THERMAL CONDUCTIVITY COMPARISONS OF ORIGINAL AND OXIDIZED MULTIWALLED CARBON NANOTUBES-WATERBASED FLUIDS
DOI:
https://doi.org/10.11113/jt.v76.5645Keywords:
Nanofluids, nanoparticles, multiwalled carbon nanotubes, thermal conductivityAbstract
Nanofluids are a new class of fluids engineered by dispersing nanoparticles in base fluids. The addition of small amount nanoparticles may enhance the thermo-physical properties of the original liquids. In this study, thermal conductivity of pristine and modified multiwalled carbon nanotubes (MWCNT) in water-based fluids was prepared and investigated at various temperatures ranging from 6OC to 45OC. Stable and homogeneous MWCNT nanofluids were successfully produced with an addition of polyvinylpyrrolidone (PVP) as the dispersing agent using physical agitation process. The addition of MWCNT into a fluid leads to the enhancement of its thermal conductivity. The prepared nanofluids, with good fluidity, stability, and high thermal conductivity, is a potential advanced coolant in thermal energy engineering and energy consumption saving.Â
References
Nakayama, W. 2013. Heat in Computers: Applied Heat Transfer in Information Technology. Journal of Heat Transfer. 136(1). 013001-22.
Herwig, H. 2013. High Heat Flux Cooling of Electronics: The Need for a Paradigm Shift. Journal of Heat Transfer. 135(11). 111013-2.
Mohamad, I.S., Thiru, S. C. & Hamid, S. B. A. 2013. A Comparison Study on the Heat Transfer Behavior of Aqueous Suspensions of Rod Shaped Carbon Nanotubes with Commercial Carbon Nanotubes. Advanced Materials Research. 667(2013): 35-42.
Yu, W. & Choi, S.U.S. 2003. The Role of Interfacial Layers in the Enhanced Thermal Conductivity of Nanofluids: A Renovated Maxwell Model. The Journal of Nanoparticle Research. 5: 167-171.
Mohamad, I. S., Chitrambalam, S. T. & Hamid, S. B. A. 2012. Investigations on the Thermo-physical Properties of Nanofluid-based Carbon Nanofibers under Modified Testing Conditions. International Journal of Nanoelectronic and Materials. 5: 25-30.
Chen, L., Xie, H., Li, Y. & Yu, W. 2008. Nanofluids Containing Carbon Nanotubes Treated by Mechanochemical Reaction. Thermochimica Acta. 477: 21-24.
Paritosh Garg, Jorge L. Alvarado, Charles Marsh, Thomas A. Carlson, David A. Kessler, Kalyan Annamalai. 2009. An Experimental Study on the Effect of Ultrasonication on Viscosity, and Heat Transfer Performance of Multi-Wall Carbon Nanotube-Based Aqueous Nanofluids. International Journal of Heat and Mass Transfer. 52: 5090-5101.
Sohel Murshed, S. M. & Nieto de Castro, C. A. 2011. Contribution of Brownian Motion in Thermal Conductivity of Nanofluids. Proceedings of the World Congress on Engineering III.
Jang, S. P. & Choi, S.U.S. 2004. Role of Brownian Motion in the Enhanced Thermal Conductivity of Nanofluids. Applied Physics Letters. 84(21): 4316-4318.
Eapen, J., Li, J. & Yip, S. 2007. Beyond the Maxwell Limit: Thermal Conduction in Nanofluids with Percolating Fluid Structures. Physical Review E: Statistical Physics, Plasmas, Fluids. 76: 062501.
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.
