Performance Analysis of a Refrigeration System Using Nano Fluid

Abstract

In air conditioning and refrigeration systems, evaporating heat transfer is crucial. The 
most popular substitute refrigerant in refrigeration devices, including air conditioners 
and home refrigerators, is HFC 134a. Despite HFC134a's relatively significant potential 
for global warming, several nations have confirmed that it is a long-term substitute 
refrigerant. The performance of the refrigeration system is enhanced by the addition of 
nanoparticles to the refrigerant, which improves the thermophysical and heat transport 
characteristics of the refrigerant. In this experiment, CFD heat transfer analysis utilizing 
the FLUENT program was used to examine the impact of CuO-R134a in the vapour 
compression system on the evaporating heat transfer coefficient. In accordance with 
Indian national norms, an experimental equipment was constructed. According to the 
experimental research, the nanorefrigerant refrigeration system operates as intended. 
Using nano CuO concentrations ranging from 0.05 to 1% and particle sizes ranging 
from 10 to 70 nm, heat transfer coefficients were assessed using FLUENT for heat flux 
ranging from 10 to 40 kW/m2. The findings show that using nanoCuO enhances the 
evaporator heat transfer coefficient.