• GATTU RAJESH
• Prof K PRAHLADA RAO

Normal domestic refrigerators have very low heat transfer rates because of free convection on condenser. However these rates can be increased by using forced convection techniques. As an alternative, nano particles are used in this work. Because, nano fluids are considered a promising choice for several heat transfer applications. With the increasing awareness for energy saving and efficiency improvement in various thermal systems, including refrigeration systems, there is a growing interest in the refrigerant-based nano fluids owing to their superior thermo-physical properties. Nano refrigerants are a class of nano fluid, which consist of suspended nano particles in a base refrigerant. 0.5% W/w of SiO2 nano particles are mixed with POE oil and used as lubricant in compressor of refrigerator which uses r-134a as a refrigerant. In this project work, a diffuser is also added at the inlet of condenser. The purpose of diffuser is to increase the pressure energy so that there is availability of much amount of time for heat transfer. Experiments are conducted to analyse the performance.

R134a, SiO2 Nano particles, POE oil, Diffuser

"Performance Analysis Of VCR System Placing Diffuser At The Condenser Inlet Using SiO2 Nano Particle Mixed With POE Oil", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 10, page no.283-286, October-2017, Available :http://www.jetir.org/papers/JETIR1710045.pdf

"Performance Analysis Of VCR System Placing Diffuser At The Condenser Inlet Using SiO2 Nano Particle Mixed With POE Oil", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 10, page no. pp283-286, October-2017, Available at : http://www.jetir.org/papers/JETIR1710045.pdf