 (November 2020): 115945. http://dx.doi.org/10.1016/j.applthermaleng.2020.115945.

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24

Riani, Novi Indah, Syamsuri Syamsuri, and Rungky Rianata Pratama. "Simulasi Numerik Aliran Melewati Nozzle Pada Ejector Converging – Diverging Dengan Variasi Diameter Exit Nozzle." R.E.M. (Rekayasa Energi Manufaktur) Jurnal 2, no. 1 (2017): 19. http://dx.doi.org/10.21070/r.e.m.v2i1.796.

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In the process of cooling or refrigeration, are required components where capable to flow the fluid to create a cycle of the cooling process. Among some of the vapor compression systems, the usage of ejector is the simplest system. Ejector has three main parts: primary nozzle, mixing chamber and diffuser. Various experiments of steam ejectors developed to increase the value of the COP. Entrainment ratio directly affects to the COP value generated by the system, where the geometric shapes and operating conditions in the steam ejector will affect to the value entrainment ratio. This research was

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25

Wang, Xiao, Jianlin Yu, Mengliu Zhou, and Xiaolong Lv. "Comparative studies of ejector-expansion vapor compression refrigeration cycles for applications in domestic refrigerator-freezers." Energy 70 (June 2014): 635–42. http://dx.doi.org/10.1016/j.energy.2014.04.076.

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26

Sarkar, Jahar. "Ejector enhanced vapor compression refrigeration and heat pump systems—A review." Renewable and Sustainable Energy Reviews 16, no. 9 (2012): 6647–59. http://dx.doi.org/10.1016/j.rser.2012.08.007.

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27

Zhu, Yinhai, and Peixue Jiang. "Hybrid vapor compression refrigeration system with an integrated ejector cooling cycle." International Journal of Refrigeration 35, no. 1 (2012): 68–78. http://dx.doi.org/10.1016/j.ijrefrig.2011.09.003.

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28

Zhang, Zhenying, Xu Feng, Dingzhu Tian, Jianjun Yang, and Li Chang. "Progress in ejector-expansion vapor compression refrigeration and heat pump systems." Energy Conversion and Management 207 (March 2020): 112529. http://dx.doi.org/10.1016/j.enconman.2020.112529.

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29

Sharma, Dishant, Gulshan Sachdeva, and Dinesh Kumar Saini. "Optimized Refrigerant Flow Rate and Dimensions of the Ejector Employed in a Modified Ejector Vapor Compression System." International Journal of Air-Conditioning and Refrigeration 28, no. 04 (2020): 2050038. http://dx.doi.org/10.1142/s2010132520500388.

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This paper presents the analysis of a modified vapor compression cooling system which uses an ejector as an expansion device. Expanding refrigerant in an ejector enhances the refrigeration effect and reduces compressor work. Therefore, it yields a better coefficient of performance. Thermodynamic analysis of a constant area ejector model has been done to obtain primary dimensions of the ejector for given condenser and evaporator temperature and cooling capacity. The proposed model has been used to design the ejector for three refrigerants; R134a, R152a and R1234yf. The refrigerant flow rate and

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Mishra, Shubham, and Jahar Sarkar. "Performance characteristics of low global warming potential R134a alternative refrigerants in ejector-expansion refrigeration system." Archives of Thermodynamics 37, no. 4 (2016): 55–72. http://dx.doi.org/10.1515/aoter-2016-0027.

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AbstractPerformance assessment of ejector-expansion vapor compression refrigeration system with eco-friendly R134a alternative refrigerants (R152a, R1234yf, R600a, R600, R290, R161, R32, and propylene) is presented for air-conditioning application. Ejector has been modeled by considering experimental data based correlations of component efficiencies to take care of all irreversibilities. Ejector area ratio has been optimized based on maximum coefficient of performance (COP) for typical air-conditioner operating temperatures. Selected refrigerants have been compared based on area ratio, pressur

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31

Yoon, Jung-In, Chung-Lae Kim, and Chang-Hyo Son. "Performance comparison of refrigeration cycle using R134a with the vapor-liquid ejector." Journal of the Korean Society of Marine Engineering 39, no. 9 (2015): 890–94. http://dx.doi.org/10.5916/jkosme.2015.39.9.890.

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32

Elakhdar, M., B. M. Tashtoush, E. Nehdi, and L. Kairouani. "Thermodynamic analysis of a novel Ejector Enhanced Vapor Compression Refrigeration (EEVCR) cycle." Energy 163 (November 2018): 1217–30. http://dx.doi.org/10.1016/j.energy.2018.09.050.

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Yapıcı, Rafet. "Experimental investigation of performance of vapor ejector refrigeration system using refrigerant R123." Energy Conversion and Management 49, no. 5 (2008): 953–61. http://dx.doi.org/10.1016/j.enconman.2007.10.006.

