EXPERIMENTAL ANALYSIS ON VCR SYSTEM USING ALTERNATIVE REFRIGERANTS (R600A) BY ADDING NANO PARTICLES (Cuo) WITH DIFFUSER AND NOZZLE

Now a days refrigeration systems have shown many applications in both industrial and domestic Sectors. The majority of domestic refrigerators works on vapour compression refrigeration system. Vapour compression refrigeration system uses expansion valve to reduce the pressure of liquid refrigerant and delivers to the evaporator. The process of throttling is isenthalpic, which means that the kinetic energy produced during the pressure reduction is dissipated and eventually wasted. Nozzle is placed at the inlet of evaporator to increase the flow of refrigerant. Diffuser is placed at the outlet of compressor which provides additional compression to the refrigerant and reduces mechanical work for the compressor. The leakages of widely used hydrofluorocarbon refrigerants from refrigerator shows severe impact on the environment like global warming, ozone depletion, etc. In order to overcome this problem a mixture of nano particles with R600A is used in this experiment. By adding Nano particles it can increase cooling capacity of the system and reduces compressor work.