Synthesis and thermal conductivity of microfluidic copper nanofluids_中国颗粒学会

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Partic. vol. 8 no. 3 pp. 262-271 (June 2010)
doi: 10.1016/j.partic.2010.03.001

Synthesis and thermal conductivity of microfluidic copper nanofluids

Xiaohao Wei, Liqiu Wang*

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lqwang@hku.hk

Abstract

A microfluidic chemical solution method is developed for the synthesizing Cu nanofluids. The method replaces batch-based macroreactors in the conventional chemical solution method by continuous-flow microfluidic microreactors, thereby enabling the synthesis of nanofluids with various microstructures. The Cu nanofluids synthesized by this technology show a better stability, remaining stable even after more than 100 h standing. The measured thermal conductivity shows that the presence of nanoparticles can either upgrade or downgrade fluid conductivity, a phenomenon predicted by the recent thermal-wave theory of nanofluids.

Keywords

Nanofluids; Heat conduction; Thermal conductivity; Synthesis