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Improvement of Cop of Vapor Compression Refrieration System by Using Nano-Refrigerants

Author(s):

K.Veera Raghavalu , Mlritm, Hyderabad; P.Sreenivasulureddy, Mlritm, Hyderabad; A.Rizwan Khan, Mlritm, Hyderabad; D.Vimal Kumar, Mlritm, Hyderabad; T.Prashanth, Mlritm, Hyderabad

Keywords:

Nano refrigerant, Al2O3 and TiO2 nanoparticle, COP, performance

Abstract

In this paper, an experimental work was investigated on Nano refrigerant .Nano-refrigerants Al2O3-Ethylene glycol oil and TiO2-Ethylene glycol oil were used as Nano- refrigerant in R134a vapor compression refrigeration system. The fabrication of experimental setup was in the lab. The cooling capacity test was performed on the system. The results indicate that Al2O3 and TiO2 Nano refrigerant works normally and safely in the refrigeration system. The refrigeration system performance was better when Nano-refrigerants with R134a as working fluid. The COP of vapor compression refrigeration system improved 12.08% with addition of Al2O3 and COP improved 21.18% with the addition of TiO2 compare with R-134a. The results indicate that heat transfer coefficient increases with the usage of Nano Al2O3 and TiO2. Thus using Al2O3 and TiO2 Nano refrigerants in refrigeration system is found to be feasible.

Other Details

Paper ID: RTIMEP029
Published in: Conference 7 : RTIME-2k16
Publication Date: 01/05/2016
Page(s): 172-175

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