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Journal of Nanomaterials
Volume 2017 (2017), Article ID 5802016, 6 pages
https://doi.org/10.1155/2017/5802016
Research Article

Enhanced Thermal Conductivity for Nanofluids Containing Silver Nanowires with Different Shapes

1College of Engineering, Shanghai Polytechnic University, Shanghai 201209, China
2Shanghai Innovation Institute for Materials, Shanghai 200444, China
3Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China

Correspondence should be addressed to Wei Yu and Guiwen Huang

Received 4 August 2017; Accepted 20 September 2017; Published 10 December 2017

Academic Editor: Jingchao Zhang

Copyright © 2017 Liye Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nanofluids are the special agents to enhance the heat transfer property of the common fluids, and most of the thermal additives are the spherical nanoparticles. Up to now, the 1D thermal additives are not well exploited. In this paper, a kind of silver nanowires (AgNWs) with well-distributed shape and aspect ratio is synthesized. The results show that when we use the AgNWs prepared by the poly-vinyl-pyrrolidone (PVP) with a specific molecular weight of 40000, the thermal conductivity enhancement of nanofluids prepared by that kind of silver nanowires is as high as 13.42% when loading 0.46 vol.% AgNWs, and the value of the thermal conductivity is 0.2843 W/m·K, which is far more than the case when loading the same volume of spherical silver particles. Besides, we use H&C model to fit the experimental results and the experimental results are consistent with the model.