Heating and Cooling Mechanisms of Nano Fluids: Experimental Investigation

Abstract:

Heat transfer mechanisms and migration characteristics of volatile nanoparticles in a boiling fluid are complex phenomenon to understand. Boiling heat transfer mechanisms of the nanofluid (Al₂O₃/n-pentane) and migration characteristics of volatile Al₂O₃ nanoparticle are studied in this paper. Experiments were carried out using a sealed glass beaker partially filled with the nanofluid. Heat flux conditions and mass fractions of nanoparticles were varied to study the heat transfer mechanisms and migration characteristics of particles. Accuracy of experiments was checked using heat transfer correlations and repeated iterations. Also, in the present research, the solidification rate of pure water and water suspended with alumina nanoparticles is investigated to understand the freezing characteristics of nanofluids.

• Periodical: Nano Hybrids and Composites (Volume 17)
• Pages: 44-54
• DOI: https://doi.org/10.4028/www.scientific.net/NHC.17.44
• Online since: August 2017
• Authors: Natarajan Gobinath*, C.P. Karthikeyan
• Keywords: Al₂O₃, Boiling Heat Transfer, Freezing, Migration Characteristics, Nano Fluids, n-Pentane

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