A review on performance of refrigeration system using nano-refrigerant & nano-lubricant

The increasing demand for energy-efficient and eco-friendly refrigeration technologies has spurred research into nanofluids. Nano-refrigerant & Nano-lubricant, as advanced nanofluids are revolutionizing the design and analysis of thermal engineering systems by enhancing thermo-physical and heat transfer properties of working fluids thereby improving the overall system performance. These nanofluids, formed by suspending nanoparticles in base fluids, can be directly used in vapor compression refrigeration systems without any modifications significantly boosting heat transfer in refrigeration and air-conditioning devices. The heat transfer performance of any thermal engineering system depends on critical properties such as the thermal conductivity and viscosity of the working fluid, which are ultimately influenced by the concentration and stability of nanoparticles in the base fluid. This paper provides a comprehensive review of recent research on the performance of refrigeration and air conditioning systems through the application of various nano-refrigerants and nano-lubricants. It focuses on cooling capacity, coefficient of performance, and overall energy efficiency. Challenges such as nanoparticle stability, optimal concentration and system compatibility issues are also discussed. This study aims to promote energy-efficient and environmentally friendly nano-refrigerants & nano-lubricants which hold significant promise for the next generation of sustainable refrigeration & air-conditioning systems.