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Gullo, Paride, Armin Hafner, Krzysztof Banasiak, Silvia Minetto, and Ekaterini Kriezi. "Multi-Ejector Concept: A Comprehensive Review on its Latest Technological Developments." Energies 12, no. 3 (2019): 406. http://dx.doi.org/10.3390/en12030406.

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The adoption of the EU F-Gas Regulation 517/2014 and the resulting development of the multi-ejector concept have led carbon dioxide to take center stage as the sole refrigerant (R744) in several applications. Therefore, a knock-on effect on the number of supermarkets relying on “CO2 only” refrigeration systems has been experienced. Additionally, a global consensus of commercial multi-ejector based R744 units is also intensifying as a consequence of both the promising results obtained and the other measures in force for environment preservation. Furthermore, the multi-ejector concept is expecte

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35

Wang, F., D. Y. Li, and Y. Zhou. "Analysis for the ejector used as expansion valve in vapor compression refrigeration cycle." Applied Thermal Engineering 96 (March 2016): 576–82. http://dx.doi.org/10.1016/j.applthermaleng.2015.11.095.

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Li, Yunxiang, and Jianlin Yu. "Thermodynamic Analysis of a Modified Ejector-Expansion Refrigeration Cycle with Hot Vapor Bypass." Journal of Thermal Science 28, no. 4 (2019): 695–704. http://dx.doi.org/10.1007/s11630-019-1124-6.

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37

Al-Dabbas, Mohammad Awwad Ali. "The Availability of Hybrid Nano Adsorption-Multi Stage Ejector Cooling Cycle with a Different Type of Steam Generator." Mathematical Modelling of Engineering Problems 8, no. 5 (2021): 826–36. http://dx.doi.org/10.18280/mmep.080520.

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Ejectors are a kind of pump that does not have any moving components. In certain cases, the motor fluid may be a liquid, steam, or another gas. The research focuses on using nano adsorption combined with a multi ejector to fuel a sophisticated nano adsorption power plant, which is equipped with three shapes of steam boiler generators. The simulation was accomplished by implementing it with the cooperation of the two programs MATLAB A and MATLAB B, together with a solid flow. To raise the temperature of the working fluid before it enters the generator, a jet pump is positioned before the genera

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Han, Yu, Xiaodong Wang, Wei Wang, Yuan Xien Lee, and Ao Li. "Numerical Investigation of Transonic Flow-Induced Spontaneous Condensation in Micro-Ejector Nozzles." Micromachines 14, no. 6 (2023): 1260. http://dx.doi.org/10.3390/mi14061260.

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Micro-cooling systems are compact refrigeration systems widely applicable in microchemical analysis, biomedicine, and microelectromechanical systems (MEMS). These systems rely on the use of micro-ejectors to achieve precise, fast, and reliable flow and temperature control. However, the efficiency of micro-cooling systems is hindered by spontaneous condensation occurring downstream of the nozzle throat and within the nozzle itself, impacting the performance of the micro-ejector. A micro-scale ejector mathematical model describing wet steam flow was simulated to investigate the steam condensatio

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Megdouli, K., B. M. Tashtoush, E. Nahdi, M. Elakhdar, A. Mhimid, and L. Kairouani. "Performance analysis of a combined vapor compression cycle and ejector cycle for refrigeration cogeneration." International Journal of Refrigeration 74 (February 2017): 517–27. http://dx.doi.org/10.1016/j.ijrefrig.2016.12.003.

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40

Sumeru, K., H. Nasution, and F. N. Ani. "A review on two-phase ejector as an expansion device in vapor compression refrigeration cycle." Renewable and Sustainable Energy Reviews 16, no. 7 (2012): 4927–37. http://dx.doi.org/10.1016/j.rser.2012.04.058.

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41

Tan, Yingying, Youming Chen, and Lin Wang. "Thermodynamic Analysis of a Mixed Refrigerant Ejector Refrigeration Cycle Operating with Two Vapor-liquid Separators." Journal of Thermal Science 27, no. 3 (2018): 230–40. http://dx.doi.org/10.1007/s11630-018-1004-5.

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Shen, Anxiang, Keli Guan, Xingyang Yang, Sumin Jin, and Le Yang. "Theoretical analysis of a novel liquid-vapor separation condensation ejector refrigeration cycle with zeotropic mixtures." Energy Conversion and Management 223 (November 2020): 113322. http://dx.doi.org/10.1016/j.enconman.2020.113322.

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Gil, Bartosz, and Jacek Kasperski. "Efficiency Evaluation of the Ejector Cooling Cycle using a New Generation of HFO/HCFO Refrigerant as a R134a Replacement." Energies 11, no. 8 (2018): 2136. http://dx.doi.org/10.3390/en11082136.

