Journal Press India^®

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In the present thermodynamic analysis, the comparison and impact of environmental friendly refrigerants(R410a, R290, R600, R600a, R1234yf, R125, R717 and R134A)on multiple stage vapour compression refrigerator with flash intercooler and individual throttle valves (system-1) and multiple stage vapour compression refrigerator with flash intercooler and multiple throttle valves (system-2) has been carried out on the basis of energetic and exergetic approach. It wasobserved that for all selected ecofriendly refrigerants, energy and exergy efficiency of system-1is lower than sytem-2.For both systems R125 showed poorperformance in terms of energetic efficiency, second law efficiency and irreversibility whereas thermodynamic performances of hydrocarbon isobutene ( i.e. R600) and R717 gives better performance in comparison of other selected ecofriendly refrigerants. AsR717 is toxic in nature and restricted to limited applications, and also R600 is flammable in nature, therefore R-134a is suggested better for practical applications for both systemswithout taking of any safety precautions. Although thermodynamic performance of R134a is only 2-3% lesser than R600 and R134A is easily available in the market

Keywords

Vapour Compression; Refrigeration Systems; Flash-Intercooler; Ecofriendly Refrigerants

1. Camelia Stanciu, Adina Gheorghian, Dorin Stanciu, Alexandra Dobrovicescu, "Exergy analysis and refrigerant effect on the operation and performance limits of a one stage vapour compression refrigeration system, Termotehnia", 36-42,2011


2. V. Siva Reddy, N. L. Panwar, S. C. Kaushik Exergetic analysis of a vapour compression refrigeration system with R134a, R143a, R152a, R404A, R407C, R410A, R502 and R507A,Clean Techn Environ Policy, 14:47-53, 2011


3. J. U. Ahamed , R. Saidur, H. H. Masjuki, "A review on exergy analysis of vapor compression refrigeration system, Renewable and Sustainable Energy Reviews",15: 1593-1600


4. D. Szargut, R. Petela, Egzergia(1965),WNT


5. Szargut, D. Morris, F. Steward, 'Exergy analysis of thermal, chemical and metallurgical processes". New York: Hemisphere Publishing Corporation. 1998


6. R. Saidur, HH Masjuki, MY Jamaluddin, "An application of energy and exergy analysis in residential sector in Malaysia", Energy Policy, 35: 1050-63


7. Yongmei Xuan, Guangming Chen, "Experimental study on HFC-161 mixture as an alternative refrigerant to R502", Int J Refrigeration, Article in Press


8. R. Cabello, E. Torrella, J. Navarro, "Esbr, Experimental evaluation of a vapour compression plant performance using R134a, R407C and R22 as working fluids", Int J Applied Thermal Engineering.2004; 24:1905-1917


9. Mark W. Spatz, Samuel F. Yana Motta, "An evaluation of options for replacing HCFC-22 in medium temperature refrigeration systems", Int J Refrigeration.2004; 27:475-483


10. X. H. Han, Q. Wang, Z. W. Zhu, G M. Chen, "Cycle performance study on R32/R125/R161 as an alternative refrigerant to R407C", Int J Applied Thermal Engineering.2007; 27:2559-2565


11. R. Cabello, J. Navarro-Esbn, R. Llopis, E. Torrella, "Analysis of the variation mechanism in the main energetic parameters in a single-stage vapour compression plant", Int J Applied Thermal Engineering.2007; 27:167-176


12. Akhilesh Arora, S. C. Kaushik, "Theoretical analysis of a vapour compression refrigeration system with R502, R404A and R507A", Int J Refrigeration.2008; 31:998-1005


13. H. M Getu, P.K Bansal, "Thermodynamic analysis of an R744-R717 cascade refrigeration system", Int J Refrigeration.2008; 31:45-54


14. M. Mohanraj, S. Jayaraj, C. Muraleedharan, P. Chandrasekar, "Experimental investigation of R290/R600a mixture as an alternative to R134a in a domestic refrigerator", Int J Thermal Sciences.2009; 48:1036-1042


15. M. Padilla, R. Revellin, J. Bonjour, "Exergy analysis of R413A as replacement of R12 in a domestic refrigeration system", Int J Energy Conversion and Management.2010; 51:2195-2201


16. S. A. Klein, F. Alvarado, "Engineering Equation Solver, Version 7.441. F Chart Software, Middleton, WI, 2005