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Experimental Investigation on Performance of Vapor Compression Refrigeration System using Nanorefrigerant (R134a+Al2O3) with/without Evaporative Condenser

Niraj N. Raja, Avinash D. Khanderao


In traditional refrigeration system the main focus of researchers is always to improve its performance by reducing work of compression and enhancing the heat transfer rate in different heat exchangers and this can be achieved by adopting suitable technique. In this research work experiment is carried out on vapor compression refrigeration test rig using nanorefrigerant of R134a as base refrigerant and nanoparticles of aluminium oxide Al2O3 in different concentration so that variation in heat transfer rate can be observed. The different concentration of Al2O3 (gm/litre) in R134a were prepared, studied and tested experimentally in VCR test rig. The test rig consists of evaporative condenser as conventional air-cooled condenser does not perform well in hot and dry climatic conditions. This evaporative air cooling offers desired heat rejection rate in condenser at high pressure and enhances system performance. The investigations show that nanorefrigerant (R134a + Al2O3 0.5 g/L Concentration and 50–60 nm size) with evaporative condenser recorded the highest coefficient of performance among all other combination of nanorefrigerant. This indicates that nanorefrigerant can be safely experimented without any blockage or difficulty. The conventional VCR system operated with evaporative condenser without nanorefrigerant also shows improvement in performance compared to simple VCR with air cooled condenser. This system is suitable for hot and dry climate conditions. 


Vapor compression refrigeration system, nanorefrigerant, evaporative condenser, coefficient of performance

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M.A. Onakade, D.S. Adeleken, O.S. Ohunakin, O.E. Atiba, 2019 Journal of Physics.: Conf. Ser. 1378042083 Experimental Performance of the Energetic Characteristics of a Domestic Refrigerator with Al2O3 Nanolubricant and LPG Refrigerant. doi:10.1088/1742– 6596/1378/4/042083

G Senthilkumar, K Saravanan, K Ajay Kumar, IOP Conf. Series: Materials Science and Engineering 197 (2017) 012028. Investigation on Nano Refrigeration. doi:10.1088/1757– 899X/197/1/012028

M. Anish, G. Senthil Kumar, N. Beemkumar, B. Kanimozhi, T. Arunkumar, International Journal of Ambient Energy. Performance study of a domestic refrigerator using CuO/AL2O3- R22 nanorefrigerant as a working Fluid. link: 750.2018.1451376.

Pravesh Kumar Kushwaha, Pavan Shrivastava, Ashish Kumar Shrivastava, International Journal of Mechanical and Production Engineering. Volume 4, Issue 3, Mar. 2016. Experimental Study of Nanorefrigerant (R134a+Al2O3) Based on Vapor Compression Refrigeration System.

Amrat Kumar Dhamneya, S.P.S. Rajput, Alok Singh, Case Studies in Thermal Engineering 11 (2018) 55–61. Comparative performance analysis of ice plant test rig with TiO2-R-134a nano refrigerant and evaporative cooled condenser. pg no 55–61.

D.S. Adeleken, O.S. Ohunakin, Jatinder Gill, O.E. Atiba, I.P. Okokpujie, A.A. Atiyaro, 2nd International Conference on Sustainable Materials Processing and Manufacturing (SMPM 2019) Procedia Manufacturing 35 (2019) 1222–1227 Experimental Investigation on vapor compression refrigeration system with 15nm TiO2-R600a nanorefrigerant as a working fluid. pg no. 1222–1228

Damola S. Adelekan, Olayinka S. Ohunakin, Taiwo O. Babarinde, Moradeyo K. Odunfa, Richard O. Leramo, Sunday O. Oyedepo, Damilola C. Badejo, Case Studies in Thermal Engineering 9(2017)55–61. Experimental performance of LPG refrigerant charges with varied concentration of TiO2 nano-lubricants in a domestic refrigerator. article link: 02.

B. Pitchia Krishnan, R. Vijayan, K. Gokulnath, S. Vivek, and G. Sathyamoorthy, International Conference on Materials, Manufacturing and Machining 2019 AIP Conference Proceedings July 2019. Experimental analysis of a vapour compression refrigeration system by using nano

refrigerant (R290/R600a/Al2O3). DOI: 10.1063/1.5117995



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