EVALUATION OF NANO REFRIGERANT THROUGH CAPILLARY TUBE IN VCRS BY USING CFD

THERMAL ENGINEERING

A refrigeration applications using nano-refrigerants has been presented. Over the decay,the researchers have contributed to achieve new ideas in the field of refrigeration systems. The refrigerants R-134a, R- 22,R-12,R600,R600a and R-22 are most widely used for heat transfer enhancements purpose with nano particles like copper oxide, alumina oxide, TiO2 and carbon CNT tube in vapour compression cycle. The applications of refrigeration systems are microelectronics cooling, double tube gas cooler, double pipe heat exchanger, domestic deep freezer, cylindrical horizontal annuli, evaporator and air conditions etc.Nanorefrigerants are framed when nanoparticles are scattered in refrigerant-based. The utilization of nano refrigerants is one of the procedures in improved heat transfer. This research includes the CFD analysis of nano-refrigerant through a capillary tube. The CFD studies showed that addition of aluminium nanoparticles increased the total heat transfer rate of the refrigerants which is predominant in the capillary tube when compared to the helical coil for the same operating conditions.

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