HEAT TRANSFER ENHANCEMENT IN DOMESTIC REFRIGERATOR USING R600A/POLYESTER OIL/NANO-CuO AS WORKING FLUID

Abstract

The performance of the refrigeration system depends upon the heat transfer capacity of the refrigerant. Normally R12, R22, R600, R600a and 134a are used as a refrigerant. This refrigerant heat transfer capacity is not so good and increase power consumption. Due to these limitations nano fluids are enhanced with the normal lubricant and increase the heat transfer capacity and reduce the power consumption. Copper oxide nano fluid is used for enhancing the heat transfer capacity of the refrigerant in the refrigeration System. In this experiment heat transfer enhancement was investigated numerically on the surface of a refrigerator by using R600a CuO nano-refrigerants, where nano fluids could be a significant factor in maintaining the surface temperature within a required range. The addition of nano particles to the refrigerant results in improvements in the thermo physical properties and heat transfer characteristics of the refrigerant, thereby improving the performance of the refrigeration system.The performance calculation energy consumption ,COP.This paper work will help to analyze the actual performance of the domestic refrigerator and to suggest the eco friendly refrigerant for future domastic refrigerators the power consumption of the refrigerator decreased by the actual cycle.