Study of Zinc Oxide Nanofluids for Heat Transfer Application

This paper describes preparation of zinc oxide (ZnO) based nanofluids in polymer matrix. The rheological properties of nanofluid were studied and were applied in heat transfer application. Heat transfer application of aqueous based ZnO nanofluid was tested and it was observed that, the presence of ZnO nanofluid effectively reduces the temperature propagation in a sono-chemically heated system. It is observed that the heat absorption capacity was increased by about 30–40% for the ZnO containing nanofluid. For the preparation of nanofluids, as synthesized ZnO nanoparticles were utilized after characterization by various modern tools such as UV-visible, Raman spectroscopy, XRD, SEM, Particle size analysis, and TGA studies. The average particle size of as prepared ZnO nanoparticle was in the range of 19 to 30 nm and XRD analysis revealed hexagonal crystal structure.

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