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Relevant bibliographies by topics / Vapor ejector refrigeration

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Journal articles

Academic literature on the topic 'Vapor ejector refrigeration'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Vapor ejector refrigeration"

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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7

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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Abstract:

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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