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Thermodynamic Analysis of an Ejector-Absorption Refrigeration Cycle with Using NH3-H2O
Abstract:In this paper, the ejector-absorption refrigeration cycle is presented. This article deals with the thermodynamic simulation and the first and second law analysis of an ammonia-water. The effects of parameters such as condenser, absorber, generator, and evaporator temperatures have been investigated. The influence of the various operating parameters on the performance coefficient and exergy efficiency of this cycle has been studied. The results show that when the temperature of different parts increases, the performance coefficient and the exergy efficiency of the cycle decrease, except for evaporator and generator, that causes an increase in coefficient of performance (COP). According to the results, absorber and ejector have the highest exergy losses in the studied conditions.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1131437Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 563
 J. Fernandez-Seara, M. Vazquez, “Study and control of the optimal generation temperature in NH3–H2O absorption refrigeration systems,” Applied Thermal Engineering, 21, 2001, pp.343-357.
 X. J. Zhang, R. Z. Wang, “A new adsorption–ejector refrigeration and heating hybrid system powered by solar energy,” Applied Thermal Engineering, 22, 2002, pp.1245–1258.
 L. Kairouani, E. Nehdi, “Cooling performance and energy saving of compression‒absorption refrigeration system assisted by geothermal energy,” Applied Thermal Engineering, 26, 2006, pp.288‒294.
 M. Jelinek, A. Levy, I. Borde, “Performance of a triple-pressure level absorption/compression cycle,” Thermal Engineering, 42, 2012, pp. 2-5.
 S. F. Lee, S. A. Sherif, “Thermodynamic analysis of a lithium bromide/water absorption system for cooling and heating applications.” Int J Energy Res, 25, 2001, pp.1019–31.
 M. M. Talbi, B. Agnew, “Exergy analysis: an absorption refrigerator using lithium bromide and water as working fluids.” Appl Therm Eng, 20, 2000, pp.619–30.
 D. Hong, L. Tang, Y. He, G. Chen, “A novel absorption refrigeration cycle.” Applied Thermal Engineering, 30,2010, pp.2045-2050.
 C. Vereda, R. Ventas, A. Lecuona, M. Venegas, “Study of an ejector-absorption refrigeration cycle with an adaptable ejector nozzle for different working conditions.” Applied energy, 97, 2012, pp.305–312.
 G. K. Alexis, E. D. Rogdakis, “Performance characteristics of two combined ejector absorption cycles.” Applied Thermal Engineering, 22, 2000, pp.97-106.
 A. Sözen, T. Menlik, E. Özbas, “The effect of ejector on the performance of diffusion absorption refrigeration systems: An experimental study.” Applied Thermal Engineering, 33, 2012, pp.44-53.
 L. T. Chen, “A new ejector–absorber cycle to improve the COP of an absorption refrigeration system.” Appl Energy, 30, 1998, pp.37–51.
 A. Levy, M. Jelinek, I. Borde, “Numerical study on the design parameters of a jet ejector for absorption system.” Appl Energy, 72, 2002, pp.467–78.
 J. Wang, G. Chen, H. Jiang, “Study on a solar-driven ejection absorption refrigeration cycle.” Int J Energy Res, 22, 1998, pp.733–9.
 L. Shi, J. Yin, X. Wang, M. S. Zhu, “Study on a new ejection–absorption heat transformer.” Appl Energy, 68, 2001, pp.161–71.
 M. M. Rashidi, O. Anwar Bég, A. Aghagoli, “Utilization of waste heat in combined power and ejector refrigeration for a solar energy source.” International Journal of Applied Mathematics and Mechanics, 8, 2012, pp.1-16.
 J. Szargut, D. R. Morris, E. R. Steward, Exergy analysis of thermal, chemical, and metallurgical processes. New York: Hemisphere Publishing Corporation; 1988.
 A. Bejan, Advanced engineering thermodynamics. New York: Wiley; 1988.
 A. Sozen, “Effect of heat exchangers on performance of absorption refrigeration systems.” Energy Convers Manage, 42, 2001, pp.1699–716.
 M. Kilic, O. Kaynakli, “Second law-based thermodynamic analysis of water-lithium bromide absorption refrigeration system.” Energy, 32, 2007, pp.1505–1512.
 S. A. Klein, Engineering equation solver version 8.414. professional version. McGraw-Hill, 2009.