EXPERIMENTAL & PERFORMANCE ANALYSIS OF A CORRUGATED PLATE HEAT EXCHANGER USING AL203 NANO FLUIDS

Abstract

In the experimental work are studies carried out to the corrugated PHE in a parallel flow and counter flow heat exchanger arrangement the heat transfer rate maximum increases with increase of volume weight percentage of nano particle in the cold fluid, the maximum heat transfer rate increases. in parallel flow and counter flow arrangement. It is also observed that with rise in inlet hot water temperature the heat flow is reduced in heat loss in counter flow. Hot fluid was made to flow in the central channel at different inlet temperature ranging from 40oC to 70oC to get cooled by the cold fluid in the upper and the lower channels. The required pump power increased with increased in nano fluid weight concentration for better heat transfer rate in effectiveness in lower consumption of power or LMTD reduced in lower rate of 0.5 - 1LPM. The experimental investigation it is observed that the average heat transfer non-dimensional exergy loss (E/Qmax) addition of Al2O3 nano particle in the cold fluid improve the exergy and effectiveness and saving the energy of the heat exchanger by 36%. Exergy analysis is also conducted. Exergy loss is reduced by mixing aluminium oxide nano particle in the cold fluid. The exergy analysis was conducted parallel flow and counter flow arrangement. Al2O3 nanoparticles were added in the cold fluid in different proportions to enhance the system performance. General relationship between energy effectiveness and exergy efficiency has been established as well. The result shows that the exergetic efficiency increases with the Reynolds number, hot and cold water inlet temperatures.