EXPERIMENTAL ANALYSIS ON ENHANCEMENT OF HEAT TRANSFER IN COMPACT HEAT EXCHANGER USING NANO PARTICLES

EXPERIMENTAL ANALYSIS ON ENHANCEMENT OF HEAT TRANSFER IN COMPACT HEAT EXCHANGER USING NANO PARTICLES

Dr.S. Sivalakshmi¹, Muralishankar. A²

¹ Associate Professor, Department of Mechanical Engineering, Government College of Engineering, Salem, India.

² PG Scholar, Department of Mechanical Engineering, Government College of Engineering, Salem, India.

ABSTRACT:

This study aims to experimentally investigate the enhancement of heat transfer in a compact heat exchanger (CHE) using nano particles, without considering the Reynolds number effect. In recent years, nanofluids have attracted attention as a promising alternative to traditional heat transfer fluids due to their improved thermal conductivity. The experimental setup consisted of a counter-flow CHE with a nanofluid circulating through the tubes. The nanofluid was prepared by dispersing Aluminium Oxide (Al₂O₃) and Copper (II) oxide (CuO) nanoparticles into distilled water. The effects of various parameters such as nanoparticle concentration and heat flux on heat transfer enhancement were investigated. Results showed that the addition of nanoparticles significantly increased the heat transfer rate compared to the base fluid. Moreover, the enhancement was found to be more significant at higher concentrations of nanoparticles and heat fluxes. The results also showed that the increase in heat transfer was due to the improved thermal conductivity of the nanofluid. Overall, the study demonstrated that the use of nanofluids in CHEs can significantly improve their performance, making them more efficient and compact for a wide range of industrial applications, even without considering the Reynolds number effect