Journal Press India^®

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The global warming and ozone depletion are serious issues and search for newand ecofriendly refrigerants for reducing global warming. The methods forimproving first law and second law efficiency have been considered by mixingnano particles mixed in secondary evaporator circuit with R718 and newelydeveloped ecofriendly refrigerants of low global warming potentials isproposed in this paper. Detailed energy and exergy analysis of vapourcompression refrigeration systems have been carried out using R1234yf (of GWP=4) and R1234ze (of GWP=6) in terms of performance parameter forvarious ecofriendly refrigerants for replacing R134a and otherrefrigerants after 2030. The numerical computations have been carried out for variablecompressor speed vapour compression refrigeration systems. It wasobserved that first law and second law efficiency improved by 25% bymixing Copper nano particles in the R-1234yf and 18% using R1234zeecofriendly refrigerants in the primary circuit of vapour compressionrefrigeration systems.

Keywords

Vapour Compression Refrigeration Systems; Energy and Exergy Analysis; First and Second Law Analysis; Irreversibility Analysis; VCR with Direct nano Particles Mixed Refrigerants.

1. Johnson. E. Global warming from HFC. Environ. Impact Asses.1998, 18, 485-492


2. V. Siva Reddy, N. L Panwar, S. C. Kaushik, Exergyanalysis of a vapour compression refrigeration systemwith R134a, R143a, R152a, R404A, R407C, R410A, R502 and R507A. Clean Techn Environ Policy.2012, 14:47-53


3. R. Saravanakumar, V. Selladurai, Exergy analysis of adomestic refrigerator using eco friendly R290/R600arefrigerant mixture as an alternative to R134a.Int J Therm Anal Calorim.2013


4. C. Nikolaidis, D. Probert, Exergy method analysis of atwo-stage vapour-compression refrigeration-plantsperformance. Int J Applied Thermal Engineering, 1998, 60:241-256


5. S. Kumar, M. Prevost, R. Bugarel, Exergy analysis of avapour compression refrigeration system. Heat Recovery Systems & CHP.1989, 9, 151-157


6. Mahmood Mastani Joybari, Mohammad Sadegh Hatamipour, Amir Rahimi, Fatemeh Ghadiri Modarres- Exergy analysis and optimization of R600a as areplacement of R134a in a domestic refrigeratorsystem. International Journal of refrigeration, 2013, 36, 1233-1242.


7. J. U. Ahamed, R. Saidur, H. H Masjuki, M.A Sattar- An analysis of energy, exergy and sustainabledevelopment of a vapour compression refrigerationsystem using hydrocarbon, International journal of Green energy, 2012, 9, 707-717.


8. B. O. Bolaji, M. A. Akintunde, T. O. Falade. Comparative analysis of performance of three ozonefriends HFC refrigerants in a vapor compressionrefrigerator. Int J Sustainable Energy & Environment, 2011, 2, 61-64.


9. RecepYumrutas, Mehmet Kunduz, Mehmet Kanoglu-Exergy analysis of vapor compression refrigerationsystems. Exergy, An International Journal, 2002, 2, 266-272.


10. M. Padilla, R. Revellin, J. Bonjour. Exergy analysis of R413A as replacement of R12 in a domesticrefrigeration system. Int J Energy Conversion and Management, 2010, 51, 2195-2201.


11. H. M Getu, P. K Bansal. Thermodynamic analysis ofan R744-R717 cascade refrigeration system. Int J Refrigeration, 2008, 31, 45-54


12. Mark W. Spatz, Samuel F. Yana Motta. An evaluationof options for replacing HCFC-22 in mediumtemperature refrigeration systems. Int J Refrigeration, 2004, 27, 475-483.


13. X. H. Han, Q. Wang, Z. W. Zhu, G. M. Chen. Cycleperformance study on R32/R125/R161 as analternative refrigerant to R407C. Int J Applied Thermal Engineering, 2007, 27, 2559-2565


14. E. Halimic, D. Ross, B. Agnew, A. Anderson, I. Potts. A comparison of the operating performance ofalternative refrigerants. Int J Applied Thermal Engineering, 2003, 23, 1441-1451


15. Yongmei Xuan, Guangming Chen. Experimental studyon HFC-161 mixture as an alternative refrigerant to R502. Int J Refrigeration. Article in Press.


16. R. Cabello, J. Navarro-Esbrı, R. Llopis, E. Torrella. Analysis of the variation mechanism in the mainenergetic parameters in a single-stage vapourcompression plant. Int J Applied Thermal Engineering, 2007, 27, 167-176


17. R. Cabello, E. Torrella, J. Navarro-Esbr, Experimentalevaluation of a vapour compression plant performanceusing R134a, R407C and R22 as working fluids. Int J Applied Thermal Engineering, 2004, 24, 1905-1917


18. R. S. Mishra, R. K. Jaiswal, Methods for Improving Thermodynamic Performance of Variable Speed Vapour Compression Refrigeration Systems Using Nanorefrigerent in Primary Circuit, Nature & Environment, 20(2), 2015, 26-47


19. R. S. Mishra, Kapil Chopra, V. Sahni, Irreversibility Optimization Using Energy-Exergy Analysis of Three Stage Vapour Compression Refrigeration Systems with Flash-Intercooler Using Ecofriendly Refrigerants (R410a, R290, R600, R600a, R1234yf, R125, R717 And R134A) for Reducing Global Warming and Ozone Depletion, Nature & Environment, 20(2), 2015, 73-89