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Theoretical investigations of the ejector refrigeration system using hydrofluoroolefins (HFOs) and hydrochlorofluoroolefin (HCFO) refrigerants are presented and discussed. A comparative study for eight olefins and R134a as the reference fluid was made on the basis of a one-dimensional model. To facilitate and extend the possibility of comparing our results, three different levels of evaporation and condensation temperature were adopted. The generator temperature for each refrigerant was changed in the range from 60 °C to the critical temperature for a given substance. The performed analysis sh

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Радченко, Роман Миколайович, Богдан Сергійович Портной, Сергій Анатолійович Кантор, Веніамін Сергійович Ткаченко та Анатолій Анатолійович Зубарєв. "ОТРИМАННЯ І ВИКОРИСТАННЯ КОНДЕНСАТУ ПРИ ОХОЛОДЖЕННІ ПОВІТРЯ НА ВХОДІ ЕНЕРГОУСТАНОВКИ ТА ПРОБЛЕМА СЕПАРАЦІЇ КРАПЕЛЬНОЇ ВОЛОГИ З АЕРОЗОЛЬНОЇ СУМІШІ В ГРАДИРНЯХ". Aerospace technic and technology, № 5 (8 листопада 2018): 23–27. http://dx.doi.org/10.32620/aktt.2018.5.04.

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The processes of heat-humidity treatment (cooling with dehumidification) of air in a two-stage air cooling system at the inlet of a gas turbine unit applying a combined type heat-energized refrigeration mechanism, which consists of an absorption lithium-bromide high-temperature refrigeration mechanism to approximately 15 °C and a refrigerant ejector low-temperature refrigeration mechanism to 10 °С and below, which transform the heat of exhaust gases from gas turbine unit to the cold with the production of condensate in air cooling system as a by-product of air cooling has been analyzed. The an

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Zeng, Min-Qiang, Qiu-Yun Zheng, Xue-Lai Zhang, Fan-Yang Mo, and Xin-Rong Zhang. "Thermodynamic analysis of a novel multi-target temperature transcritical CO2 ejector-expansion refrigeration cycle with vapor-injection." Energy 259 (November 2022): 125016. http://dx.doi.org/10.1016/j.energy.2022.125016.

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Khan, Yasin, Md Walid Faruque, Mahdi Hafiz Nabil, and M. Monjurul Ehsan. "Ejector and Vapor Injection Enhanced Novel Compression-Absorption Cascade Refrigeration Systems: A Thermodynamic Parametric and Refrigerant Analysis." Energy Conversion and Management 289 (August 2023): 117190. http://dx.doi.org/10.1016/j.enconman.2023.117190.

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Rostamzadeh, Hadi, Towhid Gholizadeh, Sajjad Rostamzadeh, Shahram Vosoughi, and Ali Asghar Farshad. "Role of ejector expander in optimal inherently safety design of cascade NH3/Propane/CO2 vapor compression refrigeration systems." Process Safety and Environmental Protection 146 (February 2021): 745–62. http://dx.doi.org/10.1016/j.psep.2020.12.009.

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Lillo, Gianluca, Rita Mastrullo, Alfonso William Mauro, Raniero Trinchieri, and Luca Viscito. "Thermo-Economic Analysis of a Hybrid Ejector Refrigerating System Based on a Low Grade Heat Source." Energies 13, no. 3 (2020): 562. http://dx.doi.org/10.3390/en13030562.

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The rising of the global energy demand requires the use of alternative energy conversion systems employing renewable sources. In the refrigeration and air conditioning fields, heat driven ejector systems represent a promising way to produce the cooling effect by using available low-grade temperature sources. In this paper, a thermo-economic analysis of a waste heat recovery hybrid ejector cycle (WHRHEC) was carried out. A thermodynamic model was firstly developed to simulate a WHRHEC able to obtain chilled water with a cooling load of 20 kW, by varying the working fluids and the pinch point va

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Direk, Mehmet, Ümit İşkan, Cüneyt Tunçkal, Mehmet Selçuk Mert, and Fikret Yüksel. "An experimental investigation of ejector employed a dual-evaporator vapor compression refrigeration system under various entrainment ratios using R134a as the refrigerant." Sustainable Energy Technologies and Assessments 52 (August 2022): 102293. http://dx.doi.org/10.1016/j.seta.2022.102293.

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Riaz, Fahid, Kah Hoe Tan, Muhammad Farooq, Muhammad Imran, and Poh Seng Lee. "Energy Analysis of a Novel Ejector-Compressor Cooling Cycle Driven by Electricity and Heat (Waste Heat or Solar Energy)." Sustainability 12, no. 19 (2020): 8178. http://dx.doi.org/10.3390/su12198178.

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Low-grade heat is abundantly available as solar thermal energy and as industrial waste heat. Non concentrating solar collectors can provide heat with temperatures 75–100 °C. In this paper, a new system is proposed and analyzed which enhances the electrical coefficient of performance (COP) of vapour compression cycle (VCC) by incorporating low-temperature heat-driven ejectors. This novel system, ejector enhanced vapour compression refrigeration cycle (EEVCRC), significantly increases the electrical COP of the system while utilizing abundantly available low-temperature solar or waste heat (below

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