Thermal conductivity and thermal diffusivity of CNT-nanofluids and Al2O3-nanofulids were measured by the transient short-hot-wire method. The uncertainty of their measurements is estimated to be within 1% for the thermal conductivity and 5% for the thermal diffusivity. Three different shapes of Al2O3 particles were prepared for Al2O3–water nanofluids. For the thermal conductivity of Al2O3-water nanofluids, there are differences in the enhancement of thermal conductivity for differences in particle shapes. Hardly any enhancement of thermal conductivity was observed for SWCNT-water nanofluids because the volume fraction of SWCNT was extremely low. However, we consider by increasing the volume fraction of SWCNTs, it will be possible to enhance the thermal conductivity.
- Nanotechnology Institute
Measurement of Effective Thermal Conductivity of CNT-Nanofluids by Transient Short-Wire Method
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Kohno, M, Kimura, K, Moroe, S, Takata, Y, Woodfield, PL, & Fujii, M. "Measurement of Effective Thermal Conductivity of CNT-Nanofluids by Transient Short-Wire Method." Proceedings of the ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 1. Shanghai, China. December 18–21, 2009. pp. 407-412. ASME. https://doi.org/10.1115/MNHMT2009-18068
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