Enhanced Thermal Conductivity of Nanofluid by Synergistic Effect of Multi-Walled Carbon Nanotubes and Fe₂O₃ Nanoparticles

Abstract:

This study investigates the synergistic effect of combining multi-walled carbon nanotubes (MWNTs) and Fe₂O₃ nanoparticles on thermal conductivity of nanofluid. Results show that low percentage hybrid fillers loading improve thermal conductivity of water based nanofluid, due to the good dispersion and interfacial adhesion, which is confirmed by scanning electron microscope. Furthermore, the hybrid fillers provide synergistic effect on heat conductive networks. The thermal conductivity enhancement of water based nanofluid containing 0.05 wt % MWNTs and 0.02 wt % Fe₂O₃ nanoparticles is 27.75%, which is higher than that of nanofluid containing 0.2 wt % single MWNTs or Fe₂O₃ nanoparticles.

• Periodical: Applied Mechanics and Materials (Volumes 548-549)
• Pages: 118-123
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.548-549.118
• Online since: April 2014
• Authors: Li Fei Chen*, Min Cheng, De Jun Yang, Lei Yang
• Keywords: Fe₂O₃ Nanoparticles, Multi-Walled Carbon Nanotube (MWCNT), Nanofluid, Synergistic Effect, Thermal Conductivity

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