COMPREHENSIVE REVIEW ON PERFORMANCE OF NANO REFRIGERANTS USED IN REFRIGERATION SYSTEM.

Environmental concern is the major issue faced in refrigeration and air conditioning systems. The performance of a refrigeration system can be altered through altering the system or changing the properties of working fluids such as refrigerants. Traditionally, CFC is widely used as a refrigerant in refrigeration systems. But this CFC refrigerant has high ODP and GWP value. So, other refrigerants such as HCFC and HFC is developed as an alternative to CFC refrigerant. However, this refrigerant also haVE high GWP values. So, the researchers are focused on designing an effective-refrigerant that reduce the emission due to usage of reduced power consumption. Recently, the use of Nanoparticles had gained attention in many engineering fields due to its excellent properties. This review article summarizes the use of different nanorefrigerant in the refrigerant system along with its performance. Initially, this article covers the use of traditional refrigerants Such as CFC. After that, the use of conventional refrigerants such as HCFC and HFC as a substituent for CFC is displayed. After that integration of Nanoparticles along with conventional refrigerant for performance-improvement is studied. Following that various Nanoparticles such as TiO2, SiO2 and CuO dispersed along with conventional refrigerant are also studied. The analysis is done through evaluating the performance of nanorefrigerant based on COP and Power consumption. Analysis showed that the application of Nanoparticles along with refrigerant attains better performance in comparison with conventional refrigerant. Ultimately, the difficulties and possibilities for further study are highlighted, which will be helpful for the field's newcomers and manufacturers. [ABSTRACT FROM AUTHOR]